clear gifSN75C3243, Status:ACTIVE
3-V To 5.5-V Multichannel RS-232 Line Driver/Receiver
 
clear gif
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 Datasheet
Download Datasheet
SN65C3243, SN75C3243 (Rev. G) (sn75c3243.pdf, 492 KB)
23 Nov 2004 Download

SN65C3243 SN75C3243
Data Rate(kbps)1000  1000  
Drivers Per Package3  3  
Receivers Per Package5  5  
ESD HBM(kV)15  15  
Supply Voltage(s)(V)3.3 or 5  3.3 or 5  
ICC(Max)(mA)1  1  
Operating Temp Range(Celsius)-40 to 85  0 to 70  
Pin/Package28SOIC,28SSOP,28TSSOP  28SOIC,28SSOP,28TSSOP  
Approx. Price (US$) 1.62 | 1ku   0.94 | 1ku  
FootprintMAX3243  MAX3243  
RatingCatalog  Catalog  
 SamplesSamples
 InventoryInventory

Product Information
Back to TopFeatures
  • Operate With 3-V to 5.5-V VCC Supply
  • Always-Active Noninverting Receiver Output (ROUT2B)
  • Low Standby Current ...1 µA Typical
  • External Capacitors ...4 × 0.1 µF
  • Accept 5-V Logic Input With 3.3-V Supply
  • Inter-Operable With SN65C3238, SN75C3238
  • Support Operation From 250 kbit/s to 1 Mbit/s
  • RS-232 Bus-Pin ESD Protection Exceeds ±15-kV Using Human-Body Model (HBM)
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • Applications
    • Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment

Back to TopDescription

The SN65C3243 and SN75C3243 consist of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD protection pin-to-pin (serial-port connection pins, including GND). These devices provide the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. In addition, these devices include an always-active noninverting output (ROUT2B), which allows applications using the ring indicator to transmit data while the devices are powered down. The devices operate at data signaling rates up to 1 Mbit/s, and an increased slew-rate range of 24 V/µs to 150 V/µs.

Flexible control options for power management are available when the serial port is inactive. The auto-powerdown feature functions when FORCEON is low and FORCEOFF\ is high. During this mode of operation, if the devices do not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF\ is set low, both drivers and receivers (except ROUT2B) are shut off, and the supply current is reduced to 1 µA. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur.

Auto-powerdown can be disabled when FORCEON and FORCEOFF\ are high, and should be done when driving a serial mouse. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to any receiver input. The INVALID\ output is used to notify the user if an RS-232 signal is present at any receiver input. INVALID\ is high (valid data) if any receiver input voltage is greater than 2.7 V or less than –2.7 V or has been between –0.3 V and 0.3 V for less than 30 µs. INVALID\ is low (invalid data) if all receiver input voltages are between –0.3 V and 0.3 V for more than 30 µs. Refer to Figure 5 for receiver input levels.

Analog eLab(TM) Design Center
RS-232 Cast

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Pricing/Packaging/CAD Design Tools/Samples
Back to TopPricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Budget Price
($US) | QTY
Industry Standard
(TI Pkg)
| Pins
Top Side MarkingStandard Pack Quantity | Package CarrierSymbolsFootprintsSamples
SN75C3243DBRACTIVE0 to 700.94 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243DBRE4ACTIVE0 to 700.94 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243DBRG4ACTIVE0 to 700.94 | 1kuSSOP (DB) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243DWACTIVE0 to 700.94 | 1kuSOIC (DW) | 28 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SN75C3243DWE4ACTIVE0 to 700.94 | 1kuSOIC (DW) | 28 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SN75C3243DWG4ACTIVE0 to 700.94 | 1kuSOIC (DW) | 28 View 20 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SN75C3243DWRACTIVE0 to 700.94 | 1kuSOIC (DW) | 28 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243DWRE4ACTIVE0 to 700.94 | 1kuSOIC (DW) | 28 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243DWRG4ACTIVE0 to 700.94 | 1kuSOIC (DW) | 28 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243PWACTIVE0 to 700.94 | 1kuTSSOP (PW) | 28 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SN75C3243PWE4ACTIVE0 to 700.94 | 1kuTSSOP (PW) | 28 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SN75C3243PWG4ACTIVE0 to 700.94 | 1kuTSSOP (PW) | 28 View 50 | TUBE Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
SN75C3243PWRACTIVE0 to 700.94 | 1kuTSSOP (PW) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243PWRE4ACTIVE0 to 700.94 | 1kuTSSOP (PW) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples
SN75C3243PWRG4ACTIVE0 to 700.94 | 1kuTSSOP (PW) | 28 View 2000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintRequest Free Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.


Inventory
Back to TopTI Inventory StatusReported Distributor Inventory
SN75C3243DBRAs of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 5930 | 27 Aug 8 Weeks AmericasArrow >1k Buy Now
 >10k | 14 Oct DigiKey >1k Buy Now
  AsiaWPI >1k Buy Now
SN75C3243DBRE4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 5930 | 27 Aug 8 Weeks None Reported
View Distributors
  
 >10k | 14 Oct    
SN75C3243DBRG4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 5930 | 27 Aug 8 Weeks None Reported
View Distributors
  
 >10k | 14 Oct    
SN75C3243DWAs of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 7 Oct 9 Weeks AmericasRochester Electronics 30 Buy Now
  EuropeEBV Elektronik 100 Buy Now
  Farnell 335 Buy Now
SN75C3243DWE4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 7 Oct 9 Weeks AmericasRochester Electronics >1k Buy Now
SN75C3243DWG4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 7 Oct 9 Weeks None Reported
View Distributors
  
SN75C3243DWRAs of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 7 Oct 9 Weeks AmericasDigiKey 358 Buy Now
  Rochester Electronics 1k Buy Now
  AsiaWPI 950 Buy Now
  EuropeArrow Southern Europe >1k Buy Now
SN75C3243DWRE4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 7 Oct 9 Weeks None Reported
View Distributors
  
SN75C3243DWRG4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* >10k | 7 Oct 9 Weeks None Reported
View Distributors
  
SN75C3243PWAs of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 600* 5371 | 22 Aug 6 Weeks AmericasArrow 518 Buy Now
 350 | 22 Sep Rochester Electronics 1k Buy Now
  AsiaWPI 109 Buy Now
  EuropeArrow Southern Europe 200 Buy Now
SN75C3243PWE4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 600* 5371 | 22 Aug 6 Weeks None Reported
View Distributors
  
 350 | 22 Sep    
SN75C3243PWG4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 600* 5371 | 22 Aug 6 Weeks AmericasAvnet 50 Buy Now
 350 | 22 Sep    
SN75C3243PWRAs of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase
 0* 5977 | 21 Aug 6 Weeks AmericasDigiKey 402 Buy Now
 >10k | 16 Oct Mouser Electronics >1k Buy Now
  AsiaWPI >1k Buy Now
SN75C3243PWRE4As of 9:16 AM GMT, 25 Jul 2008As of 9:16 AM GMT, 25 Jul 2008
 In StockIn Progress QTY | DateLead TimeRegionCompanyIn StockPurchase