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參數(shù)資料
| 型號(hào)： | DM74AS280 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 9-Bit Parity Generator/Checker |
| 中文描述： | 9位奇偶發(fā)生器/檢查 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 64K |
| 代理商： | DM74AS280 |
2000 Fairchild Semiconductor Corporation
DS006303
www.fairchildsemi.com
October 1986
Revised March 2000
D
DM74AS280
9-Bit Parity Generator/Checker
General Description
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.
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.
Features
I
Generates either odd or even parity for nine data lines
I
Inputs are buffered to lower the drive requirements
I
Can be used to upgrade existing systems using MSI
parity circuits
I
Cascadable for N-bits
I
Advanced oxide-isolated, ion-implanted Schottky
TTL process
I
Switching specifications at 50 pF
I
Switching specifications guaranteed over full
temperature and V
CC
range
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
L
=
LOW State
H
=
HIGH State
Order Number
DM74AS280M
DM74AS280N
Package Number
M14A
N14A
Package Description
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
Number of Inputs (A thru I)
that are HIGH
0, 2, 4, 6, 8
1, 3, 5, 7, 9
Outputs
∑
Even
H
L
∑
Odd
L
H
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM74AS280M | 10-Bit Bus Transceiver With 3-State Outputs 24-TSSOP -40 to 85 |
| DM74AS280N | 10-Bit Bus Transceiver With 3-State Outputs 24-TSSOP -40 to 85 |
| DM74AS286 | 9-Bit Parity Generator/Checker with Bus-Driver Parity I/O Port |
| DM74AS286M | 9-Bit Parity Generator/Checker with Bus-Driver Parity I/O Port |
| DM74AS286N | 10-Bit Bus Transceiver With 3-State Outputs 24-TSSOP -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74AS280M | 功能描述:奇偶功能 9-Bit Par Gen/Check 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(shí)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 |
| DM74AS280MX | 功能描述:奇偶功能 9-Bit Par Gen/Check 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(shí)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 |
| DM74AS280N | 功能描述:奇偶功能 9-Bit Par Gen/Check 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(shí)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 |
| DM74AS280N_Q | 功能描述:奇偶功能 9-Bit Par Gen/Check 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(shí)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 |
| DM74AS286M | 功能描述:奇偶功能 9-Bit Par Gen/Check 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(shí)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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