IN74HC221A is Dual Monostable Binary Up/Down Counter manufactured by IK Semiconductor.
| Part Number | Description |
|---|---|
| IN74HC20A | Dual 4-Input NAND Gate |
| IN74HC21A | Dual 4-Input Positive-AND Gate |
| IN74HC240A | Octal Buffer/Line Driver |
| IN74HC241A | Octal Buffer/Line Driver |
| IN74HC244A | Octal Buffer/Line Driver |
TECHNICAL DATA IN74HC221A Dual Monostable Multivibrator The IN74HC221A is identical in pinout to the LS/ALS221. The device inputs are patible with standard CMOS outputs; with pullup resistors, they are patible with LS/ALSTTL outputs.
