MC33290 Datasheet, PDF (1/12 Pages) Freescale Semiconductor, Inc – ISO K Line Serial Link Interface

Freescale Semiconductor
Technical Data
Document Number: MC33290
Rev 8.0, 8/2008
ISO K Line Serial Link Interface
The 33290 is a serial link bus interface device designed to provide
bi-directional half-duplex communication 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 33290 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.
33290
ISO9141 PHYSICAL INTERFACE
The 33290 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 33290 was principally designed for automotive
applications, it is suited for other serial communication applications.
It is parametrically specified over an ambient temperature range of
-40ºC ≤ T_A ≤ 125ºC and 8.0 V ≤ V_BB ≤ 18 V supply. The economical
SO-8 surface-mount plastic package makes the 33290 very cost
effective.
D SUFFIX
EF SUFFIX (PB-FREE)
98ASB42564B
8-PIN SOICN
Features
• Operates Over Wide Supply Voltage of 8.0 to 18V
• Operating Temperature of -40 to 125°C
• Interfaces Directly to Standard CMOS Microprocessors
• ISO K Line Pin Protected Against Shorts to Ground
ORDERING INFORMATION
Device
MC33290D/R2
MCZ33290EF/R2
Temperature
Range (T_A)
-40 to 125°C
Package
8-SOICN
• Thermal Shutdown with Hysteresis
• ISO K Line Pin Capable of High Currents
• ISO K Line Can Be Driven with up to 10 nF of Parasitic
Capacitance
• 8.0 kV ESD Protection Attainable with Few Additional Components
• Standby Mode: No V_Bat Current Drain with V_DD at 5.0 V
• Low Current Drain During Operation with V_DD at 5.0 V
• Pb-Free Packaging Designated by Suffix Code EF
+VBAT
VDD
33290
VDD
VDD VBB
MCU
Dx
CEN ISO
ISO K-Line
SCIRx D
SCITx D
RX
TX
GND
TxD
RxD
Figure 1. 33290 Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as
may be required, to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2006-2008. All rights reserved.