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M74HC298 Datasheet(PDF) 1 Page - STMicroelectronics

Part # M74HC298
Description  QUAD 2 CHANNEL MULTIPLEXER/REGISTER
PDF  11 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HC298 Datasheet(HTML) 1 Page - STMicroelectronics

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July 2001
s
HIGH SPEED:
fMAX = 79 MHz (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
s
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 298
DESCRIPTION
The M74HC298 is an high speed CMOS QUAD 2
CHANNEL MULTIPLEXER/REGISTER fabricated
with silicon gate C2MOS technology.
These circuits are controlled by the signals WORD
SELECT and CLOCK. When the WORD SELECT
input is taken low Word 1 (A1, B1, C1 and D1) is
presented to the input of the flip-flops, and when
WORD SELECT is high Word 2 (A2, B2, C2 and
D2) is presented to the inputs of the flip-flops. The
select word is clocked to the output terminals on
the negative edge of the clock pulse.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC298
QUAD 2 CHANNEL MULTIPLEXER/REGISTER
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE
TUBE
T & R
DIP
M74HC298B1R
SOP
M74HC298M1R
M74HC298RM13TR
TSSOP
M74HC298TTR
TSSOP
DIP
SOP


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