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參數(shù)資料
型號: SN74ALS280D
廠商: TEXAS INSTRUMENTS INC
元件分類: 算術(shù)邏輯單元
英文描述: ALS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDSO14
封裝: PLASTIC, SO-14
文件頁數(shù): 1/14頁
文件大小: 505K
代理商: SN74ALS280D
SN74ALS280, SN74AS280
9BIT PARITY GENERATORS/CHECKERS
SDAS038C DECEMBER 1982 REVISED DECEMBER 1994
Copyright
1994, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
Generate Either Odd or Even Parity for Nine
Data Lines
Cascadable for n-Bit Parity
Can Be Used to Upgrade Existing Systems
Using MSI Parity Circuits
Package Options Include Plastic
Small-Outline (D) Packages and Standard
Plastic (N) 300-mil DIPs
description
These universal 9-bit parity generators/checkers
utilize
advanced
Schottky
high-performance
circuitry and feature odd (
Σ ODD) and even (Σ EVEN) outputs to facilitate operation of either odd- or even-parity
applications. The word-length capability is easily expanded by cascading.
These devices can be used to upgrade the performance of most systems utilizing the SN74ALS180 and
SN74AS180 parity generators/checkers. Although the SN74ALS280 and SN74AS280 are implemented without
expander inputs, the corresponding function is provided by the availability of an input (I) at terminal 4 and the
absence of any internal connection at terminal 3. This permits the SN74ALS280 and SN74AS280 to be
substituted for the SN74ALS180 and SN74AS180 in existing designs to produce an identical function even if
the devices are mixed with existing SN74ALS180 and SN74AS180 devices.
All SN74AS280 inputs are buffered to lower the drive requirements.
The SN74ALS280 and SN74AS280 are characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
NO. OF INPUTS
A I
OUTPUTS
A I
THAT ARE HIGH
Σ EVEN
Σ ODD
0, 2, 4, 6, 8
H
L
1, 3, 5, 7, 9
L
H
logic symbol
2k
12
E
8
A
9
B
10
C
11
D
13
F
1
G
2
H
4
I
6
5
Σ EVEN
Σ ODD
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
D OR N PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
G
H
NC
I
Σ EVEN
Σ ODD
GND
VCC
F
E
D
C
B
A
NC No internal connection
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN74ALS280DE4 功能描述:奇偶功能 9-Bit Odd/Even Prty Generators/Checkers RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel
SN74ALS280DG4 功能描述:奇偶功能 9B Odd Even Parity Generators Checkers RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel
SN74ALS280DR 功能描述:奇偶功能 9-Bit Odd/Even Prty Generators/Checkers RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel
SN74ALS280DRE4 功能描述:奇偶功能 9-Bit Odd/Even Prty Generators/Checkers RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel
SN74ALS280DRG4 功能描述:奇偶功能 9B Odd Even Parity Generators Checkers RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel
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