Datasheet Details
| Part number | 74191 |
|---|---|
| Manufacturer | Fairchild (now onsemi) |
| File Size | 72.74 KB |
| Description | Synchronous 4-Bit Up/Down Counter |
| Datasheet | 74191_FairchildSemiconductor.pdf |
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Overview: DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode Control August 1986 Revised February 1999 DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode.
| Part number | 74191 |
|---|---|
| Manufacturer | Fairchild (now onsemi) |
| File Size | 72.74 KB |
| Description | Synchronous 4-Bit Up/Down Counter |
| Datasheet | 74191_FairchildSemiconductor.pdf |
|
|
|
The DM74LS191 circuit is a synchronous, reversible, up/ down counter.
Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs change simultaneously when so instructed by the steering logic.
This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters.
Compare 74191 distributor prices and check real-time stock availability from major suppliers. Prices and inventory may vary by region and order quantity.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
74191 | Synchronous Up/Down 4-Bit Binary Counter | National Semiconductor |
 |
74191 | 4 BIT SYNCHRONOUS UP/DOWN COUNTERS | SGS-THOMSON |
 |
74191 | Synchronous Up/Down Counters | Texas Instruments |
| Part Number | Description |
|---|---|
| 74193 | Synchronous 4-Bit Binary Counter |
| 7411 | Triple 3 Input AND Gate |
| 7412 | Triple 3-Input NAND Gate |
| 74121 | Monostable multivibrator |
| 74123 | Dual retriggerable monostable multivibrator |
| 74125 | Quad 3-STATE Buffer |
| 74126 | Quad 3-STATE Buffer |
| 7412DC | Triple 3-Input NAND Gate |
| 7412FC | Triple 3-Input NAND Gate |
| 7412PC | Triple 3-Input NAND Gate |