Datasheet > DM74AS280

DM74AS280

更新时间： 2024-09-30 22:56:51

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
6页	67K
描述
9-Bit Parity Generator/Checker

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数据手册

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DM74AS280 数据手册

October 1986

Revised March 2000

DM74AS280

9-Bit Parity Generator/Checker

General Description

Features

These universal, 9-bit parity generators/checkers utilize

advanced Schottky high performance circuitry and feature

odd/even outputs to facilitate operation of either odd or

even parity applications. The word length capability is eas-

ily expanded by cascading.

■ Generates either odd or even parity for nine data lines

■ Inputs are buffered to lower the drive requirements

■ Can be used to upgrade existing systems using MSI

parity circuits

■ Cascadable for N-bits

The DM74AS280 can be used to upgrade the performance

of most systems utilizing the ’180 parity generator/checker.

Although the DM74AS280 is implemented without

expander inputs, the corresponding function is provided by

the availability of an input at pin 4 and no internal connec-

tion at pin 3. This permits the DM74AS280 to be substi-

tuted for the ’180 in existing designs to produce identical

function even if DM74AS280s are mixed with existing

’180s.

■ Advanced oxide-isolated, ion-implanted Schottky

TTL process

■ Switching specifications at 50 pF

■ Switching specifications guaranteed over full

temperature and V_CCrange

Ordering Code:

Order Number Package Number

Package Description

DM74AS280M

DM74AS280N

M14A

N14A

14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow

14-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.

Connection Diagram

Function Table

Number of Inputs (A thru I)

that are HIGH

Outputs

∑Even

∑Odd

0, 2, 4, 6, 8

1, 3, 5, 7, 9

L = LOW State

H = HIGH State

DS006303

www.fairchildsemi.com

12 3 4 5 6

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与DM74AS280相关器件

型号	品牌	获取价格	描述	数据表
DM74AS280J	ETC	获取价格	Parity Generator/Checker
DM74AS280J/A+	ETC	获取价格	Parity Generator/Checker
DM74AS280M	FAIRCHILD	获取价格	9-Bit Parity Generator/Checker
DM74AS280M	TI	获取价格	AS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDSO14, 0.150 INCH, PLAST
DM74AS280M/A+	ETC	获取价格	Parity Generator/Checker
DM74AS280M/B+	TI	获取价格	IC,PARITY GENERATOR/CHECKER,AS-TTL,SOP,14PIN,PLASTIC
DM74AS280MA+	TI	获取价格	AS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDSO14, 0.150 INCH, PLAST
DM74AS280MX	TI	获取价格	AS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDSO14, 0.150 INCH, PLAST
DM74AS280MX_NL	FAIRCHILD	获取价格	Parity Generator/Checker, AS Series, 9-Bit, Complementary Output, TTL, PDSO14, 0.150 INCH,
DM74AS280N	TI	获取价格	AS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDIP14, 0.300 INCH, PLAST