MC33290D(2002) Ver la hoja de datos (PDF) - Motorola => Freescale
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MC33290D Datasheet PDF : 12 Pages
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33290/D
Rev 4, 11/2002
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.
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 -40°C ≤ TA ≤ 125°C and 8.0 V ≤ VBB ≤ 18 V supply. The
economical SO-8 surface-mount plastic package makes the 33290 very cost
effective.
Features
• Designed to Operate Over Wide Supply Voltage of 8.0 to 18 V
• Ambient Operating Temperature of -40 to 125°C
• Interfaces Directly to Standard CMOS Microprocessors
• ISO K Line Pin Protected Against Shorts to Ground
• Thermal Shutdown with Hysteresis
• Maximum Transmission Speeds in Excess of 50 k Baud
• 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 VBat Current Drain with VDD at 5.0 V
• Low Current Drain During Operation with VDD at 5.0 V
33290
ISO K LINE SERIAL LINK
INTERFACE
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO-8)
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33290D
-40 to 125°C
SO-8
33290 Simplified Application Diagram
On-Board Diagnostic Link
+VBat
45 V(2)
D(1)
MCU
+VDD
33290
500 Ω(2)
VCC
5.0 V
VDD
7
VBB
1
10 nF(3)
Dx
SCIRxD
SCITxD
1.0 nF
5.0 nF(3)
ISO
K Line
CEN ISO
8
4
6 Rx
Tx
GND
27 V(3)
5
3
Service Scan Tool
or
End of Production Line
Programming
or
System Checking
510 Ω
TxD
RxD
Components necessary for Reverse Battery (1), Overvoltage Transient (2), and 8.0 kV
ESD Protection (3) in a metal module case. This device contains 85 active transistors.
© Motorola, Inc. 2002
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