74HC393 Dual 4-Bit Binary Ripple Counter
Dual 4-bit binary ripple counter with individual clock (~CP) and master reset (MR) inputs for each 4-bit stage (can be cascaded for 8-bit counting).
Aliase:SN74HC393N, 74393, 74HCT393, Dual Ripple Counter
DIP-14 / SOIC-14 Top View
14 Pins
Pin-Tabelle14
| Pin | Signal / Name | Typ | Alternative Funktionen |
|---|---|---|---|
| 1 | 1~CP | Digital | Counter 1 Clock Input (High-to-Low Negative-edge triggered) |
| 2 | 1MR | Digital | Counter 1 Master Reset (Active High - Asynchronous) |
| 3 | 1Q0 | Digital | Counter 1 Output Bit 0 (Divide by 2) |
| 4 | 1Q1 | Digital | Counter 1 Output Bit 1 (Divide by 4) |
| 5 | 1Q2 | Digital | Counter 1 Output Bit 2 (Divide by 8) |
| 6 | 1Q3 | Digital | Counter 1 Output Bit 3 (Divide by 16) |
| 7 | GND | Ground | Ground Reference (0V) |
| 8 | 2Q3 | Digital | Counter 2 Output Bit 3 (Divide by 16) |
| 9 | 2Q2 | Digital | Counter 2 Output Bit 2 (Divide by 8) |
| 10 | 2Q1 | Digital | Counter 2 Output Bit 1 (Divide by 4) |
| 11 | 2Q0 | Digital | Counter 2 Output Bit 0 (Divide by 2) |
| 12 | 2MR | Digital | Counter 2 Master Reset (Active High - Asynchronous) |
| 13 | 2~CP | Digital | Counter 2 Clock Input (High-to-Low Negative-edge triggered) |
| 14 | VCC | Power | Supply Voltage (2.0V to 6.0V DC) |