ST202E
ST232E
± 15KV ESD PROTECTED
5V RS-232 TRANSCEIVER
s
s
s
s
ESD PROTECTION FOR RS-232 I/O PINS:
±
15KV HUMAN BODY MODEL
GUARANTEED 230kbps DATE RATE
GUARANTEED SLEW RATE RANGE 3 to
30V/µs
OPERATE FROM A SINGLE 5V POWER
SUPPLY
DIP
SOP
DESCRIPTION
The ST202E/ST232E are a 2 driver 2 receiver
devices designed for RS-232 and V.28
communications in harsh environments. 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-232E specification. The ST202E/232E
use a single 5V supply voltage.
The ST232E operates with four 1µF capacitors,
while the ST202E operates with four 0.1µF
capacitors, further reducing cost and board space.
ORDERING CODES
Type
ST202ECN
ST202EBN
ST202EAN
ST202ECD
ST202EBD
ST202EAD
ST202ECDR
ST202EBDR
ST202EADR
ST202ECW
ST202EBW
ST202EAW
ST202ECWR
ST202EBWR
ST202EAWR
ST202ECTR
ST202EBTR
ST202EATR
ST232ECN
ST232EBN
ST232EAN
ST232ECD
ST232EBD
ST232EAD
ST232ECDR
ST232EBDR
ST232EADR
ST232ECW
ST232EBW
ST232EAW
ST232ECWR
ST232EBWR
ST232EAWR
ST232ECTR
ST232EBTR
ST232EATR
Temperature
Range
0 to 70 °C
-40 to 85 °C
-40 to 125 °C
0 to 70 °C
-40 to 85 °C
-40 to 125 °C
0 to 70 °C
-40 to 85 °C
-40 to 125 °C
0 to 70 °C
-40 to 85 °C
-40 to 125 °C
0 to 70 °C
-40 to 85 °C
-40 to 125 °C
0 to 70 °C
-40 to 85 °C
-40 to 125 °C
Package
SOP Large
TSSOP
Comments
25 parts per tube / 40 tube per box
25 parts per tube / 40 tube per box
25 parts per tube / 40 tube per box
50 parts per tube / 20 tube per box
50 parts per tube / 20 tube per box
50 parts per tube / 20 tube per box
2500 parts per reel
2500 parts per reel
2500 parts per reel
49 parts per tube / 25 tube per box
49 parts per tube / 25 tube per box
49 parts per tube / 25 tube per box
1000 parts per reel
1000 parts per reel
1000 parts per reel
2500 parts per reel
2500 parts per reel
2500 parts per reel
DIP-16
DIP-16
DIP-16
SO-16 (Tube)
SO-16 (Tube)
SO-16 (Tube)
SO-16 (Tape & Reel)
SO-16 (Tape & Reel)
SO-16 (Tape & Reel)
SO-16 Large (Tube)
SO-16 Large (Tube)
SO-16 Large (Tube)
SO-16 Large (Tape & Reel)
SO-16 Large (Tape & Reel)
SO-16 Large (Tape & Reel)
TSSOP16 (Tape & Reel)
TSSOP16 (Tape & Reel)
TSSOP16 (Tape & Reel)
November 2003
1/14
ST202E/ST232E
PIN CONFIGURATION
PIN DESCRIPTION
PlN N°
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SYMBOL
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T2
OUT
R2
IN
R2
OUT
T2
IN
T1
IN
R1
OUT
R1
IN
T1
OUT
GND
V
CC
NAME AND FUNCTION
Positive Terminal for the first Charge Pump Capacitor
Doubled Voltage Terminal
Negative Terminal for the first Charge Pump Capacitor
Positive Terminal for the second Charge Pump Capacitor
Negative Terminal for the second Charge Pump Capacitor
Inverted Voltage Terminal
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
Ground
Supply Voltage
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V+
V-
T
IN
R
IN
T
OUT
R
OUT
T
SCTOUT
T
stg
Supply Voltage
Extra Positive Voltage
Extra Negative Voltage
Transmitter Input Voltage Range
Receiver Input Voltage Range
Transmitter Output Voltage Range
Receiver Output Voltage Range
Short Circuit Duration on T
OUT
Storage Temperature Range
Parameter
Value
-0.3 to 6
(V
CC
- 0.3) to 14
-14 to 0.3
-0.3 to (V
+
+ 0.3)
±
30
(V
-
- 0.3) to (V
+
+ 0.3)
-0.3 to (V
CC
+ 0.3)
infinite
-65 to + 150
°C
Unit
V
V
V
V
V
V
V
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
2/14
ST202E/ST232E
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
Symbol
ESD
ESD
ESD
Parameter
ESD Protection Voltage
ESD Protection Voltage
ESD Protection Voltage
Test Conditions
Human Body Model
IEC 1000-4-2 (Contact Discharge)
IEC 1000-4-2 (Air Discharge)
Min.
±
15
±
6
±
8
Typ.
Max.
Unit
KV
KV
KV
Note: All test versus GND.
ELECTRICAL CHARACTERISTICS
(C
1
- C
4
= 0.1µF for ST202E, C
1
- C
4
= 1µF for ST232E, V
CC
= 5V
±
10%, T
A
= -40 to 125°C,
unless otherwise specified. Typical values are referred to T
A
= 25°C)
Symbol
Parameter
No Load,
Test Conditions
T
A
= 25°C
Min.
Typ.
5
Max.
10
Unit
mA
I
SUPPLY
V
CC
Power Supply Current
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C
1
- C
4
= 0.1µF for ST202E, C
1
- C
4
= 1µF for ST232E, V
CC
= 5V
±
10%, T
A
= -40 to 125°C,
unless otherwise specified. Typical values are referred to T
A
= 25°C)
Symbol
V
TOUT
I
TIL
V
TIL
V
TIH
SR
T
Parameter
Output Voltage Swing
Input Leakage Current
Input Logic Threshold Low
Input Logic Threshold High
Transition Slew Rate
T
A
= 25°C,
V
CC
= 5V
C
L
= 50 to 1000pF
R
L
= 3 to 7KΩ,
(Note1)
R
L
= 3 to 7KΩ,
C
L
= 50 to 1000pF
one transmitter switching
V
CC
= V+ = V- = 0V
V
OUT
=
±
2V
3
6
0.8
2
30
Test Conditions
All Transmitter outputs are loaded with
3KΩ to GND
Min.
±
5
Typ.
±
9
±
1
Max.
Unit
V
µA
V
V
V/µs
D
R
R
TOUT
I
SC
t
DT
Data Rate
Transmitter Output
Resistance
Transmitter Output Short
Circuit Current
Transmitter Propagation
Delay
230
300
400
Kbits/s
Ω
±10
R
L
= 3 to 7KΩ,
C
L
= 50 to 2500pF
All transmitter loaded
2
±60
mA
µA
Note 1: Measured from 3V to -3V or from -3V to 3V.
Note2: One transmitter output is loaded with R
L
= 3KΩ to 7KΩ, C
L
= 50 to 1000pF
3/14
ST202E/ST232E
RECEIVER ELECTRICAL CHARACTERISTICS
(C
1
- C
4
= 0.1µF for ST202E, C
1
- C
4
= 1µF for ST232E, V
CC
= 5V
±
10%, T
A
= -40 to 125°C,
unless otherwise specified. Typical values are referred to T
A
= 25°C)
Symbol
V
RIN
R
RIN
V
RIL
Parameter
Receiver Input Voltage
Operating Range
RS-232 Input Resistance
Test Conditions
Min.
-30
T
A
= 25°C, V
CC
= 5 V
T
A
= 25°C, V
CC
= 5 V
T
A
= 25°C, V
CC
= 5 V
V
CC
= 5V
I
OUT
= 3.2mA
I
OUT
= -1mA
C
L
= 150pF
3.5
V
CC
-0.4
0.5
10
0.2
3
0.8
5
1.2
1.7
0.5
2.4
1
0.4
Typ.
Max.
30
7
Unit
V
KΩ
V
V
V
V
V
µs
RS-232 Input Logic
Threshold Low
RS-232 Input Logic
V
RIH
Threshold High
V
RIHYS
RS-232 Input Hysteresis
V
ROL
TTL/CMOS Output Voltage
Low
V
ROH
TTL/CMOS Output Voltage
High
Receiver Propagation Delay
t
DR
APPLICATION CIRCUITS
(note 1, note 2)
Note 1: C
1-4
capacitors can even be 1µF ones.
Note 2: C
1-4
can be common or biased capacitors.
4/14
ST202E/ST232E
CAPACITANCE VALUE (µF)
DEVICES
ST202E
ST232E
C1
0.1
1
C2.
0.1
1
C3
0.1
1
C4
0.1
1
C5
0.1
1
TYPICAL PERFORMANCE CHARACTERISTICS
(unless otherwise specified T
j
= 25°C)
Figure 1 :
Supply Current vs Temperature
Figure 3 :
Receiver Propagation Delay
Figure 2 :
Data Rate vs Temperature
Figure 4 :
Driver Propagation Delay
5/14
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