M38B53M4-059FP datasheet(18/355 Pages) MITSUBISHI

18 / 355 page

38B5 Group User’s Manual

1-2

HARDWARE

DESCRIPTION/FEATURES/APPLICATION/PIN CONFIGURATION

DESCRIPTION

The 38B5 group is the 8-bit microcomputer based on the 740 family

core technology.

The 38B5 group has six 8-bit timers, a 16-bit timer, a fluorescent dis-

play automatic display circuit, 12-channel 10-bit A-D converter, a se-

rial I/O with automatic transfer function, which are available for con-

trolling musical instruments and household appliances.

The 38B5 group has variations of internal memory size and packag-

ing. For details, refer to the section on part numbering.

For details on availability of microcomputers in the 38B5 group, refer

to the section on group expansion.

Built-in pull-down resistors connected to high-breakdown voltage ports

are available by specifying with the mask option in some products. For

the details, refer to the section on the mask option of pull-down resis-

tor.

FEATURES

• Basic machine-language instructions ....................................... 71

• The minimum instruction execution time .......................... 0.48 µs

(at 4.19 MHz oscillation frequency)

• Memory size

ROM ............................................. 24K to 60K bytes

RAM .......................................... 1024 to 2048 bytes

• Programmable input/output ports ............................................. 55

• High-breakdown-voltage output ports ...................................... 36

• Software pull-up resistors ....... (PortsP5,P61toP65,P7,P84toP87,P9)

• Interrupts .................................................. 21 sources, 16 vectors

• Timers ........................................................... 8-bit ! 6, 16-bit ! 1

• Serial I/O1 (Clock-synchronized) ................................... 8-bit ! 1

...................... (max. 256-byte automatic transfer function)

Fig. 1 Pin configuration of M38B5xMxH-XXXXFP

Package type : 80P6N-A

80-pin plastic-molded QFP

PIN CONFIGURATION (TOP VIEW)

• Serial I/O2 (UART or Clock-synchronized) .................... 8-bit ! 1

• PWM ............................................................................ 14-bit ! 1

8-bit ! 1 (also functions as timer 6)

• A-D converter .............................................. 10-bit ! 12 channels

• Fluorescent display function ......................... Total 40 control pins

• Interrupt interval determination function ..................................... 1

• Watchdog timer ............................................................ 20-bit ! 1

• Buzzer output ............................................................................. 1

• 2 Clock generating circuit

Main clock (XIN–XOUT) .......................... Internal feedback resistor

Sub-clock (XCIN–XCOUT) .......... Without internal feedback resistor

(connect to external ceramic resonator or quartz-crystal

oscillator)

• Power source voltage

In high-speed mode ................................................... 4.0 to 5.5 V

(at 4.19 MHz oscillation frequency and high-speed selected)

In middle-speed mode ................................................ 2.7 to 5.5 V

(at 4.19 MHz oscillation frequency and middle-speed selected)

In low-speed mode ..................................................... 2.7 to 5.5 V

(at 32 kHz oscillation frequency)

• Power dissipation

In high-speed mode .......................................................... 35 mW

(at 4.19 MHz oscillation frequency)

In low-speed mode ............................................................. 60

µW

(at 32 kHz oscillation frequency, at 3 V power source voltage)

• Operating temperature range ................................... –20 to 85 °C

APPLICATION

Musical instruments, VCR, household appliances, etc.

P65/SSTB1/AN11

P64/INT4/SBUSY1/AN10

M38B5xMxH-XXXXFP

P63/AN9

P62/SRDY1/AN8

VEE

P76/AN6

P77/AN7

VREF

AVSS

P50/SIN1

P51/SOUT1

P52/SCLK11

P53/SCLK12

P54/RxD

P55/TxD

P56/SCLK21

P57/SRDY2/SCLK22

P86/RTP1/FLD38

P83/FLD35

P82/FLD34

P81/FLD33

P80/FLD32

P37/FLD31

P36/FLD30

P35/FLD29

P34/FLD28

P33/FLD27

P32/FLD26

P31/FLD25

P30/FLD24

P85/RTP0/FLD37

P84/FLD36

Note: In the mask option type P, INT3 and CNTR1 cannot be used.

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