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STMicroelectronics Electronic Components Datasheet

M74HC534 Datasheet

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT HC374 NON INVERTING - HC534 INVERTING

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M74HC534 pdf
M54/74HC374
M54/74HC534
OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT
HC374 NON INVERTING - HC534 INVERTING
. HIGH SPEED
fMAX = 77 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 54/74LS374/534
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HCXXXF1R M74HCXXXM1R
M74HCXXXB1R M74HCXXXC1R
DESCRIPTION
The M54/74HC374, M54/74HC534, 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 (HC374) or their complements
(HC534).
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 HC374 and HC574 are identi-
cal, apart from pin layout. The 3-state output
configuration and the wide choice of outline make
bus-organized systems simple. All inputs are
equipped with protection circuits against static dis-
charge and transient excess voltage.
PIN CONNECTION (top view)
March 1993
1/13


STMicroelectronics Electronic Components Datasheet

M74HC534 Datasheet

OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT HC374 NON INVERTING - HC534 INVERTING

No Preview Available !

M74HC534 pdf
M54/M74HC374/534
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HC374)
PIN No
1
2, 5, 6, 9,
12, 15, 16,
19
3, 4, 7, 8,
13, 14, 17,
18
11
10
20
SYMBOL
OE
Q0 to Q7
D0 to D7
CLOCK
GND
VCC
NAME AND FUNCTION
3 State output Enable
Input (Active LOW)
3 State outputs
Data Inputs
Clock Input (LOW to
HIGH, edge triggered)
Ground (0V)
Positive Supply Voltage
IEC LOGIC SYMBOLS
HC374
PIN DESCRIPTION (HC534)
PIN No
1
2, 5, 6, 9,
12, 15, 16,
19
3, 4, 7, 8,
13, 14, 17,
18
11
10
20
SYMBOL
OE
Q0 to Q7
D0 to D7
CLOCK
GND
VCC
NAME AND FUNCTION
3 State output Enable
Input (Active LOW)
3 State outputs
Data Inputs
Clock Input (LOW to
HIGH, edge triggered)
Ground (0V)
Positive Supply Voltage
HC534
2/13


Part Number M74HC534
Description OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT HC374 NON INVERTING - HC534 INVERTING
Maker ST Microelectronics
Total Page 13 Pages
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