| Image | Part Number | Description |
|---|---|---|
 |
CD74HCT221Rochester Electronics |
HIGH-SPEED LOGIC, DUAL MONOSTABL |
 |
CD74HC221EE4Rochester Electronics |
MONOSTABLE MULTIVIBRATOR, HC/UH |
 |
SN74LS221NE4Rochester Electronics |
SN74LS221 DUAL MONOSTABLE MULTIV |
|
CD54HC4538FRochester Electronics |
CD54HC4538 HIGH SPEED CMOS LOGIC |
 |
JM38510/31402B2ARochester Electronics |
54LS221 DUAL MONOSTABLE MULTIVIB |
|
11C90DMRochester Electronics |
11C90 - PRESCALER, ECL SERIES |
