NAND

74LS20 Datasheet – Dual 4-Input NAND Gate – Motorola

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Part Number : 74LS20

Function : DUAL 4-INPUT NAND GATE LOW POWER SCHOTTKY

Package : DIP, SOP 14 Pin

Manufacturers : Motorola => Freescale

Image

Description :

This device contains two independent gates each of which performs the logic NAND function.

Pinout and Block Diagram :

74LS20 datasheet

Other data sheets within the file : 54LS20, 74LS20P, SN54LS20, SN54LS20J

74LS20 Datasheet PDF Download

74LS20 pdf

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FZH111A Datasheet – Quad 2-input NAND Gate – Siemens

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Part Number : FZH111A

Function : Quad 2-input NAND Gate

Package : DIP 16P

Manufacturers : Siemens AG

Image :

FZH111A

Description :

The chips used DTL (Diode-Transistor Logic) which was a predessesor of of the TTL (Transistor-Transistor-Logic) manufactured in the late 60s. If neccesary I could provide basic data and pinout from an old Valvo databook but it might take some days to find it.

Pinout

FZH111A pinout

FZH111A datasheet

Reference page :

1. https://www.eng-tips.com/viewthread.cfm?qid=59163

2. http://www.radiomuseum.org/tubes/tube_fzh111.html

FZH111A Datasheet

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