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MM54HCT640 Datasheet, PDF (2/4 Pages) National Semiconductor (TI) – Inverting Octal TRI-STATE Transceiver
Absolute Maximum Ratings (Notes 1 2)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage (VCC)
DC Input Voltage (VIN)
DC Output Voltage (VOUT)
Clamp Diode Current (IIK IOK)
DC Output Current per pin (IOUT)
DC VCC or GND Current per pin (ICC)
Storage Temperature Range (TSTG)
Power Dissipation (PD)
(Note 3)
S O Package only
b0 5 to a7 0V
b1 5 to VCCa1 5V
b0 5 to VCCa0 5V
g20 mA
g35 mA
g70 mA
b65 C to a150 C
600 mW
500 mW
Lead Temperature (TL)
(Soldering 10 seconds)
260 C
Operating Conditions
Supply Voltage (VCC)
DC Input or Output Voltage
(VIN VOUT)
Operating Temp Range (TA)
MM74HCT
MM54HCT
Min
45
0
b40
b55
Input Rise or Fall Times
(tr tf)
Max
55
VCC
a85
a125
500
Units
V
V
C
C
ns
DC Electrical Characteristics VCCe5V g10% (unless otherwise specified)
Symbol
Parameter
Conditions
TAe25 C
74HCT
54HCT
TAeb40 to 85 C TAeb55 to 125 C
Typ
Guaranteed Limits
Units
VIH
Minimum High Level
Input Voltage
20
20
20
V
VIL
Maximum Low Level
Input Voltage
08
08
08
V
VOH
Minimum High Level VINeVIH or VIL
Output Voltage
lIOUTle20 mA
VCC VCC-0 1
l l IOUT e6 0mA VCCe4 5V 4 2 3 98
l l IOUT e7 2mA VCCe5 5V 5 2 4 98
VOL
Maximum Low Level VINeVIH or VIL
Voltage
lIOUTle20 mA
0
01
l l IOUT e6 0mA VCCe4 5V 0 2 0 26
l l IOUT e7 2mA VCCe5 5V 0 2 0 26
IIN
Maximum Input
Current
VINeVCC or GND
VIH or VIL
g0 1
IOZ
Maximum TRI-STATE VOUTeVCC or GND
Output Leakage
Enable GeVIH
Current
g0 5
VCC-0 1
3 84
4 84
01
0 33
0 33
g1 0
g5 0
VCC-0 1
V
37
V
47
V
01
V
04
V
04
V
g1 0
mA
g10
mA
ICC
Maximum Quiescent VINeVCC or GND
Supply Current
IOUTe0mA
8
80
160
mA
VINe2 4V or 0 5V
06 10
13
(Note 4)
15
mA
Note 1 Absolute Maximum Ratings are those values beyond which damage to the device may occur
Note 2 Unless otherwise specified all voltages are referenced to ground
Note 3 Power Dissipation temperature derating plastic ‘‘N’’ package b12 mW C from 65 C to 85 C ceramic ‘‘J’’ package b12 mW C from 100 C to 125 C
Note 4 Measured per input All other inputs held at VCC or ground
AC Electrical Characteristics MM54HCT640 MM74HCT640
VCCe5 0V tretfe6 ns TAe25 C (unless otherwise specified)
Symbol
Parameter
Conditions
Typ
Guaranteed
Limits
Units
tPHL tPLH Maximum Output
CLe45 pF
16
20
ns
Propagation Delay
tPZL tPZH Maximum Output
CLe45 pF
29
40
ns
Enable Time
RLe1 kX
tPLZ tPHZ Maximum Output
CLe5 pF
20
25
ns
Disable Time
RLe1 kX
2