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DESCRIPTION

The M37753FFCFP and the M37753FFCHP are single-chip microcomputers designed with high-performance CMOS silicon gate technology, including the internal flash memory. These are housed in 80-pin plastic molded QFP.

These microcomputers have a CPU and a bus interface unit. The CPU is a 16-bit parallel processor that can also be switched to perform 8-bit parallel processing, and the bus interface unit enhances the memory access efficiency to execute instructions fast.

In addition to the 7700 Family basic instructions, the M37753FFCFP and the M37753FFCHP have 6 special instructions which contain instructions for signed multiplication/division; these added instructions improve the servo arithmetic performance to control hard disk drives and so on.

These microcomputers also include the flash memory, RAM, multiple-function timers, motor control function, serial I/O, A-D converter, D-A converter, and so on.

DISTINCTIVE FEATURES

? Number of basic machine instructions .................................... 109

(103 basic instructions of 7700 Family + 6 special instructions)

? Memory size Flash memory ................................ 120 Kbytes

RAM ................................................3968 bytes

? Instruction execution time

The fastest instruction at 40 MHz frequency ...................... 100 ns

? Single power supply .......................................................5V ¡À10

? Low power dissipation (at 40 MHz frequency) .......125 mW (Typ.)

? Interrupts ........................................................... 21 types, 7 levels

? Multiple-function 16-bit timer ................................................... 5+3

(three-phase motor drive waveform or pulse motor control waveform output)

? Serial I/O (UART or clock synchronous) ..................................... 2

? 10-bit A-D converter ............................................ 8-channel inputs

? 8-bit D-A converter ............................................ 2-channel outputs

? 12-bit watchdog timer

? Programmable input/output (ports P0¡ªP8) .............................. 68

? Small package [M37753FFCHP]

................................... 80-pin fine pitch QFP (lead pitch : 0.5 mm)

? Supply voltage ................................................... VCC = 5 V ¡À 10

? Program/Erase voltage...................................... VPP = 12 V ¡À 5

? Programming method ........................ Programming in unit of byte

? Erasing method .............................................................................

Batch erasing and 2-division-block erasing (in CPU reprogramming mode)

? Program/Erase control by software command

? Number of times for programming/erasing .............................. 100

APPLICATION

Control devices for personal computer peripheral equipment such as CD-ROM drives, hard disk drives, high density FDD, printers

Control devices for office equipment such as copiers and facsimiles

Control devices for industrial equipment such as communication and measuring instruments

Control devices for equipment required for motor control such as inverter air conditioner and general purpose inverter