Texas Instruments SN74ALS191AD Counters and Dividers
4-Bit Synchronous Up/Down Binary Counter, featuring bidirectional counting and positive edge clock triggering.
Same model may have multiple batches, images only for reference.
Technical Specifications
Texas Instruments SN74ALS191AD Counters and Dividers technical specifications.
General
Alternate Parts Comparison (SN74ALS191AD vs SN74ALS03BDR vs SN74ALS133DR vs SN74ALS00ADR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Supply Voltage | 5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Package / Case | -- | 14-SOIC | 16-SOIC | 14-SOIC |
| Current Output High Low | -- | -, 8mA | 400µA, 8mA | 400µA, 8mA |
| Logic Level High | -- | 2V | 2V | 2V |
| Logic Level Low | -- | 0.8V | 0.8V | 0.8V |
| Logic Type | -- | NAND Gate | NAND Gate | NAND Gate |
| Max Propagation Delay V Max Cl | -- | 50ns @ 5V, 50pF | 25ns @ 5V, 50pF | 11ns @ 5V, 50pF |
| Number of Circuits | -- | 4 | 1 | 4 |
| Number of Inputs | -- | 2 | 13 | 2 |
| Action |
Texas Instruments SN74ALS191AD Counters and Dividers Overview
4-Bit Synchronous Up/Down Binary Counter, featuring bidirectional counting and positive edge clock triggering. This logic IC operates with a 5V supply voltage, ranging from 4.5V to 5.5V, and supports frequencies up to 30MHz. It offers a propagation delay of 37ns and is housed in a 16-SOIC surface mount package.
Designed with BIPOLAR technology, this RoHS compliant component operates within a temperature range of 0°C to 70°C.