■ 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 Microelectronics 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-run 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