SN74AC534N is an eight-bit edge-triggered D-type flip-flop produced by Texas Instruments. The device has 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The SN74AC534 is an octal edge‑triggered D‑type flip‑flop featuring 3‑state outputs designed for driving highly capacitive or low‑impedance loads. It is suitable for buffer registers, I/O ports, bidirectional bus drivers and working registers. The device includes a buffered output‑enable (OE) input that can place the outputs in a normal logic state or a high‑impedance state, allowing data retention or new data entry while the bus is disconnected.
The datasheet provides detailed electrical characteristics, recommended operating conditions, timing and switching parameters, as well as comprehensive packaging, mechanical and tape‑and‑reel information for all available device variants. Ordering information and eco‑plan status for each package type are also listed.
| Supply voltage range (VCC) | -0.5 V to 7 V |
|---|---|
| Input voltage range (VI) | -0.5 V to VCC + 0.5 V |
| Output voltage range (VO) | -0.5 V to VCC + 0.5 V |
| Continuous output current (IO) | ±50 mA |
| Package thermal impedance (DB) | 70 °C/W |
| Package thermal impedance (DW) | 58 °C/W |
| Storage temperature range | -65 °C to 150 °C |
| Maximum clock frequency (VCC = 5 V) | 140 MHz |
The device operates with a supply voltage (VCC) from –0.5 V up to 7 V.
The continuous output current is specified as ±50 mA.
A pull‑up resistor of minimum value determined by the driver’s current‑sinking capability should be used on OE during power‑up.