Datasheet Details
| Part number | M54HC643 |
|---|---|
| Manufacturer | STMicroelectronics |
| File Size | 266.79 KB |
| Description | OCTAL BUS TRANSCEIVER |
| Datasheet | M54HC643_STMicroelectronics.pdf |
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Overview: M54/74HC245/640/643 M54/74HC245/640/643 OCTAL BUS TRANSCEIVER (3-STATE): HC245 NON INVERTING HC640 INVERTING, HC643 INVERTING/NON INVERTING . . . . . . . . HIGH SPEED tPD = 10 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION o ICC = 4 µA (MAX.) at TA = 25 C HIGH NOISE IMMUNITY VNIH = VINL = 28 % VCC (MIN.
| Part number | M54HC643 |
|---|---|
| Manufacturer | STMicroelectronics |
| File Size | 266.79 KB |
| Description | OCTAL BUS TRANSCEIVER |
| Datasheet | M54HC643_STMicroelectronics.pdf |
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The M54/74HC245, HC640 and HC643 utilise silicon gate C2MOS technology to achive operating speeds equivalent to LSTTL devices.
Along with the low power dissipation and high noise 2 immunity of standards C MOS integrated circuit, it possesses the capability to drive 15 LSTTL loads.
These IC’s are intended for two-way asynchronous munication between data buses, and the direction of data trasmission is determined by DIR input.
| Part Number | Description |
|---|---|
| M54HC640 | OCTAL BUS TRANSCEIVER |
| M54HC620 | OCTAL BUS TRANSCEIVER |
| M54HC623 | OCTAL BUS TRANSCEIVER |
| M54HC670 | 4 WORD x 4 BIT REGISTER FILE |
| M54HC690 | COUNTER/REGISTER |
| M54HC691 | COUNTER/REGISTER |
| M54HC692 | COUNTER/REGISTER |
| M54HC693 | COUNTER/REGISTER |
| M54HC696 | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |
| M54HC697 | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |