器件名称: 74HC42D
功能描述: BCD to decimal decoder 1-of-10
文件大小: 41.9KB 共6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/HCT42 BCD to decimal decoder (1-of-10)
Product specication File under Integrated Circuits, IC06 December 1990
Philips Semiconductors
Product specication
BCD to decimal decoder (1-of-10)
FEATURES Mutually exclusive outputs 1-of-8 demultiplexing capability Outputs disabled for input codes above nine Output capability: standard ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT42 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. QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
74HC/HCT42
The 74HC/HCT42 decoders accept four active HIGH BCD inputs and provide 10 mutually exclusive active LOW outputs. The active LOW outputs facilitate addressing other MSI circuits with active LOW input enables. The logic design of the “42” ensures that all outputs are HIGH when binary codes greater than nine are applied to the inputs. The most significant input (A3) produces an useful inhibit function when the “42” is used as a 1-of-8 decoder. The A3 input can also be used as the data input in an 8-output demultiplexer application.
TYPICAL SYMBOL tPHL/ tPLH CI CPD Notes 1. CPD is used to determine the dynamic power dissipati……
