M74HC298 Datasheet, PDF (1/11 Pages) STMicroelectronics – QUAD 2 CHANNEL MULTIPLEXER/REGISTER

M74HC298
QUAD 2 CHANNEL MULTIPLEXER/REGISTER
s HIGH SPEED:
f_MAX = 79 MHz (TYP.) at V_CC = 6V
s LOW POWER DISSIPATION:
I_CC = 4µA(MAX.) at T_A=25°C
s HIGH NOISE IMMUNITY:
V_NIH = V_NIL = 28 % V_CC (MIN.)
s SYMMETRICAL OUTPUT IMPEDANCE:
|I_OH| = I_OL = 4mA (MIN)
s BALANCED PROPAGATION DELAYS:
t_PLH ≅ t_PHL
s WIDE OPERATING VOLTAGE RANGE:
V_CC (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
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC298B1R
M74HC298M1R
T&R
M74HC298RM13TR
M74HC298TTR
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.
PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
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