Part Number : M38B4XMXH-XXXXFP
Function : SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Package : QFP 80 Pin type
Maker : MITSUBISHI ELECTRIC
Pinouts : 
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
1 Basic machine-language instructions : 71
2. Minimum instruction execution time : 0.48 µs (at 4 2 MHz oscillation frequency)
3. Memory size
(1) ROM : 48K to 60K bytes
(2) RAM : 1024 to 2048 bytes
4. Programmable input/output ports : 51
5. High-breakdown-voltage output ports : 36
6. Interrupts : 21 sources, 16 vectors
7. Timers : 8-bit x 6, 16-bit x 1
8. Serial I/O1 (Clock-synchronized) : 8-bit x 1z (max 256-byte automatic transfer function)
9. Serial I/O2 (UART or Clock-synchronized) : 8-bit x 1
10. PWM : 14-bit x 1, 8-bit x 1 (also functions as timer 6)
11. A-D converter : 10-bit ✕12 channels
12. Fluorescent display function : Total 40 control pins
13. Interrupt interval determination function : 1
14. Watchdog timer : 20-bit x 1
Datasheet PDF Download : 
Others datasheet of same file :
M38B40E1H-XXXXFP, M38B40E2H-XXXXFP, M38B40E3H-XXXXFP,
M38B40E4H-XXXXFP, M38B40E5H-XXXXFP
