■ DESCRIPTION

The MB90945 series with one FULL-CAN* interface and FLASH ROM is especially designed for automotive HVAC applications. Its main feature is the on board CAN* Interface, which conform to V2.0 Part A and Part B, while supporting a very flexible message buffer scheme and so offering more functions than a normal FULL-CAN* approach. With the new 0.35 µm CMOS technology, Fujitsu now offers on-chip FLASH-ROM program memory up to 384 K bytes. An internal voltage booster removes the necessity for a second programming voltage.

■ FEATURES

• 16-bit core CPU; 4 MHz external clock (24 MHz internal, 42 ns instr. cycle time)

• New 0.35 µm CMOS Process Technology

• Internal voltage regulator supports 3 V MCU core, offering low EMI and low power consumption figures

• One FULL-CAN interface; conforming to Version 2.0 Part A and Part B, flexible message buffering (mailbox and FIFO buffering can be mixed)

• Powerful interrupt functions (8 progr. priority levels; 8 external interrupts)

• EI2OS - Automatic transfer function independant of CPU; 16 channels of intelligent I/O Services

• 18-bit Time-base counter

• Watchdog Timer

• 1 full duplex UART; support 10.4 KBaud (USA standard)

• up to 2 full duplex UARTs (LIN/SCI/SPI)

• 1 Serial I/O (SPI)

• 1 I2C interface

• A/D Converter : 15 channels analog inputs (Resolution 10-bit or 8-bit)

• 16-bit reload timer × 1channel

• ICU (Input capture) 16-bit × 6 channels

• OCU (Output compare) 16-bit × 4 channels

• 16-bit free running timer × 2 channels (FRT0 : ICU 0/1, OCU 0/1/2/3, FRT1 : ICU 2/3/4/5)

• 8/16-bit Programmable Pulse Generator 6 channels × 8/16-bit

• Optimized instruction set for controller applications (bit, byte, word and long-word data types; 23 different addressing modes; barrel shift; variety of pointers)

• 4-byte instruction execution queue

• signed multiply (16-bit × 16-bit) and divide (32-bit/16-bit) instructions available

• Program Patch Function (3 address match registers)

• Fast Interrupt processing

• Low Power Consumption mode

Sleep mode

Timebase timer mode

Stop mode

CPU intermittent mode

• Automotive input levels

• Package : 100-pin plastic QFP