M54HC85 Datasheet, PDF (1/11 Pages) STMicroelectronics – 4-BIT MAGNITUDE COMPARATOR

M54HC85
M74HC85
4-BIT MAGNITUDE COMPARATOR
. HIGH SPEED
tPD = 22 ns (TYP.) at VCC = 5 V
. LOW POWER DISSIPATION
I_CC = 4 µA (MAX.) at T_A = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
. BALANCED PROPAGATION DELAYS
t_PLH = t_PHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V to 6 V
. PIN AND FUNCTION COMPATIBLE WITH
54/74LS85
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HC85F1R
M 74H C8 5M 1R
M 74HC 85 B1 R
M 74H C8 5C 1R
DESCRIPTION
The M54/74HC85 is a high speed CMOS 4-BIT
MAGNITUDE COMPARATOR fabricated in silicon
gate C²MOS technology. It has the same high
speed performance of LSTTL combined with true
CMOS low power consumption. This comparator
compares two 4-bit words and provides a high volt-
age level on one of the A > B out, A = B out and A < B
out outputs. The comparing bit number is easily ex-
panded by cascading several devices as shown in
the typical application. All inputs are equipped with
protection circuits against static discharge and tran-
sient excess voltage.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN CONNECTIONS (top view)
December 1992
NC =
No Internal
Connection
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