74AHC574
Overview
- 3-state non-inverting outputs for bus oriented applications
- 8-bit positive, edge-triggered register
- ESD protection: HBM EIA/JESD22-A114-A exceeds 2000 V MM EIA/JESD22-A115-A exceeds 200 V
- Independent register and 3-state buffer operation
- Common 3-state output enable input
- Output capability; bus driver
- ICC category: MSI
- For AHC only: operates with CMOS input levels
- For AHCT only: operates with TTL input levels
- Specified from -40 to +85 and +125 °C. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf ≤ 3.0 ns. DESCRIPTION 74AHC574; 74AHCT574 The 74AHC/AHCT574 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74AHC/AHCT574 are octal D-type flip-flops featuring separate D-type inputs for each flip-flop and 3-state outputs for bus oriented applications. A clock (CP) and an output enable (OE) input are common to all flip-flops. The 8 flip-flops will store the state of their individual D-inputs that meet the set-up and hold times requirements on the LOW-to-HIGH CP transition. When OE is LOW the contents of the 8 flip-flops are available at the outputs. When OE is HIGH, the outputs go to the high-impedance OFF-state. Operation of the OE input does not affect the state of the flip-flops. The ‘574’ is functionally identical to the ‘564’, but has non-inverting outputs. The ‘574’ is functionally identical to the ‘374’, but has a different pinning.
