TheM54/74HC354is ahighspeed CMOS8-CHANNEL MULTIPLEXER/REGISTER (3-state) fabricated in silicongate C2MOS technology. It has the
same high speed performance of LSTTL combined
with trueCMOS low consumption.
Thisdevicecontains an 8channeldigitalmultiplexer
with an8-bit inputdata registerand a 3-bit address
inputregisterwith 3-state outputs. The one of eight
inputdata will be provided on the Y output pin (noninverted output) and W output pin(inverted output)
determined by the addressdata.
The information at the data inputs (D0 to D7) is
storedin the 8-bit latchat the negative pulse on DC
input. The informationat the address inputs (S0 to
S2) isstored in the 3-bitlatch at the negative pulse
on SCinput. Theseoutputsare disabled to behighimpedance when input G1 is heldhigh, input G2 is
heldhigh orinputG3 is held low.Thisdeviceissuitablefor interfacing withbuslinesin a busorganized
system.
The M54/74HC354 is similar in function to the
M54/74HC356, which has an 8-bit flip-flop as the
data register instead of an 8-bit latch.All inputs are
equipped with protection circuits against static discharge and transientexcess voltage.
Supply Voltage-0.5 to +7V
DC Input Voltage-0.5 to VCC+ 0.5V
I
DC Output Voltage-0.5 to VCC+ 0.5V
DC Input Diode Current± 20mA
DC Output Diode Current± 20mA
DC Output Source Sink Current Per Output Pin± 35mA
DC VCCor Ground Current± 70mA
GND
Power Dissipation500 (*)mW
Storage Temperature-65 to +150
Lead Temperature (10 sec)300
L
Supply Voltage2 to 6V
Input Voltage0 to V
Output Voltage0 to V
Operating Temperature: M54HC Series
M74HC Series
CC
CC
-55 to +125
-40 to +85
Input Rise and Fall TimeVCC= 2 V0 to 1000ns
V
= 4.5 V0 to 500
CC
V
= 6 V0 to 400
CC
o
C
o
C
V
V
o
C
o
C
4/12
Page 5
DC SPECIFICATIONS
SymbolParameter
V
V
V
V
I
I
High Level Input
IH
Voltage
Low Level Input
IL
Voltage
High Level
OH
Output Voltage
Low Level Output
OL
Voltage
I
Input Leakage
I
Current
3 State Output
OZ
Off State Current
Quiescent Supply
CC
Current
M54/M74HC354
Test ConditionsValue
T
=25oC
V
(V)
CC
A
54HC and 74HC
Min.Typ.Max.Min.Max.Min.Max.
2.01.51.51.5
4.53.153.153.15
6.04.24.24.2
2.00.50.50.5
4.51.351.351.35
6.01.81.81.8
2.0
4.54.44.54.44.4
6.05.96.05.95.9
4.5I
6.0I
2.0
4.50.00.10.10.1
6.00.00.10.10.1
4.5I
6.0I
6.0
=
V
I
IO=-20 µA
V
IH
or
V
IL
=-6.0 mA 4.184.314.134.10
O
=-7.8 mA 5.685.85.635.60
O
V
=
I
IO=20µA
V
IH
or
V
IL
= 6.0 mA0.170.260.330.40
O
= 7.8 mA0.180.260.330.40
O
VI=VCCor GND±0.1±1±1µA
6.0VI=VIHor V
1.92.01.91.9
0.00.10.10.1
IL
VO=VCCor GND
6.0 VI=VCCor GND44080µA
-40 to 85oC
74HC
-55 to 125oC
54HC
Unit
±0.5±5.0±10µA
V
V
V
V
5/12
Page 6
M54/M74HC354
AC ELECTRICAL CHARACTERISTICS (CL=50pF,Inputtr=tf=6ns)
Test ConditionsValue
T
=25oC
SymbolParameter
t
t
TLH
THL
Output Transition
Time
V
C
CC
(V)
L
(pF)
2.0
50
4.57121518
A
54HC and 74HC
Min.Typ.Max.Min.Max.Min.Max.
25607590
6.06101315
t
PLH
t
PHL
Propagation
Delay Time
(Dn, DC - Y, W)
2.0
50
4.526425363
83210265315
6.021364554
2.0
150
4.531506375
99250315375
6.025435464
t
t
PLH
PHL
Propagation
Delay Time
(Sn - Y, W)
2.0
50
4.530526578
98260325390
6.025445566
2.0
150
4.535607590
114300375450
6.029516477
t
t
PLH
PHL
Propagation
Delay Time
(SC - Y, W)
2.0
50
4.531546881
102270340405
6.027465869
2.0
150
4.536627893
118310390465
6.031536679
t
t
PZH
PZL
3 State Output
Enable Time
2.0
50R
4.514253138
=1KΩ
L
44125155190
6.012212632
2.0
150 R
4.519334150
=1KΩ
L
60165205250
6.016283543
t
t
PHZ
PLZ
3 State Output
Disable Time
2.0
50RL=1KΩ
4.520313947
42155195235
6.017263340
t
W(L)
Minimum Pulse
Width (DC) (SC)
2.0
50
4.56151922
187595110
6.06131619
Minimum Set-up
t
s
Time (Dn) (Sn)
2.0
50
4.53101315
10506575
6.0391113
t
h
Minimum Hold
Time (Dn) (Sn)
2.0
50
4.5555
6.0555
C
C
PD
Input Capacitance5101010pF
IN
(*)Power Dissipation
77
Capacitance
(*) CPDisdefined asthe value of the IC’s internal equivalent capacitance whichis calculated from the operating current consumption without load.
(RefertoTest Circuit).Average operting current can be obtained bythe followingequation. ICC(opr) = CPD•VCC•fIN+I
-40 to 85oC
74HC
-55 to 125oC
54HC
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
555
ns
pF
CC
6/12
Page 7
TEST CIRCUIT ICC(Opr.)
INPUT WAVEFORMIS THE SAME AS THAT IN CASEOF SWITCHING CHARACTERISTICS TEST.
SWITCHING CHARACTERISTICS TEST WAVEFORM
M54/M74HC354
7/12
Page 8
M54/M74HC354
Plastic DIP20 (0.25) MECHANICAL DATA
DIM.
MIN.TYP.MAX.MIN.TYP.MAX.
a10.2540.010
B1.391.650.0550.065
b0.450.018
b10.250.010
D25.41.000
E8.50.335
e2.540.100
e322.860.900
F7.10.280
I3.930.155
L3.30.130
Z1.340.053
mminch
8/12
P001J
Page 9
Ceramic DIP20 MECHANICAL DATA
M54/M74HC354
DIM.
MIN.TYP.MAX.MIN.TYP.MAX.
A250.984
B7.80.307
D3.30.130
E0.51.780.0200.070
e322.860.900
F2.292.790.0900.110
G0.40.550.0160.022
I1.271.520.0500.060
L0.220.310.0090.012
M0.511.270.0200.050
N14° (min.), 15° (max.)
P7.98.130.3110.320
Q5.710.225
mminch
P057H
9/12
Page 10
M54/M74HC354
SO20 MECHANICAL DATA
DIM.
MIN.TYP.MAX.MIN.TYP.MAX.
A2.650.104
a10.100.200.0040.007
a22.450.096
b0.350.490.0130.019
b10.230.320.0090.012
C0.500.020
c145° (typ.)
D12.6013.000.4960.512
E10.0010.650.3930.419
e1.270.050
e311.430.450
F7.407.600.2910.299
L0.501.270.190.050
M0.750.029
S8°(max.)
mminch
10/12
P013L
Page 11
PLCC20 MECHANICAL DATA
M54/M74HC354
DIM.
MIN.TYP.MAX.MIN.TYP.MAX.
A9.7810.030.3850.395
B8.899.040.3500.356
D4.24.570.1650.180
d12.540.100
d20.560.022
E7.378.380.2900.330
e1.270.050
e35.080.200
F0.380.015
G0.1010.004
M1.270.050
M11.140.045
mminch
P027A
11/12
Page 12
M54/M74HC354
Information furnished is believed to be accurate and reliable.However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such informationnor forany infringementof patents orother rights of third parties which mayresults from its use. No
license is granted by implication or otherwiseunder any patent or patent rights ofSGS-THOMSON Microelectronics. Specificationsmentioned
in this publicationare subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronicsproducts are notauthorizedforuse ascritical componentsinlife support devices orsystems withoutexpress
written approval of SGS-THOMSON Microelectonics.
1994SGS-THOMSON Microelectronics- All RightsReserved
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