74VHC257MTR STMicroelectronics, 74VHC257MTR Datasheet - Page 2

• Manufacturer Part Number: 74VHC257MTR
• Description: IC MUX QUAD 2CHAN 3-STATE 16SOIC
• Manufacturer: STMicroelectronics
• Series: 74VHCr
• Type: Multiplexerr

Specifications of 74VHC257MTR

• Circuit: 4 x 2:1
• Independent Circuits: 1
• Current - Output High, Low: 8mA, 8mA
• Voltage Supply Source: Single Supply
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

74VHC257
Figure 2: Input Equivalent Circuit
Table 3: Truth Table
X : Don’t Care
Z : High Impedance
Figure 3: Logic Diagram
This logic diagram has not be used to estimate propagation delays
2/14
OE
H
L
L
L
L
SELECT
X
H
H
L
L
INPUTS
A
X
H
X
X
L
Table 2: Pin Description
3, 6, 10, 13
2, 5, 11, 14
4, 7, 9, 12
PIN N°
15
16
1
8
SYMBOL
SELECT
1A to 4A
1B to 4B
1Y to 4Y
GND
V
B
X
X
X
H
OE
L
CC
Common Data Select
Inputs
Data Inputs From Source
A
Data Inputs From Source
B
3 State Multiplexer
Outputs
3 State Output Enable
Inputs (Active LOW)
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
OUTPUT
Y
H
H
Z
L
L