DUAL RS-232 TRANSMITTER/
RECEIVER AND POWER SUPPLY
TC232
ABSOLUTE MAXIMUM RATINGS*
V
CC
............................................................................. +6V
V
+
........................................................................... +12V
V
–
........................................................................... +12V
Input Voltages
T1
IN
, T2
IN
.................................... –0.3 to (V
CC
+0.3V)
R1
IN
, R2
IN
.........................................................
±30V
Output Voltages
T1
OUT
, T2
OUT
...................... (V
+
+0.3V) to (V
–
–0.3V)
R1
OUT
, R2
OUT
.............................. –0.3 to (V
CC
+0.3V)
Short Circuit Duration
V
+
.................................................................... 30sec
V
–
.................................................................... 30sec
T1
OUT
, T2
OUT
.......................................... Continuous
Storage Temperature Range .................. -65°C to +150°C
Package Power Dissipation (T
A
≤
70°C)
CerDIP ............................................................890mW
Derate 9.5 mW/°C Above +70°C
Plastic DIP ......................................................840mW
Derate 7 mW/°C Above +70°C
Small Outline (SOIC) ...................................... 760mW
Derate 7 mW/°C Above +70°C
*Static-sensitive device. Unused devices must be stored in conductive
material. Protect devices from static discharge and static fields.
Stresses above those listed under "Absolute Maximum Ratings" may
cause permanent damage to the device. These are stress ratings only
and functional operation of the device at these or any other conditions
above those indicated in the operation sections of the specifications is
not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS:
V
CC
= 5V
±10%,
T
A
= operating temperature range, test circuit unless
otherwise noted.
Parameter
Output Voltage Swing
Power Supply Current
Input Logic Threshold Low
Input Logic Threshold High
Logic Pull-Up Current
RS-232 Input Voltage Operating Range
RS-232 Input Threshold Low
RS-232 Input Threshold High
RS-232 Input Hysteresis
RS-232 Input Resistance
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
Propagation Delay
Instantaneous Slew Rate
Transition Region Slew Rate
Test Conditions
T1
OUT
, T2
OUT
Loaded With
3 kΩ to Ground
T1
IN
, T2
IN
T1
IN
, T2
IN
T1
IN
, T2
IN
= 0V
V
CC
= 5V
V
CC
= 5V
T
A
= +25°C, V
CC
= 5V
I
OUT
= 3.2 mA
I
OUT
= – 1 mA
RS-232 to TTL or TTL to RS-232
C
L
= 10 pF, R
L
= 3 kΩ to 7 kΩ,
T
A
= +25°C (Note 1)
R
L
= 3 kΩ, C
L
= 2500 pF
Measured From +3V to – 3V
or –3V to +3V
V
CC
= V
+
= V
–
= 0V, V
OUT
=
±2V
Min
±5
—
—
2
—
– 30
0.8
—
0.2
3
—
3.5
—
—
—
Typ
±9
5
—
—
15
—
1.2
1.7
0.5
5
—
—
0.5
—
3
Max
±10
10
0.8
—
200
+30
—
2.4
1
7
0.4
—
—
30
—
Unit
V
mA
V
V
µA
V
V
V
V
kΩ
V
V
µsec
V/µsec
V/µsec
Output Resistance
RS-232 Output
Short-Circuit Current
NOTE 1.
Sample tested.
300
—
—
±10
—
—
Ω
mA
2
TC232-6 10/21/96
© 2001 Microchip Technology Inc.
DS21396A
MICROCHIP [ MICROCHIP TECHNOLOGY ]
