MC145408 Motorola, MC145408 Datasheet - Page 3

• Manufacturer Part Number: MC145408
• Description: (MC145403 - MC145408) DRIVER / RECEIVERS
• Manufacturer: Motorola

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DataSheet
4
* This is the range of input voltages as specified by EIA–232–E to cause a receiver to be in the high or low.
MOTOROLA
U
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND, except where noted)
DC ELECTRICAL CHARACTERISTICS
RECEIVER ELECTRICAL SPECIFICATIONS
(Voltage polarities referenced to GND = 0 V, V DD = + 12 V, V SS = – 12 V, T A = – 40 to + 85 C, V CC = + 5 V,
DC Supply Voltage (V DD
Input Voltage Range
DC Current Drain per Pin
Power Dissipation
Operating Temperature Range
Storage Temperature Range
DC Supply Voltage
Quiescent Supply Current (Outputs Unloaded, Inputs Low)
Input Turn–On Threshold
Input Turn–Off Threshold
Input Threshold Hysteresis
Input Resistance
High Level Output Voltage
Low Level Output Voltage
.com
V DO = V OL
V DO = V OH
(V SS – 15 V)
V Rx = – 3 to – 25 V* (DO1 – DO n )
V Rx = + 3 to + 25 V* (DO1 – DO n )
= V on – V off
Rating
V Rx1 – Rx n
V CC )
Rx1 – Rx n
DI1 – DI n
Characteristic
Parameter
(V DD + 15 V)
Symbol
V DD
V SS
V CC
T stg
V IR
P D
T A
I
(All polarities referenced to GND = 0 V, T A = – 40 to + 85 C)
V SS – 15 to V DD + 15
0.5 to V CC + 15
– 0.5 to + 13.5
+ 0.5 to – 13.5
– 0.5 to + 6.0
– 85 to + 150
– 40 to + 85
I out = – 1.0 mA
Value
I out = – 20 A
V DD = + 12 V
V SS = – 12 V
I out = + 2 mA
I out = + 4 mA
V CC = + 5 V
1
00
Rx1 – Rx n
Rx1 – Rx n
Unit
Symbol
Symbol
mA
W
V
V
MC145403 MC145404 MC145405 MC145408
V hys
V OH
C
C
V DD
V SS
V CC
V OL
I DD
I CC
V on
V off
I SS
R in
inputs and outputs against damage due to high
static voltages or electric fields; however, it is
advised that normal precautions be taken to
avoid applications of any voltage higher than
maximum rated voltages to this high imped-
ance circuit.
V out and V in be constrained to the ranges
described as follows:
outputs are tied off to an appropriate logic
voltage level (e.g., either GND or V CC for DI,
and GND for Rx).
– 4.5
1.35
0.75
Min
Min
4.5
4.5
0.6
4.9
3.8
This device contains circuitry to protect the
For proper operation it is recommended that
Reliability of operation is enhanced if unused
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—
—
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3
Digital I/O: Driver Inputs (DI):
Receiver Outputs (DO):
EIA–232 I/O: Driver Outputs (Tx):
Receiver Inputs (Rx):
(GND
(GND
(V SS
V SS – 15 V
+ 15 V).
– 5 to – 12
5 to 12
– 400
V Tx1 – Tx n
0.02
V DI
V DO
Typ
425
110
Typ
10%)
1.8
0.8
5.4
4.9
4.3
0.5
5
1
V Rx1 – Rx n
V CC ).
V CC ).
– 13.2
– 600
Max
13.2
V DD ).
Max
2.35
1.25
635
200
5.5
0.5
0.7
—
—
—
7
V DD
Unit
Unit
k
V
V
V
V
V
V
A
3