Frequently used chips

• 74HC595 - Shift register, serial-in parallel-out. DIP.
• 7490 - Decade counter. DIP.
• CD4066B - Analog quad switch. DIP.
• LM35 - Analog temperature sensor, 10mV/°C.
• KTY81-220 - Analog temperature sensor, PTC resistor output, 2kOhm nominal.
• DS1307 - Real Time Clock.
• TSOP34838 - Infrared data receiver, 38kHz.
• XR2206 - Signal generator with analog (potentiometer) interface. DIP.
• AD9833 - Signal generator with SPI interface. SMD.
• MCP3201 - 12-bit ADC with SPI interface. DIP.
• MCP4921 - 12-bit DAC with SPI interface. DIP.
• MCP2210 - USB-to-SPI bridge (contains USB device role and SPI master role). SMD.

Drivers, comparators and amplifiers

• L293D - Dual H-bridge driver, DIP.
• L298 - Dual H-bridge driver.
• LM386 - Audio amplifier. DIP.
• LM324 - Quad Operational Amplifier. DIP.
• MCP6002 - Dual Operational Amplifier. DIP.
• LM339 - Quad Voltage Comparators. DIP.
• PGA103 - Programmable Gain Amplifier.

Transistors

• BC546 - NPN, 100mA collector current. TO-92.
• BC556 - PNP, 100mA collector current. TO-92.
• TIP31G - NPN, 3 Amp collector current. TO-220.
• TIP32G - PNP, 3 Amp collector current. TO-220.
• TIP47G - NPN, 1 Amp collector current. TO-220.
• TIP122 - NPN, 5 Amp, Darlington transistor. TO-220.
• TIP127 - PNP, 5 Amp, Darlington transistor. TO-220.
• MMBTA14 - NPN, 300mA, Darlington transistor. SOT23.
• MMBTA63 - PNP, 500mA, Darlington transistor. SOT23.
• ULN2003A - Array of 7 NPN Darlington transistors. DIP.
• IRFU014 - N-channel MOSFET, 8.4 Amp continuous drain current, Vgs = 4V

Voltage regulators, voltage references

• 7805 - 5V linear regulator.
• 7812 - 12V linear regulator.
• AMS1117-3.3 - 3.3V low-dropout linear regulator.
• LM317 - Adjustable voltage regulator.
• LT3081 - Adjustable voltage regulator with adjustable current limiting.
• TL431 - Adjustable voltage reference.
• MCP1541 - Fixed 4.096 voltage reference. TO-92.
• MAX6241 - Fixed 4.096 voltage reference. DIP.