Divide-by-12 counter (SN74LS92) 7492
Datasheet
The datasheet for Divide-by-12 counter (SN74LS92) 7492 provides complete technical information including pin diagram, electrical characteristics and typical applications.
Category: Counters | Type: mod-12 Counter | Configuration: 4 binary outputs, 2 clock inputs
The SN74LS92 is a "Divide-By-12" counter (4 bits). Similar to the 74LS90, but counting resets at 12. It also has internal flip-flops and ports for cascading with other counters. Widely used in frequency dividers and modular counters.
Applications
- Frequency dividers
- Modular counters
- Timing systems
- Pattern generators
- Hour counters (12h clock)
These applications show the versatility of the component in different areas of electronics.
Truth Table
The truth table for the sn74ls92 divide-by-12 counter shows all possible input combinations and their corresponding output.
| Count | QD | QC | QB | QA |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 |
| 1 | 0 | 0 | 0 | 1 |
| 2 | 0 | 0 | 1 | 0 |
| 3 | 0 | 0 | 1 | 1 |
| 4 | 0 | 1 | 0 | 0 |
| 5 | 0 | 1 | 0 | 1 |
| 6 | 0 | 1 | 1 | 0 |
| 7 | 0 | 1 | 1 | 1 |
| 8 | 1 | 0 | 0 | 0 |
| 9 | 1 | 0 | 0 | 1 |
| 10 | 1 | 0 | 1 | 0 |
| 11 | 1 | 0 | 1 | 1 |
Technical Specifications
General Information
mod-12 Counter
4 binary outputs, 2 clock inputs
SN74LS92
Electrical Characteristics
4.75V - 5.25V
0.8mA per input
35MHz max
0掳C to +70掳C
DIP-14
2.54mm
16ns typical
Additional Information
The sn74ls92 divide-by-12 counter is a fundamental component in the counters category. Its design and characteristics make it ideal for a wide range of applications in digital electronics.
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