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7445

Fairchild Semiconductor
Part Number 7445
Manufacturer Fairchild Semiconductor
Description BCD to Decimal Decoders/Drivers
Published Apr 3, 2005
Detailed Description DM7445 BCD to Decimal Decoders/Drivers September 1986 Revised February 2000 DM7445 BCD to Decimal Decoders/Drivers Gen...
Datasheet PDF File 7445 PDF File

7445
7445

Overview
DM7445 BCD to Decimal Decoders/Drivers September 1986 Revised February 2000 DM7445 BCD to Decimal Decoders/Drivers General Description These BCD-to-decimal decoders/drivers consist of eight inverters and ten, four-input NAND gates.
The inverters are connected in pairs to make BCD input data available for decoding by the NAND gates.
Full decoding of BCD input logic ensures that all outputs remain OFF for all invalid (10–15) binary input conditions.
These decoders feature high-performance, NPN output transistors designed for use as indicator/relay drivers, or as open-collector logic-circuit drivers.
The high-breakdown output transistors are compatible for interfacing with most MOS integrated circuits.
Features s Full decoding of input logic s 80 mA sink-current capability s All outputs are off for invalid BCD input conditions Ordering Code: Order Number DM7445 Package Number N16E Package Description 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.
300 Wide Connection Diagram © 2000 Fairchild Semiconductor Corporation DS006517 www.
fairchildsemi.
com DM7445 Function Table No.
D 0 1 2 3 4 5 6 7 8 9 I N V A L I D H = HIGH Level (OFF) L = LOW Level (ON) Inputs C L L L L H H H H L L L L H H H H B L L H H L L H H L L H H L L H H A L H L H L H L H L H L H L H L H 0 L H H H H H H H H H H H H H H H 1 H L H H H H H H H H H H H H H H 2 H H L H H H H H H H H H H H H H 3 H H H L H H H H H H H H H H H H L L L L L L L L H H H H H H H H Outputs 4 H H H H L H H H H H H H H H H H 5 H H H H H L H H H H H H H H H H 6 H H H H H H L H H H H H H H H H 7 H H H H H H H L H H H H H H H H 8 H H H H H H H H L H H H H H H H 9 H H H H H H H H H L H H H H H H Logic Diagram www.
fairchildsemi.
com 2 DM7445 Absolute Maximum Ratings(Note 1) Supply Voltage Input Voltage Output Voltage Operating Free Air Temperature Range Storage Temperature Range 7V 5.
5V 30V 0°C to +70°C −65°C to +150°C Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the devic...


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