33660 Datasheet | Freescale Semiconductor

Freescale Semiconductor Advance Information Document Number: MC33660 Rev 5.0, 10/2013 ISO K Line Serial Link Interface The 33660 is a serial link bus interface device designed to provide bi-directional half-duplex munication interfacing in automotive diagnostic applications. It is designed to interface between the vehicle’s on-board microcontroller, and systems off-board the vehicle via the special ISO K line. The 33660 is designed to meet the Diagnostic Systems ISO9141 specification. The device’s K line bus driver’s output is fully protected against bus shorts and overtemperature conditions. The 33660 derives its robustness to temperature and voltage extremes by being built on a SMARTMOS process, incorporating CMOS logic, bipolar/MOS analog circuitry, and DMOS power FETs. Although the 33660 was principally designed for automotive applications, it is suited for other serial munication applications. It is parametrically specified over an ambient temperature range of -40 ºC ≤ TA ≤ 125 ºC and 8.0 V ≤ VBB ≤ 18 V supply. The economical SO-8 surface-mount plastic package makes the 33660 very cost effective. Features - - - - - - - - - - Operates over wide supply voltage of 8.0 to 18 V Operating temperature of -40 to 125 °C Interfaces directly to standard CMOS microprocessors ISO K line pin protected against shorts to battery Thermal shutdown with hysteresis ISO K line pin capable of high currents ISO K line can be driven with up to 10 n F of parasitic capacitance 8.0 k V ESD protection attainable with few additional ponents Standby mode: no VBAT current drain with VDD at 5.0 V Low current drain during operation with VDD at 5.0 V ISO9141 PHYSICAL INTERFACE EF SUFFIX (PB-FREE) 98ASB42564B 8-PIN SOICN ORDERING INFORMATION Device (For tape and reel orders, add an R2 suffix) MC33660EF MC33660BEF -40 to 125 °C 8-SOICN Temperature Range (TA) Package +VBAT VDD 33660 VDD MCU Dx SCIRx D SCITx D CEN RX TX ISO GND VDD VBB ISO K-LINE TXD RXD Figure 1. 33660...