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參數(shù)資料
| 型號(hào)： | IN74ACT251 |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | 8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
| 中文描述： | 8輸入數(shù)據(jù)選擇器/ 3多路態(tài)輸出 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大?。?/td> | 192K |
| 代理商： | IN74ACT251 |
IN74ACT251
1
8-I
NPUT
D
ATA
S
ELECTOR
/M
ULTIPLEXER
WITH
3-S
TATE
O
UTPUTS
High-Speed Silicon-Gate CMOS
The IN74ACT251 is identical in pinout to the LS/ALS251,
HC/HCT251. The IN74ACT251 may be used as a level converter
for interfacing TTL or NMOS outputs to High Speed CMOS inputs.
The device selects one of the eight binary Data Inputs, as
determined by the Address Inputs. The Output Enable pin must be
at a low level for the selected data to appear at the outputs. If
Output Enable is high, the Y and the Y outputs are in the high-
impedance state. This 3-State feature allows the IN74ACT251 to
be used in bus-oriented systems.
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0
μ
A; 0.1
μ
A @ 25
°
C
Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74ACT251N Plastic
IN74ACT251D SOIC
T
A
= -40
°
to 85
°
C for all
packages
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
A0
Output
Enable
X
H
L
L
H
L
L
L
H
L
L
L
H
L
L
L
H
L
D0,D1...D7=the level of the
respective D input
Z = high-impedance state
X = don’t care
Outputs
Y
A2
A1
Y
X
L
L
L
L
H
H
H
H
X
L
L
H
H
L
L
H
H
Z
D0
D1
D2
D3
D4
D5
D6
D7
Z
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IN74ACT251D | 8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
| IN74ACT251N | 8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
| IN74ACT253N | DUAL 4-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OTPUTS |
| IN74ACT253 | DUAL 4-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OTPUTS |
| IN74ACT253D | DUAL 4-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OTPUTS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IN74ACT251D | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
| IN74ACT251N | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS |
| IN74ACT253 | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:DUAL 4-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OTPUTS |
| IN74ACT253D | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:DUAL 4-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OTPUTS |
| IN74ACT253N | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:DUAL 4-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OTPUTS |
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