M74HC251 Datasheet, PDF (1/11 Pages) STMicroelectronics – 8-CHANNEL MULTIPLEXER (3-STATE)

M74HC251
8-CHANNEL MULTIPLEXER (3-STATE)
s HIGH SPEED :
t_PD = 17 ns (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 251
DESCRIPTION
The M74HC251 is an high speed CMOS
8-CHANNEL MULTIPLEXER (3-STATE)
fabricated with silicon gate C²MOS technology.
This Multiplexer features both true (Y) and
complement (W) outputs as well as STROBE
input. When the STROBE is high, both outputs are
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC251B1R
M74HC251M1R
T&R
M74HC251RM13TR
M74HC251TTR
in the high impedance state. When enabled,
address information on the data select inputs
determines which data input is routed to Y and W.
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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