Important notice Dear Customer, On 7 February 2017 the former NXP Standard Product business became a new company with the tradename Nexperia. Nexperia is an industry leading supplier of Discrete, Logic and PowerMOS semiconductors with its focus on the automotive, industrial, computing, consumer and wearable application markets In data sheets and application notes which still contain NXP or Philips Semiconductors references, use the references to Nexperia, as shown below. Instead of 74AHC574 74AHCT574 Octal D-type ip-op positive edge-trigger 3-state Rev. 02 24 January 2008 Product data sheet 1. General description The 74AHC574 74AHCT574 are high-speed Si-gate CMOS devices and are pin compatible with Low Power Schottky TTL (LSTTL). They are specied in compliance with JEDEC standard no. 7A. The 74AHC574 74AHCT574 are octal D-type ip-ops featuring separate D-type inputs for each ip-op and 3-state outputs for bus oriented applications. A clock (CP) and an output enable (OE) input are common to all ip-ops. The 8 ip-ops 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 ip-ops 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 ip-ops. The 74AHC574 74AHCT574 is functionally identical to the 74AHC564 74AHCT564, but has non-inverting outputs. The 74AHC574 74AHCT574 is functionally identical to the 74AHC374 74AHCT374, but has a different pinning. 2. Features n Balanced propagation delays n All inputs have a Schmitt-trigger action n 3-state non-inverting outputs for bus orientated applications n 8-bit positive, edge-triggered register n Independent register and 3-state buffer operation n Common 3-state output enable input n For 74AHC574 only: operates with CMOS input levels n For 74AHCT574 only: operates with TTL input levels n ESD protection: u HBM JESD22-A114E exceeds 2000 V u MM JESD22-A115-A exceeds 200 V u CDM JESD22-C101C exceeds 1000 V n Multiple package options n Specied from - 40 C to +85 C and from - 40 C to +125 C