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74LS47 Datasheet PDF

Fairchild Semiconductor 74LS47

The DM74LS47 accepts four lines of BCD (8421) input data, generates their complements internally and decodes the data with seven AND/OR gates having open-collector outputs to drive indicator segments directly. Each segment output is guaranteed to sink 24 mA in the ON (LOW) state and withstand 15V in the OFF (HIGH) state with a maximum leakage current of 250 µA.
Part No. 74LS47
Datasheet 74LS47 Download
Manufacturer
Fairchild Semiconductor
Description BCD to 7-Segment Decoder/Driver
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74LS47 datasheet page 1 preview

GENERAL DESCRIPTION

Auxiliary inputs provided blanking, lamp test and cascadable zero-suppression functions.

FEATURES

s Open-collector outputs s Drive indicator segments directly s Cascadable zero-suppression capability s Lamp test input Ordering Code: Order Number DM74LS47M DM74LS47N Package Number M16A N16E Package

DESCRIPTION

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Connection Diagram VCC = Pin 16 GND = Pin 8 Pin Descriptions Pin Names A0–A3 RBI LT BI/RBO a –g BCD Inputs Ripple Blanking Input (Active LOW) Lamp Test Input (Active LOW) Blanking Input (Active LOW) or Ripple Blanking Output (Active LOW) Segment Outputs (Active LOW) (Note 1) Note 1: OC—Open Collector

DESCRIPTION

© 2000 Fairchild Semiconductor Corporation DS009817 DM74LS47 Truth Table Decimal or Functi...
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