1/11July 2001
■ HIGH SPEED:
t
PD
= 16ns (TYP.) at V
CC
= 6V
■ LOW POWER DISSIPATION:
I
CC
= 4µA(MAX.) at T
A
=25°C
■ HIGH NOISE IMMUNITY:
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
| = I
OL
= 4mA (MIN)
■ BALANCED PROPAGATION DELAYS:
t
PLH
≅ t
PHL
■ WIDE OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 6V
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 237
DESCRIPTION
The M74HC237 is an high speed CMOS 3 TO 8
LINE DECODER fabricated with silicon gate
C
2
MOS technology.
When GL
goes from low to high, the address
present at the select inputs (A, B, C) is stored in
the latches. As long as GL
remains high no
address changes will be recognized. Output
enable controls, G1 and G2
control the state of the
outputs independently of the select or
latch-enable inputs. All of the outputs are low
unless G1 is high and G2
is low. The M74HC237
is ideally suited for the implementation of
glitch-free decoders in stored-address
applications in bus oriented systems.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
M74HC237
3 TO 8 LINE DECODER LATCH
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAGE TUBE T & R
DIP M74HC237B1R
SOP M74HC237M1R M74HC237RM13TR
TSSOP M74HC237TTR
TSSOPDIP SOP
Obsolete Product(s) - Obsolete Product(s)
