SP3245EER1-L

SP3245EER1-L Datasheet


SP3244E-SP3245E

Part Datasheet
SP3245EER1-L SP3245EER1-L SP3245EER1-L (pdf)
Related Parts Information
SP3245EER1-L/MTR SP3245EER1-L/MTR SP3245EER1-L/MTR
SP3245EER-L/MTR SP3245EER-L/MTR SP3245EER-L/MTR
SP3245EER-L SP3245EER-L SP3245EER-L
PDF Datasheet Preview
SP3244E-SP3245E
3.3V or 5V RS-232 Transceivers with Auto Plus

FEATURES
• Contains 3-Drivers and 5-Receivers;

Single-chip DTE PC or terminal serial port transceiver
• Auto Plus
• SP3244E slew-controlled to 250kbps under load
• SP3245E 1Mbps data rate for high-speed RS-232
• Meets true EIA/TIA-232-F and ITU V.28 standards
from a +3.0V to +5.5V power supply
• Adheres to EIA/TIA-562 for interoperability
with EIA/TIA-232 down to a +2.7V supply voltage
• Regulated charge pump yields stable RS-232
outputs regardless of VCC variations
• ESD Specifications:
±15KV Human Body Model

C2+ 1 C2- 2

V- 3 R1IN 4 R2IN 5 R3IN 6

R4IN 7
28 C1+ 27 V+ 26 VCC 25 GND 24 C1SP3244E 23 ONLINE SP3245E 22 SHUTDOWN

R5IN 8
21 STATUS
• Portable RS-232
• Laptops and handheld PCs and PDA
• Cellular telephones, datacables, chargingcradles
• Diagnostic/upload ports on embedded applications
• Use in conjunction with low-voltage UART or
microcontroller
• SP3244 is cross-compatible with MAX3244, ICL3244
• SP3245 is cross-compatible with MAX3245, ICL3245

T1OUT 9 T2OUT 10 T3OUT 11

T3IN 12 T2IN 13 T1IN 14
20 R2OUT 19 R1OUT 18 R2OUT 17 R3OUT 16 R4OUT 15 R5OUT

DESCRIPTION The SP3244E/3245E is a 3-driver/5-receiver device ideal for mobile phone, consumer and PDA applications. These devices use an internal high-efficiency, charge-pump power supply that requires only 0.1uF capacitors for 3.3V single-supply operation. This charge pump and Exar’s driver architecture allow the SP3244E/3245E to deliver compliant RS-232 performance from a power supply ranging from +3.0V to +5.5V. At voltages between +2.7V and +3.0V the driver outputs are compliant with RS-562 and can interface to RS-232 in portable applications. The Auto Plus feature allows the device to automatically enter a low power shutdown mode if all receiver and driver inputs have been idle for 30 seconds. The device will “wake-up” from this automatic shutdown state upon detecting activity. This power saving feature functions without system intervention or modifications to software or drivers.

SP3244E supports serial data rates of 250kbps minimum under full load and while maintaining slew rates of less than 30V/us. SP3245E is capable of high speed communication of up to 1Mbps.

Exar Corporation 48720 Kato Road, Fremont CA, 94538
• 510-668-7017


SP3244E_SP3245E_100_121509

Pin Assignments

NAME

C2+ C2VR1IN R2IN R3IN R4IN R5IN T1OUT T2OUT T3OUT T3IN T2IN T1IN R5OUT R4OUT R3OUT R2OUT R1OUT R2OUT STATUS

SHUTDOWN

ONLINE

C1GND VCC V+ C1+ NC

FUNCTION

Positive terminal of the inverting charge pump capacitor. Negative terminal of the inverting charge pump capacitor. Regulated -5.5V output generated by the charge pump. RS-232 receiver input. RS-232 receiver input. RS-232 receiver input. RS-232 receiver input. RS-232 receiver input. RS-232 driver output. RS-232 driver output. RS-232 driver output. TTL/CMOS driver input. TTL/CMOS driver input. TTL/CMOS driver input. TTL/CMOS receiver output. TTL/CMOS receiver output. TTL/CMOS receiver output. TTL/CMOS receiver output. TTL/CMOS receiver output. Non-inverting receiver 2 output active in shutdown. Status output. Forced SHUTDOWN input. Drive low to shut down drivers, receivers and charge pump. Will override Auto Plus. Do not leave this pin open. Auto Plus input. Active low enabled automatic power saving feature. Equivalent to competitor's FORCEON pin. Do not leave this pin open. Negative terminal of the voltage doubler charge pump capacitor. Ground connection. Device power supply pin 3.0V to 5.5V . Regulated +5.5V output generated by the charge pump. Positive terminal of the voltage doubler charge pump capacitor. No connection.

PIN NUMBER

T SSOP
9, 16, 25, 32

Exar Corporation 48720 Kato Road, Fremont CA, 94538
• 510-668-7017


SP3244E_SP3245E_100_121509

Absolute Maximum Ratings

Supply Voltage Vcc .......................-0.3V to + 6.0V V+ Note to + 7.0V V- Note to - 7.0V |V+| + |V-| Input voltage at TTL input pin.. -0.3V toVCC +0.3V Driver output from Ground ...................... +/-13.2V RxOUT, /STATUS.....................-0.3V to VCC + 0.3V Short Circuit Duration, TxOUT to GND, Continuous One output at a time maximum Storage Temperature.....................-65°C to +150°C Operating Temperature SP32__EC_.............0°C to +70°C Operating Temperature SP32__EE_........-40°C to +85°C Lead Temperature soldering, 10s ............. +300°C

SOIC-28, = 58.6ºC/W SSOP-28, = 67.1ºC/W TSSOP-28, = 83.6ºC/W QFN-32, = 22.4ºC/W

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.

NOTE 1 V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
Ordering INFORMATION

Package Type 28 pin SSOP 28 pin TSSOP 28 pin SSOP 28 pin TSSOP 32 pin QFN 28 pin SSOP 28 pin TSSOP 28 pin SSOP 28 pin TSSOP 32 pin QFN

DATE 10-09-06 12-15-09

Legacy Sipex Datasheet

Notice

EXAR Corporation reserves the right to make changes to any products contained in this publication in order to improve design, performance or reliability. EXAR Corporation assumes no representation that the circuits are free of patent infringement. Charts and schedules contained herein are only for illustration purposes and may vary depending upon a user's specific application. While the information in this publication has been carefully checked no responsibility, however, is assumed for inaccuracies.

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 b the user assumes all such risks c potential liability of EXAR Corporation is adequately protected under the circumstances.

Copyright 2009 EXAR Corporation

Datasheet December 2009

Send your Interface technical inquiry with technical details to:

Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.

Exar Corporation 48720 Kato Road, Fremont CA, 94538
• 510-668-7017


SP3244E_SP3245E_100_121509
More datasheets: DCDM-21S6E5-18.0S | DM74AS640N | DM74AS640WMX | B39162B7840C710S9 | B39162B7840C710A3 | B39162B7840C710 | B39162B7840C710S3 | ACT6357NH-T | EA6357NH | SP3245EER1-L/MTR


Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived SP3245EER1-L Datasheet file may be downloaded here without warranties.

Datasheet ID: SP3245EER1-L 512909