Details, datasheet, quote on part number: 74F455
CompanyPhilips Semiconductors (Acquired by NXP)
DatasheetDownload 74F455 datasheet
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Features, Applications

* Discontinued part. Please see the Discontinued Product List.
Product specification Supersedes data of 1990 Nov 26 IC15 Data Handbook

74F455 Octal Buffer/Driver with Parity, Inverting (3-State) 74F456 Octal Buffer/Driver with Parity, Non-Inverting (3-State)

High impedance NPN base inputs for reduced loading

The 74F455 and 74F456 are octal buffers and line drivers with parity generation/checking designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters/receivers. These parts include parity generator/checker to improve PC board density. TYPICAL PROPAGATION DELAY 6.5ns 7.5ns

74F456 combines 74F244 and 74F280A functions in one package is a center pin version of the 74F656A 74F456 Non-Inverting 3-State outputs sink 64mA and source 15mA 24-pin plastic Slim DIP (300 mil) package Broadside pinout simplifies PC board layout

PINS O Q0­Q7 Data inputs Parity input Output Enable inputs (active Low) Parity outputs Data outputs (75F455) DESCRIPTION 74F(U.L.) HIGH/LOW LOAD VALUE HIGH/LOW 20µA/20µA 15mA/64mA

Q0­Q7 Data outputs (75F456) 750/106.7 NOTE: One (1.0) FAST Unit Load (U.L.) is defined 20µA in the High state and 0.6mA in the Low state.

* Discontinued part. Please see the Discontinued Products List. 1999 Jan 08

INPUTS Number of inputs, High (PI, - D7) Even Odd Any OEn = High voltage level Low voltage level High impedance "off" state Don't care OUTPUTS

High voltage level Low voltage level High impedance "off" state Don't care
* Discontinued part. Please see the Discontinued Products List.


Some Part number from the same manufacture Philips Semiconductors (Acquired by NXP)
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