SGS Thomson Microelectronics M74HC4078 Datasheet
.HIGH SPEED
tPD= 13 ns(TYP.) AT VCC=5V
.LOWPOWERDISSIPATION
ICC=1µA(MAX.) AT TA=25°C
.HIGH NOISEIMMUNITY
V
NIH=VNIL
=28%VCC(MIN.)
.OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.SYMMETRICALOUTPUT IMPEDANCE
|IOH|=IOL=4 mA(MIN.)
.BALANCEDPROPAGATION DELAYS
t
PLH=tPHL
.WIDE OPERATINGVOLTAGE RANGE
VCC(OPR)= 2V TO6 V
.PIN ANDFUNCTION COMPATIBLE
WITH 4078B
DESCRIPTION
M54HC4078
M74HC4078
8 INPUT NOR/ORGATE
B1R
(PlasticPackage)
M1R
(MicroPackage)
ORDER CODES :
M54HC 4078F1R M74H C4078M1R
M74HC 4078B1R M74HC4 078C1R
F1R
(CeramicPackage)
C1R
(Chip Carrier)
The M54/74HC4078 is a high speed CMOS 8
INPUT NOR/OR GATE fabricated in silicon gate
C2MOS technology. It has the same high speed
performance of LSTTL combined with true CMOS
low powerconsumption.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN CONNECTIONS(top view)
NC =
No Internal
Connection
October 1992
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M54/M74HC4078
TRUTH TABLE
INPUTS
ALL INPUTS ”L” H L
OTHER POSSIBILITIES L H
OUTPUTS
XY
PIN DESC RIPTION
PIN No SYMBOL NAME AND FUNCTION
2, 3, 4, 5,
A to H Data Inputs
9, 10, 11, 12
1, 13 Y, X Data Outputs
7 GND Ground (0V)
14 V
CC
Positive Supply Voltage
SCHEM ATIC CIR CUIT
IEC LOGIC SYMBOL
ABSOLU TE M AXIMU M R AT INGS
Symbol Parameter Value Unit
V
CC
V
V
O
I
IK
I
OK
I
O
or I
I
CC
P
D
T
stg
T
L
AbsoluteMaximumRatingsarethose valuesbeyond whichdamage to thedevice mayoccur.Functional operation under these conditionisnotimplied.
(*)500 mW: ≅ 65oC derateto300 mWby 10mW/oC: 65oCto85oC
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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 ± 25 mA
DC VCCor Ground Current ± 50 mA
GND
Power Dissipation 500 (*) mW
Storage Temperature -65 to +150
Lead Temperature (10sec) 300
o
C
o
C
M54/M74HC4078
RECO MM ENDED OPERAT I N G CO NDI TI O NS
Symbol Parameter Value Unit
V
V
V
T
t
r,tf
DC SPECIFICATIONS
Symbol Parameter
V
IH
V
V
OH
V
OL
I
I
CC
Supply Voltage 2 to 6 V
CC
Input Voltage 0 to V
I
Output Voltage 0 to V
O
Operating Temperature: M54HC Series
op
M74HC Series
CC
CC
-55 to +125
-40 to +85
Input Rise and Fall Time VCC= 2 V 0 to 1000 ns
V
= 4.5 V 0 to 500
CC
V
= 6 V 0 to 400
CC
Test Conditions Value
V
(V)
CC
=25oC
T
A
54HC and 74HC
-40 to 85oC
74HC
-55 to 125oC
Min. Typ. Max. Min. Max. Min. Max.
High Level Input
Voltage
2.0 1.5 1.5 1.5
4.5 3.15 3.15 3.15
6.0 4.2 4.2 4.2
Low Level Input
IL
Voltage
2.0 0.5 0.5 0.5
4.5 1.35 1.35 1.35
6.0 1.8 1.8 1.8
High Level
Output Voltage
Low Level Output
Voltage
Input Leakage
I
Current
Quiescent Supply
2.0
V
=
I
4.5 4.4 4.5 4.4 4.4
6.0 5.9 6.0 5.9 5.9
4.5 I
6.0 I
2.0
4.5 0.0 0.1 0.1 0.1
6.0 0.0 0.1 0.1 0.1
4.5 I
6.0 I
6.0
IO=-20 µA
V
IH
or
V
IL
=-4.0 mA 4.18 4.31 4.13 4.10
O
=-5.2 mA 5.68 5.8 5.63 5.60
O
V
=
I
IO=20µA
V
IH
or
V
IL
= 4.0 mA 0.17 0.26 0.33 0.40
O
= 5.2 mA 0.18 0.26 0.33 0.40
O
VI=VCCor GND ±0.1 ±1 ±1 µA
1.9 2.0 1.9 1.9
0.0 0.1 0.1 0.1
6.0 VI=VCCor GND 1 10 20 µA
Current
54HC
V
V
o
C
o
C
Unit
V
V
V
V
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