器件名称:
74HCT4059N3
功能描述:
Programmable divide-by-n counter
文件大小:
147.89KB 共20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/HCT4059 Programmable divide-by-n counter Product specication Supersedes data of September 1993 File under Integrated Circuits, IC06 1998 Jul 08 Philips Semiconductors Product specication Programmable divide-by-n counter FEATURES Synchronous programmable divide-by-n counter Presettable down counter Fully static operation Mode select control of initial decade counting function (divide-by-10, 8, 5, 4 and 2) Master preset initialization Latchable output Easily cascadable with other counters Four operating modes: timer divider-by-n divide-by-10 000 master preset Output capability: standard ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT4059 are high-speed Si-gate CMOS devices and are pin compatible with the “4059” of the “4000B” series. They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT4059 are divide-by-n counters which can be programmed to divide an input frequency by any number (n) from 3 to 15 999. There are four operating modes, timer, divide-by-n, divide-by-10 000 and master preset, which are defined by the mode select inputs (Ka to Kc) and the latch enable input (LE) as shown in the Function table. The complete counter consists of a first counting stage, an intermediate counting stage and……
