SP333

® SP333 +5V Only RS-232/AppleTalk™ Programmable Transceiver s +5V Only, Single Supply Operation s Low Power Shutdown s 28-Pin SOIC Packaging s 3 Drivers, 5 Receivers – RS-232 s Complete AppleTalk™ Interface s High Data Rates 10Mbps Differential Transceivers 460kbps Single-Ended Transceivers DESCRIPTION… The SP333 is a monolithic device that supports both Macintosh™ and PC serial interfaces. RS-232 mode offers three (3) RS-232 drivers and five (5) RS-232 receivers. Mac mode includes a differential driver and a single-ended inverting driver. Receivers in Mac mode include one differential receiver, one non-inverting single-ended receiver and one inverting single-ended receiver. An on-chip charge pump allows +5V-only operation, and a low power Shutdown mode makes the SP333 ideal for battery powered applications. The interface mode can be changed at any time by a mode select pin. PC Mode 9 0.1µF 0.1µF 12 +5V 0V 25 5 V CC 0.1µF Mac Mode 9 0.1µF 0.1µF 12 +5V +5V 5 V 25 CC 0.1µF 10 RS-232/MacMode V+ 14 11 C2+ VShutdown 26 13 C2- SP333 0.1µF 10 RS-232/MacMode V+ 14 11 C2+ VShutdown 26 13 C2- SP333 0.1µF 27 TI1 T1 TX1 6 27 TI1 TX2 7 2 TXEN T1 TX1 6 TX2 7 28 TI2 T2 1 TI3 19 RX1 20 RX2 21 RX3 22 RX4 23 RX5 3 RXEN T3 R1 TX3 4 RI1 15 RI2 16 RI3 17 RI4 18 RI5 24 GND 8 1 TI3 19 RX1 T3 TX3 4 RI2 16 R1 RI1 15 R2 R3 21 RX3 R3 RI3 17 R4 R5 23 RX5 3 RXEN R5 RI5 24 GND 8 TGoddard/SP333/9617R0 SP333 RS-232/AppleTalk Programmable Transceiver © Copyright 2000 Si...