M54/74HCT564
M54/74HCT574
September 1993
HCT564 INVERTING - HCT574 NON INVERTING
OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT
B1R
(Plastic Package)
ORDER CODES :
M54HCTXXXF1R
M74HCTXXXM1R
M74HCTXXXB1R
M74HCTXXXC1R
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
PIN CONNECTION (top view)
.
HIGH SPEED
f
MAX
= 62 MHz (TYP.) AT V
CC
= 5 V
.
LOW POWER DISSIPATION
I
CC
= 4
A (MAX.) AT T
A
= 25
C
.
COMPATIBLE WITH TTL OUTPUTS
V
IH
= 2V (MIN.) V
IL
= 0.8V (MAX)
.
OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OL
=
I
OH
= 6 mA (MIN.)
.
BALANCED PROPAGATION DELAYS
t
PLH
= t
PHL
.
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS564/574
DESCRIPTION
The M54/74HCT564 and M54HCT574 are high
speed CMOS OCTAL D-TYPE FLIP FLOP WITH 3-
STATE OUTPUTS fabricated in silicon gate C
2
MOS
technology. They have the same high speed per-
formance of LSTTL combined with true CMOS low
power comsuption. These 8-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 (HCT574) or their complements
(HCT564).
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. This integrated circuit has input and
output characteristics that are fully compatible with
54/74 LSTTL logic families. M54/74HCT devices
are designed to directly interface HSC
2
MOS sys-
tems with TTL and NMOS components. They are
also plug in replacements for LSTTL devices giving
a reduction of power consumption.
HCT564
HCT574
HCT564
HCT574
1/13
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HCT564)
PIN No
SYMBOL
NAME AND FUNCTION
1
OE
3 State output Enable
Input (Active LOW)
2, 3, 4, 5,
6, 7, 8, 9
D0 to D7
Data Inputs
12, 13, 14,
15, 16, 17,
18, 19
Q0 to Q7
3 State outputs
11
CLOCK
Clock Input (LOW to
HIGH, edge triggered)
10
GND
Ground (0V)
20
V
CC
Positive Supply Voltage
PIN DESCRIPTION (HCT574)
PIN No
SYMBOL
NAME AND FUNCTION
1
OE
3 State output Enable
Input (Active LOW)
2, 3, 4, 5,
6, 7, 8, 9
D0 to D7
Data Inputs
12, 13, 14,
15, 16, 17,
18, 19
Q0 to Q7
3 State outputs
11
CLOCK
Clock Input (LOW to
HIGH, edge triggered)
10
GND
Ground (0V)
20
V
CC
Positive Supply Voltage
IEC LOGIC SYMBOLS
HCT574
HCT564
M54/M74HCT564/574
2/13
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
-0.5 to +7
V
V
I
DC Input Voltage
-0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage
-0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
20
mA
I
OK
DC Output Diode Current
20
mA
I
O
DC Output Source Sink Current Per Output Pin
35
mA
I
CC
or I
GND
DC V
CC
or Ground Current
70
mA
P
D
Power Dissipation
500 (*)
mW
T
stg
Storage Temperature
-65 to +150
o
C
T
L
Lead Temperature (10 sec)
300
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
(*) 500 mW:
65
o
C derate to 300 mW by 10mW/
o
C: 65
o
C to 85
o
C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
4.5 to 5.5
V
V
I
Input Voltage
0 to V
CC
V
V
O
Output Voltage
0 to V
CC
V
T
op
Operating Temperature: M54HC Series
M74HC Series
-55 to +125
-40 to +85
o
C
o
C
t
r
, t
f
Input Rise and Fall Time (V
CC
= 4.5 to 5.5V)
0 to 500
ns
M54/M74HCT564/574
4/13
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