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Электронный компонент: SP202EEN

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Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
1
SP202E/232E/233E/310E/312E
Operates from Single +5V Power Supply
Meets All RS-232D and ITU V.28
Specifications
Operates with 0.1
F to 10
F Capacitors
High Data Rate 120Kbps Under Load
Low Power Shutdown
1
A (Typical)
3-State TTL/CMOS Receiver Outputs
Low Power CMOS 3mA Operation
Improved ESD Specifications:
15kV Human Body Model
15kV IEC1000-4-2 Air Discharge
8kV IEC1000-4-2 Contact Discharge
DESCRIPTION...
The SP202E/232E/233E/310E/312E devices are a family of line driver and receiver pairs that
meet the specifications of RS-232 and V.28 serial protocols with enhanced ESD performance.
The ESD tolerance has been improved on these devices to over
15KV for both Human Body
Model and IEC1000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with
Sipex's SP232A/233A/310A/312A devices as well as popular industry standards. As with the
initial versions, the SP202E/232E/233E/310E/312E devices feature at least 120Kbps data rate
under load, 0.1
F charge pump capacitors, and overall ruggedness for commercial applications.
This family also features Sipex's BiCMOS design allowing low power operation without
sacrificing performance. The series is available in plastic and ceramic DIP and SOIC packages
operating over the commercial, industrial and military temperature ranges.
Number of RS232
No. of Receivers
No. of External
Model
Drivers
Receivers
Active in Shutdown 0.1
F Capacitors
Shutdown WakeUp TTL TriState
SP202E
2
2
0
4
No
No
No
SP232E
2
2
0
4
No
No
No
SP233E
2
2
0
0
No
No
No
SP310E
2
2
0
4
Yes
No
Yes
SP312E
2
2
2
4
Yes
Yes
Yes
High-Performance RS-232
Line Drivers/Receivers
Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
2
ABSOLUTE MAXIMUM RATINGS
This is a stress rating only and functional operation of the device at
these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect
reliability.
V
cc
.................................................................................................................................................................
+6V
V
+
....................................................................................................................
(Vcc-0.3V) to +11.0V
V
-
............................................................................................................................................................
-11.0V
Input Voltages
T
IN
.........................................................................................................................
-0.3 to (Vcc +0.3V)
R
IN
............................................................................................................................................................
15V
Output Voltages
T
OUT
....................................................................................................
(V+, +0.3V) to (V-, -0.3V)
R
OUT
................................................................................................................
-0.3V to (Vcc +0.3V)
Short Circuit Duration
T
OUT
.........................................................................................................................................
Continuous
Power Dissipation
CERDIP .............................................................................. 675mW
(derate 9.5mW/
C above +70
C)
Plastic DIP .......................................................................... 375mW
(derate 7mW/
C above +70
C)
Small Outline ...................................................................... 375mW
(derate 7mW/
C above +70
C)
SPECIFICATIONS
V
CC
=+5V
10%; V+=+8.5V to +13.2V (SP231A only) 0.1
F charge pump capacitors; T
MIN
to T
MAX
unless otherwise noted.
PARAMETERS
MIN.
TYP.
MAX.
UNITS
CONDITIONS
TTL INPUT
Logic Threshold
LOW
0.8
Volts
T
IN
; EN, SD
HIGH
2.0
Volts
T
IN
; EN, SD
Logic Pull-Up Current
15
200
A
T
IN
= 0V
TTL OUTPUT
TTL/CMOS Output
Voltage, Low
0.4
Volts
I
OUT
= 3.2mA; Vcc = +5V
Voltage, High
3.5
Volts
I
OUT
= -1.0mA
Leakage Current **; T
A
= +25
0.05
10
A
EN = V
CC
, 0V
V
OUT
V
CC
RS-232 OUTPUT
Output Voltage Swing
5
9
Volts
All transmitter outputs loaded
with 3k
to Ground
Output Resistance
300
Ohms
V
CC
= 0V; V
OUT
=
2V
Output Short Circuit Current
18
mA
Infinite duration
Maximum Data Rate
120
240
Kbps
C
L
= 2500pF, R
L
= 3k
RS-232 INPUT
Voltage Range
-15
+15
Volts
Voltage Threshold
LOW
0.8
1.2
Volts
V
CC
= 5V, T
A
= +25
C
HIGH
1.7
2.8
Volts
V
CC
= 5V, T
A
= +25
C
Hysteresis
0.2
0.5
1.0
Volts
V
CC
= 5V, T
A
= +25
C
Resistance
3
5
7
k
T
A
= +25
C, -15V
V
IN
+15V
DYNAMIC CHARACTERISTICS
Driver Propagation Delay
1.5
3.0
s
TTL to RS-232; C
L
= 50pF
Receiver Propagation Delay
0.1
1.0
s
RS-232 to TTL
Instantaneous Slew Rate
30
V/
s
C
L
= 10pF, R
L
= 3-7k
;
T
A
=+25
C
Transition Region Slew Rate
10
V/
s
C
L
= 2500pF, R
L
= 3k
;
measured from +3V to -3V
or -3V to +3V
Output Enable Time **
400
ns
SP310E and SP312E only
Output Disable Time **
250
ns
SP310E and SP312E only
POWER REQUIREMENTS
V
CC
Power Supply Current
3
5
mA
No load, T
A
= +25
C; V
CC
= 5V
15
mA
All transmitters R
L
= 3k
;
T
A
= +25
C
Shutdown Supply Current **
1
5
A
V
CC
= 5V, T
A
= +25
C
**SP310E and SP312E only
Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
3
PERFORMANCE CURVES
-55
-40
0
25
70
85
125
Temperature (C)
0
5
10
15
20
25
30
VCC = 6V
VCC = 5V
VCC = 4V
VCC = 3V
I CC
(mA)
4.5
4.75
5.0
5.25
5.5
VCC (Volts)
6.8
7.4
7.6
7.8
8.0
8.2
8.4
Load current = 0mA
T
A
= 25C
V
OH
(Volts)
7.0
7.2
0
5
10
15
20
Load Current (mA)
0
6
8
10
12
V+ (Volts)
2
4
VCC = 5V
VCC = 4V
VCC = 6V
25
30
35
40
0
2
4
6
8
10
12
14
Load Current (mA)
V Voltage (Volts)
-3
-4
-5
-6
-7
-8
-9
-10
-11
VCC = 6V
VCC = 5V
VCC = 4V
PINOUT...
R
2
OUT
R
2
IN
T
2
OUT
V-
C
2
-
C
2
+
V+
C
1
-
V-
C
2
+
T
2
IN
T
1
IN
R
1
OUT
R
1
IN
T
1
OUT
GND
V
CC
C
1
+
GND
C
2
-
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
SP233ECP
20-PIN PLASTIC DIP
R
2
OUT
R
2
IN
T
2
OUT
V-
C
2
-
C
2
+
C
1
C
1
+
C
2
+
C
2
T
2
IN
T
1
IN
R
1
OUT
R
1
IN
T
1
OUT
GND
V
CC
V+
GND
V
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
SP233ECT
20-PIN SOIC
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T
2
OUT
R
2
IN
SP232E
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SHUTDOWN
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
EN
*
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T
2
OUT
R
2
IN
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
SP312E
ON/OFF
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
NC
*
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T
2
OUT
R
2
IN
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
SP310E
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T
2
OUT
R
2
IN
SP202E
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SHDN
V
CC
GND
T1OUT
R1IN
R1OUT
N.C.
T1IN
T2IN
N.C.
C1+
V+
C1-
C2+
C2-
V-
T2OUT
R2IN
R2OUT
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
SP310E_A/312E_A
20-PIN SSOP
N.C./EN
*
N.C. for SP310E_A, EN for SP312E_A
Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
4
R
2
9
8
R IN
R OUT
2
R
1
12
13
R IN
R OUT
1
T
2
10
7
T IN
2
T OUT
2
T
1
11
14
T IN
1
T OUT
1
15
GND
400k
400k
TTL/CMOS INPUTS
RS-232 OUTPUTS
3
1
C +
C -
1
1
6
16
V
CC
V+
+
+
0.1 F
6.3V
+5V to +10V
Voltage Doubler
+5V INPUT
2
V-
TTL/CMOS OUTPUTS
RS-232 INPUTS
2
1
5k
0.1 F
16V
5k
5
4
C +
C -
2
2
+
0.1 F
16V
+10V to -10V
Voltage Inverter
0.1 F 6.3V
10 F 6.3V
SP232E
+
+
*
*The negative terminal of the V+ storage capacitor can be tied
to either V
CC
or GND. Connecting the capacitor to V
CC
(+5V)
is recommended.
SP202E
Figure 1. Typical Circuit using the SP202E or SP232E.
FEATURES...
The SP202E/232E/233E/310E/312E devices
are a family of line driver and receiver pairs that
meet the specifications of RS-232 and V.28
serial protocols with enhanced ESD perfor-
mance. The ESD tolerance has been improved
on these devices to over
15KV for both Human
Body Model and IEC1000-4-2 Air Discharge
Method. These devices are pin-to-pin compat-
ible with Sipex's 232A/233A/310A/312A
devices as well as popular industry standards.
As with the initial versions, the SP202E/232E/
233E/310E/312E
devices feature10V/
s slew
rate, 120Kbps data rate under load, 0.1
F
charge pump capacitors, overall ruggedness
for commercial applications, and increased drive
current for longer and more flexible cable
configurations. This family also features Sipex's
BiCMOS design allowing low power operation
without sacrificing performance.
The SP202E/232E/233E/310E/312E devices
have internal charge pump voltage converters
which allow them to operate from a single +5V
supply. The charge pumps will operate with
polarized or non-polarized capacitors ranging
from 0.1 to 10
F and will generate the 10V
needed to generate the RS-232 output levels.
Both meet all EIA RS-232 and ITU V.28
specifications.
The SP310E provides identical features as the
SP232E with a single control line which
simultaneously shuts down the internal DC/DC
converter and puts all transmitter and receiver
outputs into a high impedance state. The SP312E
is identical to the SP310E with separate tri-state
and shutdown control lines.
THEORY OF OPERATION
The SP232E, SP233E, SP310E and SP312E
devices are made up of three basic circuit blocks
1) a driver/transmitter, 2) a receiver and 3) a charge
pump. Each block is described below.
Driver/Transmitter
The drivers are inverting transmitters, which ac-
cept TTL or CMOS inputs and output the RS-232
signals with an inverted sense relative to the input
logic levels. Typically the RS-232 output voltage
swing is
9V. Even under worst case loading
conditions of 3kOhms and 2500pF, the output is
guaranteed to be
5V, which is consistent with the
RS-232 standard specifications. The transmitter
outputs are protected against infinite short-circuits
to ground without degradation in reliability.
Rev. 06/20/02
SP202E Series High Performance RS232 Transceivers
Copyright 2002 Sipex Corporation
5
The instantaneous slew rate of the transmitter
output is internally limited to a maximum of 30V/
s in order to meet the standards [EIA RS-232-D
2.1.7, Paragraph (5)]. However, the transition re-
gion slew rate of these enhanced products is typi-
cally 10V/
s. The smooth transition of the loaded
output from V
OL
to V
OH
clearly meets the mono-
tonicity requirements of the standard [EIA
RS-232-D 2.1.7, Paragraphs (1) & (2)].
Receivers
The receivers convert RS-232 input signals to
inverted TTL signals. Since the input is usually
from a transmission line, where long cable lengths
and system interference can degrade the signal, the
inputs have a typical hysteresis margin of 500mV.
This ensures that the receiver is virtually immune
to noisy transmission lines.
The input thresholds are 0.8V minimum and 2.4V
maximum, again well within the
3V RS-232
requirements. The receiver inputs are also pro-
tected against voltages up to
15V. Should an
input be left unconnected, a 5KOhm pulldown
resistor to ground will commit the output of the
receiver to a high state.
R
2
20
19
R IN
R OUT
2
R
1
3
4
R IN
R OUT
1
T
2
1
18
T IN
2
T OUT
2
T
1
2
5
T IN
1
T OUT
1
9
GND
400k
400k
TTL/CMOS INPUTS
RS-232 OUTPUTS
14
13
C +
C -
V-
V-
V+
1
1
11
7
V
CC
+5V INPUT
12
TTL/CMOS OUTPUTS
RS-232 INPUTS
2
1
5k
5k
17
10
C +
C +
C -
C -
2
2
GND
6
8
15
16
2
2
Do not make
connection to
these pins
Internal
-10V Power
Supply
Internal
+10V Power
Supply
SP233ECT
R
2
20
19
R IN
R OUT
2
R
1
3
4
R IN
R OUT
1
T
2
1
18
T IN
2
T OUT
2
T
1
2
5
T IN
1
T OUT
1
9
GND
400k
400k
TTL/CMOS INPUTS
RS-232 OUTPUTS
13
8
C +
C -
V-
V-
V+
1
1
10
7
V
CC
+5V INPUT
11
TTL/CMOS OUTPUTS
RS-232 INPUTS
2
1
5k
5k
17
12
C +
C +
C -
C -
2
2
GND
6
14
15
16
2
2
Do not make
connection to
these pins
Internal
-10V Power
Supply
Internal
+10V Power
Supply
SP233ECP
Figure 2. Typical Circuits using the SP233ECP and SP233ECT
R
2
10
9
R IN
R OUT
2
R
1
13
14
R IN
R OUT
1
T
2
11
8
T IN
2
T OUT
2
T
1
12
15
T IN
1
T OUT
1
16
GND
400k
400k
TTL/CMOS INPUTS
RS-232 OUTPUTS
4
2
C +
C -
1
1
7
17
V
CC
V+
+
+
0.1 F
6.3V
+5V to +10V
Voltage Doubler
+5V INPUT
3
V-
TTL/CMOS OUTPUTS
RS-232 INPUTS
2
1
5k
5k
6
5
C +
C -
2
2
+
0.1 F
16V
+10V to -10V
Voltage Inverter
10 F 6.3V
SP310E
+
18
ON/OFF
+
0.1
F
16V
*
*The negative terminal of the V+ storage capacitor can be tied
to either V
CC
or GND. Connecting the capacitor to V
CC
(+5V)
is recommended.
0.1
F
16V
R
2
10
9
R IN
R OUT
2
R
1
13
14
R IN
R OUT
1
T
2
11
8
T IN
2
T OUT
2
T
1
12
15
T IN
1
T OUT
1
16
GND
400k
400k
TTL/CMOS INPUTS
RS-232 OUTPUTS
4
2
C +
C -
1
1
7
17
V
CC
V+
+
+
0.1 F
6.3V
+5V to +10V
Voltage Doubler
+5V INPUT
3
V-
TTL/CMOS OUTPUTS
RS-232 INPUTS
2
1
5k
0.1 F
16V
5k
6
5
C +
C -
2
2
+
0.1 F
16V
+10V to -10V
Voltage Inverter
10 F 6.3V
SP312E
+
18
SHUTDOWN
1
EN
+
0.1 F
16V
*
*The negative terminal of the V+ storage capacitor can be tied
to either V
CC
or GND. Connecting the capacitor to V
CC
(+5V)
is recommended.
Figure 3. Typical Circuits using the SP310E and SP312E