The ST202E/ST232E are a 2 driver 2 receiver
devicesdesignedforRS-232andV.28
communications in harsh enviroments. Each
transmitter output and receiver input is protected
against ± 15KV electrostatic discharge (ESD)
shocks. The drivers meet all EIA/TIA-232E and
CCITT V.28 specifications at data rates up to
120Kbps, when loaded in accordance with the
EIA/TIA-232Especification.
The ST202E/232E use a single 5V supply
voltage.
The ST232E operates with four 1µF capacitors,
ST232E
± 15KVESD PROTECTED
5V RS-232 TRANSCEIVER
N
(PlasticPackage)
(Micro Package)
W
(Micro Package Large)T(TSSOPPackage)
while the ST202E operates with four 0.1µF
capacitors, further reducing cost and board
space.
D
ORDERCODES
Typ eTemp erature
Range
ST202ECNST232ECN0 to 70
ST202EBNST232EBN-40 to 85
ST202ECDST232ECD0 to 70
ST202EBDST232EBD-40 to 85
ST202ECDRST232ECDR0 to 70
ST202EBDRST232EBDR-40 to 85
ST202ECWST232ECW0 to 70
ST202EBWST232EBW-40 to 85
ST202ECWRST232ECWR0 to 70
ST202EBWRST232EBWR-40 to 85
ST202ECTRST232ECTR0 to 70
ST202EBTRST232EBTR-40 to 85
April 2000
PackageComments
o
CDIP-1625 parts per tube / 40 tube per box
o
CDIP-1625 parts per tube / 40 tube per box
o
CSO-16 (Tube)50 parts per tube / 20 tube per box
o
CSO-16 (Tube)50 parts per tube / 20 tube per box
o
CSO-16 (Tape & Reel)2500 parts per reel
o
CSO-16 (Tape & Reel)2500 parts per reel
o
CSO-16 Large (Tube)50 parts per tube / 20 tube per box
o
CSO-16 Large (Tube)50 parts per tube / 20 tube per box
o
CSO-16 Large (Tape & Reel)1000 parts per reel
o
CSO-16 Large (Tape & Reel)1000 parts per reel
o
CTSSOP16 (Tape & Reel)2500 parts per reel
o
CTSSOP16 (Tape & Reel)2500 parts per reel
1/12
Page 2
ST202E/ST232E
PIN CONFIGURATION
PIN DESCRIPTION
PIN NoSYMBOLNAM E AND FUNC T I O N
1C
2V+Doubled Voltage Terminal
3C
4C
5C
6V-Inverted Voltage Terminal
7T2
8R2
9R2
10T2
11T1
12R1
13R1
14T1
15GNDGround
16V
+Positive Terminal for the first Charge Pump Capacitor
1
-Negative Terminal for the first Charge Pump Capacitor
1
+Positive Terminal for the second Charge Pump Capacitor
2
-Negative Terminal for the second Charge Pump Capacitor
2
OUT
IN
OUT
IN
IN
OUT
IN
OUT
CC
Second Transmitter Output Voltage
Second Receiver Input Voltage
Second Receiver Output Voltage
Second Transmitter Input Voltage
First Transmitter Input Voltage
First Receiver Output Voltage
First Receiver Input Voltage
First Transmitter Output Voltage
Transmitter Input Voltage Range-0.3 to (V+ + 0.3)V
IN
Receiver Input Voltage Range±30V
IN
Transmitter Output Voltage Range(V- - 0.3) to (V+ + 0.3)V
Receiver Output Voltage Range-0.3 to (VCC+ 0.3)V
Short Circuit Duration on T
Storage Temperature Range-65 to +150
stg
OUT
infinite
o
C
ELECTRICAL CHARACTERISTICS
(C
unlessotherwise specified.TypicalValus are referredto T
SymbolParameterTest Conditio nsValueUnit
= 0.1µF for ST202E,C1-C4=1µF forST232E, VCC=5V±10% TA= -40 to 85oC,
1-C4
=25oC)
A
Min.Typ.M ax.
I
SUPPLYVCC
Power Supply CurrentNo Load,TA=25oC510mA
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C
unlessotherwise specified.TypicalValus are referredto T
SymbolParameterTest Conditio nsValueUnit
Note1:Measured from3Vto-3Vorfrom-3V to3V.
Note2: One trasmitter output isloaded with R
= 0.1µF for ST202E,C1-C4=1µF forST232, VCC=5V±10%, TA= -40 to 85oC,
1-C4
=25oC)
A
Min.Typ.M ax.
V
Output Voltage SwingAll Transmitter outputs are loaded
TOUT
±5±9V
with 3KΩto GND
Logic Pull-Up CurrentTIN=0VtoV
I
V
V
SR
D
TIL
Input Logic Threshold Low0.8V
TIL
Input Logic Threshold High2V
TIH
Transition Slew RateTA=25oC, VCC=5V,
T
Data RateRL=3to7KΩ,CL= 50 to 1000 pF
R
=3to7KΩ,
R
L
= 50 to 1000 pF (Note 1)
C
L
CC
230400Kbits/s
one trasmitter switching
R
Transmitter Output Resistance VCC= V+ = V- = 0V
TOUT
Transmitter Output Short
I
SC
V
OUT
=±2V
300
Circuit Current
Trasmitter Propagation DelayRL=3KΩ,CL= 2500 pF
t
DT
All trasmitter loaded
=3KΩ to7KΩ,CL= 50 to 1000pF
L
10
±
A
µ
3630V/µs
Ω
10
±
2
60mA
±
A
µ
3/12
Page 4
ST202E/ST232E
RECEIVERELECTRICAL CHARACTERISTICS
(C
unlessotherwise specified. TypicalValus are referred to T
SymbolParameterTest Conditio nsValueUnit
= 0.1µF for ST202E,C1-C4=1µF forST232E, VCC=5V±10%, TA= -40 to 85oC,
1-C4
=25oC)
A
Min.Typ.M ax.
V
Receiver Input Voltage
RIN
-3030V
Operating Range
R
V
RS-232 Input ResistanceTA=25oC, VCC=5V357K
RIN
RS-232 Input Logic Threshold
RIL
TA=25oC, VCC= 5 V0.81.2V
Low
V
RS-232 Input Logic Threshold
RIH
TA=25oC, VCC= 5 V1.72.4V
High
V
V
RS-232 Input HysteresisVCC= 5 V0.20.51V
RIHYS
TTL/CMOS Output Voltage
ROL
I
= 3.2mA0.4V
OUT
Low
V
TTL/CMOS Output Voltage
ROH
I
= -1mA3.5VCC-0.4V
OUT
High
Propagation Delay TimeCL=150pF0.510µs
t
dR
Ω
4/12
Page 5
ST202E/ST232E
APPLICATION CIRCUITS
TTL / CMOS INPUTS
(note 1, note2)
C5
1
C1+
+
C1
3
C1-
4
C2+
+
C2
C2-
5
11
IN
T1
IN
T2
10
+5V INPUT
+
Vcc
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO -10V
VOLTAGE
INVERTER
T1
T2
16
C3
T1
T2OUT
+
V+
V-
OUT
2
6
C4
14
7
+10V
-10V
+
RS 232 OUTPUTS
IN
R1
TTL / CMOSOUTPUTS
12
9
R1
R2
OUT
OUT
R1
R2
5K
R2
13
RS 232 INPUTS
IN
8
5K
GND
15
Note1:C
Note2:C
capacitorscanevenbe1 µFones.
1-4
canbecommonorbiasedcapacitors.
1-4
CapacitanceValue (µF)
DEVICESC1C2C3C4C5
ST202E0.10.10.10.10.1
ST232E11111
5/12
Page 6
ST202E/ST232E
SupplyCurrent vs Temperature
ReceiverPropagationDelay
DataRate vs Temperature
DriverPropagationDelay
HighLevel Output Voltage Swing vs Temperature
6/12
Low Level Output Voltage Swing vs Temperature
Page 7
ST202E/ST232E
HighLevel Trasmitter Output Short Circuit
Currentvs Temperature
HighLevel Receiver Output Short Circuit Current
vs Temperature
Low Level Trasmitter OutputShort Circuit
Currentvs Temperature
Low Level Receiver OutputShort Circuit Current
vs Temperature
7/12
Page 8
ST202E/ST232E
Plastic DIP-16 (0.25) MECHANICAL DATA
DIM.
MIN.TYP.MAX.MIN.TYP.MAX.
a10.510.020
B0.771.650.0300.065
b0.50.020
b10.250.010
D200.787
E8.50.335
e2.540.100
e317.780.700
F7.10.280
I5.10.201
L3.30.130
Z1.270.050
mminch
8/12
P001C
Page 9
SO-16 MECHANICAL DATA
ST202E/ST232E
DIM.
MIN.TYP.MAX.MIN.TYP.MAX.
A1.750.068
a10.10.20.0040.007
a21.650.064
b0.350.460.0130.018
b10.190.250.0070.010
C0.50.019
c145 (typ.)
D9.8100.3850.393
E5.86.20.2280.244
e1.270.050
e38.890.350
F3.84.00.1490.157
G4.65.30.1810.208
L0.51.270.0190.050
M0.620.024
S8 (max.)
mminch
P013H
9/12
Page 10
ST202E/ST232E
SO16L MECHANICAL DATA
DIM.
MIN.TYP.MAX.MIN.TYP.MAX.
A2.650.104
a10.10.20.0040.008
a22.450.096
b0.350.490.0140.019
b10.230.320.0090.012
C0.50.020
c145 (typ.)
D10.110.50.3970.413
E10.010.650.3.930.419
e1.270.050
e38.890.350
F7.47.60.2910.300
L0.51.270.0200.050
M0.750.029
S8 (max.)
mminch
10/12
P013I
Page 11
TSSOP16 MECHANICAL DATA
ST202E/ST232E
DIM.
mminch
MIN.TYP.MAX.MIN.TYP.MAX.
A1.10.433
A10.050.100.150.0020.0040.006
A20.850.90.950.3350.3540.374
b0.190.300.00750.0118
c0.090.200.00350.0079
D4.955.10.1930.1970.201
E6.256.46.50.2460.2520.256
E14.34.44.480.1690.1730.176
e0.65 BSC0.0256 BSC
K0
o
o
4
o
8
o
0
o
4
8
L0.500.600.700.0200.0240.028
o
A2
A
A1
PIN 1 IDENTIFICATION
b
e
c
K
L
E
D
E1
1
11/12
Page 12
ST202E/ST232E
Information furnished isbelieved to be accurate and reliable. However,STMicroelectronics assumes no responsibility forthe consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in thispublication are
subject tochange without notice. Thispublication supersedes and replaces all information previously supplied.STMicroelectronics products
are not authorized for use as criticalcomponents in lifesupport devices or systems withoutexpress written approval of STMicroelectronics.
The ST logo isa registered trademark of STMicroelectronics
2000 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil- China - Finland - France - Germany - Hong Kong - India - Italy - Japan- Malaysia - Malta - Morocco
Singapore - Spain- Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com
.
12/12
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