FUJITSU MICROELECTRONICS
DATA SHEET
DS07-13741-3E
16-bit Proprietary Microcontroller
CMOS
F
2
MC-16LX MB90945 Series
MB90F946A/947A/F947A/F949A/V390HB
■
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.
An on board voltage regulator provides 3 V to the internal MCU core. This creates a major advantage in terms
of EMI and power consumption.
The internal PLL clock frequency multiplier provides an internal 42 ns instruction cycle time from an external
4 MHz clock.
The unit features a 4-channel Output Compare Unit and a 6-channel Input Capture Unit with two separate 16-bit
free-run timers. Up to 3 UARTs, one Serial I/O and one I
2
C constitute additional functionality for communication
purposes.
Note: F
2
MC is the abbreviation of FUJITSU Flexible Microcontroller.
For the information for microcontroller supports, see the following web site.
http://edevice.fujitsu.com/micom/en-support/
Copyright©2005-2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved
2008.11
FUJITSU [ FUJITSU COMPONENT LIMITED. ]
