M38B4XMXH Datasheet, PDF (1/78 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
38B4 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 38B4 group is the 8-bit microcomputer based on the 740 family
core technology.
The 38B4 group has six 8-bit timers, a 16-bit timer, a fluorescent
display automatic display circuit, 12-channel 10-bit A-D converter, a
serial I/O with automatic transfer function, which are available for
controlling musical instruments and household appliances.
FEATURES
• ^{Basic machine-language instructions ....................................... 71}
• ^{Minimum instruction execution time ................................. 0.48 µs}
(at 4.2 MHz oscillation frequency)
• ^{Memory size}
ROM ............................................. 48K to 60K bytes
RAM .......................................... 1024 to 2048 bytes
• ^{Programmable input/output ports ............................................. 51}
• ^{High-breakdown-voltage output ports ...................................... 36}
• ^{Software pull-up resistors (Ports P5, P61 to P65, P7, P84 to P87,}
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)
• ^{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}
PIN CONFIGURATION (TOP VIEW)
• ^{Buzzer output ............................................................................. 1}
• ^{Clock generating circuit ...................................... Built-in 2 circuits}
(connect to external ceramic resonator or quartz-crystal
oscillator)
• ^{Power source voltage}
In high-speed mode ................................................... 4.0 to 5.5 V
(at 4.2 MHz oscillation frequency)
2.7 to 5.5 V
(at 2.0 MHz oscillation frequency)
In middle-speed mode ................................................ 2.7 to 5.5 V
(at 4.2 MHz oscillation frequency)
In low-speed mode ..................................................... 2.7 to 5.5 V
(at 32 kHz oscillation frequency)
• ^{Power dissipation}
In high-speed mode .......................................................... 35 mW
(at 4.2 MHz oscillation frequency)
In low-speed mode ............................................................. 60 µW
(at 32 kHz oscillation frequency, at 3 V power source voltage)
In stop mode ......................................................................... 1 µA
(at clock stop)
• ^{Operating temperature range ................................... –20 to 85 °C}
APPLICATION
Musical instruments, VCR, household appliances, etc.
P57/SRDY2/SCLK22
65
P56/SCLK21
66
P55/TxD
67
P54/RxD
68
P53/SCLK12
69
P52/SCLK11
70
P51/SOUT1
71
P50/SIN1
72
AVSS
73
VREF
74
P65/SSTB1/AN11
75
P64/INT4/SBUSY1/AN10
76
P63/AN9
77
P62/SRDY1/AN8
78
P77/AN7
79
P76/AN6
80
M38B4xMxH-XXXXFP
40
P30/FLD24
39
P31/FLD25
38
P32/FLD26
37
P33/FLD27
36
P34/FLD28
35
P35/FLD29
34
P36/FLD30
33
P37/FLD31
32
P80/FLD32
31
P81/FLD33
30
P82/FLD34
29
P83/FLD35
28
VEE
27
P84/FLD36
26
P85/RTP0/FLD37
25
P86/RTP1/FLD38
Note: In the mask option type P, INT3 and CNTR1 cannot be used.
Package type : 80P6N-A
80-pin plastic-molded QFP
Fig. 1 Pin configuration of M38B4xMxH-XXXXFP