SGS Thomson Microelectronics M74HCT574, M74HCT564 Datasheet
OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT
HCT564 INVERTING - HCT574 NONINVERTING
.HIGH SPEED
f
= 62 MHz (TYP.) AT VCC=5V
MAX
.LOWPOWER DISSIPATION
ICC=4µA(MAX.) AT TA=25°C
.COMPATIBLE WITH TTL OUTPUTS
VIH= 2V (MIN.) VIL= 0.8V (MAX)
.OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
.SYMMETRICALOUTPUT IMPEDANCE
IOL=IOH= 6 mA (MIN.)
.BALANCEDPROPAGATION DELAYS
t
PLH=tPHL
.PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS564/574
DESCRIPTION
The M54/74HCT564 and M54HCT574 are high
speed CMOS OCTALD-TYPEFLIPFLOPWITH3STATEOUTPUTSfabricatedinsilicongateC2MOS
technology. They have the same high speed performance of LSTTL combined with true CMOSlow
power comsuption.These 8-bit D-type flip-flops are
controlled byaclockinput(CK)and anouputenable
input(OE).Onthepositivetransitionoftheclock,the
Qoutputswillbesettothelogicstatethatweresetup
at the D inputs (HCT574) or their complements
(HCT564).
While the OEinput is low, the eight outputs will be
in a normal logic state (high or low logic level), and
while highlevel, theoutputs willbe ina high impedancestate.The outputcontrol does notaffectthein-
M54/74HCT564
M54/74HCT574
B1R
(PlasticPackage)
M1R
(MicroPackage)
ORDER CODES :
M54HCTX XX F1R M74HCTX XXM1 R
M7 4HCTXXXB1 R M7 4HCTXXXC1R
ternaloperationofflip-flops. Thatis, theolddatacan
be retained or the new data can be entered even
while the outputs are off. The application engineer
has achoice of combinationof inverting and non-inverting outputs. The 3-state output configuration
and the wide choice of outline make bus-organized
systemssimple.Allinputs areequipped withprotection circuits against static discharge and transient
excessvoltage. Thisintegrated circuithas inputand
output characteristics that are fully compatiblewith
54/74 LSTTL logic families. M54/74HCT devices
are designed to directly interface HSC2MOS systems with TTL and NMOS components. They are
also plugin replacements for LSTTL devices giving
a reduction ofpower consumption.
F1R
(CeramicPackage)
C1R
(Chip Carrier)
PIN CONNECTION (top view)
HCT564 HCT574 HCT564 HCT574
September 1993
1/13
M54/M74HCT564/574
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
12, 13, 14,
15, 16, 17,
18, 19
11 CLOCK Clock Input (LOW to
10 GND Ground (0V)
20 V
D0 to D7 Data Inputs
Q0 to Q7 3 State outputs
HIGH, edge triggered)
CC
Positive Supply Voltage
IEC LOGIC SYMBOLS
PIN DESCRIPTIO N (HC T574)
PIN No SYMBOL NAME AND FUNCTION
1 OE 3 State output Enable
Input (Active LOW)
2, 3, 4, 5,
6, 7, 8, 9
12, 13, 14,
15, 16, 17,
18, 19
11 CLOCK Clock Input (LOW to
10 GND Ground (0V)
20 V
D0 to D7 Data Inputs
Q0 to Q7 3 State outputs
HIGH, edge triggered)
CC
HCT574HCT564
Positive Supply Voltage
2/13
TRUTH TABLE
OE CK D Q (HCT574) Q (HCT564)
HXXZZ
L X NO CHANGE NO CHANGE
LLLH
LHHL
LOGIC DIAGRAMS
HCT574
M54/M74HCT564/574
INPUTS OUTPUTS
HCT564
3/13
M54/M74HCT564/574
ABSOLU TE MAXIMU M R AT I NG S
Symbol Parameter Value Unit
V
CC
V
V
O
I
IK
I
OK
I
O
I
or I
CC
P
D
T
stg
T
AbsoluteMaximumRatingsarethosevaluesbeyondwhichdamage tothedevicemayoccur.Functionaloperationunder theseconditionisnotimplied.
(*)500 mW:≅ 65oC derateto 300 mW by 10mW/oC: 65oCto85oC
RECO MM ENDED O PERAT IN G C O NDI TIONS
Symbol Parameter Value Unit
V
CC
V
I
V
O
T
op
t
r,tf
Supply Voltage -0.5 to +7 V
DC Input Voltage -0.5 to VCC+ 0.5 V
I
DC Output Voltage -0.5 to VCC+ 0.5 V
DC Input Diode Current ± 20 mA
DC Output Diode Current ± 20 mA
DC Output Source Sink Current Per Output Pin ± 35 mA
DC VCCor Ground Current ± 70 mA
GND
Power Dissipation 500 (*) mW
Storage Temperature -65 to +150
Lead Temperature (10 sec) 300
L
Supply Voltage 4.5 to 5.5 V
Input Voltage 0 to V
Output Voltage 0 to V
Operating Temperature: M54HC Series
M74HC Series
CC
CC
-55 to +125
-40 to +85
Input Rise and Fall Time (VCC= 4.5 to 5.5V) 0 to 500 ns
o
C
o
C
V
V
o
C
o
C
4/13
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