74HCT251N,652 NXP Semiconductors, 74HCT251N,652 Datasheet - Page 4

• Manufacturer Part Number: 74HCT251N,652
• Description: IC MULTIPLEXER 8-IN 3ST 16-DIP
• Manufacturer: NXP Semiconductors
• Series: 74HCTr
• Type: Multiplexerr

Specifications of 74HCT251N,652

• Package / Case: 16-DIP (0.300", 7.62mm)
• Circuit: 1 x 8:1
• Independent Circuits: 1
• Voltage Supply Source: Single Supply
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Product: Decoders, Encoders, Multiplexers & Demultiplexers
• Logic Family: 74HCT
• Number Of Lines (input / Output): 8.0 / 1.0
• Propagation Delay Time: 19 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: Through Hole
• Number Of Input Lines: 8.0
• Number Of Output Lines: 1.0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output High, Low: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 74HCT251N; 74HCT251N; 933670160652

Philips Semiconductors
FUNCTION TABLE
Note
1. H = HIGH voltage level
December 1990
8-input multiplexer; 3-state
OE
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
Fig.4 Functional diagram.
S
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
2
S
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
1
S
X
H
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
0
I
X
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
0
I
X
X
X
H
X
X
X
X
X
X
X
X
X
X
X
X
L
1
INPUTS
I
X
X
X
X
X
H
X
X
X
X
X
X
X
X
X
X
L
2
4
I
X
X
X
X
X
X
X
H
X
X
X
X
X
X
X
X
L
3
Fig.5 Logic diagram.
I
X
X
X
X
X
X
X
X
X
H
X
X
X
X
X
X
L
4
I
X
X
X
X
X
X
X
X
X
X
H
X
X
X
X
X
L
5
I
H
X
X
X
X
X
X
X
X
X
X
X
X
X
L
X
X
6
74HC/HCT251
I
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
7
Product specification
OUTPUTS
H
H
H
H
H
H
H
H
Y
Z
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
Y
Z
L
L
L
L
L
L
L
L