M37905F8CFP Datasheet, PDF (1/34 Pages) Mitsubishi Electric Semiconductor – 16-BIT CMOS MICROCOMPUTER

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MITSUBISHI MICROCOMPUTERS
M37905F8CFP, M37905F8CSP
16-BIT CMOS MICROCOMPUTER
DESCRIPTION
These are single-chip 16-bit microcomputers designed with high-per-
formance CMOS silicon gate technology, including the internal flash
memory and, being packaged in 64-pin plastic molded QFP or shrink
plastic molded DIP. These microcomputers support the 7900 Series
instruction set, which are enhanced and expanded instruction set
and are upper-compatible with the 7700/7751 Series instruction set.
The CPU of these microcomputers is a 16-bit parallel processor that
can also be switched to perform 8-bit parallel processing. Also, the
bus interface unit of these microcomputers enhances the memory
access efficiency to execute instructions fast. Therefore, these mi-
crocomputers are suitable for office, business, and industrial equip-
ment controller that require high-speed processing of large data.
Also, they are suitable for motor-control equipment since each of
them includes the motor control circuit.
For the internal flash memory, single-power-supply programming
and erasure, using a PROM programmer or the control by the cen-
tral processing unit (CPU), is supported. Also, each of these micro-
computers has the memory area dedicated for storing a certain
software which controls programming and erasure (reprogramming
control software). Therefore, on these microcomputers, the program
can easily be changed even after they are mounted on the board.
<Flash memory mode>
• ^{Power supply voltage .................................................. 5 V ± 0.5 V}
• ^{Programming/Erase voltage ........................................ 5 V ± 0.5 V}
• ^{Programming method .................... Programming in a unit of word}
• ^{Erase method ............................................ Block erase or Total erase}
M37905F8CFP, M37905F8CSP
............... 4 blocks (8 Kbytes ✕ 2, 16 Kbytes ✕ 1, 28 Kbytes ✕ 1)
• ^{Programming/Erase control by software command}
• ^{Maximum number of reprograms ............................................ 100}
APPLICATION
• ^{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, requiring motor control, such as}
inverter air conditioners and general-purpose inverters
DISTINCTIVE FEATURES
<Microcomputer mode>
• ^{Number of basic machine instructions .................................... 203}
• ^Memory
Flash memory (User ROM area) ................................... 60 Kbytes
RAM ............................................................................. 3072 bytes
Flash memory (Boot ROM area) ..................................... 8 Kbytes
• ^{Instruction execution time}
The fastest instruction at 20 MHz frequency ........................ 50 ns
• ^{Single power supply .................................................... 5 V ± 0.5 V}
• ^{Interrupts ........... 8 external sources, 23 internal sources, 7 levels}
• ^{Multi-functional 16-bit timer ................................................. 10 + 3}
(Three-phase motor drive waveform or Pulse motor drive waveform
output is available.)
• ^{Serial I/O (UART or Clock synchronous) ..................................... 3}
• ^{10-bit A-D converter .......................................... 12-channel inputs}
• ^{8-bit D-A converter ............................................ 2-channel outputs}
• ^{12-bit watchdog timer}
• ^{Programmable input/output (ports P1, P2, P4, P5, P6, P7, P8) ...... 50}