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**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, P61to P65, P7, P84to P87,P9)
- Interrupts ...... 21 sources, 16 vectors
- Timers ............... 8-bit ✕ 6, 16-bit ✕ 1
- Serial I/O1 (Clock-synchronized) ............. 8-bit ✕ 1z
(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
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Additional Information
- Datasheet: Download 43E5337
- Chipdatas Part: CD86-43E5337
- Warehouse: China, Hong Kong
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- Last Updated: 2024/07/02 08:33 +0800
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