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SN54HC21 - DUAL 4-INPUT POSITIVE-AND GATES

Description

This device contains two independent 4-input AND gates.

B C

D in positive logic.

Features

  • Buffered inputs.
  • Wide operating voltage range: 2 V to 6 V.
  • Wide operating temperature range: -40°C to +85°C.
  • Supports fanout up to 10 LSTTL loads.
  • Significant power reduction compared to LSTTL logic ICs 2.

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Full PDF Text Transcription

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SN74HC21, SN54HC21 SCLS087F – DECEMBER 1982 – REVISED JUNE 2021 SNx4HC21 Dual 4-Input AND Gates 1 Features • Buffered inputs • Wide operating voltage range: 2 V to 6 V • Wide operating temperature range: -40°C to +85°C • Supports fanout up to 10 LSTTL loads • Significant power reduction compared to LSTTL logic ICs 2 Applications • Combining power good signals • Enable digital signals 3 Description This device contains two independent 4-input AND gates. Each gate performs the Boolean function Y = A ● B ● C ● D in positive logic. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SN74HC21D SOIC (14) 8.70 mm × 3.90 mm SN74HC21N PDIP (14) 19.30 mm × 6.40 mm SN74HC21NS SO (14) 10.20 mm × 5.30 mm SN74HC21PW TSSOP (14) 5.00 mm × 4.40 mm SN54HC21J CDIP (14) 21.
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