器件名称:
74HCT75
功能描述:
Quad bistable transparent latch
文件大小:
57.41KB 共7页
简 介:
INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications The IC06 74HC/HCT/HCU/HCMOS Logic Package Information The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT75 Quad bistable transparent latch Product specication File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specication Quad bistable transparent latch FEATURES Complementary Q and Q outputs VCC and GND on the centre pins Output capability: standard ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT75 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. 74HC/HCT75 The 74HC/HCT75 have four bistable latches. The two latches are simultaneously controlled by one of two active HIGH enable inputs (LE1-2 and LE3-4). When LEn-n is HIGH, the data enters the latches and appears at the nQ outputs. The nQ outputs follow the data inputs (nD) as long as LEn-n is HIGH (transparent). The data on the nD inputs one set-up time prior to the HIGH-to-LOW transition of the LEn-n will be stored in the latches. The latched outputs remain stable as long as the LEn-n is LOW. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns TYPICAL SYMBOL tPHL/ tPLH PARAMETER propagation delay nD to nQ, nQ LEn-n to nQ, nQ CI CPD Notes 1. CPD is used to determine the dynamic power dissipation (PD in W): PD = CPD × VCC2……
