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Электронный компонент: ST202EBDR

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ST202E
ST232E
15KV ESD PROTECTED
5V RS-232 TRANSCEIVER
April 2000
s
ESD PROTECTION FOR RS-232 I/O PINS:
15 KV HUMAN BODY MODEL
s
GUARANTEED 120 kbps DATE RATE
s
GUARANTEED SLEW RATE RANGE 3 to
30V/
s
s
OPERATE FROM A SINGLE 5V POWER
SUPPLY
DESCRIPTION
The ST202E/ST232E are a 2 driver 2 receiver
devices
designed
for
RS-232
and
V.28
communications in harsh enviroments. 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
120Kbps, when loaded in accordance with the
EIA/TIA-232E specification.
The ST202E/232E use a single 5V supply
voltage.
The ST232E operates with four 1
F capacitors,
D
(Micro Package)
N
(Plastic Package)
W
(Micro Package Large)
T
(TSSOP Package)
ORDER CODES
T ype
Temperature
Rang e
Packag e
Co mmen ts
ST202ECN
ST232ECN
0 to 70
o
C
DIP-16
25 parts per tube / 40 tube per box
ST202EBN
ST232EBN
-40 to 85
o
C
DIP-16
25 parts per tube / 40 tube per box
ST202ECD
ST232ECD
0 to 70
o
C
SO-16 (Tube)
50 parts per tube / 20 tube per box
ST202EBD
ST232EBD
-40 to 85
o
C
SO-16 (Tube)
50 parts per tube / 20 tube per box
ST202ECDR
ST232ECDR
0 to 70
o
C
SO-16 (Tape & Reel)
2500 parts per reel
ST202EBDR
ST232EBDR
-40 to 85
o
C
SO-16 (Tape & Reel)
2500 parts per reel
ST202ECW
ST232ECW
0 to 70
o
C
SO-16 Large (Tube)
50 parts per tube / 20 tube per box
ST202EBW
ST232EBW
-40 to 85
o
C
SO-16 Large (Tube)
50 parts per tube / 20 tube per box
ST202ECWR
ST232ECWR
0 to 70
o
C
SO-16 Large (Tape & Reel)
1000 parts per reel
ST202EBWR
ST232EBWR
-40 to 85
o
C
SO-16 Large (Tape & Reel)
1000 parts per reel
ST202ECTR
ST232ECTR
0 to 70
o
C
TSSOP16 (Tape & Reel)
2500 parts per reel
ST202EBTR
ST232EBTR
-40 to 85
o
C
TSSOP16 (Tape & Reel)
2500 parts per reel
while the ST202E operates with four 0.1
F
capacitors, further reducing cost and board
space.
1/12
PIN CONFIGURATION
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND F UNCTION
1
C
1
+
Positive Terminal for the first Charge Pump Capacitor
2
V+
Doubled Voltage Terminal
3
C
1
-
Negative Terminal for the first Charge Pump Capacitor
4
C
2
+
Positive Terminal for the second Charge Pump Capacitor
5
C
2
-
Negative Terminal for the second Charge Pump Capacitor
6
V-
Inverted Voltage Terminal
7
T2
OUT
Second Transmitter Output Voltage
8
R2
IN
Second Receiver Input Voltage
9
R2
OUT
Second Receiver Output Voltage
10
T2
IN
Second Transmitter Input Voltage
11
T1
IN
First Transmitter Input Voltage
12
R1
OUT
First Receiver Output Voltage
13
R1
IN
First Receiver Input Voltage
14
T1
OUT
First Transmitter Output Voltage
15
GND
Ground
16
V
CC
Supply Voltage
ST202E/ST232E
2/12
ELECTRICAL CHARACTERISTICS
(C
1
-C
4
= 0.1
F for ST202E, C
1
-C
4
= 1
F for ST232E, V
CC
= 5V
10% T
A
= -40 to 85
o
C,
unless otherwise specified. Typical Valus are referred to T
A
= 25
o
C)
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
I
SUPPLY
V
CC
Power Supply Current
No Load,
T
A
= 25
o
C
5
10
mA
ABSOLUTE MAXIMUM RATINGS (Note 1)
Symbol
Parameter
Val ue
Unit
V
CC
Supply Voltage
-0.3 to 6
V
V
+
Extra Positive Voltage
(V
CC
- 0.3) to 14
V
V
-
Extra Negative Voltage
-14 to 0.3
V
T
IN
Transmitter Input Voltage Range
-0.3 to (V+ + 0.3)
V
R
IN
Receiver Input Voltage Range
30
V
T
OUT
Transmitter Output Voltage Range
(V- - 0.3) to (V+ + 0.3)
V
R
OUT
Receiver Output Voltage Range
-0.3 to (V
CC
+ 0.3)
V
T
SCTOUT
Short Circuit Duration on T
OUT
infinite
T
stg
Storage Temperature Range
-65 to +150
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
TRANSMITTER ELECTRICAL CHARACTERISTICS
(C
1
-C
4
= 0.1
F for ST202E, C
1
-C
4
= 1
F for ST232, V
CC
= 5V
10%, T
A
= -40 to 85
o
C,
unless otherwise specified. Typical Valus are referred to T
A
= 25
o
C)
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
V
TOUT
Output Voltage Swing
All Transmitter outputs are loaded
with 3K
to GND
5
9
V
I
TIL
Logic Pull-Up Current
T
IN
= 0 V to V
CC
10
A
V
TIL
Input Logic Threshold Low
0.8
V
V
TIH
Input Logic Threshold High
2
V
SR
T
Transition Slew Rate
T
A
= 25
o
C, V
CC
= 5 V,
R
L
= 3 to 7 K
,
C
L
= 50 to 1000 pF (Note 1)
3
6
30
V/
s
D
R
Data Rate
R
L
= 3 to 7 K
, C
L
= 50 to 1000 pF
one trasmitter switching
230
400
Kbits/s
R
TOUT
Transmitter Output Resistance V
CC
= V+ = V- = 0V
V
OUT
=
2 V
300
I
SC
Transmitter Output Short
Circuit Current
10
60
mA
t
DT
Trasmitter Propagation Delay
R
L
= 3 K
, C
L
= 2500 pF
All trasmitter loaded
2
A
Note 1: Measured from 3V to -3Vor from -3V to 3V.
Note 2: One trasmitter output is loaded with R
L
= 3K
to7K
, C
L
= 50 to 1000pF
ST202E/ST232E
3/12
RECEIVER ELECTRICAL CHARACTERISTICS
(C
1
-C
4
= 0.1
F for ST202E, C
1
-C
4
= 1
F for ST232E, V
CC
= 5V
10%, T
A
= -40 to 85
o
C,
unless otherwise specified. Typical Valus are referred to T
A
= 25
o
C)
Symb ol
Parameter
T est Con ditio ns
Value
Un it
Min.
T yp.
Max.
V
RIN
Receiver Input Voltage
Operating Range
-30
30
V
R
RIN
RS-232 Input Resistance
T
A
= 25
o
C, V
CC
= 5 V
3
5
7
K
V
RIL
RS-232 Input Logic Threshold
Low
T
A
= 25
o
C, V
CC
= 5 V
0.8
1.2
V
V
RIH
RS-232 Input Logic Threshold
High
T
A
= 25
o
C, V
CC
= 5 V
1.7
2.4
V
V
RIHYS
RS-232 Input Hysteresis
V
CC
= 5 V
0.2
0.5
1
V
V
ROL
TTL/CMOS Output Voltage
Low
I
OUT
= 3.2mA
0.4
V
V
ROH
TTL/CMOS Output Voltage
High
I
OUT
= -1mA
3.5
V
CC
-0.4
V
t
dR
Propagation Delay Time
C
L
=150pF
0.5
10
s
ST202E/ST232E
4/12
APPLICATION CIRCUITS (note 1, note 2)
C4
+
C1
+
C1+
C1-
3
C2
+
C2+
C2-
4
5
11
10
12
9
TTL / CMOS OUTPUTS
TTL / CMOS INPUTS
V-
6
C5
+
+
C3
+5V INPUT
1
16
Vcc
V+
2
+10V
-10V
RS 232 OUTPUTS
RS 232 INPUTS
14
7
13
8
15
GND
5K
5K
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO -10V
VOLTAGE
INVERTER
T1
OUT
T1
IN
T2
IN
T2
OUT
T1
T2
R2
IN
R1
IN
R2
OUT
R1
OUT
R1
R2
Capacitance Value (
F)
DEVICES
C1
C2
C3
C4
C5
ST202E
0.1
0.1
0.1
0.1
0.1
ST232E
1
1
1
1
1
Note 1: C
1-4
capacitors can even be 1
F ones.
Note 2: C
1-4
canbe common or biased capacitors.
ST202E/ST232E
5/12