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參數(shù)資料
| 型號： | KK74ACT251N |
| 廠商： | KODENSHI CORP. |
| 英文描述： | 8-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS |
| 中文描述： | 8輸入數(shù)據(jù)選擇器/多路3態(tài)輸出的高速硅柵CMOS |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 221K |
| 代理商： | KK74ACT251N |
TECHNICAL DATA
8-Input Data Selector/Multiplexer
with 3-State Outputs
High-Speed Silicon-Gate CMOS
K K
74ACT251
ORDERING INFORMATION
KK
74ACT251N Plastic
KK
74ACT251D SOIC
T
A
= -40
°
to 85
°
C for all packages
The
KK
74ACT251 is identical in pinout to the LS/ALS251,
HC/HCT251. The
KK
74ACT251 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
KK
74ACT251 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
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
A2
A1
A0
Output
Enable
Y
Y
X
X
X
H
Z
Z
L
L
L
L
D0
D0
L
L
H
L
D1
D1
L
H
L
L
D2
D2
L
H
H
L
D3
D3
H
L
L
L
D4
D4
H
L
H
L
D5
D5
H
H
L
L
D6
D6
H
H
H
L
D7
D7
D0,D1...D7=the level of the respective D
input
Z = high-impedance state
X = don’t care
1
相關PDF資料 |
PDF描述 |
|---|---|
| KK74ACT253 | Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS |
| KK74ACT253D | Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS |
| KK74ACT253N | Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS |
| KK74ACT257 | Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS |
| KK74ACT257D | Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| KK74ACT253 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS |
| KK74ACT253D | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS |
| KK74ACT253N | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS |
| KK74ACT257 | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS |
| KK74ACT257D | 制造商:KODENSHI 制造商全稱:KODENSHI KOREA CORP. 功能描述:Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS |
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