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PDF ST202B Data sheet ( Hoja de datos )
| Número de pieza | ST202B | |
| Descripción | (ST202B/C) 5V Powered multi-channel RS-232 drivers and receivers | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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ST202B
ST202C
5 V powered multi-channel RS-232 drivers and receivers
Features
■ Supply voltage range: 4.5 to 5.5 V
■ Supply current no load (typ.): 1.5 mA
■ Transmitter output voltage swing (Typ): ± 9 V
■ Transition slew rate (typ.): 12 V/ms
■ Receiver propagation delay (typ.): 0.1 ms
■ Compatible with MAX202
■ Receiver input voltage range: ± 30 V
■ Data rate (typ.): 400 kbps/s
■ Operating temperature range:
-40 to 85 °C, 0 to 70 °C
Description
The ST202 is a 2 driver, 2 receiver device
following EIA/TIA-232 and V.28 communication
standard. It is particularly suitable for applications
where ± 12 V is not available. The ST202 uses a
single 5 V power supply and only four external
capacitors (0.1 µF). Typical application are in:
portable computers, low power modems,
interfaces translation, battery powered RS-232
networks.
SOP
SOP Large
TSSOP
Table 1. Device summary
Order code Temperature range
Package
ST202BD
-40 to 85 °C
SO-16 (tube)
ST202CDR
0 to 70 °C
SO-16 (tape and reel)
ST202BDR
-40 to 85 °C
SO-16 (tape and reel)
ST202CWR
ST202CTR
ST202BTR
0 to 70 °C
0 to 70 °C
-40 to 85 °C
SO-16 Large (tape and reel)
TSSOP16 (tape and reel)
TSSOP16 (tape and reel)
Packaging
50 parts per tube / 20 tube per box
2500 parts per reel
2500 parts per reel
1000 parts per reel
2500 parts per reel
2500 parts per reel
February 2008
Rev 8
1/17
www.st.com
17
1 page  
ST202B - ST202C
3 Electrical characteristics
Electrical characteristics
Table 4.
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).
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
ISUPPLY VCC power supply current
No Load
1.5 4
mA
Table 5.
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 3kΩ to GND
ITIL
VTIL
VTIH
SRT
DR
RTOUT
ISC
Logic pull-up current
Input logic threshold low
Input logic threshold high
Transition slew rate
Data rate
Transmitter output resistance
Transmitter output short circuit
current
TIN = 0V
TA = 25°C, VCC = 5V
RL = 3 to 7kΩ, CL = 50 to 2500pF (1)
(2)
VCC = V+ = V- = 0V VOUT = ± 2V
One TXOUT to GND
tDT Propagation delay time
TTL-CMOS IN to RS-232 OUT
CL = 150pF (50% to 50%)
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
±5 ±9
5
0.8 1.4
1.4
6 12
200 400
300
± 7 ± 22
1.3
V
40 µA
V
2V
30 V/µs
kbits/s
Ω
mA
3.5 µs
5/17
5 Page 
ST202B - ST202C
Package mechanical data
Dim.
A
a1
a2
b
b1
C
c1
D
E
e
e3
F
G
L
M
S
SO-16L mechanical data
Min.
0.1
0.35
0.23
10.1
10.0
7.4
mm.
Typ.
0.5
1.27
8.89
Max.
2.65
0.2
2.45
0.49
0.32
Min.
0.004
0.014
0.009
45° (typ.)
10.5 0.397
10.65
0.393
7.6 0.291
0.5 1.27 0.020
0.75
8° (max.)
inch.
Typ.
0.020
0.050
0.350
Max.
0.104
0.008
0.096
0.019
0.012
0.413
0.419
0.300
0.050
0.029
PO13I
11/17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet ST202B.PDF ] | |
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