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PDF ( 数据手册 , 数据表 ) M74HC237

零件编号 M74HC237
描述 3 TO 8 LINE DECODER LATCH
制造商 ST Microelectronics
LOGO ST Microelectronics LOGO 


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M74HC237 数据手册, 描述, 功能
M74HC237
3 TO 8 LINE DECODER LATCH
s HIGH SPEED:
tPD = 16ns (TYP.) at VCC = 6V
s LOW POWER DISSIPATION:
ICC = 4µA(MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
)VNIH = VNIL = 28 % VCC (MIN.)
t(ss SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
ucs BALANCED PROPAGATION DELAYS:
dtPLH tPHL
ro )s WIDE OPERATING VOLTAGE RANGE:
P t(sVCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
lete uc74 SERIES 237
so rodDESCRIPTION
b PThe M74HC237 is an high speed CMOS 3 TO 8
LINE DECODER fabricated with silicon gate
- O teC2MOS technology.
) leWhen GL goes from low to high, the address
t(s opresent at the select inputs (A, B, C) is stored in
sthe latches. As long as GL remains high no
c baddress changes will be recognized. Output
u Oenable controls, G1 and G2 control the state of the
d -outputs independently of the select or
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSOP
M74HC237B1R
M74HC237M1R
T&R
M74HC237RM13TR
M74HC237TTR
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.
OObbssoolleettee PPrrooduct(s)PIN CONNECTION AND IEC LOGIC SYMBOLS
July 2001
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M74HC237 pdf, 数据表
M74HC237
Plastic DIP-16 (0.25) MECHANICAL DATA
DIM.
MIN.
mm.
TYP
MAX.
MIN.
inch
TYP.
MAX.
a1 0.51
0.020
B 0.77
1.65 0.030
0.065
b 0.5
0.020
b1 0.25
0.010
t(s)D 20 0.787
cE 8.5
0.335
rodue 2.54
0.100
P t(s)e3 17.78
0.700
lete ucF 7.1 0.280
so rodI 5.1 0.201
b PL 3.3
0.130
OObbssoolleettee PPrroodduucctt((ss)) -- OObsoleteZ 1.27 0.050
P001C
8/11














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