ST202EB, ST202EC, ST232EB,
ST232EC
±15 kV ESD-protected 5 V RS-232 transceiver
Datasheet - production data
Description
The ST202EB, ST202EC, ST232EB, and
ST232EC are two-driver, two-receiver devices
designed for RS-232 and V.28 communications
in harsh environments. Each transmitter output
and receiver input is protected against ± 15 kV
electrostatic discharge (ESD) shocks. The drivers
meet all EIA/TIA-232E and CCITT V.28
specifications at data rates up to 230 kbps, when
loaded in accordance with the EIA/TIA-232E
specification. The ST202EB, ST202EC,
ST232EB, and ST232EC use a single 5 V supply
voltage.
Features
ESD protection for RS-232 I/O pins: ± 15 kV
human body model
Guaranteed 230 kbps date rate
Guaranteed slew rate range 3 to 30 V/µs
Operates from a single 5 V power supply
March 2017
The ST232EB and ST232EC operate with four
1 µF capacitors, while the ST202EB and
ST202EC operate with four 0.1 µF capacitors,
further reducing cost and board space.
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This is information on a product in full production.
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www.st.com
Contents
ST202EB, ST202EC, ST232EB, ST232EC
Contents
1
Pinout information........................................................................... 3
2
Absolute maximum ratings............................................................. 4
3
4
Electrical characteristics ................................................................ 5
Typical application .......................................................................... 7
5
Typical performance characteristics ............................................. 8
6
Package information ..................................................................... 10
6.1
SO16 package information .............................................................. 11
6.2
TSSOP16 package information ....................................................... 12
6.3
SO16 tape and reel package information ........................................ 13
6.4
TSSOP16 tape and reel package information ................................. 14
6.5
Thermal characteristics ................................................................... 15
7
Ordering information..................................................................... 16
8
Revision history ............................................................................ 17
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ST202EB, ST202EC, ST232EB, ST232EC
1
Pinout information
Pinout information
Figure 1: Pin connections (top view)
Table 1: Pin description
Pin n°
Symbol
Name and function
1
C1 +
Positive terminal for the first charge pump capacitor
2
V+
Doubled voltage terminal
3
C1 -
Negative terminal for the first charge pump capacitor
4
C2 +
Positive terminal for the second charge pump capacitor
5
C2 -
Negative terminal for the second charge pump capacitor
6
V-
Inverted voltage terminal
7
T2OUT
8
R2IN
9
R2OUT
Second receiver output voltage
10
T2IN
Second transmitter input voltage
11
T1IN
First transmitter input voltage
12
R1OUT
First receiver output voltage
13
R1IN
14
T1OUT
First transmitter output voltage
15
GND
Ground
16
VCC
Supply voltage
Second transmitter output voltage
Second receiver input voltage
First receiver input voltage
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Absolute maximum ratings
2
ST202EB, ST202EC, ST232EB, ST232EC
Absolute maximum ratings
Absolute maximum ratings are those values beyond which damage to the device may
occur. Functional operation under these conditions is not implied.
Table 2: Absolute maximum ratings
Symbol
Value
Unit
–0.3 to 6
VCC
Supply voltage
V+
Extra positive voltage
V-
Extra negative voltage
TIN
Transmitter input voltage range
RIN
Receiver input voltage range
(VCC – 0.3) to 14
-14 to 0.3
-0.3 to (V+ + 0.3)
Transmitter output voltage range
ROUT
Receiver output voltage range
–0.3 to (VCC + 0.3)
TSCTOUT
Short circuit duration on TOUT
Infinite
Storage temperature range
DocID6900 Rev 18
V
± 30
TOUT
TSTG
4/18
Parameter
(V- - 0.3) to (V+ + 0.3)
-65 to 150
°C
ST202EB, ST202EC, ST232EB, ST232EC
3
Electrical characteristics
Electrical characteristics
Table 3: ESD performance: transmitter outputs, receiver inputs
Symbol
ESD
Parameter
ESD protection voltage
Test conditions
Min.
Human body model
± 15
IEC 1000-4-2 (contact discharge)
±6
IEC 1000-4-2 (air discharge)
±8
Typ.
Max.
Unit
—
—
kV
Table 4: Electrical characteristics, C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = –40 to 125 °C, unless
otherwise specified, typical values are referred to TA = 25 °C
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
ISUPPLY
VCC power supply current
No load, TA = 25 °C
—
5
10
mA
Table 5: Transmitter electrical characteristics, C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = –40 to
85 °C, unless otherwise specified, typical values are referred to T A = 25 °C
Symbol
Parameter
Test conditions
Min.
Typ.
VTOUT
Output voltage swing
All transmitter outputs are loaded
with 3 kΩ to GND
±5
±9
ITIL
Input leakage current
VTIL
Input logic threshold
low
VTIH
Input logic threshold
high
SRT
Transition slew rate
TA = 25 °C, VCC = 5 V, RL = 3 to
7 kΩ, CL = 50 to 1000 pF (1)
3
6
DR
Data rate
RL = 3 to 7 kΩ, CL = 50 to
1000 pF, one transmitter switching
230
400
RTOUT
Transmitter output
resistance
VCC = V+ = V- = 0 V, VOUT = ± 2 V
300
ISC
Transmitter output
short circuit current
tDT
Propagation delay
time
Max.
Unit
V
± 10
µA
0.8
V
2
V/µs
kbits/s
Ω
± 10
RL = 3 to 7 kΩ, CL = 50 to
2500 pF, all transmitters loaded
30
2
± 60
mA
µA
Notes:
(1)Measured
from 3 V to -3 V or from -3 V to 3 V
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Electrical characteristics
ST202EB, ST202EC, ST232EB, ST232EC
Table 6: Receiver electrical characteristics, C1 - C4 = 0.1 µF, VCC = 5 V ± 10 %, TA = –40 to
85 °C, unless otherwise specified, typical values are referred to T A = 25 °C
6/18
Symbol
Parameter
VRIN
Receiver input voltage operating
range
RRIN
RS-232 input resistance
Test
conditions
Min.
Typ.
-30
TA = 25 °C,
VCC = 5 V
VRIL
RS-232 input logic threshold low
VRIH
RS-232 input logic threshold high
VRIHYS
RS-232 input hysteresis
VCC = 5 V
VROL
TTL/CMOS output voltage low
IOUT = 3.2 mA
VROH
TTL/CMOS output voltage high
IOUT = -1 mA
tDR
Propagation delay time
CL = 150 pF
DocID6900 Rev 18
3
5
0.8
1.2
0.2
Max.
Unit
30
V
7
kΩ
1.7
2.4
0.5
1
V
0.4
3.5
VCC 0.4
0.5
10
µs
ST202EB, ST202EC, ST232EB, ST232EC
4
Typical application
Typical application
Figure 2: Application circuit
1.
2.
C1-4 can be replaced by the 1 µF capacitors
C1-4 can be common or biased capacitors
Table 7: Capacitance value (µF)
Device
C2
C3
C4
ST202E
0.1
ST232E
1
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Typical performance characteristics
5
ST202EB, ST202EC, ST232EB, ST232EC
Typical performance characteristics
Unless otherwise specified TJ = 25 °C
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Figure 3: Supply current vs temperature
Figure 4: Data rate vs temperature
Figure 5: Receiver propagation delay
Figure 6: Driver propagation delay
DocID6900 Rev 18
ST202EB, ST202EC, ST232EB, ST232EC
Typical performance characteristics
Figure 7: High level output voltage swing vs temperature
Figure 8: Low level output voltage swing vs temperature
Figure 9: High level transmitter output short circuit
current vs temperature
Figure 10: Low level transmitter output short circuit
current vs temperature
Figure 11: High level receiver output short circuit current
vs temperature
Figure 12: Low level receiver output short circuit current
vs temperature
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Package information
6
ST202EB, ST202EC, ST232EB, ST232EC
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK ®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
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ST202EB, ST202EC, ST232EB, ST232EC
6.1
Package information
SO16 package information
Figure 13: SO16 package outline
Table 8: SO16 mechanical data
Dimensions
Ref
Millimeters
Min.
Typ.
A
a1
Inches
Max
Min.
Typ.
1.75
0.1
0.25
a2
Max.
0.068
0.004
0.010
1.64
0.063
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 °
45 °
D
9.8
10
0.385
0.393
E
5.8
6.2
0.228
0.244
e
1.27
e3
0.050
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°
8°
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Package information
6.2
ST202EB, ST202EC, ST232EB, ST232EC
TSSOP16 package information
Figure 14: TSSOP16 package outline
Table 9: TSSOP16 mechanical data
Dimensions
Ref
Millimeters
Min
Typ
A
Max
Min
Typ
1.20
A1
0.05
A2
0.80
b
Max
0.047
0.15
0.002
1.05
0.031
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.008
D
4.90
5.00
5.10
0.193
0.197
0.201
E
6.20
6.40
6.60
0.244
0.252
0.260
E1
4.30
4.40
4.50
0.169
0.173
0.177
e
k
0°
0.45
aaa
1.00
0.65
L
L1
12/18
Inches
0.60
0.006
0.039
0.041
0.026
8°
0°
0.75
0.018
1.00
8°
0.024
0.030
0.039
0.10
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0.004
ST202EB, ST202EC, ST232EB, ST232EC
6.3
Package information
SO16 tape and reel package information
Figure 15: SO16 tape and reel package outline
1.
Drawing not to scale
Table 10: SO16 tape and reel mechanical data
Dimensions
Ref
Millimeters
Min.
Typ.
A
Inches
Max
Min.
Typ.
330
C
12.8
D
20.2
N
60
T
Ao
6.45
Bo
13.2
Max.
12.992
0.504
0.519
0.795
2.362
—
22.4
—
0.882
6.65
0.254
10.3
10.5
0.406
0.414
Ko
2.1
2.3
0.082
0.090
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
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Package information
6.4
ST202EB, ST202EC, ST232EB, ST232EC
TSSOP16 tape and reel package information
Figure 16: TSSOP16 tape and reel package outline
1.
Drawing not to scale
Table 11: TSSOP16 tape and reel mechanical data
Dimensions
Ref
Millimeters
Min.
Typ.
A
Max
Min.
Typ.
330
C
12.8
D
20.2
N
60
T
14/18
Inches
Ao
6.7
Bo
13.2
Max.
12.992
0.504
0.519
0.795
2.362
—
22.4
—
0.882
6.9
0.264
5.3
5.5
0.209
0.217
Ko
1.6
1.8
0.063
0.071
Po
3.9
4.1
0.153
0.161
P
7.9
8.1
0.311
0.319
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ST202EB, ST202EC, ST232EB, ST232EC
6.5
Package information
Thermal characteristics
Table 12: Absolute maximum ratings
Package
Symbol
Rthja (1)
SO16
TSSOP16
Rthjc
(2)
Rthja
(1)
Rthjc
(2)
Value
Board type
115
1-layer board
80
4-layer board
30
1-layer board
140
1-layer board
95
25
Unit
°C/W
2-layer board
Notes:
(1)R
thja
is the package junction-to-ambient thermal resistance in °C/W
(2)R
thjc
is the package junction-to-case thermal resistance in °C/W
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Ordering information
7
ST202EB, ST202EC, ST232EB, ST232EC
Ordering information
Table 13: Order codes
Order code
16/18
Temperature
range
ST202EBDR
ST232EBDR
-40 to 85 °C
ST202ECDR
ST232ECDR
0 to 70 °C
Package
Packaging
Marking
ST202B
S016
(tape and reel)
ST202C
2500 parts per reel
ST202EBTR
ST232EBTR
-40 to 85 °C
ST202ECTR
ST232ECTR
0 to 70 °C
TSSOP16
(tape and reel)
DocID6900 Rev 18
ST202B
ST202C
ST202EB, ST202EC, ST232EB, ST232EC
8
Revision history
Revision history
Table 14: Document revision history
Date
Revision
Changes
21-Feb-2006
12
Change value of ITIL on transmitter characteristics, ±1µA ==> ±10µA.
14-Mar-2006
13
Order codes has been updated and new template.
27-Aug-2007
14
Added Table 1 in cover page.
13-Nov-2007
15
Modified: Table 1.
08-Feb-2008
16
Modified: Table 1 on page 1.
15-Jan-2014
17
Updated ECOPACK® information
Added Section 6.1: Package thermal characteristics
Updated disclaimer
18
Removed SO16L package
Features: updated units of guaranteed slew rate range from V/ms to
V/µs.
Moved “Device summary” table to Section 7: "Ordering information".
Removed obsolete order codes ST202EBWR and ST232ECWR
from this table and added “Marking”.
Section 6.2: "TSSOP16 package information": added dimensions
“L1” and “aaa”, and replaced dimension “K” with “k”.
08-Mar-2017
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ST202EB, ST202EC, ST232EB, ST232EC
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