| Part | 74F399 |
|---|---|
| Description | Quad 2-Port Register |
| Manufacturer | National Semiconductor |
| Size | Direct Link |
The ’F398 and ’F399 are the logical equivalents of a quad 2-input multiplexer feeding into four edge-triggered flipflops A common Select input determines which of the two 4-bit words is accepted The selected data enters the flipflops on the rising edge of the clock The ’F399 is the 16-pin version of the ’F398 with only the Q outputs of the flip-flops available.
| Part Number | Manufacturer | Description |
|---|---|---|
| 74F399 | Philips Semiconductors | Registers |
| 74F398 | Philips Semiconductors | Registers |
| 74F393 | Philips Semiconductors | Dual 4-bit binary ripple counter |
| 74F398 | National Semiconductor | Quad 2-Port Register |
| 74F395 | Philips Semiconductors | 4-bit cascadable shift register |
