器件名称:
74HC393D
功能描述:
Dual 4-bit binary ripple counter
文件大小:
46.96KB 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/HCT393 Dual 4-bit binary ripple counter Product specication File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specication Dual 4-bit binary ripple counter FEATURES Two 4-bit binary counters with individual clocks Divide-by any binary module up to 28 in one package Two master resets to clear each 4-bit counter individually Output capability: standard ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT393 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/HCT393 The 74HC/HCT393 are 4-bit binary ripple counters with separate clocks (1CP and 2 CP) and master reset (1MR and 2MR) inputs to each counter. The operation of each half of the “393” is the same as the “93” except no external clock connections are required. The counters are triggered by a HIGH-to-LOW transition of the clock inputs. The counter outputs are internally connected to provide clock inputs to succeeding stages. The outputs of the ripple counter do not change synchronously and should not be used for high-speed address decoding. The master resets are active-HIGH asynchronous inputs to each 4-bit counter identified by th……
