TC74HC40105AF Overview
(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.
TC74HC40105AF Key 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
- Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
- Balanced propagation delays: tpLH ∼- tpHL
- Wide operating voltage range: VCC (opr) = 2 to 6 V