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MC145406 Datasheet, PDF (3/12 Pages) NXP Semiconductors – EIA-232-D/V.28 driver/receiver
ELECTRICAL SPECIFICATIONS (Voltage polarities referenced to GND = 0 V, VCC = + 5 V ± 5%, TA = – 40 to + 85°C)
Characteristic
Symbol
Min
Typ
Max
Unit
Digital Input Voltage
Logic 0
Logic 1
Input Current
VDI1–DI3 = VCC
DI1–DI3
VIL
—
VIH
2.0
DI1–DI3
Iin
—
V
—
0.8
—
—
—
± 1.0
µA
Output High Voltage (VDI1–3 = Logic 0, RL = 3.0 kΩ)
Tx1–Tx3 VOH
V
VDD = + 5.0 V, VSS = – 5.0 V
3.5
3.9
—
VDD = + 6.0 V, VSS = – 6.0
4.3
4.7
—
VDD = + 12.0 V, VSS = – 12.0 V
9.2
9.5
—
Output Low Voltage* (VDI1–3 = Logic 1, RL = 3.0 kΩ)
Tx1–Tx3 VOL
V
VDD = + 5.0 V, VSS = – 5.0 V
– 4.0
– 4.3
—
VDD = + 6.0 V, VSS = – 6.0 V
– 4.5
– 5.2
—
VDD = + 12.0 V, VSS = – 12.0 V
– 10.0
– 10.3
—
Off Source Resistance (Figure 1)
VDD = VSS = GND = 0 V, VTx1–Tx3 = ± 2.0 V
Tx1–Tx3
300
—
—
Ω
Output Short–Circuit Current (VDD = + 12.0 V, VSS = – 12.0 V) Tx1–Tx3
ISC
mA
Tx1–Tx3 shorted to GND**
—
± 22
± 60
Tx1–Tx3 shorted to ± 15.0 V***
—
± 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 = – 40 to + 85°C; See Figures NO TAG and NO TAG)
Drivers
Characteristic
Symbol
Min
Typ
Max
Propagation Delay Time
Low–to–High
High–to–Low
Tx1–Tx3
RL = 3 kΩ, CL = 50 pF tPLH
—
tPHL
RL = 3 kΩ CL = 50 pF
—
300
500
300
500
Output Slew Rate
Tx1–Tx3
SR
Minimum Load
RL = 7 kΩ, CL = 0 pF, VDD = + 6 to + 12 V, VSS = – 6 to – 12 V
—
±9
± 30
Maximum Load
RL = 3 kΩ, CL = 2500 pF
VDD = + 12 V, VSS = – 12 V
VDD = + 5 V, VSS = – 5 V
4
—
—
—
—
—
Receivers (CL = 50 pF)
Propagation Delay Time
Low–to–High
High–to–Low
Output Rise Time
Output Fall Time
Characteristic
Symbol
Min
Typ
Max
DO1–DO3
tPLH
—
150
425
tPHL
—
DO1–DO3
tr
—
DO1–DO3
tf
—
150
425
250
400
40
100
Unit
ns
V/µs
Unit
ns
ns
ns
MOTOROLA
MC145406
3