LM1801 Datasheet

LM1801 datasheet specificies that the IC is an extremely low power comparator with a high current, open-collector output stage. The typical supply is only 7µA, yet in its switches state the comparator can source or sink 0.5A. The LM1801 is designed to operate in a standby mode for 1 year, powered by a 9V alkaline battery. Provision is made for operation from supplies of up to 14V.

download LM1801 datasheet

LM1801 Features

• 8V to 14V operation
• direct drive to horn
• internal zener for supply regulation
• parallel comparator capability
• extremely low standby current drain
• 2 references on chip
• low battery detector
• 0.5 output transistor
• output clamp diodes on chip

LM1801 applications

• intrusion alarms
• water leak detectors
• gas leak detectors
• overvoltage crowbars
• battery operated monitors

UM3763 Datasheet

The UM3763 datasheet specifies that this IC is a CMOS LSI circuit which contains analog signal amplifiers and frequency detector for driving motor. It is designed for use in electronic devices and other applications. It is packed with 8 pins DIP.

UM3763 pin configuration

UM3763 features

• typical 3V operating voltage
• a motor can be driven by connecting a NPN transistor
• RC oscillator with one external resistor
• on-chip analog signal amplifiers
• use of whistle for controlling
• the output stage will change when the device senses effective frequency

download UM3763 datasheet

UM3763 block diagram

LM1014 Datasheet

LM1014 is a monolithic IC specially designed to provide a low cost motor speed regulator for low voltage DC motors.

LM1014 features

• 5V to 20V operating voltage range
• short circuit protection
• remote pause control
• saturation voltage 0.1V
• motor connected to ground for ease of RF suppression
• motor torque compensation
• low current consumption

download LM1014 datasheet

7402 Datasheet

7402 IC is a device containing four independent gates each of which performs the logic NOR function. 7402 package options include: plastic small outline, ceramic chip carriers, flat packages, plastic and ceramic DIPs. The SN7402, SN74LS02 and SN74S02 are characterized for operation from 0°C to 70°C.

7402 connection diagram and function table

DM7402 datasheet

SN7402 datasheet

MCP1755 Datasheet

The MCP1755/1755S is a family of CMOS low-dropout (LDO) voltage regulators that can deliver up to 300 mA of current while consuming only 68.0 µA of quiescent current (typical). The input operating range is specified from 3.6V to 16.0V, making it an ideal choice for four to six primary cell battery-powered applications, 12V mobile applications and one to three cell Li-Ionpowered applications.

Download MCP1755 Datasheet

MCP1755 Applications

Battery-powered Devices, Battery-powered Alarm Circuits, Smoke Detectors, CO2 Detectors, Pagers and Cellular Phones, Smart Battery Packs, Portable Digital Assistant (PDA), Digital Cameras, Microcontroller Power, Consumer Products, Battery-powered Data Loggers

LM10 Datasheet

The LM10 series are monolithic linear ICs consisting of a precision reference, an adjustable reference buffer and an independent, high quality op amp.

The LM10 IC can operate from a total supply voltage as low as 1.1V or as high as 40V, drawing only 270μA. A complementary output stage swings within 15 mV of the supply terminals or will deliver ±20 mA output current with ±0.4V saturation. Reference output can be as low as 200 mV.

download LM10 datasheet

4541 Datasheet

CD4541B programmable timer consists of a 16-stage binary counter, an oscillator that is controlled by external R-C components (2 resistors and a capacitor), an automatic power-on reset circuit, and output control logic. The counter increments on positive-edge clock transitions and can also be reset via the MASTER RESET input.

download CD4541B datasheet

CD4541B pinout

SMD Code Book and Marking Codes

Here you can download the SMD code book that shows SMD marking codes for almost every surface-mount device available on the market. To identify a particular device, first identify the package style and note the ID code printed on the device.

Next look up the code in the alphanumeric listing which forms the main part of the pdf book by looking for the first character in the left column. You can use the CTRL + F shortcut to search for a certain SMD code because it will be hard to look through 3400 codes, with type numbers, characteristics or equivalents and pinout information.
Preview of the SMD Code Book

download the smd codebook

LM567, NE567, SE567 Datasheet

The LM567, NE567 and SE567 are general purpose tone decoders designed to provide a saturated transistor switch to ground when an input signal is present within the passband. The circuit consists of an I and Q detector driven by a voltage controlled oscillator which determines the center frequency of the decoder. External components are used to independently set center frequency, bandwidth and output delay.

567 pin configuration

567 Applications

• Touch Tone Decoding
• Precision Oscillator
• Frequency Monitoring and Control
• Wide Band FSK Demodulation
• Ultrasonic Controls
• Carrier Current Remote Controls
• Communications Paging Decoders

LM567 datasheet

NE567, SE567 datasheet

HT7727A, HT7730A, HT7733A, HT7750A Datasheet

The HT7750A, HT7727A, HT7730A, HT7733A, ICs are a set of PFM step-up DC to DC converters with high efficiency and low ripple. The series feature extremely low start-up voltage and high output voltage accuracy. They require only three external components to provide a fixed output voltage of 2.7V, 3V, 3.3V or 5V.

The HT7727A, HT7730A, HT7733A, HT7750A ICs consist of an oscillator, a PFM control circuit, a driver transistor, a reference voltage unit and a high speed comparator.

HT7727A, HT7730A, HT7733A, HT7750A PDF Datasheet

ADP1649 1A LED Flash Driver

The ADP1649 is a very compact, highly efficient, single white LED flash driver for high resolution camera phones that improves picture and video quality in low light environments. The LED driver maximizes efficiency over the entire battery voltage range to maximize the input power-to-LED power conversion and to minimize battery current draw during flash events.

ADP1649 applications

• camera enabled cellular phones and smart phones
• digital still cameras, camcorders, and PDAs

LED Flash Driver Circuit Schematic

download ADP1649 datasheet

74LS393 Datasheet

Each of these 74LS393 monolithic circuits contains eight masterslave flip-flops and additional gating to implement two individual four-bit counters in a single package. The DM74LS393 comprises two independent four-bit binary counters each having a clear and a clock input. N-bit binary counters can be implemented with each package providing the capability of divide-by-256. The DM74LS393 has parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system-timing signals.

download 74LS393 datasheet

74LS393 pin configuration

74LS393 features

• Dual version of the popular DM74LS93
• DM74LS393 dual 4-bit binary counter with individual clocks
• Direct clear for each 4-bit counter
• Dual 4-bit versions can significantly improve system densities by reducing counter package count by 50%
• Typical maximum count frequency 35 MHz
• Buffered outputs reduce possibility of collector commutation

L298 Datasheet

The L298 datasheet specifies that the IC is an integrated monolithic circuit in a 15-lead Multiwatt and PowerSO20 packages. It is a high voltage, high current dual full-bridge driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepping motors. Two enable inputs are provided to enable or disable the device independently of the input signals. The emitters of the lower transistors of each bridge are connected together and the corresponding external terminal can be used for the connection of an external sensing resistor. An additional supply input is provided so that the logic works at a lower voltage.

download L298 datasheet

L298 Pin Connection

L298 Packages

7404 Datasheet

The 7404 IC contains six independent gates each of which performs the logic INVERT function. The operating voltage is 5V, high-level input voltage is 2V, and low-level input is 0.8V

download Texas Instruments 7404 datasheet

download FairChild 7404 datasheet

7404 packages

7404 inverter circuit with 2 LEDs

ULN2003 Datasheet

The ULN2003 datasheet specifies that it is a high-voltage high-current Darlington transistor array. Each consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers.

download ULN2003 datasheet

ULN2003 package

HC-SR04 Datasheet

HC-SR04 is an ultrasonic ranging module that provides 2 cm to 400 cm non-contact measurement function. The ranging accuracy can reach to 3mm and effectual angle is < 15°. It can be powered from a 5V power supply.

Sources for downloading HC-SR04 pdf datasheet

source 1

source 2

HC-SR04 Specifications

• Working Voltage: DC 5V
• Working Current: 15mA
• Working Frequency: 40Hz
• Max Range: 4m
• Min Range: 2cm
• Measuring Angle: 15 degree
• Trigger Input Signal: 10µS TTL pulse
• Echo Output Signal Input TTL lever signal and the range in proportion
• Dimension 45 * 20 * 15mm

7408 Datasheet

7408 IC is a QUAD 2-Input AND GATES and contains four independent gates each of which performs the logic AND function. Fairchild manufactures this IC in a 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300″ Wide.

download 7408 datasheet

7408 pins and internal diagram

PC817 datasheet

According to PC817 datasheet it contains an IRED optically coupled to a phototransistor. It is packaged in a 4pin DIP, available in wide-lead spacing option and SMT gullwing lead-form option. Input-output isolation voltage(rms) is 5.0kV. Collector-emitter voltage is 80V and CTR is 50% to 600% at input current of 5mA.

download PC817 datasheet

PC817 features

• 4 pin DIP package
• Double transfer mold package (Ideal for Flow Soldering)
• High collector-emitter voltage (VCEO:80V)
• Current transfer ratio (CTR : MIN. 50% at IF=5 mA, VCE=5V)
• Several CTR ranks available
• High isolation voltage between input and output (Viso(rms) : 5.0 kV)
• Lead-free and RoHS directive compliant

PC817 applications

• I/O isolation for MCUs (Micro Controller Units)
• Noise suppression in switching circuits
• Signal transmission between circuits of different potentials and impedances

TL431 Datasheet

The TL431 is a three-terminal adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between VREF (approximately 2.5 volts) and 36 volts with two external resistors These devices have a typical dynamic output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excel lent replacement for zener diodes in many applications.

download TL431 datasheet

TL431 packages

TL431 features

• Programmable Output Voltage to 36 Volts
• Low Dynamic Output Impedance 0.2Ω Typical
• Sink Current Capability of 1.0 to 100mA
• Equivalent Full-Range Temperature Coefficient of 50ppm/°C Typical
• Temperature Compensated For Operation Over Full Rated Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response

ULN2803 datasheet

The ULN2803A datasheet specifies that it is a high-voltage, high-current Darlington transistor array. The device consists of eight npn Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of each Darlington pair is 500 mA. The Darlington pairs may be connected in parallel for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers.

download ULN2803 datasheet

ULN2803 package

Toshiba TCR2ENXX Datasheet

The TCR2EN series are CMOS general-purpose single-output voltage regulators with an on/off control input, featuring low dropout voltage, low quiescent bias current and fast load transient response. These voltage regulators are available in fixed output voltages between 1.0 V and 3.6 V and capable of driving up to 200 mA. They feature overcurrent protection and an Auto-discharge function.

download TCR2EN series datasheet

The XX represent the output voltage, for example:

• TCR2EN12 – 1.2V
• TCR2EN15 – 1.5V
• TCR2EN18 – 1.8V
• TCR2EN25 – 2.5V
• TCR2EN28 – 2.8V
• TCR2EN33 – 3.3V

74LS138 Datasheet

The 74LS138 is a high speed 1-of-8 Decoder/Demultiplexer. This device is ideally suited for high speed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1-of-24 decoder using just three LS138 devices or to a 1-of-32 decoder using four LS138s and one inverter. The LS138 is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all Motorola TTL families.

download 74LS138 datasheet

74LS138 pin configuration

74LS138 features

• Demultiplexing Capability
• Multiple Input Enable for Easy Expansion
• Typical Power Dissipation of 32 mW
• Active Low Mutually Exclusive Outputs
• Input Clamp Diodes Limit High Speed Termination Effects

BC556, BC557 Datasheet

BC556 and BC557 are PNP general purpose transistors for switching and amplification. Both are available in TO-92 and SOT54 plastic package.
NPN complements: BC546 and BC547.

Features

• Low current (max. 100 mA)
• Low voltage (max. 65 V)

download BC557, BC556 datasheet

2N4401 Datasheet

According to the datasheet 2N4401 is a general purpose NPN switching transistor that features high currents (up to 600mA) and low voltages up to 40V. It is used in industrial and consumer switching applications. It is available in TO-92; SOT54 plastic package.
2N4401 PNP complement is 2N4403.

download 2N4401 datasheet

2N4401 pin configuration

556 Datasheet

The 556 datasheet specifies that is dual timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. The 556 is a dual 555. Timing is provided by an external resistor and capacitor for each timing function. The timers operate independently of each other sharing only VCC and ground. The circuits may be triggered and reset on falling waveforms. The output structures may source 200mA.

download 556 datasheet

556 Applications

• Precision timing
• Pulse generation
• Sequential timing
• Time delay generation
• Pulse width modulation
• Pulse position modulation
• Linear ramp generator

7493 Datasheet

The 7490 datasheet specifies that this counter contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and a three-stage binary counter for which the count cycle length is divide-by-eight for the 7493A. All of these counters have a gated zero reset and the 7490A also has gated set-to-nine inputs for use in BCD nine’s complement applications.

download 7493 datasheet

7493 features

• Typical power dissipation: 130mW
• Count frequency: 42 MHz

4538 Datasheet

The 4538 datasheet specifies that this IC is a dual, precision monostable multivibrator with independent trigger and reset controls. The device is retriggerable and resettable, and the control inputs are internally latched. Two trigger inputs are provided to allow either rising or falling edge triggering.

The reset inputs are active LOW and prevent triggering while active. Precise control of output pulse-width has been achieved using linear CMOS techniques. The pulse duration and accuracy are determined by external components RX and CX. The device does not allow the timing capacitor to discharge through the timing pin on power-down condition. For this reason, no external protection resistor is required in series with the timing pin. Input protection from static discharge is provided on all pins.

CD4538 datasheet

MC74HC4538A datasheet

HEF4538B datasheet

IRFZ44 Datasheet

According to the IRFZ44 datasheet this is a third generation Power MOSFET that provide the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. The TO-220AB package is universially preferred for commercial-industrial applications at power dissipation levels to approximately 50 W. The low thermal resistance and low package cost of the TO-220AB contribute to its wide acceptance throughout the industry.

download IRFZ44 datasheet

IRFZ44 pins configuration

IRFZ44 Features

• Dynamic dV/dt Rating
• 175 °C Operating Temperature
• Fast Switching
• Ease of Paralleling
• Simple Drive Requirements
• Compliant to RoHS Directive 2002/95/EC

4511 Datasheet

The 4511 datasheet specifies that this IC is a BCD to 7-segment latch/decoder/driver with four address inputs (DA to DD), an active LOW latch enable input (EL), an active LOW ripple blanking input (BI), an active LOW lamp test input (LT), and seven active HIGH NPN bipolar transistor segment outputs.

HEF4511B datasheet

74HC4511 datasheet

CD4511BC datasheet

4511 pins configuration

4511 Features

• Low logic circuit power dissipation
• High current sourcing outputs (up to 25 mA)
• Latch storage of code
• Blanking input
• Lamp test provision
• Readout blanking on all illegal input combinations
• Lamp intensity modulation capability
• Time share (multiplexing) facility
• Equivalent to Motorola MC14511

74147 Datasheet

74147 datasheet specifiest that this IC is a TTL encoder feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The ’147 and ’LS147 devices encode nine data lines to four-line (8-4-2-1) BCD. The implied decimal zero condition requires no input condition, as zero is encoded when all nine data lines are at a high logic level.

Cascading circuitry (enable input EI and enable output EO) has been provided to allow octal expansion without the need for external circuitry. For all types, data inputs and outputs are active at the low logic level.

download 74147 datasheet

74147 pins configuration

4015 Datasheet

The 4015 datasheet specifies that the IC contains two identical, 4-stage, serial-input/parallel-output registers with independent “Data”, “Clock”, and “Reset” inputs. The logic level present at the input of each stage is transferred to the output of that stage at each positive-going clock transition. A logic high on the “Reset” input resets all four stages covered by that input. All inputs are protected from static discharge by a series resistor and diode clamps to VDD and VSS.

HEF4015B datasheet

CD4015 datasheet

4015 features

• Wide supply voltage range 3.0V to 18V
• High noise immunity 0.45 V_DD (typ.)
• Low power TTL Fan out of 2 driving 74L compatibility or 1 driving 74LS
• Medium speed operation 8 MHz (typ.) clock rate
• Fully static design @V_DD – V_{SS = 10V}

4001 Datasheet

The HEF4001B is a quad 2-input NOR gate. The outputs are fully buffered for the highest noise immunity and pattern insensitivity to output impedance. It operates over a recommended V_DD power supply range of 3 V to 15 V referenced to V_SS (usually ground). Unused inputs must be connected to V_DD, V_SS, or another input.

HEF4001B datasheet

CD4001 datasheet

4001 Features

• Fully static operation
• 5 V, 10 V, and 15 V parametric ratings
• Standardized symmetrical output characteristics
• Complies with JEDEC standard JESD 13-B
• Inputs and outputs are protected against electrostatic effects

74HC595 Datasheet

The 74HC595 datasheet specifies that this IC is a 8-stage serial shift registers with a storage register and 3-state outputs. The registers have separate clocks. contain an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register.

Data is shifted on the positive-going transitions of the shift register clock input (SHCP). The data in each register is transferred to the storage register on a positive-going transition of the storage register clock input (STCP). If both clocks are connected together, the shift register will always be one clock pulse ahead of the storage register.

74HC595/74HCT595 datasheet

SN74HC595/SN54HC595 datasheet

74HC595 features

• 8-bit serial input
• 8-bit serial or parallel output
• Storage register with 3-state outputs
• Shift register with direct clear
• 100 MHz (typical) shift out frequency

Maxim MAX9910 Datasheet

The MAX9910 datasheet specifies that this amplifier is unity-gain stable for loads up to 30pF. However, the capacitive load can be increased to 250pF when the amplifier is configured for a minimum gain of 10V/V. Applications that require greater capacitive-drive capability should use an isolation resistor between the output and the capacitive load. Also, in unity-gain applications with relatively small RL (approximately 5kΩ), the capacitive load can be increased up to 200pF.

MAX9910 datasheet

4049 Datasheet

The HEF4049B provides six inverting buffers with high current output capability suitable for driving TTL or high capacitive loads. Since input voltages in excess of the buffers’ supply voltage are permitted, the buffers may also be used to convert logic levels of up to 15 V to standard TTL levels.

HEF4049B datasheet

CD4049 datasheet

4049 features and benefits

• Accepts input voltages in excess of the supply voltage
• Fully static operation
• 5 V, 10 V, and 15 V parametric ratings
• Standardized symmetrical output characteristics
• Specified from -40°C to +85°C
• Complies with JEDEC standard JESD 13-B

4049 applications

• LOCMOS (Local Oxidation CMOS) to DTL/TTL converter
• HIGH sink current for driving two TTL loads
• HIGH-to-LOW level logic conversion

LM5008 Datasheet

The LM5008 step-down switching regulator features all of the functions needed to implement a low cost, efficient, Buck bias regulator. This high voltage regulator contains an 100V N-Channel Buck Switch. The device is easy to implement and is provided in the VSSOP-8 and the thermally enhanced WSON-8 packages. The regulator is based on a hysteretic control scheme using an ON time inversely proportional to Vin. This features allows the operating frequency to remain relatively constant.

download LM5008 datasheet

LM5008 applications

• non-isolated telecommunication buck regulator
• secondary high voltage post regulator
• +42V automative systems

LM2596 Datasheet

The LM2596 regulator is monolithic integrated circuit ideally suited for easy and convenient design of a step−down switching regulator (buck converter). It is capable of driving a 3.0 A load with excellent line and load regulation. The LM2596 operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators.

download LM2596 datasheet by Texas Instruments

download LM2596 datasheet by OnSemi

LM2596 Features

• Adjustable Output Voltage Range 1.23 V − 37 V
• Guaranteed 3.0 A Output Load Current
• Wide Input Voltage Range up to 40 V
• 150 kHz Fixed Frequency Internal Oscillator
• TTL Shutdown Capability
• Low Power Standby Mode, typ 80 A
• Thermal Shutdown and Current Limit Protection
• Internal Loop Compensation