ST202E
ST232E
±15KVESD PROTECTED
5V RS-232 TRANSCEIVER
December 2001
■ESDPROTECTIONFOR RS-232I/OPINS:
±15KVHUMANBODYMODEL
■GUARANTEED230kbpsDATERATE
■GUARANTEEDSLEWRATE RANGE3 to
30V/µs
■OPERATEFROMASINGLE5VPOWER
SUPPLY
DESCRIPTION
The ST202E/ST232E are a 2 driver 2 receiver
devices designed for RS-232 and V.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
230Kbps, 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,
D
(Micro Package)
N
(Plastic Package)
W
(Micro Package Large) T
(TSSOPPackage)
ORDER CODES
Type Temperature
Range Package Comments
ST202ECN ST232ECN 0 to 70 oC DIP-16 25 parts per tube / 40 tube per box
ST202EBN ST232EBN -40 to 85 oC DIP-16 25 parts per tube / 40 tube per box
ST202EAN ST232EAN -40 to 125 oC DIP-16 25 parts per tube / 40 tube per box
ST202ECD ST232ECD 0 to 70 oC SO-16 (Tube) 50 parts per tube / 20 tube per box
ST202EBD ST232EBD -40 to 85 oC SO-16 (Tube) 50 parts per tube / 20 tube per box
ST202EAD ST232EAD -40 to 125 oC SO-16 (Tube) 50 parts per tube / 20 tube per box
ST202ECDR ST232ECDR 0 to 70 oC SO-16 (Tape& Reel) 2500 partsper reel
ST202EBDR ST232EBDR -40 to 85 oC SO-16 (Tape& Reel) 2500 partsper reel
ST202EADR ST232EADR -40 to 125 oC SO-16 (Tape& Reel) 2500 partsper reel
ST202ECW ST232ECW 0 to 70 oC SO-16 Large (Tube) 49 parts per tube / 25 tube per box
ST202EBW ST232EBW -40 to 85 oC SO-16 Large (Tube) 49 parts per tube / 25 tube per box
ST202EAW ST232EAW -40 to 125 oC SO-16 Large (Tube) 49 parts per tube / 25 tube per box
ST202ECWR ST232ECWR 0 to 70 oC SO-16 Large (Tape & Reel) 1000 parts per reel
ST202EBWR ST232EBWR -40 to 85 oC SO-16 Large (Tape & Reel) 1000 partsper reel
ST202EAWR ST232EAWR -40 to 125 oC SO-16 Large (Tape & Reel) 1000 parts per reel
ST202ECTR ST232ECTR 0 to 70 oC TSSOP16 (Tape & Reel) 2500 parts per reel
ST202EBTR ST232EBTR -40 to 85 oC TSSOP16 (Tape & Reel) 2500 parts per reel
ST202EATR ST232EATR -40 to 125 oC TSSOP16 (Tape & Reel) 2500 parts per reel
while the ST202E operates with four 0.1µF
capacitors, further reducing cost and board
space.
1/12
PIN CONFIGURATION
PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
1C
1
+ Positive Terminal for the first Charge Pump Capacitor
2 V+ Doubled Voltage Terminal
3C
1
- Negative Terminal for the first Charge Pump Capacitor
4C
2
+ Positive Terminal for the second Charge Pump Capacitor
5C
2
- Negative Terminal for the second Charge Pump Capacitor
6 V- Inverted Voltage Terminal
7T2
OUT Second Transmitter Output Voltage
8R2
IN Second Receiver Input Voltage
9R2
OUT Second Receiver Output Voltage
10 T2IN Second Transmitter Input Voltage
11 T1IN First Transmitter Input Voltage
12 R1OUT First Receiver Output Voltage
13 R1IN First Receiver Input Voltage
14 T1OUT First Transmitter Output Voltage
15 GND Ground
16 VCC Supply Voltage
ST202E/ST232E
2/12
ELECTRICALCHARACTERISTICS
(C1-C4= 0.1µF for ST202E,C1-C4=1µF forST232E,VCC =5V±10% TA= -40 to 85 oC,
unlessotherwise specified. Typical Valus are referred to TA=25o
C)
Symbol Parameter Test Conditions Value Unit
Min. Typ. Max.
ISUPPLY VCC Power Supply Current No Load, TA=25o
C 5 10 mA
ABSOLUTE MAXIMUM RATINGS(Note 1)
Symbol Parameter Value Unit
VCC Supply Voltage -0.3 to 6 V
V+Extra Positive Voltage (VCC - 0.3) to 14 V
V-Extra Negative Voltage -14 to 0.3 V
TIN Transmitter Input Voltage Range -0.3 to (V+ + 0.3) V
RIN Receiver Input Voltage Range ±30 V
TOUT Transmitter Output Voltage Range (V- - 0.3) to (V+ + 0.3) V
ROUT Receiver Output Voltage Range -0.3 to (VCC + 0.3) V
TSCTOUT Short Circuit Duration on TOUT infinite
Tstg Storage Temperature Range -65 to +150 oC
AbsoluteMaximumRatingsarethosevaluesbeyond whichdamagetothedevicemayoccur. Functional operationunderthese condition isnot implied.
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C1-C4= 0.1µF for ST202E,C1-C4=1µF forST232, VCC =5V±10%, TA= -40 to 85 oC,
unlessotherwise specified. Typical Valus are referred to TA=25o
C)
Symbol Parameter Test Conditions Value Unit
Min. Typ. Max.
VTOUT Output Voltage Swing All Transmitter outputs are loaded
with 3KΩto GND ±5±9V
I
TIL Logic Pull-Up Current TIN =0VtoV
CC ±10 µA
VTIL Input Logic Threshold Low 0.8 V
VTIH Input Logic Threshold High 2 V
SRTTransition Slew Rate TA=25o
C, VCC =5V,
R
L=3to7KΩ,
C
L
= 50 to 1000 pF (Note 1)
3 6 30 V/µs
DRData Rate RL=3to7KΩ,C
L
= 50 to 1000 pF
one trasmitter switching 230 400 Kbits/s
RTOUT Transmitter Output Resistance VCC = V+ = V- = 0V
VOUT =±2V 300 Ω
ISC Transmitter Output Short
Circuit Current ±10 ±60 mA
tDT Trasmitter Propagation Delay RL=3K
Ω
,C
L
= 2500 pF
All trasmitter loaded 2µA
Note1:Measured from3Vto-3Vor from-3Vto3V.
Note 2: One trasmitter output is loaded with RL=3KΩto7KΩ,CL= 50to 1000pF
ST202E/ST232E
3/12
RECEIVERELECTRICAL CHARACTERISTICS
(C1-C4= 0.1µF for ST202E,C1-C4=1µF forST232E,VCC =5V±10%, TA= -40 to 85 oC,
unless otherwise specified. TypicalValus are referred to TA=25o
C)
Symbol Parameter Test Conditions Value Unit
Min. Typ. Max.
VRIN Receiver Input Voltage
Operating Range -30 30 V
RRIN RS-232 Input Resistance TA=25o
C, VCC =5V 357K
Ω
V
RIL RS-232 Input Logic Threshold
Low TA=25o
C, VCC = 5 V 0.8 1.2 V
VRIH RS-232 Input Logic Threshold
High TA=25o
C, VCC = 5 V 1.7 2.4 V
VRIHYS RS-232 Input Hysteresis VCC = 5 V 0.2 0.5 1 V
VROL TTL/CMOS Output Voltage
Low IOUT = 3.2mA 0.4 V
VROH TTL/CMOS Output Voltage
High IOUT = -1mA 3.5 VCC-0.4 V
tdR Propagation Delay Time CL=150pF 0.5 10 µs
ST202E/ST232E
4/12
APPLICATION CIRCUITS (note 1, note 2)
C4 +
C1 +C1+
C1-
3
C2 +C2+
C2-
4
5
11
10
12
9
TTL / CMOS OUTPUTS
TTL / CMOS INPUTS
V- 6
C5 +
+
C3
+5VINPUT
116
Vcc V+ 2+10V
-10V
RS 232OUTPUTS
RS 232INPUTS
14
7
13
8
15
GND
5K
5K
+5V TO+10V
VOLTAGE
DOUBLER
+10V TO-10V
VOLTAGE
INVERTER
T1OUT
T1IN
T2IN T2OUT
T1
T2
R2IN
R1IN
R2OUT
R1OUT R1
R2
CapacitanceValue (µF)
DEVICESC1C2C3C4C5
ST202E 0.1 0.1 0.1 0.1 0.1
ST232E 1 1 1 1 1
Note1:C1-4capacitorscan even be1 µFones.
Note2:C1-4canbecommon orbiased capacitors.
ST202E/ST232E
5/12
SupplyCurrent vs Temperature
ReceiverPropagationDelay
HighLevel Output VoltageSwing vs Temperature
DataRate vs Temperature
DriverPropagation Delay
Low LevelOutput Voltage Swing vs Temperature
ST202E/ST232E
6/12
HighLevel Trasmitter OutputShort Circuit
Current vs Temperature
HighLevel ReceiverOutput Short Circuit Current
vs Temperature
Low LevelTrasmitter OutputShort Circuit
Current vs Temperature
Low LevelReceiver OutputShort Circuit Current
vs Temperature
ST202E/ST232E
7/12
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
a1 0.51 0.020
B 0.77 1.65 0.030 0.065
b 0.5 0.020
b1 0.25 0.010
D 20 0.787
E 8.5 0.335
e 2.54 0.100
e3 17.78 0.700
F 7.1 0.280
I 5.1 0.201
L 3.3 0.130
Z 1.27 0.050
P001C
Plastic DIP-16 (0.25) MECHANICAL DATA
ST202E/ST232E
8/12
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 1.75 0.068
a1 0.1 0.2 0.004 0.007
a2 1.65 0.064
b 0.35 0.46 0.013 0.018
b1 0.19 0.25 0.007 0.010
C 0.5 0.019
c1 45 (typ.)
D 9.8 10 0.385 0.393
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 8.89 0.350
F 3.8 4.0 0.149 0.157
G 4.6 5.3 0.181 0.208
L 0.5 1.27 0.019 0.050
M 0.62 0.024
S 8 (max.)
P013H
SO-16 MECHANICAL DATA
ST202E/ST232E
9/12
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 2.65 0.104
a1 0.1 0.2 0.004 0.008
a2 2.45 0.096
b 0.35 0.49 0.014 0.019
b1 0.23 0.32 0.009 0.012
C 0.5 0.020
c1 45 (typ.)
D 10.1 10.5 0.397 0.413
E 10.0 10.65 0.3.93 0.419
e 1.27 0.050
e3 8.89 0.350
F 7.4 7.6 0.291 0.300
L 0.5 1.27 0.020 0.050
M 0.75 0.029
S 8 (max.)
P013I
SO16L MECHANICAL DATA
ST202E/ST232E
10/12
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 1.1 0.433
A1 0.05 0.10 0.15 0.002 0.004 0.006
A2 0.85 0.9 0.95 0.335 0.354 0.374
b 0.19 0.30 0.0075 0.0118
c 0.09 0.20 0.0035 0.0079
D 4.9 5 5.1 0.193 0.197 0.201
E 6.25 6.4 6.5 0.246 0.252 0.256
E1 4.3 4.4 4.48 0.169 0.173 0.176
e 0.65 BSC 0.0256 BSC
K0
o4
o8
o0
o4
o8
o
L 0.50 0.60 0.70 0.020 0.024 0.028
cE
b
A2
A
E1
D
1
PIN 1 IDENTIFICATION
A1 L
K
e
TSSOP16 MECHANICAL DATA
ST202E/ST232E
11/12
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are not authorized for use as critical components in lifesupport devices or systems withoutexpress written approval of STMicroelectronics.
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ST202E/ST232E
12/12
