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MC145406 Datasheet, PDF (3/12 Pages) NXP Semiconductors – EIA-232-D/V.28 driver/receiver | |||
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ELECTRICAL SPECIFICATIONS (Voltage polarities referenced to GND = 0 V, VCC = + 5 V ± 5%, TA = â 40 to + 85°C)
Characteristic
Symbol
Min
Typ
Max
Unit
Digital Input Voltage
Logic 0
Logic 1
Input Current
VDI1âDI3 = VCC
DI1âDI3
VIL
â
VIH
2.0
DI1âDI3
Iin
â
V
â
0.8
â
â
â
± 1.0
µA
Output High Voltage (VDI1â3 = Logic 0, RL = 3.0 kâ¦)
Tx1âTx3 VOH
V
VDD = + 5.0 V, VSS = â 5.0 V
3.5
3.9
â
VDD = + 6.0 V, VSS = â 6.0
4.3
4.7
â
VDD = + 12.0 V, VSS = â 12.0 V
9.2
9.5
â
Output Low Voltage* (VDI1â3 = Logic 1, RL = 3.0 kâ¦)
Tx1âTx3 VOL
V
VDD = + 5.0 V, VSS = â 5.0 V
â 4.0
â 4.3
â
VDD = + 6.0 V, VSS = â 6.0 V
â 4.5
â 5.2
â
VDD = + 12.0 V, VSS = â 12.0 V
â 10.0
â 10.3
â
Off Source Resistance (Figure 1)
VDD = VSS = GND = 0 V, VTx1âTx3 = ± 2.0 V
Tx1âTx3
300
â
â
â¦
Output ShortâCircuit Current (VDD = + 12.0 V, VSS = â 12.0 V) Tx1âTx3
ISC
mA
Tx1âTx3 shorted to GND**
â
± 22
± 60
Tx1âTx3 shorted to ± 15.0 V***
â
± 60
± 100
* The voltage specifications are in terms of absolute values.
** Specification is for one Tx output pin to be shorted at a time. Should all three driver outputs be shorted simultaneously, device power dissipation
limits will be exceeded.
*** This condition could exceed package limitations.
SWITCHING CHARACTERISTICS (VCC = + 5 V ± 5%, TA = â 40 to + 85°C; See Figures NO TAG and NO TAG)
Drivers
Characteristic
Symbol
Min
Typ
Max
Propagation Delay Time
LowâtoâHigh
HighâtoâLow
Tx1âTx3
RL = 3 kâ¦, CL = 50 pF tPLH
â
tPHL
RL = 3 k⦠CL = 50 pF
â
300
500
300
500
Output Slew Rate
Tx1âTx3
SR
Minimum Load
RL = 7 kâ¦, CL = 0 pF, VDD = + 6 to + 12 V, VSS = â 6 to â 12 V
â
±9
± 30
Maximum Load
RL = 3 kâ¦, CL = 2500 pF
VDD = + 12 V, VSS = â 12 V
VDD = + 5 V, VSS = â 5 V
4
â
â
â
â
â
Receivers (CL = 50 pF)
Propagation Delay Time
LowâtoâHigh
HighâtoâLow
Output Rise Time
Output Fall Time
Characteristic
Symbol
Min
Typ
Max
DO1âDO3
tPLH
â
150
425
tPHL
â
DO1âDO3
tr
â
DO1âDO3
tf
â
150
425
250
400
40
100
Unit
ns
V/µs
Unit
ns
ns
ns
MOTOROLA
MC145406
3
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