Pinouts

PIN IDENTIFICATION

PIN IDENTIFICATION

PIN IDENTIFICATION

CMOS ICs: 4000...4049

TTL ICs: 7400...7449

A-D and D-A converters

CMOS ICs: 40100...40999

TTL ICs: 74100...74149

CMOS ICs: 4050...4099

TTL ICs: 741000...743999

Central Processing Units and Microcontrollers

ICs: 4300...4599

TTL ICs: 74150...74199

Drivers and level shifters


MAX232, MAX232A

5V RS232 transceiver.

To operate, connect two capacitors to the C1 and C2 pins, one between the V- and GND, and one between V+ and GND. For the MAX232, capacitors should be 10uF, for the MAX232A 100nF is enough.

TTL ICs: 74200...74299