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Part Number: M38B79MFH
Description: The 38B7 group is the 8-bit microcomputer based on the 740 family core technology.The 38B7 group has six 8-bit ...
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M38B79MFH
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General Description
M38B79MFH General Description
The 38B7 group is the 8-bit microcomputer based on the 740 family core technology.
The 38B7 group has six 8-bit timers, one 16-bit timer, a fluorescent display automatic display circuit, 16-channel 10-bit A-D converter, a serial I/O with automatic transfer function, which are available for controlling musical instruments and household appliances.
The 38B7 group has variations of internal memory type. For details, refer to the section on part numbering.
For details on availability of microcomputers in the 38B7 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 the mask ROM version. For the details, refer to the section on the mask option of pull-down resistor.
M38B79MFH Maximum Ratings
| Symbol | Parameter | Conditions | Ratings | Unit |
| VCC | Power source voltages | All voltages are based on VSS. Output transistors are cut off. |
0.3 to 6.5 | V |
| VEE | Pull-down power source voltages | VCC 45 to VCC +0.3 | V | |
| VI |
nput voltage P64P67, P70P77, P80P83, P90P97, PA0PA7, PB0PB6 |
0.3 to VCC +0.3 | V | |
| VI | Input voltage P10P17, P30P37, P40P47,P50P57, P60P63 | VCC 45 to VCC +0.3 | V | |
| VI | Input voltage RESET , XIN, CNVSS | 0.3 to VCC +0.3 | V | |
| VI | Input voltage XCIN | 0.3 to VCC +0.3 | V | |
| VO | Output voltage P00P07, P10P17, P20P27,P30P37, P40P47, P50P57, P60P63 |
VCC 45 to VCC +0.3 | V | |
| VO | Output voltage P64P67, P80P83, P70P77,P90P97, PA0PA7, PB0PB6, XOUT, XCOUT |
0.3 to VCC +0.3 | V | |
| Pd | Power dissipation | Ta = 20 to 65 °C | 800 | mW |
| Ta = 65 to 85 °C | 800 12.5 * (Ta65) | mW | ||
| Topr | Operating temperature | 20 to 85 | °C | |
| Tstg | Storage temperature | 40 to 125 | °C |
M38B79MFH Features
<Microcomputer mode>
• Basic machine-language instructions ...................................... 71
• The minimum instruction execution time .......................... 0.48 µs
(at 4.19 MHz oscillation frequency)
• Memory size
ROM ............................................................................. 60K bytes
RAM ............................................................................2048 bytes
• Programmable input/output ports ........................................... 75
• High-breakdown-voltage output ports ..................................... 52
• Software pull-up resistors . (Ports P64 to P67, P7, P80 to P83, P9,
PA, PB)
• Interrupts ................................................. 22 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
• Serial I/O3 (Clock-synchronized) .................................... 8-bit * 1
• PWM ............................................................................. 14-bit *1
8-bit ✕ 1 (also functions as timer 6)
• A-D converter .............................................. 10-bit * 16 channels
• D-A converter ................................................................ 1 channel
• Fluorescent display function ......................... Total 56 control pins
• Interrupt interval determination function .................................... 1
(Serviceable even in low-speed mode)
• Watchdog timer ............................................................ 16-bit *1
• Buzzer output ............................................................................ 1
• Two clock generating circuits
Main clock (XINXOUT) .......................... Internal feedback resistor
Sub-clock (XCINXCOUT) ..........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)
(*: 4.0 to 5.5 V for Flash memory version)
• 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
• Basic machine-language instructions ...................................... 71
• The minimum instruction execution time .......................... 0.48 µs
(at 4.19 MHz oscillation frequency)
• Memory size
ROM ............................................................................. 60K bytes
RAM ............................................................................2048 bytes
• Programmable input/output ports ........................................... 75
• High-breakdown-voltage output ports ..................................... 52
• Software pull-up resistors . (Ports P64 to P67, P7, P80 to P83, P9,
PA, PB)
• Interrupts ................................................. 22 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
• Serial I/O3 (Clock-synchronized) .................................... 8-bit * 1
• PWM ............................................................................. 14-bit *1
8-bit ✕ 1 (also functions as timer 6)
• A-D converter .............................................. 10-bit * 16 channels
• D-A converter ................................................................ 1 channel
• Fluorescent display function ......................... Total 56 control pins
• Interrupt interval determination function .................................... 1
(Serviceable even in low-speed mode)
• Watchdog timer ............................................................ 16-bit *1
• Buzzer output ............................................................................ 1
• Two clock generating circuits
Main clock (XINXOUT) .......................... Internal feedback resistor
Sub-clock (XCINXCOUT) ..........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)
(*: 4.0 to 5.5 V for Flash memory version)
• 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
M38B79MFH Typical Application
Musical instruments, VCR, household appliances, etc.
M38B79MFH Connection Diagram
M38B79MFH
PDF/DataSheet Download
- Datasheet: M38B79MFH
- File Size: 1593099 KB
- Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]
- Click here to Download
- ·M38000E1-XXXFP
- MITSUBISHI [Mitsubishi Electric Semiconductor]
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- MITSUBISHI [Mitsubishi Electric Semiconductor]
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- ·M38000E1-XXXHP
- MITSUBISHI [Mitsubishi Electric Semiconductor]
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- 4303892 KB
- ·M38000E1-XXXSP
- MITSUBISHI [Mitsubishi Electric Semiconductor]
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- ·M38000E1-XXXSS
- MITSUBISHI [Mitsubishi Electric Semiconductor]
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- ·M38000E2-XXXFP
- MITSUBISHI [Mitsubishi Electric Semiconductor]
- 8-BIT SINGLE-CHIP MICROCOMPUTER
- 2447095 KB
- ·M38000E2-XXXFS
- MITSUBISHI [Mitsubishi Electric Semiconductor]
- 8-BIT SINGLE-CHIP MICROCOMPUTER
- 2447095 KB
- ·M38000E2-XXXHP
- MITSUBISHI [Mitsubishi Electric Semiconductor]
- 8-BIT SINGLE-CHIP MICROCOMPUTER
- 4303892 KB
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