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Datasheet> All Categories > Analog mixed-signal IC> Drivers and interfaces> SP3238EY
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SP3238EY

Description
Line Transceiver, 3 Func, 5 Driver, 3 Rcvr, PDSO28, TSSOP-28
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size241KB，19 Pages
ManufacturerExar
Download Datasheet Parametric Compare View All

SP3238EY Overview

Line Transceiver, 3 Func, 5 Driver, 3 Rcvr, PDSO28, TSSOP-28

SP3238EY Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerExar
Parts packaging codeTSSOP
package instructionTSSOP, TSSOP28,.25
Contacts28
Reach Compliance Codeunknown
ECCN codeEAR99
Differential outputNO
Number of drives5
Input propertiesSCHMITT TRIGGER
Interface integrated circuit typeLINE TRANSCEIVER
Interface standardsEIA-232-F; TIA-232-F; V.24; V.28; EIA-562; TIA-562
JESD-30 codeR-PDSO-G28
JESD-609 codee0
length9.7 mm
Humidity sensitivity level1
Number of functions3
Number of terminals28
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Minimum output swing10 V
Maximum output low current0.0016 A
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP28,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)240
power supply3.3/5 V
Certification statusNot Qualified
Maximum receive delay
Number of receiver bits3
Maximum seat height1.2 mm
Maximum slew rate1 mA
Maximum supply voltage5.5 V
Minimum supply voltage3 V
Nominal supply voltage3.3 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width4.4 mm

SP3238EY Preview

®
SP3238
Intelligent +3.0V to +5.5V RS-232 Transceiver
FEATURES
■
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
■
AUTO ON-LINE
®
circuitry automatically
wakes up from a 1µA shutdown
■
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
C2+ 1
GND 2
C2- 3
V- 4
T1OUT 5
T2OUT 6
T3OUT 7
R1IN 8
R2IN 9
T4OUT 10
R3IN 11
T5OUT 12
ONLINE 13
SHUTDOWN 14
SP3238
28 C1+
27
26
25
V+
V
CC
C1-
24 T1IN
23 T2IN
22 T3IN
21 R1OUT
20
R2OUT
19 T4IN
18
17
16
R3OUT
T5IN
R1OUT
15 STATUS
Now Available in Lead Free Packaging
DESCRIPTION
The SP3238 device is an RS-232 transceiver solution intended for portable or hand-held
applications such as notebook and palmtop computers. The SP3238 uses an internal
high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V
operation. This charge pump and Sipex's driver architecture allow the SP3238 device to
deliver compliant RS-232 performance from a single power supply ranging from +3.0V to
+5.0V. The SP3238 is a 5-driver/3-receiver device, ideal for laptop/notebook computer and
PDA applications. The SP3238 includes one complementary receiver that remains alert to
monitor an external device's Ring Indicate signal while the device is shutdown.
The
AUTO ON-LINE
®
feature allows the device to automatically "wake-up" during a shutdown
state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise,
the device automatically shuts itself down drawing less than 1µA.
SELECTION TABLE
Device
SP3220
SP3223
SP3243
SP3238
Power Supplies
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
RS-232
Drivers
1
2
3
5
RS-232
Receivers
1
2
5
3
External
Components
4 capacitors
4 capacitors
4 capacitors
4 capacitors
AUTO ON-LINE
®
TTL 3-State
YES
YES
YES
YES
Circuitry
NO
YES
YES
YES
No. of
Pins
16
20
28
28
Applicable U.S. Patents - 5,306,954; and other patents pending.
Rev. 6/30/03
SP3238 Intelligent +3.0V to +5.5V RS-232 Transceiver
© Copyright 2003 Sipex Corporation
1
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
TxIN, ONLINE,
SHUTDOWN, .....................................-0.3V to +6.0V
RxIN...................................................................+25V
Output Voltages
TxOUT.............................................................+13.2V
RxOUT, STATUS.......................-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
Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
ELECTRICAL CHARACTERISTICS
V
CC
= +3.0 to +5.5, C1 -C4 = 0.1µF (tested at 3.3V + 5%), C1-C4 = 0.22µF (tested at 3.3V + 10%), C1 = 0.047µF, and C2-C4 = 0.33µF (tested at 5.0V
+ 10%), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DC CHARACTERISTICS
Supply Current, AUTO ON-LINE
®
MIN.
TYP.
MAX.
UNITS
CONDITIONS
1.0
10
µA
All RxIN open, ONLINE = GND,
SHUTDOWN = V
CC
, all TxIN=GND
or V
CC
SHUTDOWN=GND, all TxIN=GND
or V
CC
ONLINE = SHUTDOWN = V
CC
,
no load, all TxIN=GND or V
CC
Supply Current, Shutdown
Supply Current, AUTO ON-LINE
®
Disabled
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold
LOW
HIGH
Input Leakage Current
Output Leakage Current
Output Voltage LOW
Output Voltage HIGH
V
CC
- 0.6
1.0
0.3
10
1.0
µA
mA
0.8
2.4
+0.01
+0.05
+1.0
+10
0.4
V
CC
- 0.1
V
µA
µA
V
V
V
CC
= +3.3V or +5.0V, TxIN
ONLINE, SHUTDOWN
TxIN, ONLINE, SHUTDOWN
T
A
= 25° C
Receivers Disabled
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Rev. 6/30/03
SP3238 Intelligent +3.0V to +5.5V RS-232 Transceiver
© Copyright 2003 Sipex Corporation
2
ELECTRICAL CHARACTERISTICS
V
CC
= +3.0 to +5.5, C1 -C4 = 0.1µF (tested at 3.3V + 5%), C1-C4 = 0.22µF (tested at 3.3V + 10%), C1 = 0.047µF, and C2-C4 = 0.33µF (tested at 5.0V
+ 10%), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DRIVER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
RECEIVER INPUTS
Input Voltage Range
Input Threshold LOW
Input Threshold LOW
Input Threshold HIGH
Input Threshold HIGH
Input Hysteresis
Input Resistance
MIN.
TYP.
MAX.
UNITS
CONDITIONS
±5.0
30 0
±5.4
V
Ω
All driver outputs loaded with 3K
Ω
to GND
V
CC
= V+ = V- = 0V, V
OUT
= ±2V
V
OUT
= GND
±35
±60
mA
-25
0.6
0.8
1.2
1.5
1.5
1.8
0. 5
3
5
25
V
V
V
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
2.4
2.4
V
V
V
7
kΩ
AUTO ON-LINE
®
CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = V
CC
)
STATUS Output Voltage LOW
STATUS Output Voltage HIGH
Receiver Threshold to Drivers
Enabled (t
ONLINE
)
Receiver Positive or Negative
Threshold to STATUS HIGH
(t
STSH
)
Receiver Positive or Negative
Threshold to STATUS LOW
(t
STSL
)
V
CC
- 0.6
200
0.5
0.4
V
V
µS
µS
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Figure 10
Figure 10
20
µS
Figure 10
Rev. 6/30/03
SP3238 Intelligent +3.0V to +5.5V RS-232 Transceiver
© Copyright 2003 Sipex Corporation
3
ELECTRICAL CHARACTERISTICS
V
CC
= +3.0 to +5.5, C1 -C4 = 0.1µF (tested at 3.3V + 5%), C1-C4 = 0.22µF (tested at 3.3V + 10%), C1 = 0.047µF, and C2-C4 = 0.33µF (tested at 5.0V
+ 10%), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
TIMING CHARACTERISTICS
Maximum Data Rate
Receiver Propagation Delay
t
PHL
t
PLH
Receiver Output Enable Time
Receiver Output Disable Time
Driver Skew
Receiver Skew
Transition-Region Slew Rate
MIN.
TYP.
MAX.
UNITS
CONDITIONS
250
kbps
R
L
= 3k
Ω
,
C
L
= 1000pF, one driver
switching
Receiver input to receiver output,
C
L
= 150pF
Normal operation
Normal operation
I t
PLH
- t
PHL
I,T
A
= 25
O
C
I t
PLH
- t
PHL
I
V
CC
= 3.3V, R
L
= 3k
Ω
,
T
AMB
= 25
O
C,
measurements taken from -3.0V to
+3.0V or +3.0V to -3.0V
0.15
0.15
200
200
100
50
30
µS
ns
ns
ns
ns
V/
µs
TYPICAL PERFOMANCE CHARACTERISTICS
Unless otherwise noted, the following perfomance characteristics apply for V
CC
= +3.3V, 250kbps data rate, all drivers loaded with 3kΩ, 0.1µF charge
pump capacitors, and T
AMB
= +25°C.
TRANSMITTER OUTPUT vs. LOAD CAPACITANCE
6
4
2
0
-2 0
-4
-6
pF
1000
2000
3000
4000
5000
VOH
VOL
25
20
15
10
5
0
0
1000
2000
pF
3000
4000
5000
POS. SR
NEG SR
SLEW RATE vs. LOAD CAPACITANCE
Rev. 6/30/03
SP3238 Intelligent +3.0V to +5.5V RS-232 Transceiver
© Copyright 2003 Sipex Corporation
4
PIN DESCRIPTION
NAME
C2+
GND
C2-
V-
T
1
OUT
T
2
OUT
T
3
OUT
R
1
IN
R
2
IN
T
4
OUT
R
3
IN
T
5
OUT
ONLINE
SHUTDOWN
STATUS
R
1
O UT
T
5
IN
R
3
O UT
T
4
IN
R
2
O UT
R
1
O UT
T
3
IN
T
2
IN
T
1
IN
C1-
V
CC
V+
C1+
FUNCTION
Positive terminal of the symmetrical charge-pump capacitor C2.
Ground.
Negative terminal of the symmetrical charge-pump capacitor C2.
Regulated -5.5V output generated by the charge pump.
RS-232 driver output.
RS-232 driver output.
RS-232 driver output.
RS-232 receiver input.
RS-232 receiver input.
RS-232 driver output.
RS-232 receiver input.
RS-232 driver output.
Apply logic HIGH to override
AUTO ON-LINE
®
circuitry keeping drivers active
(SHUTDOWN must also be logic HIGH, refer to Table 2).
Apply logic LOW to shut down drivers and charge pump. This overrides all
AUTO
ON-LINE
®
circuitry and ONLINE (refer to Table 2).
TTL/CMOS Output indicating if a RS-232 signal is present on any receiver input.
Non-inverting receiver-1 output, active in shutdown.
TTL/CMOS driver input.
TTL/CMOS receiver output.
TTL/CMOS driver input.
TTL/CMOS receiver output.
TTL/CMOS receiver output.
TTL/CMOS driver input.
TTL/CMOS driver input.
TTL/CMOS driver input.
Negative terminal of the symmetrical charge-pump capacitor C1.
+3.0V to +5.5V supply voltage.
Regulated +5.5V output generated by the charge pump.
Positive terminal of the symmetrical charge-pump capacitor C1
PIN
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Table 1. Device Pin Description
Rev. 6/30/03
SP3238 Intelligent +3.0V to +5.5V RS-232 Transceiver
© Copyright 2003 Sipex Corporation
5
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SP3238EY Related Products

SP3238EY SP3238EA SP3238EA/TR SP3238CY/TR
Description Line Transceiver, 3 Func, 5 Driver, 3 Rcvr, PDSO28, TSSOP-28 Line Transceiver, 3 Func, 5 Driver, 3 Rcvr, PDSO28, PLASTIC, SSOP-28 Line Transceiver, 3 Func, 5 Driver, 3 Rcvr, PDSO28, PLASTIC, SSOP-28 Line Transceiver, 3 Func, 5 Driver, 3 Rcvr, PDSO28, TSSOP-28
Maker Exar Exar Exar Exar
Parts packaging code TSSOP SSOP SSOP TSSOP
package instruction TSSOP, TSSOP28,.25 PLASTIC, SSOP-28 SSOP, TSSOP, TSSOP28,.25
Contacts 28 28 28 28
Reach Compliance Code unknown unknown unknown unknown
ECCN code EAR99 EAR99 EAR99 EAR99
Differential output NO NO NO NO
Number of drives 5 5 5 5
Input properties SCHMITT TRIGGER SCHMITT TRIGGER SCHMITT TRIGGER SCHMITT TRIGGER
Interface integrated circuit type LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER LINE TRANSCEIVER
Interface standards EIA-232-F; TIA-232-F; V.24; V.28; EIA-562; TIA-562 EIA-232-F; TIA-232-F; V.24; V.28; EIA-562; TIA-562 EIA-232-F; TIA-232-F; V.24; V.28; EIA-562; TIA-562 EIA-232-F; TIA-232-F; V.24; V.28; EIA-562; TIA-562
JESD-30 code R-PDSO-G28 R-PDSO-G28 R-PDSO-G28 R-PDSO-G28
length 9.7 mm 10.2 mm 10.2 mm 9.7 mm
Number of functions 3 3 3 3
Number of terminals 28 28 28 28
Maximum operating temperature 85 °C 85 °C 85 °C 70 °C
Minimum operating temperature -40 °C -40 °C -40 °C -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP SSOP SSOP TSSOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
Number of receiver bits 3 3 3 3
Maximum seat height 1.2 mm 1.99 mm 1.99 mm 1.2 mm
Maximum supply voltage 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage 3 V 3 V 3 V 3 V
Nominal supply voltage 3.3 V 3.3 V 3.3 V 3.3 V
surface mount YES YES YES YES
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL COMMERCIAL
Terminal form GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm 0.65 mm 0.65 mm
Terminal location DUAL DUAL DUAL DUAL
width 4.4 mm 5.29 mm 5.29 mm 4.4 mm
JESD-609 code e0 - e0 e0
Humidity sensitivity level 1 - 2 1
Peak Reflow Temperature (Celsius) 240 - 240 240
Terminal surface Tin/Lead (Sn/Pb) - TIN LEAD Tin/Lead (Sn/Pb)
Maximum time at peak reflow temperature 30 - 30 30

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