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54148 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 8-3 Line Priority Encoder - National Semiconductor

भाग संख्या 54148
समारोह 8-3 Line Priority Encoder
मैन्युफैक्चरर्स National Semiconductor 
लोगो National Semiconductor लोगो 
पूर्व दर्शन
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<?=54148?> डेटा पत्रक पीडीएफ

54148 pdf
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 VCC a1 5V
b0 5 to VCC a0 5V
g20 mA
g25 mA
g50 mA
b65 C to a150 C
600 mW
500 mW
Lead Temperature (TL)
(Soldering 10 sec )
260 C
Operation Conditions
Min Max Units
Supply Voltage (VCC)
DC Input or Output Voltage
2
0
(VIN VOUT)
Operating Temperature Range (TA)
MM74HC
b40
6
VCC
a85
V
V
C
MM54HC
b55 a125 C
Input Rise or Fall Times
(tr tf)
VCC e 2 0V
VCC e 4 5V
VCC e 6 0V
1000
500
400
ns
ns
ns
DC Electrical Characteristics (Note 4)
Symbol
Parameter
Conditions
74HC
54HC
VCC TA e 25 C TA e b40 to 85 C TA e b55 to 125 C Units
Typ Guaranteed Limits
VIH Minimum High Level
Input Voltage
2 0V
4 5V
6 0V
15
3 15
42
15
3 15
42
15 V
3 15 V
42 V
VIL Maximum Low Level
Input Voltage
2 0V
4 5V
6 0V
05
1 35
18
05
1 35
18
05 V
1 35 V
18 V
VOH
Minimum High Level VIN e VIH or VIL
Output Voltage
lIOUTl s 20 mA
2 0V 2 0 1 9
4 5V 4 5 4 4
6 0V 6 0 5 9
19
44
59
19 V
44 V
59 V
VIN e VIH or VIL
lIOUTl s 4 0 mA
lIOUTl s 5 2 mA
4 5V 4 7 3 96
6 0V 5 2 5 48
VOL Maximum Low Level VIN e VIH or VIL
Output Voltage
lIOUTl s 20 mA
2 0V 0 0 1
4 5V 0 0 1
6 0V 0 0 1
3 84
5 34
01
01
01
37 V
52 V
01 V
01 V
01 V
VIN e VIH or VIL
lIOUTl s 4 0 mA
lIOUTl s 5 2 mA
4 5V 0 2 0 26
6 0V 0 2 0 26
IIN Maximum Input VIN e VCC or GND 6 0V
Current
g0 1
0 33
0 33
g1 0
04
04
g1 0
V
V
mA
ICC Maximum Quiescent VIN e VCC or GND 6 0V
Supply Current
IOUT e 0 mA
80
80
160 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 For a power supply of 5V g10% the worst case output voltages (VOH and VOL) occur for HC at 4 5V Thus the 4 5V values should be used when designing
with this supply Worst case VIH and VIL occur at VCC e 5 5V and 4 5V respectively (The VIH value at 5 5V is 3 85V ) The worst case leakage current (IIN ICC and
IOZ) occur for CMOS at the higher voltage and so the 6 0V values should be used
VIL limits are currently tested at 20% of VCC The above VIL specification (30% of VCC) will be implemented no later than Q1 CY’89
2

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