1
Rev. 7/01/03
SP3239 Intelligent +3.0V to +5.5V RS-232 Transceiver
Copyright 2003 Sipex Corporation
SP3239
Intelligent +3.0V to +5.5V RS-232 Transceivers
The SP3239 device is an RS-232 transceiver solution intended for portable or hand-held
applications such as notebook and palmtop computers. The SP3239 uses an internal
high-efficiency, charge-pump power supply that requires only 0.1
F capacitors in 3.3V
operation. This charge pump and Sipex's driver architecture allow the SP3239 device to
deliver compliant RS-232 performance from a single power supply ranging from +3.0V to
+5.0V. The SP3239 is a 5-driver/3-receiver device, ideal for laptop/notebook computer and
PDA applications. The SP3239 includes one complementary receiver that remains alert to
monitor an external device's Ring Indicate signal while the device is shutdown.
Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a +2.7V
power source
Minimum 250Kbps data rate under load
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
ESD Specifications:
+2kV Human Body Model
DESCRIPTION
SELECTION TABLE
Applicable U.S. Patents - 5,306,954; and other patents pending.
e
c
i
v
e
D
s
e
i
l
p
p
u
S
r
e
w
o
P
2
3
2
-
S
R
s
r
e
v
i
r
D
2
3
2
-
S
R
s
r
e
v
i
e
c
e
R
l
a
n
r
e
t
x
E
s
t
n
e
n
o
p
m
o
C
E
N
I
L
-
N
O
O
T
U
A
y
r
t
i
u
c
r
i
C
e
t
a
t
S
-
3
L
T
T
f
o
.
o
N
s
n
i
P
3
2
2
3
P
S
V
5
.
5
+
o
t
V
0
.
3
+
2
2
s
r
o
t
i
c
a
p
a
c
4
S
E
Y
S
E
Y
0
2
3
4
2
3
P
S
V
5
.
5
+
o
t
V
0
.
3
+
3
5
s
r
o
t
i
c
a
p
a
c
4
S
E
Y
S
E
Y
8
2
8
3
2
3
P
S
V
5
.
5
+
o
t
V
0
.
3
+
5
3
s
r
o
t
i
c
a
p
a
c
4
S
E
Y
S
E
Y
8
2
9
3
2
3
P
S
V
5
.
5
+
o
t
V
0
.
3
+
5
3
s
r
o
t
i
c
a
p
a
c
4
O
N
S
E
Y
8
2
9
4
2
3
P
S
V
5
.
5
+
o
t
V
0
.
3
+
5
3
s
r
o
t
i
c
a
p
a
c
4
O
N
O
N
4
2
Rev. 7/01/03
SP3239 Intelligent +3.0V to +5.5V RS-232 Transceiver
Copyright 2003 Sipex Corporation
2
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability and cause permanent damage to the
device.
V
CC
...................................................... -0.3V to +6.0V
V+ (NOTE 1) ...................................... -0.3V to +7.0V
V- (NOTE 1) ....................................... +0.3V to -7.0V
V+ + |V-| (NOTE 1) ........................................... +13V
I
CC
(DC V
CC
or GND current) ......................... +100mA
Input Voltages
SHUTDOWN, .................................... .-0.3V to +6.0V
RxIN .................................................................. +25V
Output Voltages
TxOUT ........................................................... +13.2V
RxOUT ..................................... -0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
TxOUT .................................................... Continuous
Storage Temperature ...................... -65
C to +150
C
Power Dissipation per package
28-pin SSOP
(derate 11.2mW/
o
C above +70
o
C).................900mW
28-pin TSSOP
(derate 13.2mW/
o
C above +70
o
C)...............1100mW
SPECIFICATIONS
V
CC
= +3.0 to +5.5, C1 -C4 = 0.1
F (tested at 3.3V + 5%), C1-C4 = 0.22
F (tested at 3.3V + 10%), C1 = 0.047
F, and C2-C4 = 0.33
F (tested at 5.0V
+ 10%), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
C.)
Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
R
E
T
E
M
A
R
A
P
.
N
I
M
.
P
Y
T
.
X
A
M
S
T
I
N
U
S
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I
D
N
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C
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C
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T
S
I
R
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T
C
A
R
A
H
C
C
D
n
w
o
d
t
u
h
S
,
t
n
e
r
r
u
C
y
l
p
p
u
S
0
.
1
0
1
A
,
D
N
G
=
N
W
O
D
T
U
H
S
V
r
o
D
N
G
=
N
I
x
T
C
C
t
n
e
r
r
u
C
y
l
p
p
u
S
3
.
0
0
.
1
A
m
V
=
N
W
O
D
T
U
H
S
C
C
,
d
a
o
l
o
n
S
T
U
P
T
U
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R
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V
I
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C
E
R
D
N
A
S
T
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N
I
C
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l
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h
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e
r
h
T
c
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o
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p
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I
4
.
2
8
.
0
V
V
C
C
N
I
x
T
,
V
0
.
5
+
r
o
V
3
.
3
+
=
N
W
O
D
T
U
H
S
t
n
e
r
r
u
C
e
g
a
k
a
e
L
t
u
p
n
I
+
1
0
.
0
+ 0
.
1
A
N
W
O
D
T
U
H
S
,
N
I
x
T
T
A
C
5
2
=
t
n
e
r
r
u
C
e
g
a
k
a
e
L
t
u
p
t
u
O
+
5
0
.
0
+ 0
1
A
d
e
l
b
a
s
i
D
s
r
e
v
i
e
c
e
R
W
O
L
e
g
a
t
l
o
V
t
u
p
t
u
O
4
.
0
V
I
T
U
O
A
m
6
.
1
=
H
G
I
H
e
g
a
t
l
o
V
t
u
p
t
u
O
V
C
C
6
.
0
-
V
C
C
1
.
0
-
V
I
T
U
O
A
m
0
.
1
-
=
3
Rev. 7/01/03
SP3239 Intelligent +3.0V to +5.5V RS-232 Transceiver
Copyright 2003 Sipex Corporation
SPECIFICATIONS
V
CC
= +3.0 to +5.5, C1 -C4 = 0.1
F (tested at 3.3V + 5%), C1-C4 = 0.22
F (tested at 3.3V + 10%), C1 = 0.047
F, and C2-C4 = 0.33
F (tested at 5.0V
+ 10%), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25
C.)
R
E
T
E
M
A
R
A
P
.
N
I
M
.
P
Y
T
.
X
A
M
S
T
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N
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T
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S
T
U
P
T
U
O
R
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V
I
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D
g
n
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w
S
e
g
a
t
l
o
V
t
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p
t
u
O
0
.
5
4
.
5
V
K
3
h
t
i
w
d
e
d
a
o
l
s
t
u
p
t
u
o
r
e
v
i
r
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l
l
A
D
N
G
o
t
e
c
n
a
t
s
i
s
e
R
t
u
p
t
u
O
0
0
3
V
C
C
V
,
V
0
=
-
V
=
+
V
=
T
U
O
V
2
=
t
n
e
r
r
u
C
t
i
u
c
r
i
C
-
t
r
o
h
S
t
u
p
t
u
O
5
3
0
6
A
m
V
T
U
O
D
N
G
=
S
T
U
P
N
I
R
E
V
I
E
C
E
R
e
g
n
a
R
e
g
a
t
l
o
V
t
u
p
n
I
5
2
-
5
2
V
W
O
L
d
l
o
h
s
e
r
h
T
t
u
p
n
I
6
.
0
2
.
1
V
V
C
C
V
3
.
3
=
W
O
L
d
l
o
h
s
e
r
h
T
t
u
p
n
I
8
.
0
5
.
1
V
V
C
C
V
0
.
5
=
H
G
I
H
d
l
o
h
s
e
r
h
T
t
u
p
n
I
5
.
1
4
.
2
V
V
C
C
V
3
.
3
=
H
G
I
H
d
l
o
h
s
e
r
h
T
t
u
p
n
I
8
.
1
4
.
2
V
V
C
C
V
0
.
5
=
s
i
s
e
r
e
t
s
y
H
t
u
p
n
I
5
.
0
V
e
c
n
a
t
s
i
s
e
R
t
u
p
n
I
3
5
7
k
S
C
I
T
S
I
R
E
T
C
A
R
A
H
C
G
N
I
M
I
T
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t
a
R
a
t
a
D
m
u
m
i
x
a
M
0
5
2
s
p
b
k
R
L
k
3
=
,
C
L
r
e
v
i
r
d
e
n
o
,
F
p
0
0
0
1
=
g
n
i
h
c
t
i
w
s
y
a
l
e
D
n
o
i
t
a
g
a
p
o
r
P
r
e
v
i
e
c
e
R
t
L
H
P
t
H
L
P
5
1
.
0
5
1
.
0
S
,
t
u
p
t
u
o
r
e
v
i
e
c
e
r
o
t
t
u
p
n
i
r
e
v
i
e
c
e
R
C
L
F
p
0
5
1
=
e
m
i
T
e
l
b
a
n
E
t
u
p
t
u
O
r
e
v
i
e
c
e
R
0
0
2
s
n
n
o
i
t
a
r
e
p
o
l
a
m
r
o
N
e
m
i
T
e
l
b
a
s
i
D
t
u
p
t
u
O
r
e
v
i
e
c
e
R
0
0
2
s
n
n
o
i
t
a
r
e
p
o
l
a
m
r
o
N
w
e
k
S
r
e
v
i
r
D
0
0
1
s
n
t
I
H
L
P
t
-
L
H
P
T
,
I
A
5
2
=
O
C
w
e
k
S
r
e
v
i
e
c
e
R
0
5
s
n
t
I
H
L
P
t
-
L
H
P
I
e
t
a
R
w
e
l
S
n
o
i
g
e
R
-
n
o
i
t
i
s
n
a
r
T
0
3
/
V
s
V
C
C
R
,
V
3
.
3
=
L
k
3
=
,
T
B
M
A
5
2
=
O
,
C
o
t
V
0
.
3
-
m
o
r
f
n
e
k
a
t
s
t
n
e
m
e
r
u
s
a
e
m
V
0
.
3
-
o
t
V
0
.
3
+
r
o
V
0
.
3
+
Rev. 7/01/03
SP3239 Intelligent +3.0V to +5.5V RS-232 Transceiver
Copyright 2003 Sipex Corporation
4
TYPICAL PERFOMANCE CHARACTERISTICS
Unless otherwise noted, the following perfomance characteristics apply for V
CC
= +3.3V, 250kbps data rate, all drivers loaded with 3k
,
0.1
F charge
pump capacitors, and T
AMB
= +25
C.
TRANSMITTER OUTPUT vs. LOAD CAPACITANCE
-6
-4
-2
0
2
4
6
0
1000
2000
3000
4000
5000
pF
VOH
VOL
SLEW RATE vs. LOAD CAPACITANCE
0
5
10
15
20
25
0
1000
2000
3000
4000
5000
pF
POS. SR
NEG SR
Figure 3. Supply Current VS. Load Capacitance when
Transmitting Data
SUPPLY CURRENT vs LOAD CAPACITANCE
0
10
20
30
40
50
60
0
1000
2000
3000
4000
5000
pF
250Kbps
120Kbps
20Kbps
5
Rev. 7/01/03
SP3239 Intelligent +3.0V to +5.5V RS-232 Transceiver
Copyright 2003 Sipex Corporation
Table 1. Device Pin Description
E
M
A
N
N
O
I
T
C
N
U
F
N
I
P
.
O
N
+
2
C
.
2
C
r
o
t
i
c
a
p
a
c
p
m
u
p
-
e
g
r
a
h
c
l
a
c
i
r
t
e
m
m
y
s
e
h
t
f
o
l
a
n
i
m
r
e
t
e
v
i
t
i
s
o
P
1
D
N
G
.
d
n
u
o
r
G
2
-
2
C
.
2
C
r
o
t
i
c
a
p
a
c
p
m
u
p
-
e
g
r
a
h
c
l
a
c
i
r
t
e
m
m
y
s
e
h
t
f
o
l
a
n
i
m
r
e
t
e
v
i
t
a
g
e
N
3
-
V
.
p
m
u
p
e
g
r
a
h
c
e
h
t
y
b
d
e
t
a
r
e
n
e
g
t
u
p
t
u
o
V
5
.
5
-
d
e
t
a
l
u
g
e
R
4
T
1
T
U
O
.
t
u
p
t
u
o
r
e
v
i
r
d
2
3
2
-
S
R
5
T
2
T
U
O
.
t
u
p
t
u
o
r
e
v
i
r
d
2
3
2
-
S
R
6
T
3
T
U
O
.
t
u
p
t
u
o
r
e
v
i
r
d
2
3
2
-
S
R
7
R
1
N
I
.
t
u
p
n
i
r
e
v
i
e
c
e
r
2
3
2
-
S
R
8
R
2
N
I
.
t
u
p
n
i
r
e
v
i
e
c
e
r
2
3
2
-
S
R
9
T
4
T
U
O
.
t
u
p
t
u
o
r
e
v
i
r
d
2
3
2
-
S
R
0
1
R
3
N
I
.
t
u
p
n
i
r
e
v
i
e
c
e
r
2
3
2
-
S
R
1
1
T
5
T
U
O
.
t
u
p
t
u
o
r
e
v
i
r
d
2
3
2
-
S
R
2
1
C
N
.
t
c
e
n
n
o
c
o
N
3
1
N
W
O
D
T
U
H
S
.
p
m
u
p
e
g
r
a
h
c
d
n
a
s
r
e
v
i
r
d
n
w
o
d
t
u
h
s
o
t
W
O
L
c
i
g
o
l
y
l
p
p
A
4
1
C
N
.
n
o
i
t
a
r
e
p
o
l
a
m
r
o
n
r
o
f
H
G
I
H
e
i
t
r
o
t
c
e
n
n
o
C
o
N
5
1
R
1
T
U
O
.
n
w
o
d
t
u
h
s
n
i
e
v
i
t
c
a
,
t
u
p
t
u
o
1
-
r
e
v
i
e
c
e
r
g
n
i
t
r
e
v
n
i
-
n
o
N
6
1
T
5
N
I
.
t
u
p
n
i
r
e
v
i
r
d
S
O
M
C
/
L
T
T
7
1
R
3
T
U
O
.
t
u
p
t
u
o
r
e
v
i
e
c
e
r
S
O
M
C
/
L
T
T
8
1
T
4
N
I
.
t
u
p
n
i
r
e
v
i
r
d
S
O
M
C
/
L
T
T
9
1
R
2
T
U
O
.
t
u
p
t
u
o
r
e
v
i
e
c
e
r
S
O
M
C
/
L
T
T
0
2
R
1
T
U
O
.
t
u
p
t
u
o
r
e
v
i
e
c
e
r
S
O
M
C
/
L
T
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P
8
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PIN DESCRIPTION
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ZIP