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STC12C5A32S2-35I Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
STC12C5A32S2-35ISTC2239Yes

### **Manufacturer:** STC (Hong Kong STC Microelectronics Co.

Manufacturer: STC (Hong Kong STC Microelectronics Co., Ltd.)

Part Number: STC12C5A32S2-35I

Specifications:

  • Core: 8051 (Enhanced 1T architecture, up to 35 MHz clock speed)
  • Flash Memory: 32 KB (ISP programmable)
  • RAM: 1.28 KB
  • EEPROM: 2 KB (optional)
  • I/O Ports: 36 (compatible with 5V logic)
  • Timers: 4 (2x 16-bit, 1x PCA with PWM/capture, 1x watchdog timer)
  • ADC: 8-channel, 10-bit
  • PWM: 4 channels (PCA module)
  • UART: 2 (full-duplex)
  • SPI: 1 (master/slave)
  • Operating Voltage: 3.3V–5.5V
  • Operating Temperature: -40°C to +85°C
  • Package: LQFP-44

Descriptions:

The STC12C5A32S2-35I is a high-performance 8051-based microcontroller with enhanced 1T architecture, offering faster execution compared to traditional 12-clock 8051 MCUs. It integrates multiple peripherals, including ADC, PWM, and communication interfaces, making it suitable for industrial control, automation, and embedded applications.

Features:

  • High-Speed 1T Core: Up to 35 MHz operation (12x faster than standard 8051).
  • On-Chip Peripherals: ADC, PWM, UART, SPI, and PCA (Programmable Counter Array).
  • Low Power Modes: Supports idle and power-down modes for energy efficiency.
  • Hardware Watchdog Timer: Enhances system reliability.
  • ISP (In-System Programming): Flash can be reprogrammed via serial port.
  • Wide Voltage Range: Operates from 3.3V to 5.5V.
  • EMI Resistance: Robust design for industrial environments.

This MCU is commonly used in motor control, smart sensors, and embedded systems requiring high-speed processing and analog signal handling.

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