ICL3287 RS-232 transmitter/receiver SOIC24 Components Microchip 93LC66A EEPROM SO8 Components 74HC595 Serial In/Out Shift Register Paralelle Out (TSSOP16) Components 74HC541 octal buffer/line driver TSSOP20 Components 74HC08 Quad AND gate (SOIC14) Components ICL3232 low-power RS-232 transmitter/receiver (TSSOP16 or SOIC16)  Components ICL3232 low-power RS-232 transmitter/receiver (TSSOP16 or SOIC16)  Components Triple 2-channel analog multiplexer/demultiplexer (pack of 2) Components 6N135 High Speed Optocoupler (DIP8) Components Nuvoton WS51F89 8051 Based Microcontroller TSSOP20 Components MC1405 A2D Converter (DIP 16) Components PC817 Optocoupler (DIP4) Components  LM2902 quad Op-Amp (SOIC) IC's 74HC166 8-Bit Parallel-Load Shift Register (SOIC14) Components CD4051 8-Channel Analog Multiplexer/Demultiplexer (SOIC 14) Components 4N35 Optocoupler IC (DIP6) Components CP2102 USB-to-UART Bridge Controller Components The CH423 is a universal I/O expansion chip with a two-wire serial interface. The CH423 provides 8 two-way input/output pins and 16 passes With the output pin, support input level change interrupt; CH423 built-in current drive circuit, can statically drive 24 LEDs or dynamic drive 128 leds. The CH423 exchanges data through a 2-wire serial interface. Components CH9350L USB control chip. This chip is the opposate as the Serial to USB interface.  Components CH552 from WCH. 8051 compatable Core with 16KB Flash 1K RAM and 256B EEPROM. Arduino Enviroment Plugin Available. Components CH432T SOIC20 Dual UART SPI IC from WCH (16CX5X compatable) Components WSON-8 DRV8837DSGR Motor Driver IC Chip Components 8-Channel I/O Expander I2C 16-Pin SOIC, PCF8574T Components MAX690 Microprocessor Supervisory IC Components CD74HC688E High Speed CMOS 8-Bit Logic Comparator Components HD74HC02P Quad 2-input NOR Gate Components CD4017BC is a 5-stage divide-by-10 Johnson counter with 10 decoded outputs and a carry out bit. Components LM 393 IC IC's LM386 audio amplifier IC IC's 1NE5532 IC. Components 741 op amp IC Components LM324 quad operational amplifier Components ULN2003APG DIP-16 7 Darlington Open collector Array Components ULN2803 Octal High Voltage High Current Darlington Transistor Array Components Through Hole LM358 Dual op-amp Pack of 2 IC's Amplifiers and Audio 3 V/5 V, 2 MSPS, 8-Bit, 8-Channel ADC. Note: Package type is SOIC28 (W) Components Octal D-type transparent latch; 3-state. NOTE: Package type is TSSOP20 Components Low Power Dual Operational Amplifiers Components MAX472 Precision, High-Side Current-Sense Amplifier Components Ultra-Low-Power, Single-Supply Op Amp + Comparator + Reference Amplifiers and Audio Ultra-low-power 32-bit MCU ARM-based Cortex-M3,  64KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC Components TC4421 MOSFET Driver Components SMD Lm358 Dual op-amp Pack of 2 IC's Amplifiers and Audio MP2307DN Monolithic Synchronous Buck Regulator Components