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What is ST202EB?

This electronic component, produced by the manufacturer "STMicroelectronics", performs the same function as "ESD protected 5V RS-232 transceiver".


ST202EB Datasheet PDF - STMicroelectronics

Part Number ST202EB
Description ESD protected 5V RS-232 transceiver
Manufacturers STMicroelectronics 
Logo STMicroelectronics Logo 


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ST202EB - ST202EC
ST232EB - ST232EC
± 15 kV ESD protected 5 V RS-232 transceiver
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/ms
Operate from a single 5 V power supply
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 ± 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 ST202E/232E
use a single 5 V supply voltage.
The ST232E operates with four 1 µF capacitors,
while the ST202E operates with four 0.1 µF
capacitors, further reducing cost and board
space.
SOP
SOP Large
TSSOP
Table 1. Device summary
Order codes
Temperature
range
ST202ECDR ST232ECDR 0 to 70 °C
ST202EBDR ST232EBDR -40 to 85 °C
ST232ECWR 0 to 70 °C
ST202EBWR
-40 to 85 °C
ST202ECTR ST232ECTR 0 to 70 °C
ST202EBTR ST232EBTR -40 to 85 °C
Packages
SO-16 (tape & reel)
SO-16 (tape & reel)
SO-16 large (tape & reel)
SO-16 large (tape & reel)
TSSOP16 (tape & reel)
TSSOP16 (tape & reel)
February 2008
Rev 16
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Packaging
2500 parts per reel
2500 parts per reel
1000 parts per reel
1000 parts per reel
2500 parts per reel
2500 parts per reel
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ST202EB equivalent
ST202EB - ST202EC - ST232EB - ST232EC
3 Electrical characteristics
Electrical characteristics
Table 4. ESD performance: transmitter outputs, receiver inputs
Symbol
Parameter
Test condition
ESD ESD protection voltage
Human Body Model
ESD ESD protection voltage
IEC 1000-4-2 (Contact Discharge)
ESD ESD protection voltage
IEC 1000-4-2 (Air Discharge)
Min. Typ. Max.
± 15
±6
±8
Unit
kV
kV
kV
Note:
All test versus GND.
Table 5.
Electrical characteristics
(C1 - C4 = 0.1 µF for ST202E, C1 - C4 = 0.1 µF for ST232E, VCC = 5 V ± 10 %,
TA = -40 to 125 °C, unless otherwise specified. Typical values are referred to TA = 25 °C).
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
ISUPPLY VCC power supply current
No Load, TA = 25°C
5 10 mA
Table 6.
Symbol
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 TA = 25 °C).
Parameter
Test condition
Min. Typ. Max. Unit
VTOUT Output voltage swing
All Transmitter outputs are loaded
with 3 kΩ to GND
±5 ±9
V
ITIL
VTIL
VTIH
SRT
Input leakage current
Input logic threshold low
Input logic threshold high
Transition slew rate
DR Data rate
± 10 µA
0.8 V
2V
TA = 25°C, VCC = 5 V RL = 3 to 7
KΩ, CL = 50 to 1000 pF (1)
RL = 3 to 7 kΩ, CL = 50 to 1000 pF
one transmitter switching
36
230 400
30 V/µs
kbits/s
RTOUT
ISC
Transmitter output resistance
Transmitter output short circuit
current
VCC = V+ = V- = 0V VOUT = ± 2 V
300
±10 ±60
Ω
mA
tDT
Transmitter propagation delay
RL = 3 to 7 kΩ, CL = 50 to 2500 pF
All transmitter loaded
2
µA
1. Measured from 3 V to -3 V or from -3 V to 3 V
2. One transmitter output is loaded with RL = 3 kΩ to 7 kΩ, CL = 50 to 1000 pF
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