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CD74AC251 Datasheet(PDF) 1 Page - Texas Instruments

Part No. CD74AC251
Description  8-Input Multiplexer, Three-State
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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CD74AC251 Datasheet(HTML) 1 Page - Texas Instruments

 
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Data sheet acquired from Harris Semiconductor
SCHS246
Features
• Buffered Inputs
• Typical Propagation Delay
- 6ns at VCC = 5V, TA = 25
oC, 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
Ω 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
I3
I2
I1
I0
Y
Y
GND
OE
VCC
I5
I6
I7
S0
S1
S2
I4
Ordering Information
PART
NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG.
NO.
CD74AC251E
0 to 70oC, -40 to 85,
-55 to 125
16 Ld PDIP
E16.3
CD74ACT251E
0 to 70oC, -40 to 85,
-55 to 125
16 Ld PDIP
E16.3
CD74AC251M
0 to 70oC, -40 to 85,
-55 to 125
16 Ld SOIC
M16.15
CD74ACT251M
0 to 70oC, -40 to 85,
-55 to 125
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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