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The HMS87C1201 is a microcontroller manufactured by HUNIX. Below are its specifications, descriptions, and features:

Specifications:

• Architecture: 8-bit microcontroller
• Core: Based on the 8051 instruction set
• Clock Speed: Up to 12 MHz
• Program Memory (ROM): 1 KB (OTP/EPROM)
• RAM: 128 bytes
• I/O Ports: 15 general-purpose I/O pins
• Timers/Counters: 2 x 16-bit
• Interrupts: 5 interrupt sources
• ADC: None (external ADC required)
• Communication Interfaces: UART (serial communication)
• Operating Voltage: 2.7V to 5.5V
• Package: DIP-20, SOP-20

Descriptions:

The HMS87C1201 is a low-cost, high-performance 8-bit microcontroller designed for embedded control applications. It is compatible with the 8051 instruction set, making it suitable for legacy system upgrades or new designs requiring simple control logic.

Features:

• Low-power consumption (suitable for battery-operated devices)
• Wide operating voltage range (2.7V to 5.5V)
• On-chip oscillator (supports external crystal or RC oscillator)
• One UART for serial communication
• Power-saving modes (Idle and Power-down modes)
• Industrial temperature range (-40°C to +85°C)
• One-time programmable (OTP) memory for secure firmware storage

This microcontroller is commonly used in appliance control, small automation systems, and simple embedded applications.

Would you like additional details on pin configurations or application notes?