MC74HC147

www.DataSheet4U.com MOTOROLA SEMICONDUCTOR TECHNICAL DATA Decimal-to-BCD Encoder High–Performance Silicon–Gate CMOS The MC74HC147 is identical in pinout to the LS147. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device encodes nine active–low data inputs to four active–low BCD Address Outputs, ensuring that only the highest order active data line is encoded. The implied decimal zero condition is encoded when all nine data inputs are at a high level (inactive). Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2 to 6 V Low Input Current: 1 µA High Noise Immunity Characteristic of CMOS Devices In Compliance with the Requirements Defined by JEDEC Standard No. 7A Chip Complexity: 136 FETs or 34 Equivalent Gates 16 MC74HC147 N SUFFIX PLASTIC PACKAGE CASE 648–08 1 16 1 D SUFFIX SOIC PACKAGE CASE 751B–05 ORDERING INFORMATION MC74HCXXXN MC74HCXXXD Plastic SOIC PIN ASSIGNMENT D4 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC NC A3 D3 D2 D1 D9 A0 LOGIC DIAGRAM D1 D2 D3 DECIMAL DATA INPUTS (ACTIVE–LOW) D4 D5 D6 D7 D8 D9 11 12 13 1 2 3 4 5 10 9 7 6 14 A0 A1 A2 A3 D5 D6 D7 D8 A2 BCD ADDRESS OUTPUTS (ACTIVE–LOW) A1 GND NC = NO CONNECTION FUNCTION TABLE Inputs H H H H H H H H H L H H H H H H H H L X H H H H H H H L X X H H H H H H L X X X H H H H H L X X X X H H H H L X X X X X H H H L X X X X X X H H L X X X X X X X H L ...