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Teilenummer | M74HC279 |
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Beschreibung | QUAD S - R LATCH | |
Hersteller | ST Microelectronics | |
Logo | ||
Gesamt 10 Seiten . HIGH SPEED
tPD = 12 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 2 µA (MAX.) AT TA = 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
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS279
DESCRIPTION
The M54/74HC279 is a high speed CMOS QUAD S
- R LATCH fabricated in silicon gate C2MOS tech-
nology. It has the same high speed performance of
LSTTL combined with true CMOS low power con-
sumption.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
M54HC279
M74HC279
QUAD S - R LATCH
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M 54HC 27 9F 1R
M 74H C2 79 M1 R
M 74HC 27 9B 1R
M 74H C2 79 C1 R
PIN CONNECTIONS (top view)
March 1993
NC =
No Internal
Connection
1/10
M54/M74HC279
DIM.
a1
B
b
b1
D
E
e
e3
F
I
L
Z
Plastic DIP16 (0.25) MECHANICAL DATA
MIN.
0.51
0.77
mm
TYP.
0.5
0.25
8.5
2.54
17.78
3.3
MAX.
1.65
20
7.1
5.1
1.27
MIN.
0.020
0.030
inch
TYP.
0.020
0.010
0.335
0.100
0.700
0.130
MAX.
0.065
0.787
0.280
0.201
0.050
P001C
6/10
6 Page | ||
Seiten | Gesamt 10 Seiten | |
PDF Download | [ M74HC279 Schematic.PDF ] |
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