| Part Number | TC74HC40105AF |
| Manufacturer | Toshiba |
| Title | 4-Bit x 16 Word FIFO Register |
| Description | (1) Writing data Data can be written into the FIFO whenever DIR is high and a low to high transition occurs on the SI pin. DIR will toggle momenta... |
| Features |
• High speed: fmax 25 MHz (typ.) at VCC = 5 V • Low power dissipation: ICC = 4 μA (max) at Ta = 25°C • High noise immunity: VNIH = VNIL = 28% VCC (min) • Output drive capability: 10 LSTTL loads for DIR, DOR 15 LSTTL loads for Q0 to Q3 • Symmetrical output impedance: |IOH| = IOL = 4 mA (min) for DIR,... |
| File Size | 322.08KB |
| Datasheet |
|
TC74HC40105AP : (1) Writing data Data can be written into the FIFO whenever DIR is high and a low to high transition occurs on the SI pin. DIR will toggle momentarily until the data has been transferred to the second word register. SI must be toggled before the next 4-bit word can be written. The first and subsequent words will automatically ripple to the output end of the device even if there is not a full 16 words of input data. When all 16 words are filled with data, DIR will go low and additional data cannot be written into the device. (2) Reading data When a data word appears in the sixteenth data register (just before the output buffer), DOR goes high and, if OE is low, data can be output on the high .