1. SP3238A and SP3247E 3V to 5V RS-232 Transceivers with Auto On-Line ® Plus

2. Company Confidential 2 SP3238A at 250Kbps data rate SP3247E at 1Mbps data rate Power-saving Auto On-Line ® Plus Automatically enters 1μA mode when idle STATUS output detects cable plug/unplug Automatic wakeup on signal activity Complete terminal or PC serial port 5 drivers, 3 receivers, with extra /Rx ±15kV ESD (IEC 1000-4-2) Small, Pb-free packages 28 pin TSSOP, SSOP Features & Benefits

3. Company Confidential 3 Robust ESD Protection Enhanced durability for use in demanding applications Built-in protection against accidental static discharge ±15,000 Volt Human Body Model ±15,000 Volt Air-Gap (IEC61000-4-2) ±8,000 Volt Contact Discharge (IEC61000-4-2) Eliminate costly external TVS components ESD Pulse Examples of Typical Static Voltage Potentials Means of Generation10-25% RH65-90% RH Walking across carpet35,000V1,500V Walking across vinyl tile12,000V250V Worker at bench6,000V100V Chair with urethane foam18,000V1,500V

4. Company Confidential 4 Auto On-Line ® Plus saves power Ordinary RS232 consumes a lot of power Drivers are always on and driving into a 5kΩ load impedance Charge pumps running continually Shut down drivers/pumps when idle to save power; wake-up to transmit data Automatic Shutdown/Wakeup –Auto On-Line ® Plus No user intervention or software required Transceiver goes to 1nA sleep mode when idle Automatically comes back on-line if it sees a data transition on receiver input or driver input

5. Company Confidential 5 Target Applications Power-saving RS232 transceiver: SP3238A in computer, telecom, consumer and embedded applications SP3247E for telecom, instrumentation, POS and embedded applications Serial port DTE transceiver for laptop or portable PC Synch cables/cradles for handhelds Use in conjunction with low-voltage UARTs or microcontrollers Cross with MAX3238/48, ICL3238

6. Company Confidential 6 Small Standard Package Footprint Small, Pb-free packages 28 pin TSSOP, SSOP

7. Company Confidential 7 New Auto On-Line® Plus RS232 Name Isupply (mA) Active I Q (uA) Auto On- line Plus Vin MIN. (V) Max Data Rate (bps) DriversReceivers SP32240.713-5.5250k22 SP32250.713-5.51M22 SP32260.713-5.5250k11 SP32270.713-5.51M11 SP3238A113-5.5250k53 SP3247113-5.51M53 SP3244113-5.5250k35 SP3245113-5.51M35

8. Company Confidential 8 SP3238A Competitive Update VendorPart NumberCross-Type Direct Equivalents MaximMAX3238EDrop-In TIMAX3238EDrop-In IntersilICL3238EDrop-In Similar Devices (without Auto On-Line ® Plus) ExarSP3238EPin-compatible MaximMAX3238Pin-compatible IntersilICL3238Pin-compatible

9. Company Confidential 9 SP3247E Competitive Update VendorPart NumberCross-Type Direct Equivalents MaximMAX3237EDrop-In Similar Devices (without Auto On-Line ® Plus) IntersilICL3237Pin-compatible ExarSP3238EPin-compatible

10. Company Confidential 10 Selection Guide Part NumberTemp.PackageRoHS SP3238AECA-L0 To +70 o C28 pin SSOPY SP3238AECY-L0 To +70 o C28 pin TSSOPY SP3238AEEA-L-45 to 85 o C28 pin SSOPY SP3238AEEY-L-45 to 85 o C28 pin TSSOPY SP3247ECA-L0 To +70 o C28 pin SSOPY SP3247ECY-L0 To +70 o C28 pin TSSOPY SP3247EEA-L-45 to 85 o C28 pin SSOPY SP3247EEY-L-45 to 85 o C28 pin TSSOPY

11. Company Confidential 11 Value Proposition High ESD Robustness – 15kV IEC (air-gap) Auto On-Line ® Plus – save power by shutting down the drivers/pumps when not needed to transmit data Equivalent to other automatic power-saving features Maxim “Shutdown Plus” Texas Instruments “Powerdown Plus” Intersil “Enhanced Automatic Powerdown” BATT 100%

12. Company Confidential 12 Next Steps Visit Commercial and Industrial customers next month Communicate SP3238A-3247E Value Propositions Get Design Win!