M74HC298B1R STMicroelectronics, M74HC298B1R Datasheet - Page 2

• Manufacturer Part Number: M74HC298B1R
• Description: IC MUX/REGISTER QUAD 2CH 16-DIP
• Manufacturer: STMicroelectronics
• Series: 74HCr
• Type: Multiplexerr

Specifications of M74HC298B1R

• Circuit: 4 x 2:1
• Independent Circuits: 1
• Current - Output High, Low: 5.2mA, 5.2mA
• Voltage Supply Source: Single Supply
• Voltage - Supply: 2 V ~ 6 V
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M74HC298
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
X : Don’t Care
a1, a2, ETC. : The level of steady state input at a1, a2, etc.
QA0, QB0, ETC. : The level of QA, QB, ETC entered on the most recent negative transition of the clock input.
LOGIC DIAGRAM
This logic diagram has not be used to estimate propagation delays
2/11
WORD SELECT
H
X
L
INPUTS
CLOCK
QA0
QA
a1
a2
PIN DESCRIPTION
1, 2, 5, 6
3, 4, 7, 9
12 to 15
PIN No
QB0
QB
b1
b2
10
16
11
8
OUTPUTS
A2, B2, C2,
A1, B1, C1,
QA to QD
SYMBOL
SELECT
CLOCK
WORD
GND
V
D2
D1
CC
QC0
QC
c1
c2
Word 2 Data Inputs
Word 1 Data Inputs
Outputs
Word Select Input
Clock Input (LOW to
HIGH, Edge-triggered)
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION
QD0
QD
d1
d2