Datasheet Details
| Part number | DM7490A |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 90.33 KB |
| Description | Decade and Binary Counters |
| Datasheet |
 DM7490A Datasheet
|
|
|
| Part number | DM7490A |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 90.33 KB |
| Description | Decade and Binary Counters |
| Datasheet |
DM7490A Datasheet
|
|
|
|
Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the 90A and divideby-eight for the 93A All of these counters have a gated zero reset and the 90A also has gated set-to-nine inputs for use in BCD nine’s complement applications To use their maximum count length (decade or four-bit binary) the B input is connected to the QA output The input count pulses are applied to input A and the outputs are as described in the appropriate truth table A symmetrical divide-by-ten count can be obtained from the 90A counters by connecting the QD output to the A input and applying the input count to the B input which gives a divide-by-ten square wave at output QA
DM5490 DM7490A DM7493A Decade and Binary Counters July 1992 DM5490 DM7490A DM7493A Decade and Binary Counters.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
DM7490A | Decade and Binary Counters | Fairchild Semiconductor |
| Part Number | Description |
|---|---|
| DM7493A | Decade and Binary Counters |
| DM7497 | Synchronous Modulo-64 Bit Rate Multiplier |
| DM7400 | Quad 2-Input NAND Gates |
| DM7401 | Quad 2-Input NAND Gates with Open-Collector Outputs |
| DM7402 | Quad 2-Input NOR Gates |
| DM7404 | Hex Inverting Gates |
| DM7405 | (DM5405 / DM7405) Hex Inverters |
| DM7406 | Hex Inverting Buffers |
| DM7407 | Hex Buffers |
| DM7408 | Quad 2-Input AND Gates |