The 74HC393; 74HCT393 is a dual 4-stage binary ripple counter. Each counter features a clock input (nCP), an overriding asynchronous master reset input (nMR) and 4 buffered parallel outputs (nQ0 to nQ3). The counter advances on the HIGH-to-LOW transition of nCP. A HIGH on nMR clears the counter stages and forces the outputs LOW, independent of the state of n.
• Wide supply voltage range from 2.0 V to 6.0 V
• CMOS low power dissipation
• High noise immunity
• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
• Complies with JEDEC standards:
• JESD8C (2.7 V to 3.6 V)
• JESD7A (2.0 V to 6.0 V)
• Input levels:
• For 74HC393: CMOS level
• For 74HCT393: TTL level
• ESD protection:
• HBM JESD22-A114F exceeds 2000 V
• MM JESD22-A115-A exceeds 200 V.
• Two 4-bit binary counters with individual clocks
• Divide by any binary module up to 28 in one package
• Two master resets to clear each 4-bit counter individually
3. Ordering information
Tab.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | 74HCT393 |
Texas Instruments |
Dual 4-Stage Binary Counter | |
2 | 74HCT393 |
nexperia |
Dual 4-bit binary ripple counter | |
3 | 74HCT393-Q100 |
nexperia |
Dual 4-bit binary ripple counter | |
4 | 74HCT393D |
nexperia |
Dual 4-bit binary ripple counter | |
5 | 74HCT393PW |
nexperia |
Dual 4-bit binary ripple counter | |
6 | 74HCT390 |
Philips |
Dual decade ripple counter | |
7 | 74HCT390 |
nexperia |
Dual decade ripple counter | |
8 | 74HCT390 |
Texas Instruments |
Dual Decade Ripple Counter | |
9 | 74HCT390D |
nexperia |
Dual decade ripple counter | |
10 | 74HCT30 |
Texas Instruments |
8-Input NAND Gate | |
11 | 74HCT30 |
NXP |
8-Input NAND Gate | |
12 | 74HCT30 |
nexperia |
8-input NAND gate |