SP3243EET-L Exar Corporation, SP3243EET-L Datasheet

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SP3243EET-L

Manufacturer Part Number
SP3243EET-L
Description
IC TXRX RS232 INTELLIGNT 28WSOIC
Manufacturer
Exar Corporation
Type
Transceiverr
Datasheets

Specifications of SP3243EET-L

Package / Case
28-SOIC (0.300", 7.50mm Width)
Number Of Drivers/receivers
3/5
Protocol
RS232
Voltage - Supply
3 V ~ 5.5 V
Mounting Type
Surface Mount
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Function
Transceiver
Mounting Style
SMD/SMT
Supply Current
1 uA
Supply Voltage (max)
5.5 V
Supply Voltage (min)
3 V
Logic Type
RS-232 Transceivers
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
1016-1122-5
FEATURES
■ Meets true EIA/TIA-232-F Standards
■ Interoperable with EIA/TIA-232 and
■ AUTO ON-LINE
■ Regulated Charge Pump Yields Stable
■ Enhanced ESD Specifications:
■ 250 Kbps min. transmission rate (EB)
■ 1000 Kbps min. transmission rate (EU)
■ Ideal for High Speed RS-232 Applications
The SP3243E products are 3 driver/5 receiver RS-232 transceiver solutions intended for portable
or hand-held applications such as notebook and palmtop computers. The SP3243E includes one
complementary receiver that remains alert to monitor an external device's Ring Indicate signal while
the device is shutdown. The SP3243E and EB devices feature slew-rate limited outputs for reduced
crosstalk and EMI. The "U" and "H" series are optimized for high speed with data rates up to 1Mbps,
easily meeting the demands of high speed RS-232 applications. The SP3243E series uses an internal
high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This
charge pump and Exar's driver architecture allow the SP3243E series to deliver compliant RS-232
performance from a single power supply ranging from +3.0V to +5.5V. The AUTO ON-LINE
allows the device to automatically "wake-up" during a shutdown state when an RS-232 cable is con-
nected and a connected peripheral is turned on. Otherwise, the device automatically shuts itself down
drawing less than 1µA.
SP3243EB
SP3243EH
SP3243EU
SP3243E
Variations
from a +3.0V to +5.5V power supply
adheres to EIA/TIA-562 down to a +2.7V
power source
wakes up from a 1µA shutdown
RS-232 Outputs Regardless of V
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
Device
3 Driver/5 Receiver Intelligent +3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
Supplies
Power
®
circuitry automatically
RS-232
Drivers
3
3
3
3
CC
Receivers
RS-232
5
5
5
5
1
Components
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
External
RS-232 Transceivers
Now Available in Lead Free Packaging
T
T
T
2
3
1
R
R
R
R
R
OUT
OUT
T
T
T
Circuitry
OUT
On-Line
C2+
2
C2-
3
1
1
2
3
4
5
IN
IN
IN
Auto
IN
IN
IN
IN
V-
IN
Yes
Yes
Yes
Yes
10
11
12
13
14
1
2
4
5
6
7
8
9
3
SP3243E
State
TTL
Yes
Yes
Yes
Yes
SELECTION TABLE
3-
SP3243E
Pins
28
20
18
17
16
# of
27
26
25
24
22 SHUTDOWN
19
15
23
21
28
28
28
28
DESCRIPTION
C1+
STATUS
V+
V
GND
ONLINE
R
R
R
R
R
C1-
R
SP3243E_101_111009
CC
2
1
2
4
3
5
OUT
OUT
OUT
OUT
OUT
OUT
1000
Data
Rate
120
250
460
®
Rating
feature
15kV
15kV
15kV
15kV
ESD

Related parts for SP3243EET-L

SP3243EET-L Summary of contents

Page 1

... Otherwise, the device automatically shuts itself down drawing less than 1µA. Device Power RS-232 Supplies Drivers SP3243E +3.0V to +5.5V SP3243EB +3.0V to +5.5V SP3243EH +3.0V to +5.5V SP3243EU +3.0V to +5.5V Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com RS-232 Transceivers OUT 2 T OUT ...

Page 2

... Output Voltage HIGH V CC DRIVER OUTPUTS Output Voltage Swing +5.0 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com Power Dissipation per package 28-pin SOIC (derate 12.7mW/ 28-pin SSOP (derate 11.2mW/ 28-pin TSSOP (derate 13.2mW/ 32-pin QFN (derate 29.4mW/ +0 ...

Page 3

... Receiver Output Enable Time Receiver Output Disable Time Driver Skew (E, EB) (EH, EU) Receiver Skew Transition-Region Slew Rate (EH, EU) (E, EB) Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com ELECTRICAL CHARACTERISTICS = +3.0V to +5.5V with +3.3V or +5.0V and T = 25°C. CC AMB MIN ...

Page 4

... Transmitter at 250Kbps 2 Transmitters at 15.6Kbps 5 All drivers loaded with 3K // 1000pF 0 2.7 3 3.5 4 Supply V oltage (V DC Figure 5. Supply Current VS. Supply Voltage for the SP3243EU Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com TYPICAL PERFORMANCE CHARACTERISTICS = +25°C. AMB 2.7 1500 2000 Figure 2 ...

Page 5

... All drivers loaded 3K + Load Cap 0 0 500 1000 2000 3000 Load Capacitance (pF) Figure 7. Slew Rate VS. Load Capacitance Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com TYPICAL PERFORMANCE CHARACTERISTICS = +25°C. AMB - Slew + Slew 4000 5000 5 = +3.3V, 1000kbps data rate, all ...

Page 6

... CC SHUTDOWN Apply logic LOW to SHUTDOWN driver and charge pump. This overrides all AUTO ON-LINE® circuitry and ONLINE (Refer to table Connection Table 1. Device Pin Description Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com PIN NUMBER SP3243E ...

Page 7

... TTL/CMOS INPUTS TTL/CMOS OUTPUTS To µ P Supervisor Figure 8. SP3243E Typical Operating Circuit OUT 1 T OUT 2 Figure 9. SP3243E QFN Pinout Configuration Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com 0.1 µ C1 0.1 µ C1- 1 C2+ SP3243E 0.1 µ C2- T OUT T IN ...

Page 8

... Supervisor IC Figure 10. Interface Circuitry Controlled by Micropro- cessor Supervisory Circuit Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com In many portable or hand-held applications, an RS-232 cable can be disconnected or a connected peripheral can be turned off. Under these condi- tions, the internal charge pump and the drivers will be shut down ...

Page 9

... STATUS To µP Supervisor Circuit GND 18 Figure 11. Loopback Test Circuit for RS-232 Driver Data Transmission Rates Figure 12. Loopback Test results at 1Mbps Figure 13. Loopback Test results at 250Kbps Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com Device: SP3243E SHUTDOWN + C3 0.1 µ 0.1 µ ...

Page 10

... C . Since age potential across times V 2 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com Phase 4 — V transfer — The fourth phase of the clock DD connects the negative terminal of C and transfers this positive generated voltage across C 2 voltage is regulated to +5.5V. At this voltage, the internal oscillator is disabled ...

Page 11

... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com Charge pump capacitor value for SP32XX 0.1µ 0.047µ 0.33µ 0.22µ ...

Page 12

... ONLINE pin. Table 3 summarizes the logic of the AUTO ON- LINE operating modes. The truth table logic of ® the SP3243E driver and receiver outputs can be found in Table 2. Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com +2. ...

Page 13

... Figure 15. Charge Pump — Phase – Figure 16. Charge Pump — Phase – –5V Figure 17. Charge Pump — Phase – Figure 18. Charge Pump — Phase 4 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com – – – + – –5V –5V ...

Page 14

... Data Terminal Ready 5. Signal Ground (Common) Figure 20. Circuit for the connectivity of the SP3243E with a DB-9 connector Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com The SP3243E driver outputs are able to maintain voltage under loading 2.5mA per driver, ensuring sufficient output for mouse-driving ap- plications ...

Page 15

... YES LOW NO LOW Table 3. AUTO ON-LINE Logic ® Figure 21. Stage I of AUTO ON-LINE Delay Delay Stage Stage R INACT R INACT 1 2 Figure 22. Stage II of AUTO ON-LINE Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com LOW HIGH / LOW HIGH / LOW ...

Page 16

... DC Power Source Figure 23. ESD Test Circuit for Human Body Model Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com current when the ESD source is applied to the connector pins. The test circuit for IEC1000-4-2 is shown on Figure 24. There are two methods within IEC1000-4-2, the Air Discharge method and the Contact Discharge method ...

Page 17

... DEVICE PIN HUMAN BODY TESTED MODEL Driver Outputs +15kV Receiver Inputs +15kV Table 4. Transceiver ESD Tolerance Levels Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com Contact-Discharge Model SW1 and R V add up to 330Ω for IEC1000-4-2. ...

Page 18

... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com PACKAGE: 28 PIN WSOIC 18 SP3243E_101_111009 ...

Page 19

... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com PACKAGE: 32 PIN QFN 19 SP3243E_101_111009 ...

Page 20

... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com PACKAGE: 28 PIN SSOP 20 SP3243E_101_111009 ...

Page 21

... Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com PACKAGE: 28 PIN TSSOP 21 SP3243E_101_111009 ...

Page 22

... SP3243 /TR Part Number Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com PRODUCT NOMENCLATURE Tape and Reel options “L” suffix indicates Lead Free packaging Package Type A= SSOP Y= TSSOP T= WSOIC R= QFN Temperature Range C= Commercial Range 0ºc to 70ºC E= Extended Range -40ºc to 85ºC ...

Page 23

... Part Number Data Rate (kbps) SP3243ECA-L SP3243ECT-L SP3243ECY-L SP3243EEA-L SP3243EET-L SP3243EEY-L SP3243EBCA-L SP3243EBCT-L SP3243EBCY-L SP3243EBER-L SP3243EBEA-L SP3243EBET-L SP3243EBEY-L SP3243EBER-L SP3243EHCA-L SP3243EHCT-L SP3243EHEA-L SP3243EHET-L SP3243EUCA-L SP3243EUCT-L SP3243EUCY-L SP3243EUER-L SP3243EUEA-L SP3243EUET-L SP3243EUEY-L SP3243EUER-L For Tape and Reel option add "/TR", Example: SP3243ECA-L/TR. ...

Page 24

... EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writting, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...

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