M54/74HC374
M54/74HC534
March1993
HC374 NON INVERTING - HC534 INVERTING
OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R M74HCXXXM1R
M74HCXXXB1R M74HCXXXC1R
F1R
(CeramicPackage)
M1R
(MicroPackage) C1R
(Chip Carrier)
PIN CONNECTION (top view)
.HIGH SPEED
fMAX = 77 MHz (TYP.) AT VCC =5V
.LOWPOWER DISSIPATION
ICC =4µA(MAX.) AT TA=25°C
.HIGH NOISEIMMUNITY
VNIH =V
NIL =28%V
CC (MIN)
.OUTPUTDRIVE CAPABILITY
15 LSTTLLOADS
.SYMMETRICAL OUTPUT IMPEDANCE
IOL =IOH= 6 mA (MIN.)
.BALANCEDPROPAGATION DELAYS
tPLH =tPHL
.WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO6 V
.PIN ANDFUNCTION COMPATIBLE
WITH 54/74LS374/534
DESCRIPTION
The M54/74HC374, M54/74HC534, arehigh speed
CMOSOCTAL D-TYPEFLIPFLOPWITH3-STATE
OUTPUTS fabricated with in silicon gate C2MOS
technology. They have the same high speed per-
formance of LSTTLcombined with true CMOS low
power comsuption. These8-bit D-type flip-flops are
controlled by aclockinput(CK) and anouputenable
input(OE).On thepositivetransition oftheclock,the
Qoutputswillbesettothelogicstatethatweresetup
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
whilehigh level, the outputs willbe in a high imped-
ance state.The outputcontrol does notaffect thein-
ternaloperation offlip-flops.That is, theolddatacan
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 andnon-in-
vertingoutputs. The HC374and 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-
chargeand transient excess voltage.
1/13
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HC374)
PIN No SYMBOL NAME AND FUNCTION
1 OE 3 State output Enable
Input (Active LOW)
2, 5, 6, 9,
12, 15, 16,
19
Q0 to Q7 3 State outputs
3, 4, 7, 8,
13, 14, 17,
18
D0 to D7 Data Inputs
11 CLOCK Clock Input (LOW to
HIGH, edge triggered)
10 GND Ground (0V)
20 VCC Positive Supply Voltage
PIN DESCRIPTION (HC534)
PIN No SYMBOL NAME AND FUNCTION
1 OE 3 State output Enable
Input (Active LOW)
2, 5, 6, 9,
12, 15, 16,
19
Q0 to Q7 3 State outputs
3, 4, 7, 8,
13, 14, 17,
18
D0 to D7 Data Inputs
11 CLOCK Clock Input (LOW to
HIGH, edge triggered)
10 GND Ground (0V)
20 VCC Positive Supply Voltage
IEC LOGIC SYMBOLS
HC374 HC534
M54/M74HC374/534
2/13
TRUTH TABLE
INPUTS OUTPUTS
OE CK D Q (HC374) Q (HC534)
HXXZZ
L X NO CHANGE NO CHANGE
LLLH
LHHL
LOGIC DIAGRAMS
M54/M74HC374/534
3/13
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VCC Supply Voltage -0.5 to +7 V
VIDC Input Voltage -0.5 to VCC + 0.5 V
VODC Output Voltage -0.5 to VCC + 0.5 V
IIK DC Input Diode Current ±20 mA
IOK DC Output Diode Current ±20 mA
IODC Output Source Sink Current Per Output Pin ±35 mA
ICC or IGND DC VCC or Ground Current ±70 mA
PDPower Dissipation 500 (*) mW
Tstg Storage Temperature -65 to +150 oC
TLLead Temperature (10 sec) 300 oC
Absolute MaximumRatingsarethose values beyond whichdamage tothe devicemayoccur. Functional operationunder these conditionisnotimplied.
(*) 500 mW: 65oC derate to 300mW by 10mW/oC: 65 oCto85o
C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
VCC Supply Voltage 2 to 6 V
VIInput Voltage 0 to VCC V
VOOutput Voltage 0 to VCC V
Top Operating Temperature: M54HC Series
M74HC Series -55 to +125
-40 to +85
oC
oC
tr,t
fInput Rise and Fall Time VCC = 2 V 0 to 1000 ns
VCC = 4.5 V 0 to 500
VCC = 6 V 0 to 400
M54/M74HC374/534
4/13
DC SPECIFICATIONS
Symbol Parameter
Test Conditions Value
Unit
VCC
(V)
TA=25o
C
54HC and 74HC -40 to 85 oC
74HC -55 to 125 oC
54HC
Min. Typ. Max. Min. Max. Min. Max.
VIH High Level Input
Voltage 2.0 1.5 1.5 1.5 V
4.5 3.15 3.15 3.15
6.0 4.2 4.2 4.2
VIL Low Level Input
Voltage 2.0 0.5 0.5 0.5 V
4.5 1.35 1.35 1.35
6.0 1.8 1.8 1.8
VOH High Level
Output Voltage 2.0 VI=
VIH
or
VIL
IO=-20 µA1.9 2.0 1.9 1.9
V
4.5 4.4 4.5 4.4 4.4
6.0 5.9 6.0 5.9 5.9
4.5 IO=-6.0 mA 4.18 4.31 4.13 4.10
6.0 IO=-7.8 mA 5.68 5.8 5.63 5.60
VOL Low Level Output
Voltage 2.0 VI=
VIH
or
VIL
IO=20µA0.0 0.1 0.1 0.1
V
4.5 0.0 0.1 0.1 0.1
6.0 0.0 0.1 0.1 0.1
4.5 IO= 6.0 mA 0.17 0.26 0.33 0.40
6.0 IO= 7.8 mA 0.18 0.26 0.33 0.40
IIInput Leakage
Current 6.0 VI=V
CC or GND ±0.1 ±1±1µA
IOZ 3 State Output
Off State Current 6.0 VI=V
IH or VIL
VO=V
CC or GND ±0.5 ±5.0 ±10 µA
ICC Quiescent Supply
Current 6.0 VI=V
CC or GND 4 40 80 µA
M54/M74HC374/534
5/13
AC ELECTRICAL CHARACTERISTICS (CL=50pF,Inputt
r=t
f=6ns)
Symbol Parameter
Test Conditions Value
Unit
VCC
(V) CL
(pF)
TA=25o
C
54HC and 74HC -40 to 85 oC
74HC -55 to 125 oC
54HC
Min. Typ. Max. Min. Max. Min. Max.
tTLH
tTHL Output Transition
Time 2.0 50 25 60 75 90 ns
4.5 7121518
6.0 6101315
t
PLH
tPHL Propagation
Delay Time
(CLOCK - Q, Q)
2.0 50 45 140 175 210 ns
4.5 15 28 35 42
6.0 13 24 30 36
2.0 150 60 190 240 285 ns
4.5 20 38 48 57
6.0 17 32 41 48
tPLZ
tPHZ 3 State Output
Enable Time 2.0 50 RL=1K39 135 170 205 ns
4.5 13 27 34 41
6.0 11 23 29 35
2.0 150 RL=1K54 185 230 280 ns
4.5 18 37 46 56
6.0 15 31 39 48
fMAX Maximum CLock
Frequency 2.0 50 6.2 18 5 4.2 ns
4.5 31 75 25 21
6.0 37 90 30 25
tW(L)
tW(H) Minimum Pulse
Width (CLOCK) 2.0 50 15 75 95 110 ns
4.5 6151922
6.0 6131619
t
s
Minimum Set-up
Time 2.0 50 25 75 95 110 ns
4.5 6151922
6.0 4131619
t
h
Minimum Hold
Time 2.0 50 000
ns
4.5 0 0 0
6.0 0 0 0
CIN Input Capacitance 5 10 10 10 pF
COUT Out put
Capacitance 10 pF
CPD (*) Power Dissipation
Capacitance 47 pF
(*) CPD isdefined as thevalue of the IC’sinternal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer toTest Circuit).Average operting current can beobtained by the followingequation. ICC(opr)= CPD VCC fIN +I
CC/8 (per FLIP-FLOP) and CPD
when N pcs of FLIP-FLOP operate, can be gained by following equation: CPD (TOTAL)= 30 +17 x N (pF)
M54/M74HC374/534
6/13
SWITCHING CHARACTERISTICS TEST WAVEFORM
tPLZ,t
PZL
The 1Kload resistors should be connected between
outputs and VCC line and the 50pF load capacitors
should be connected between outputsand GND line.
All inputs except OE input should be connected to VCC
line or GND line such that outputs will be in low logic
level while OE input is held low.
tPHZ,t
PZH
The 1Kload resistors and the 50pF load capacitors
should be connected between each output and GND
line.
All inputs except OE input should be connected to VCC
or GND line such that output will be in high logic level
while OE input is held low.
tPLH,t
PHL,t
s
,t
h
,t
wf
MAX
M54/M74HC374/534
7/13
TEST CIRCUIT ICC (Opr.)
INPUTWAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHINGCHARACTERISTICSTEST.
M54/M74HC374/534
8/13
Plastic DIP20 (0.25) MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
a1 0.254 0.010
B 1.39 1.65 0.055 0.065
b 0.45 0.018
b1 0.25 0.010
D 25.4 1.000
E 8.5 0.335
e 2.54 0.100
e3 22.86 0.900
F 7.1 0.280
I 3.93 0.155
L 3.3 0.130
Z 1.34 0.053
P001J
M54/M74HC374/534
9/13
Ceramic DIP20 MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 25 0.984
B 7.8 0.307
D 3.3 0.130
E 0.5 1.78 0.020 0.070
e3 22.86 0.900
F 2.29 2.79 0.090 0.110
G 0.4 0.55 0.016 0.022
I 1.27 1.52 0.050 0.060
L 0.22 0.31 0.009 0.012
M 0.51 1.27 0.020 0.050
N1 4°(min.), 15° (max.)
P 7.9 8.13 0.311 0.320
Q 5.71 0.225
P057H
M54/M74HC374/534
10/13
SO20 MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 2.65 0.104
a1 0.10 0.20 0.004 0.007
a2 2.45 0.096
b 0.35 0.49 0.013 0.019
b1 0.23 0.32 0.009 0.012
C 0.50 0.020
c1 45°(typ.)
D 12.60 13.00 0.496 0.512
E 10.00 10.65 0.393 0.419
e 1.27 0.050
e3 11.43 0.450
F 7.40 7.60 0.291 0.299
L 0.50 1.27 0.19 0.050
M 0.75 0.029
S8°(max.)
P013L
M54/M74HC374/534
11/13
PLCC20 MECHANICAL DATA
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 9.78 10.03 0.385 0.395
B 8.89 9.04 0.350 0.356
D 4.2 4.57 0.165 0.180
d1 2.54 0.100
d2 0.56 0.022
E 7.37 8.38 0.290 0.330
e 1.27 0.050
e3 5.08 0.200
F 0.38 0.015
G 0.101 0.004
M 1.27 0.050
M1 1.14 0.045
P027A
M54/M74HC374/534
12/13
Information furnished is believed to be accurate and reliable.However, SGS-THOMSON Microelectronicsassumes no responsability for the
consequences of use of such information nor for any infringementof patents orother rights of third parties which may results from its use. No
license is granted by implication or otherwiseunder any patent or patent rights of SGS-THOMSON Microelectronics. Specificationsmentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproductsare notauthorized foruse ascritical componentsin life supportdevices orsystems withoutexpress
written approval of SGS-THOMSON Microelectonics.
1994 SGS-THOMSON Microelectronics- All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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M54/M74HC374/534
13/13