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The SP336E Dual Protocol interface chip offers software control for mixed RS232/RS485 operations, full/half duplex, and enhanced failsafe protection. It supports 3V to 5V operation, ±15kV ESD protection, and 250kbps to 10Mbps data rates. Ideal for Point-of-Sales Equipment, Industrial Controls, Networking, and more. Upgrade from SP331, SP332, SP334 for improved signal integrity, EMI control, and competitive advantages. Discover the SP336E's advanced features and competitive edge over Maxim MAX3162.
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SP336 Key Features • Low cost • Software dual protocol control • Mixed protocol operation • Software tri-state control • Full or half duplex operation • Individual driver and receiver enable controls • Diagnostic loop-back function • True failsafe operation • 1/8th unit load or up to 256 nodes on a bus • Software slew rate control • 28 TSSOP or SOIC packaging
Dual Protocol (SP33x) • SP331 and SP332 – 4Tx/4Rx RS232 or 2Tx/2Rx RS485 • Configure as 4Tx/4Rx RS232 or 2Tx/2Rx RS485 or mix RS232/RS485 • SP331 configurable for RS232 or RS485 or mixed • SP332 has Loopback pin and shutdown pin • SP334 – 3Tx/5Rx RS232 or 2Tx/2Rx RS485 • SP336E • 4Tx/4Rx RS232 or 2Tx/2Rx RS485 • 3V to 5V operation • ±15kV ESD protection • Full or Half Duplex, Advanced Failsafe, 1/8th Load RS485 • 250kbps or 1Mbps RS232. 250kbps or 10Mbps RS485
SP336E Configurable RS232/485 • Configurable into 8 Modes • RS-232 with 4 channels • RS-485 full or half duplex, 2-ch. • Combo RS-232/485 half or full duplex • Diagnostic loop-back • Low-power standby mode • Tri-state, full-shutdown • 3V to 5V single supply • 15kV ESD protection • Improved signal integrity • 250k, or 1 & 10 Mbps data rates • Adjustable slew for EMI control • RS-485 failsafe and 1/8th unit load RS232 4T/4R RS232 2T/2R + RS485 1T/1R F-Dplx Full Shut-down Mode RS485 2T/2R F-Dplx Loop-Back Mode RS232 2T/2R + RS485 1T/1R H-Dplx Shut-down with Rx Active RS485 2T/2R H-Dplx
SP336 Dual Protocol Applications • Point-of-Sales Equipment • Industrial Controls • Protocol Translators • Cable Repeaters / Port Extenders / Hubs • Peripherals • Networking • Security Systems • Flexible serial ports configurable as RS-232, RS-485 or RS-422
Upgrade to the SP336E • Upgrade from existing SP331, SP332, SP334, • Compatible pinout and package • Now with +/-15kV ESD protection • Now capable of 3.3V operation • Advanced failsafe receiver protection • Capable of either full-duplex or half-duplex • Adjustable Slew/Speed control • Upgrade from competitor devices • Superior alternative to LTC1334, MAX3160-62, AD7306 • Replaces older Exar devices SP522, SP524 • Single power supply solution • Eliminates power sequencing requirements
SP336 Competitive Edge • Competition • Maxim MAX3162 • SP336 Advantage • More channels • More configurations • Lower power • Diagnostic loop back • Enhanced ESD • Thinner package • NET1/Net2 and TBR-1 TBR-2 Certified
SP336 MAX3162 Package Height Comparison (Not to scale)
Value Proposition • High ESD Robustness – 15kV IEC (air-gap) • 1/8 unit load permits 256 transceivers on bus • Enhanced Failsafe - Prevents false signals
Next Steps • Visit Commercial and Industrial customers next month • Communicate SP336E Value Propositions • Get Design Win!