ST202C [STMICROELECTRONICS]
5 V powered multi-channel RS-232 drivers and receivers; 5 V供电的多路RS - 232驱动器和接收器
| 型号： | ST202C |
| 厂家： | 
ST |
| 描述： | 5 V powered multi-channel RS-232 drivers and receivers |
| 文件： | 总17页 (文件大小：712K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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): ꢀ V
■ Transition slew rate (typ.): 12 V/ms
■ Receiver propagation delay (typ.): 0.1 ms
■ Compatible with MAX202
SOP
SOP Large
■ Receiver input voltage range: 30 V
■ Data rate (typ.): 400 kbps/s
■ Operating temperature range:
-40 to 85 °C, 0 to 70 °C
TSSOP
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.
Table 1.
Device summary
Order code
Temperature range
Package
Packaging
ST202BD
ST202CDR
ST202BDR
ST202CWR
ST202CTR
ST202BTR
-40 to 85 °C
0 to 70 °C
-40 to 85 °C
0 to 70 °C
0 to 70 °C
-40 to 85 °C
SO-16 (tube)
50 parts per tube / 20 tube per box
2500 parts per reel
SO-16 (tape and reel)
SO-16 (tape and reel)
2500 parts per reel
SO-16 Large (tape and reel)
TSSOP16 (tape and reel)
TSSOP16 (tape and reel)
1000 parts per reel
2500 parts per reel
2500 parts per reel
February 2008
Rev 8
1/17
www.st.com
17
ST202B - ST202C
Contents
1
2
3
4
5
6
7
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2/17
ST202B - ST202C
Pin configuration
1
Pin configuration
Figure 1.
Pin connections (top view)
Table 2.
Pin n°
Pin description
Symbol
Note
1
2
C1+
V+
Positive terminal for the first charge pump capacitor
Doubled voltage terminal
3
C1-
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
4
C2+
5
C2-
6
V-
7
T2OUT
R2IN
R2OUT
T2IN
T1IN
R1OUT
R1IN
T1OUT
GND
VCC
Second transmitter output voltage
Second receiver input voltage
8
ꢀ
Second receiver output voltage
Second transmitter input voltage
First transmitter input voltage
10
11
12
13
14
15
16
First receiver output voltage
First receiver input voltage
First transmitter output voltage
Ground
Supply voltage
3/17
Maximum ratings
ST202B - ST202C
2
Maximum ratings
Table 3.
Absolute maximum ratings
Parameter
Symbol
Value
Unit
VCC
V+
Supply voltage
-0.3 to 6
(VCC -0.3) to 13.2
0.3 to -13.2
-0.3 to (VCC + 0.3)
± ± 30
V
V
V
V
V
V
V
Extra positive voltage
V-
Extra negative voltage
TIN
Transmitter input voltage range
Receiver input voltage range
Transmitter output voltage range
Receiver output voltage range
Short circuit duration on TOUT
RIN
TOUT
ROUT
TSCTOUT
± ± 15
-0.3 to (VCC + 0.3)
infinite
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
4/17
ST202B - ST202C
Electrical characteristics
3
Electrical characteristics
Table 4.
Electrical characteristics
(C - C = 0.1 µF, V = 5 V 10 %, T = -40 to 85 °C, unless otherwise specified. Typical
1
4
CC
A
values are referred to T = 25 °C).
A
Symbol
Parameter
Test condition
Min. Typ. Max.
1.5
Unit
ISUPPLY
VCC power supply current
No Load
4
mA
Table 5.
Transmitter electrical characteristics
(C - C = 0.1 µF, V = 5 V 10 %, T = -40 to 85 °C, unless otherwise specified. Typical
1
4
CC
A
values are referred to T = 25 °C).
A
Symbol
Parameter
Test condition
Min. Typ. Max.
Unit
All transmitter outputs are loaded
with 3kΩ to GND
VTOUT Output voltage swing
± ± 5
0.8
6
± ± ꢀ
V
ITIL
VTIL
VTIH
Logic pull-up current
TIN = 0V
5
40
µA
V
Input logic threshold low
Input logic threshold high
1.4
1.4
2
V
TA = 25°C, VCC = 5V
SRT
DR
Transition slew rate
Data rate
12
30
V/µs
RL = 3 to 7kΩ, CL = 50 to 2500pF (1)
(2)
200
300
400
kbits/s
RTOUT Transmitter output resistance
VCC = V+ = V- = 0V VOUT = ± 2V
Ω
Transmitter output short circuit
current
ISC
One TXOUT to GND
± ± 7
± ± 22
mA
µs
TTL-CMOS IN to RS-232 OUT
CL = 150pF (50% to 50%)
tDT
Propagation delay time
1.3
3.5
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
5/17
Electrical characteristics
ST202B - ST202C
Table 6.
Receiver electrical characteristics
(C - C = 0.1 µF, V = 5 V 10 %, T = -40 to 85 °C, unless otherwise specified. Typical
1
4
CC
A
values are referred to T = 25 °C).
A
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Receiver input voltage
operating range
VRIN
-30
30
7
V
RRIN
VRIL
RS-232 input resistance
RS-232 input threshold low
RS-232 input threshold high
RS-232 input hysteresis
TA = 25°C
3
5
1.3
kΩ
V
0.8
VRIH
1.8
2.4
1
V
VRIHYS
VROL
VROH
VCC = 5V
0.2
0.5
V
TTL/CMOS output voltage low IOUT = 3.2mA (to VCC
)
0.2
0.4
V
TTL/CMOS output voltage high IOUT = 1mA (to GND)
3.5
2
VCC-0.2
10
V
to GND
Receiver output short circuit
current
ISCR
mA
µs
to VCC
CL = 150pF (1)
10
30
tDR
Propagation delay time
0.1
0.5
1. RS-232 in to TTL-CMOS out (from 50% to 50%)
6/17
ST202B - ST202C
Typical application
4
Typical application
(1) (2)
Figure 2. Application circuit
1.
C1-4 capacitors can even be 1µF ones
2. C1-4 can be common or biased capacitors
Table 7.
Capacitance value (µF)
C2
C1
C3
C4
C5
0.1
0.1
0.1
0.1
0.1
7/17
Typical performance characteristics
ST202B - ST202C
5
Typical performance characteristics
(Unless otherwise specified T = 25 °C)
J
Figure 3.
Driver voltage transfer
characteristics
Figure 4.
Drive short circuit output current vs
temperature
Figure 5.
Receiver threshold vs supply
voltage
Figure 6.
Driver output capability current vs
output voltage
Figure 7.
Driver short circuit supply current Figure 8.
vs. temperature
Receiver threshold vs temperature
8/17
ST202B - ST202C
Package mechanical data
6
Package mechanical data
®
In order to meet environmental requirements, ST offers these devices in ECOPACK
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESDꢀ7. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
ꢀ/17
Package mechanical data
ST202B - ST202C
SO-16 mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
1.75
0.25
1.64
0.46
0.25
Min.
Max.
0.068
0.010
0.063
0.018
0.010
A
a1
a2
b
0.1
0.004
0.35
0.19
0.013
b1
C
0.007
0.5
0.019
c1
D
45° (typ.)
9.8
5.8
10
0.385
0.228
0.393
E
6.2
0.244
e
1.27
0.050
e3
F
8.89
0.350
3.8
4.6
0.5
4.0
5.3
0.149
0.181
0.019
0.157
0.208
0.050
0.024
G
L
1.27
0.62
M
S
8° (max.)
0016020D
10/17
ST202B - ST202C
Package mechanical data
SO-16L mechanical data
mm.
inch.
Dim.
Min.
Typ.
Max.
2.65
0.2
Min.
Typ.
Max.
0.104
0.008
0.096
0.019
0.012
A
a1
a2
b
0.1
0.004
2.45
0.49
0.32
0.35
0.23
0.014
b1
C
0.009
0.5
0.020
c1
D
45° (typ.)
10.1
10.0
10.5
0.397
0.393
0.413
0.419
E
10.65
e
1.27
0.050
e3
F
8.89
0.350
7.4
0.5
7.6
0.291
0.300
G
L
1.27
0.75
0.020
0.050
M
S
0.029
8° (max.)
PO13I
11/17
Package mechanical data
ST202B - ST202C
TSSOP16 mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
1.2
Min.
Max.
0.047
0.006
0.041
0.012
0.0079
0.201
0.260
0.176
A
A1
A2
b
0.05
0.8
0.15
1.05
0.30
0.20
5.1
0.002
0.031
0.007
0.004
0.193
0.244
0.169
0.004
1
0.039
0.19
0.09
4.9
c
D
E
5
6.4
0.197
0.252
0.173
6.2
6.6
E1
e
4.3
4.4
4.48
0.65 BSC
0.0256 BSC
K
0°
8°
0°
8°
L
0.45
0.60
0.75
0.018
0.024
0.030
A2
A
K
L
b
e
A1
c
E
D
E1
PIN 1 IDENTIFICATION
1
0080338D
12/17
ST202B - ST202C
Package mechanical data
Tape & reel SO-16 mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
330
Min.
Max.
12.992
0.519
A
C
12.8
20.2
60
13.2
0.504
0.795
2.362
D
N
T
22.4
6.65
10.5
2.3
0.882
0.262
0.414
0.090
0.161
0.319
Ao
Bo
Ko
Po
P
6.45
10.3
2.1
0.254
0.406
0.082
0.153
0.311
3.9
4.1
7.9
8.1
13/17
Package mechanical data
ST202B - ST202C
Tape & reel SO-16L mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
330
Min.
Max.
12.992
0.519
A
C
D
12.8
20.2
60
13.2
0.504
0.795
2.362
N
T
22.4
11.0
10.9
3.1
0.882
0.433
0.429
0.122
0.161
0.476
Ao
Bo
Ko
Po
P
10.8
10.7
2.9
0.425
0.421
0.114
0.153
0.468
3.9
4.1
11.9
12.1
14/17
ST202B - ST202C
Package mechanical data
Tape & reel TSSOP16 mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
330
Min.
Max.
12.992
0.519
A
C
12.8
20.2
60
13.2
0.504
0.795
2.362
D
N
T
22.4
6.9
5.5
1.8
4.1
8.1
0.882
0.272
0.217
0.071
0.161
0.319
Ao
Bo
Ko
Po
P
6.7
5.3
1.6
3.9
7.9
0.264
0.209
0.063
0.153
0.311
15/17
Revision history
ST202B - ST202C
7
Revision history
Table 8.
Document revision history
Revision
Date
Changes
0ꢀ-Mar-2006
16-Jul-2007
14-Nov-2007
11-Feb-2008
5
6
7
8
Order codes updated and the document has been reformatted.
Device summary updated.
Modified: Table 1.
Modified: Table 1 on page 1.
16/17
ST202B - ST202C
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