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N

ew Products

MB90890 Series

11

FIND  Vol.21

No.1

2003

Product Description

The new series provides the world first high-performance

16-bit CPU integrating dual-operation flash memories,
together with a CAN controller, all within a LQFP-48
compact package.

CAN, Controller Area Network, is now the prevailing

global standard for LAN systems installed in automobiles.
The trend began in Europe, the first region in the world to
adopt the CAN controller-mounted microcontrollers, and
now FUJITSU is taking the lead in the industry by offering
diversified lineups of CAN microcontrollers as solutions for
the control of safety and amenity functions in automobiles.
The Company has just succeeded in offering the world first
microcontrollers mounted with flash memories that allow
simultaneous execution of read/write operations. With this
innovation, the flash memories applied conventionally for
readout purposes to change programs can now be used to
store various types of data during power interruptions.

This innovation offers several other advantages, as well. By

eliminating the need for EEPROM and related component

parts externally installed in the conventional designs, it
substantially reduces cost. It also facilitates the new application
of advanced controls for amenity, safety and communication,
including learning and tracing of maintenance data with the
use of large-density nonvolatile data memories.

The new series also offers an improved operating margin to

F

2

MC-16LX Family

16-bit Microcontroller
Mounted with Dual-Operation
Flash Memories

MB90890 Series

A new F

2

MC-16LX CPU-driven microcontroller series is available with 64 K-byte

dual-operation flash memories and a CAN controller integrated in a compact

48-pin package. This is the world first lineup of microcontrollers mounted with

dual-operation flash memories.

Photo 1

External View

Summary of Contents for MB90890 Series

Page 1: ... this innovation the flash memories applied conventionally for readout purposes to change programs can now be used to store various types of data during power interruptions This innovation offers several other advantages as well By eliminating the need for EEPROM and related component parts externally installed in the conventional designs it substantially reduces cost It also facilitates the new a...

Page 2: ... oscillator set OFF CPU intermittent operation mode CPU operating clock repeatedly toggles ON and OFF based on preset values Resources I O port A maximum of 36 ports available including four for higher current outputs 18 bit time base counter Watchdog timer Clock timer 1 channel 8 16 bit PPG timer 8 bit 4 channel or 16 bit 2 channel 16 bit reload timer 2 channels 16 bit I O timer 16 bit free runni...

Page 3: ... dual operation flash memory allow rewrites by executing programs on flash memory thereby eliminating the need to transfer the programs to RAM This obviates the need to make provisions against power failures during program execution on RAM and cuts down the program download time as well Flash memory rewrites performed concurrently with system control Fig 3 illustrates the control sequence for rewr...

Page 4: ...eset factor can be generated This ensures that the flash memories are fully protected against write erase attempts even in the case of program runaway Dual operation flash memory integrated microcontroller substitutes for an external EEPROM Using the dual operation flash memory integrated microcontroller as a substitution for EEPROM offers the following benefits Reduced system board mounting area ...

Page 5: ...s available development tools Typical Applications The new series is a lineup of 16 bit commodity grade microcontrollers tailor engineered for applications that require high speed real time processing data rewriting or data storage to nonvolatile memory while executing programs on flash memories Each device is incorporated in a compact 48 pin package suitable for system board installation within a...

Page 6: ... Fall edge activated in response to the input of H and L levels Available external interruption or extended intelligent I O service EI2OS 10 bit A D converter Number of channels 8 Resolution Either 10 bit or 8 bit Conversion time 6 125μs at a machine clock frequency of 16MHz including the sampling time UART SCI Number of channels 2 With full duplex double buffers Transmission available in either s...

Page 7: ...46 45 44 43 42 41 40 39 38 37 13 14 15 16 17 18 19 20 21 22 23 24 AVSS X1A P36 X0A P35 P33 P32 SIN0 P31 SCK0 P30 SOT0 P44 RX P43 TX P42 SOT1 P41 SCK1 P40 SIN1 P21 TOT0 P22 TIN1 P23 TOT1 P24 INT4 P25 INT5 P26 INT6 P27 INT7 MD2 MD1 MD0 RST V CC 1 2 3 4 5 6 7 8 9 10 11 12 Figure 6 Pin Assignments Hardware Main unit MB2141A Software SOFTUNE V3 Workbench SOFTUNE V3 C Compiler SOFTUNE V3 Assembler SOFTU...

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