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Description
The 89C51RC2-UM is a high-performance FLASH version of the 80C51 8-bit microcontroller. It includes a 16K or 32Kbytes Flash memory block for program and data.
Specifications and features
- 80C52 Compatible
- 8051 pin and instruction compatible
- Four 8-bit I/O ports
- Three 16-bit timer/counters
- 256 bytes scratch pad RAM
- 10 Interrupt sources with 4 priority levels
- Dual Data Pointer
- Variable length MOVX for slow RAM/peripherals
- ISP (In System Programming) using standard VCC power supply.
- Boot ROM contains low level FLASH programming routines and a default serial loader
- High-Speed Architecture
- 40 MHz in standard mode
- 20 MHz in X2 mode (6 clocks/machine cycle)
- 16K/32K bytes on-chip FLASH program/data Memory
- Byte and page (128 bytes) erase and write
- 100k write cycles
- On-chip 1024 bytes expanded RAM (XRAM)
- Software selectable size (0, 256, 512, 768, 1024 bytes)
- 256 bytes selected at reset for TS87C51RB2/RC2 compatibility
- Keyboard interrupt interface on port P1
- SPI Interface (Master/Slave Mode)
- 8-bit clock prescaler
- Improved X2 mode with independent selection for CPU and each peripheral
- Programmable Counter Array 5 Channels with:
- High-Speed Output
- Compare / Capture
- Pulse Width Modulator
- Watchdog Timer Capabilities
- Asynchronous port reset
- Full-duplex Enhanced UART
- Dedicated Baud Rate Generator for UART
- Low EMI (inhibit ALE)
Application Scenarios
The 89C51RC2-UM microcontroller is commonly utilized in applications that require high-performance 8-bit microcontrollers with 16K or 32Kbytes of on-chip FLASH memory.
Comparison
Advantages- Fast operating speed, up to 40 MHz in standard mode and 20 MHz in X2 mode.
- Large on-chip FLASH memory block.
- 10 interrupt sources with 4 priority levels.
- Low EMI (inhibit ALE) for reducing electromagnetic interference.
- ISP (In System Programming) feature for programming using standard VCC power supply.
- Ideal for applications with high-performance requirements.
Disadvantages- Only includes 256 bytes of scratch pad RAM.
- Asynchronous port reset may pose a risk of unexpected behavior.
- May be more costly than other 8-bit microcontrollers due to its high-performance capabilities and large on-chip memory.
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Datasheet
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Shopping guide
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Additional Information
- Datasheet: Download 89C51RC2-UM
- Chipdatas Part: CD86-89C51RC2-UM
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/28 19:43 +0800
Refund
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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