74LS90 - Decade and Binary Counters

National Semiconductor

The 74LS90 by National Semiconductor is a Decade and Binary Counters. Below is the official datasheet preview.

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74LS90 Decade and Binary Counters by National Semiconductor - Datasheet Preview — Official preview page of the **74LS90** Decade and Binary Counters datasheet (National Semiconductor).

Datasheet Details

Part number	74LS90
Manufacturer	National Semiconductor
File Size	131.84 KB
Description	Decade and Binary Counters
Datasheet	74LS90_NationalSemiconductor.pdf
Additional preview pages of the 74LS90 datasheet.

74LS90 Product details

Description

Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the ’LS90 and divideby-eight for the ’LS93 All of these counters have a gated zero reset and the LS90 also has gated set-to-nine inputs for use in BCD nine’s complement applications To use their maximum count length (decade or four bit binary) the B input is connected to the QA output

Features

Y Y Typical power dissipation 45 mW Count frequency 42 MHz Connection Diagrams (Dual-In-Line Packages) TL F 6381.
1 Order Number DM74LS90M or DM74LS90N See NS Package Number M14A or N14A TL F 6381.
2 Order Number DM74LS93M or DM74LS93N See NS Package Number M14A or N14A C1995 National Semiconductor Corporation TL F 6381 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semicond.

📁 74LS90 Similar Datasheet

74LS91 - 8 Bit SHift Registers (Raytheon)
74LS92 - Divide-by-Twelve Counters (Hitachi Semiconductor)
74LS93 - DIVIDE-BY-SIXTEEN COUNTER (ETC)
74LS95 - 4-bit Parallel Access Shift Registers (Hitachi Semiconductor)
74LS96 - Shift Registers (Signetics)
74LS00 - Quad 2-Input NAND Gate (Fairchild Semiconductor)
74LS01 - Quadruple 2-input Positive NAND Gates (Hitachi Semiconductor)
74LS02 - Quad 2-Input NOR Gate (Fairchild Semiconductor)

Other Datasheets by National Semiconductor

74LS04 - Hex Inverting Gates
74LS126A - Quad TRI-STATE Buffer
74LS139 - Decoders/Demultiplexers
74LS14 - Hex Inverters
74LS153 - Dual 4-Line to 1-Line Data Selectors/Multiplexers
74LS154 - 4-Line to 16-Line Decoders/Demultiplexers

Published: Apr 23, 2005 |