SP502

® SP502 Multi–Mode Serial Transceiver ■ Single-Chip Serial Transceiver Supports Industry-Standard ■ Software-Selectable Protocols: — RS-232 (V.28) — RS-422A (V.11, X.27) — RS-449 — RS-485 — V.35 — EIA-530 ■ Programmable Selection of Interface ■ +5V-Only Operation ■ Six (6) Drivers and Seven (7) Receivers ■ Surface Mount Packaging DESCRIPTION… The SP502 is a highly integrated serial transceiver that allows software control of its interface modes. It offers hardware interface modes for RS-232 (V.28), RS-422A (V.11), RS-449, RS-485, V.35, and EIA-530. The SP502 is fabricated using low–power BiCMOS process technology, and incorporates a Sipex patented (5,306,954) charge pump allowing +5V only operation. Drivers Receivers SP502 Charge Pump Driver Decode Receiver Decode Rev. 7/21/03 SP502 Multi-Mode Serial Transceiver © Copyright 2003 Sipex Corporation 1 SPECIFICATIONS MIN. LOGIC INPUTS VIL VIH LOGIC OUTPUTS VOL VOH RS-485 DRIVER TTL Input Levels VIL VIH Outputs HIGH Level Output LOW level Output Differential Output Balance Open Circuit Voltage Output Current Short Circuit Current Transition Time Maximum Transmission Rate RS-485 RECEIVER TTL Output Levels VOL VOH Input HIGH Threshold LOW Threshold Common Mode Range HIGH Input Current LOW Input Current Receiver Sensitivity Input Impedance V.35 DRIVER TTL Input Levels VIL VIH Outputs Differential Output Output Impedance Transition Time Maximum Transmission Rate V.35 RECEIVER TTL Output Levels VOL VOH Receiver Sensitivity I...