CD74AC251 Datasheet, PDF (1/8 Pages) Texas Instruments – 8-Input Multiplexer, Three-State

Data sheet acquired from Harris Semiconductor
SCHS246
August 1998
Features
• Buffered Inputs
• Typical Propagation Delay
- 6ns at V_CC = 5V, T_A = 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 50Ω Transmission Lines
Pinout
CD74AC251, CD74ACT251
(PDIP, SOIC)
TOP VIEW
I₃ 1
I₂ 2
I₁ 3
I₀ 4
Y5
Y6
OE 7
GND 8
16 V_CC
15 I₄
14 I₅
13 I₆
12 I₇
11 S0
10 S1
9 S2
CD74AC251,
CD74ACT251
8-Input Multiplexer, Three-State
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.
Ordering Information
PART
NUMBER
CD74AC251E
CD74ACT251E
CD74AC251M
CD74ACT251M
TEMP.
RANGE (^oC)
PACKAGE
0 to 70^oC, -40 to 85, 16 Ld PDIP
-55 to 125
0 to 70^oC, -40 to 85, 16 Ld PDIP
-55 to 125
0 to 70^oC, -40 to 85, 16 Ld SOIC
-55 to 125
0 to 70^oC, -40 to 85, 16 Ld SOIC
-55 to 125
PKG.
NO.
E16.3
E16.3
M16.15
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.
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
1
File Number 1981.1