Datasheet Details
| Part number | 74LS399 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 78.79 KB |
| Description | QUAD 2-PORT REGISTER |
| Download | 74LS399 Download (PDF) |
|
|
Download the 74LS399 datasheet PDF. This datasheet also includes the 74LS398 variant, as both parts are published together in a single manufacturer document.
| Part number | 74LS399 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 78.79 KB |
| Description | QUAD 2-PORT REGISTER |
| Download | 74LS399 Download (PDF) |
|
|
|
QUAD 2-PORT REGISTER The SN54 / 74LS398 and SN54 / 74LS399 are Quad 2-Port Registers.
They are the logical equivalent of a quad 2-input multiplexer followed by a quad 4-bit edge-triggered register.
A Common Select input selects between two 4-bit input ports (data sources).
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
74LS399 | QUADRUPLE 2-INPUT MULTIPLEXER | Texas Instruments |
| Part Number | Description |
|---|---|
| 74LS393 | DUAL DECADE COUNTER |
| 74LS395 | 4-BIT SHIFT REGISTER |
| 74LS398 | QUAD 2-PORT REGISTER |
| 74LS322 | 8-BIT SHIFT REGISTERS |
| 74LS33 | QUAD 2-INPUT NOR BUFFER |
| 74LS348 | 8-INPUT PRIORITY ENCODERS |
| 74LS367 | 3-STATE HEX BUFFERS |
| 74LS373 | OCTAL TRANSPARENT LATCH |
| 74LS374 | OCTAL TRANSPARENT LATCH |
| 74LS375 | 4-BIT D LATCH |