參數(shù)資料
型號(hào)： CD74ACT251M
廠商： Texas Instruments, Inc.
英文描述： 8-Input Multiplexer, Three-State
中文描述： 8輸入多路復(fù)用器，三態(tài)
文件頁數(shù)： 1/8頁
文件大?。?/td> 38K
代理商： CD74ACT251M
1
Data sheet acquired from Harris Semiconductor
SCHS246
Features
Buffered Inputs
Typical Propagation Delay
- 6ns at V
CC
= 5V, T
A
= 25
o
C, C
L
= 50pF
Exceeds 2kV ESD Protection MIL-STD-883, Method
3015
SCR-Latchup-Resistant CMOS Process and Circuit
Design
Speed of Bipolar FAST/AS/S with Significantly
Reduced Power Consumption
Balanced Propagation Delays
AC Types Feature 1.5V to 5.5V Operation and
Balanced Noise Immunity at 30% of the Supply
±
24mA Output Drive Current
- Fanout to 15 FAST ICs
- Drives 50
Transmission Lines
Pinout
CD74AC251, CD74ACT251
(PDIP, SOIC)
TOP VIEW
Description
The CD74AC251 and CD74ACT251 8-input multiplexers that
utilize the Harris Advanced CMOS Logic technology. This
multiplexer features both true (Y) and complement (Y) outputs
as well as an Output Enable (OE) input. The OE must be at a
LOW logic level to enable this device. When the OE input is
HIGH, both outputs are in the high-impedance state. When
enabled, address information on the data select inputs deter-
mines which data input is routed to the Y and Y outputs.
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
I
3
I
2
I
1
I
0
Y
Y
GND
OE
V
CC
I
5
I
6
I
7
S0
S1
S2
I
4
Ordering Information
PART
NUMBER
TEMP.
RANGE (
o
C)
0 to 70
o
C, -40 to 85,
-55 to 125
0 to 70
o
C, -40 to 85,
-55 to 125
0 to 70
o
C, -40 to 85,
-55 to 125
0 to 70
o
C, -40 to 85,
-55 to 125
PACKAGE
PKG.
NO.
CD74AC251E
16 Ld PDIP
E16.3
CD74ACT251E
16 Ld PDIP
E16.3
CD74AC251M
16 Ld SOIC
M16.15
CD74ACT251M
16 Ld SOIC
M16.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer and die for this part number is available which meets all elec-
trical specifications. Please contact your local sales office or Harris
customer service for ordering information.
August 1998
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
FAST is a Trademark of Fairchild Semiconductor.
Copyright
Harris Corporation 1998
CD74AC251,
CD74ACT251
8-Input Multiplexer, Three-State
File Number
1981.1
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