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27256 Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer 27256
Beschreibung NMOS 256K 32K x 8 UV EPROM
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 9 Seiten
27256 Datasheet, Funktion
M74HC51
DUAL 2 WIDE 2 INPUT AND/OR INVERT GATE
s HIGH SPEED:
tPD = 11ns (TYP.) at VCC = 6V
s LOW POWER DISSIPATION:
ICC = 1µA(MAX.) at TA=25°C
s HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
s BALANCED PROPAGATION DELAYS:
tPLH tPHL
s WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 51
DESCRIPTION
The M74HC51 is an high speed CMOS DUAL 2
WIDE 2 INPUT AND/OR INVERT GATE
fabricated with silicon gate C2MOS technology.
It contains a 2-WIDE 2-INPUT AND/OR INVERT
GATE and a 2-WIDE 3-INPUT AND/OR
INVERT GATE.
DIP
SOP
TSSOP
ORDER CODES
PACKAGE
TUBE
DIP
SOP
TSSO P
M74HC51B1R
M74HC51M1R
T&R
M74HC51RM13TR
M74HC51TTR
The internal circuit is composed of 3 stages (2
INPUT) or 5 stages (3 INPUT) including buffer
output, which enables high noise immunity and
stable output.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PIN CONNECTION AND IEC LOGIC SYMBOLS
August 2001
1/9






27256 Datasheet, Funktion
M74HC51
DIM.
a1
B
b
b1
D
E
e
e3
F
I
L
Z
Plastic DIP-14 MECHANICAL DATA
MIN.
0.51
1.39
1.27
mm.
TYP
0.5
0.25
8.5
2.54
15.24
3.3
MAX.
1.65
20
7.1
5.1
2.54
MIN.
0.020
0.055
0.050
inch
TYP.
0.020
0.010
0.335
0.100
0.600
0.130
MAX.
0.065
0.787
0.280
0.201
0.100
P001A
6/9

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