NXP Semiconductors
Data Sheet: Advance Information
Document Number: MC33903_4_5
Rev. 14.0, 2/2018
SBC Gen2 with CAN high speed and
LIN interface
The 33903/4/5 is the second generation family of the System Basis Chip (SBC).
It combines several features and enhances present module designs. The device
works as an advanced power management unit for the MCU with additional
integrated circuits such as sensors and CAN transceivers. It has a built-in
enhanced high-speed CAN interface (ISO11898-2 and -5) with local and bus
failure diagnostics, protection, and fail-safe operation modes. The SBC may
include zero, one or two LIN 2.1 interfaces with LIN output pin switches. It
includes up to four wake-up input pins that can also be configured as output
drivers for flexibility. This device is powered by SMARTMOS technology.
This device implements multiple Low-power (LP) modes, with very low-current
consumption. In addition, the device is part of a family concept where pin
compatibility adds versatility to module design.
The 33903/4/5 also implements an innovative and advanced fail-safe state
machine and concept solution.
33903/
33903/4/5
SYSTEM BASIS CHIP
EK Suffix (Pb-free)
98ASA10556D
32-PIN SOIC
EK Suffix (Pb-free)
98ASA10506D
54-PIN SOIC
Features
• Voltage regulator for MCU, 5.0 or 3.3 V, part number selectable, with
possibility of usage external PNP to extend current capability and share power
dissipation
• Voltage, current, and temperature protection
• Extremely low quiescent current in LP modes
• Fully-protected embedded 5.0 V regulator for the CAN driver
• Multiple undervoltage detections to address various MCU specifications and
system operation modes (i.e. cranking)
• Auxiliary 5.0 or 3.3 V SPI configurable regulator, for additional ICs, with
overcurrent detection and undervoltage protection
• MUX output pin for device internal analog signal monitoring and power supply
monitoring
• Advanced SPI, MCU, ECU power supply, and critical pins diagnostics and
monitoring.
• Multiple wake-up sources in LP modes: CAN or LIN bus, I/O transition,
automatic timer, SPI message, and V
DD
overcurrent detection.
• ISO11898-5 high-speed CAN interface compatibility for baud rates of 40 kb/s
to 1.0 Mb/s
• Scalable product family of devices ranging from 0 to 2 LINs which are
compatible to J2602-2 and LIN 2.1
Applications
•
•
•
•
•
•
•
Air
craft and marine systems
Automotive and robotic systems
Farm equipment
Industrial actuator controls
Lamp and inductive load controls
DC motor control applications requiring diagnostics
Applications where high-side switch control is
require
d
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© NXP B.V. 2018.
Table of Contents
1. Simplified application diagrams ..................................................................................................................................................... 3
2. Orderable part ................................................................................................................................................................................ 7
3. Internal block diagrams .................................................................................................................................................................. 9
4. Pin Connections ........................................................................................................................................................................... 11
4.1. Pinout diagram ....................................................................................................................................................................... 11
5. Electrical characteristics .............................................................................................................................................................. 16
5.1. Maximum ratings .................................................................................................................................................................... 16
5.2. Static electrical characteristics ............................................................................................................................................... 18
5.3. Dynamic electrical characteristics .......................................................................................................................................... 26
5.4. Timing diagrams .................................................................................................................................................................... 29
6. Functional description .................................................................................................................................................................. 32
6.1. Introduction ............................................................................................................................................................................ 32
6.2. Functional pin description ...................................................................................................................................................... 32
7. Functional device operation ......................................................................................................................................................... 36
7.1. Mode and state description .................................................................................................................................................... 36
7.2. LP modes ............................................................................................................................................................................... 37
7.3. State diagram ......................................................................................................................................................................... 39
7.4. Mode change ......................................................................................................................................................................... 40
7.5. Watchdog operation ............................................................................................................................................................... 40
7.6. Functional block operation versus mode ............................................................................................................................... 43
7.7. Illustration of device mode transitions .................................................................................................................................... 44
7.8. Cyclic sense operation during LP modes ............................................................................................................................... 45
7.9. Cyclic INT operation during LP VDD on mode ....................................................................................................................... 47
7.10. Behavior at power up and power down ................................................................................................................................ 48
7.11. Fail-safe operation ............................................................................................................................................................... 51
8. CAN interface .............................................................................................................................................................................. 55
8.1. CAN interface description ...................................................................................................................................................... 55
8.2. CAN bus fault diagnostic ........................................................................................................................................................ 58
9. LIN block ...................................................................................................................................................................................... 62
9.1. LIN interface description ........................................................................................................................................................ 62
9.2. LIN operational modes ........................................................................................................................................................... 63
10. Serial peripheral interface .......................................................................................................................................................... 64
10.1. High level overview .............................................................................................................................................................. 64
10.2. Detail operation .................................................................................................................................................................... 64
10.3. Detail of control bits and register mapping ........................................................................................................................... 68
10.4. Flags and device status ....................................................................................................................................................... 84
11. Typical applications ................................................................................................................................................................... 92
12. Packaging ................................................................................................................................................................................ 100
12.1. SOIC 32 package dimensions ........................................................................................................................................... 100
12.2. SOIC 54 package dimensions ........................................................................................................................................... 103
13. Revision history ....................................................................................................................................................................... 106
33903/4/5
2
NXP Semiconductors
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