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| 型号： | SN74ALS280D |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | ALS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDSO14 |
| 封装： | PLASTIC, SO-14 |
| 文件页数： | 11/14页 |
| 文件大小： | 505K |
| 代理商： | SN74ALS280D |
SN74ALS280, SN74AS280
9BIT PARITY GENERATORS/CHECKERS
SDAS038C DECEMBER 1982 REVISED DECEMBER 1994
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/74ALS AND 54AS/ 74AS DEVICES
tPHZ
tPLZ
tPHL
tPLH
0.3 V
tPZL
tPZH
tPLH
tPHL
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
From Output
Under Test
Test
Point
R1
S1
CL
(see Note A)
7 V
1.3 V
3.5 V
0.3 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing
Input
Data
Input
1.3 V
3.5 V
0.3 V
High-Level
Pulse
Low-Level
Pulse
tw
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
Out-of-Phase
Output
(see Note C)
1.3 V
3.5 V
0.3 V
VOL
VOH
VOL
Output
Control
(low-level
enabling)
Waveform 1
S1 Closed
(see Note B)
Waveform 2
S1 Open
(see Note B)
[0 V
VOH
VOL
[3.5 V
In-Phase
Output
0.3 V
1.3 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
R2
VCC
RL
Test
Point
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
From Output
Under Test
Test
Point
CL
(see Note A)
RL
RL = R1 = R2
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR
≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%.
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
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| SN74ALS280DE4 | 功能描述:奇偶功能 9-Bit Odd/Even Prty Generators/Checkers RoHS:否 制造商:Texas Instruments 电路数量:1 位数:9 逻辑系列:74AC 封装 / 箱体:SOIC-14 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:263 ns 工作电源电压:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作温度:+ 70 C 最小工作温度:- 55 C 封装:Reel |
| SN74ALS280DG4 | 功能描述:奇偶功能 9B Odd Even Parity Generators Checkers RoHS:否 制造商:Texas Instruments 电路数量:1 位数:9 逻辑系列:74AC 封装 / 箱体:SOIC-14 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:263 ns 工作电源电压:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作温度:+ 70 C 最小工作温度:- 55 C 封装:Reel |
| SN74ALS280DR | 功能描述:奇偶功能 9-Bit Odd/Even Prty Generators/Checkers RoHS:否 制造商:Texas Instruments 电路数量:1 位数:9 逻辑系列:74AC 封装 / 箱体:SOIC-14 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:263 ns 工作电源电压:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作温度:+ 70 C 最小工作温度:- 55 C 封装:Reel |
| SN74ALS280DRE4 | 功能描述:奇偶功能 9-Bit Odd/Even Prty Generators/Checkers RoHS:否 制造商:Texas Instruments 电路数量:1 位数:9 逻辑系列:74AC 封装 / 箱体:SOIC-14 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:263 ns 工作电源电压:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作温度:+ 70 C 最小工作温度:- 55 C 封装:Reel |
| SN74ALS280DRG4 | 功能描述:奇偶功能 9B Odd Even Parity Generators Checkers RoHS:否 制造商:Texas Instruments 电路数量:1 位数:9 逻辑系列:74AC 封装 / 箱体:SOIC-14 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:263 ns 工作电源电压:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作温度:+ 70 C 最小工作温度:- 55 C 封装:Reel |
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