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M54HC574 fiches techniques PDF

ST Microelectronics - OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT HC564 INVERTING - HC574 NON INVERTING

Numéro de référence M54HC574
Description OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT HC564 INVERTING - HC574 NON INVERTING
Fabricant ST Microelectronics 
Logo ST Microelectronics 





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M54HC574 fiche technique
M54/74HC564
M54/74HC574
OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT
HC564 INVERTING - HC574 NON INVERTING
. HIGH SPEED
fMAX = 62 MHz (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28% VCC (MIN)
. OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
IOL = IOH= 6 mA (MIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS564/574
DESCRIPTION
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M 5 4HCX XXF 1R
M 74 HC XXXM 1R
M 7 4H CX XXB1 R
M7 4H CX XX C1R
The M54/74HC564 and M54HC574 are high speed
CMOS OCTAL D-TYPE FLIP FLOP WITH 3-STATE
OUTPUTS fabricated with in silicon gate C2MOS
technology. They have the same high speed per-
formance of LSTTL combined with true CMOS low
power comsuption. These8-bit D-type flip-flops are
controlled by a clock input (CK) and an ouput enable
input (OE). On the positive transition of the clock, the
Q outputs will be set to the logic state that were setup
at the D inputs (HC574) or their complements
(HC564).
While the OE input is low, the eight outputs will be
in a normal logic state (high or low logic level), and
while high level, the outputs will be in a high imped-
ance state. The output control does not affect the in-
ternal operation of flip-flops. That is, the old data can
be retained or the new data can be entered even
while the outputs are off. The application engineer
has a choice of combination of inverting and non-in-
verting outputs. The 3-state output configuration
and the wide choice of outline make bus-organized
systems simple. All inputs are equipped with protec-
tion circuits against static discharge and transient
excess voltage.
PIN CONNECTION (top view)
March 1993
1/13

PagesPages 13
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