FUJITSU SEMICONDUCTOR
DATA SHEET
Version 1.3
16-bit Proprietary Microcontroller
CMOS
F2MC-16LX MB90370 Series
MB90372/F372/V370
DESCRIPTION
The MB90370 series is a line of general-purpose, 16-bit microcontrollers designed for those applications which
require high-speed real-time processing. The instruction set is designed to be optimized for controller applications
which inheriting the AT architecture of F2MC-16LX series and allow a wide range of control tasks to be processed
efficiently at high speed.
A built-in LPC interface, serial IRQ and PS/2 interface simplifies communication with host CPU and PS/2 devices
incomputer system. Moreover, SMbuscompliant I2 C, comparatorforbatterycontrol andA/D converter implements
the smart battery control. With these features, the MB90370 series matches itself as keyboard controller with
smart battery control.
While inheriting the AT architecture of the F2MC*1 family, the instruction set for the F2MC-16LX CPU core of the
MB90370 series incorporates additional instructions for high-level languages, supports extended addressing
modes, and contains enhanced multiplication and division instructions as well as a substantial collection of
improved bit manipulation instructions. In addition, the MB90370 has an on-chip 32-bit accumulator which
enables processing of long-word data.
Notes: *1: F2MC stands for FUJITSU Flexible Microcontroller, a registered trademark of FUJITSU LIMITED.
*2: Purchase of Fujitsu I2C components conveys a license under the Philips I2C Patent Rights to use these
components in an I2C system, provided that the system conforms to the I2C Standard Specification as
defined by Philips.
FEATURES
Clock
•
•
Embedded PLL clock multiplication circuit
Operating clock (PLL clock) can selected from divided-by-2 of oscillation or one to four times
the oscillation (at oscillation of 4 MHz to 16 MHz)
•
Minimum instruction execution time of 62.5 ns (at oscillation of 4 MHz, four times the PLL
clock, operation at VCC of 3.3 V)
CPU addressing space of 16 Mbytes
Internal 24-bit addressing
Instruction set optimized for controller applications
•
•
•
Rich data types (bit, byte, word, long word)
Rich addressing mode (23 types)