8-bit Flash Microcontroller
Features
• 80C52 Compatible – 8051 Instruction Compatible
– Four 8-bit I/O Ports (44 Pins Version)
– Three 16-bit Timer/...
Description
Features
80C52 Compatible – 8051 Instruction Compatible
– Four 8-bit I/O Ports (44 Pins Version)
– Three 16-bit Timer/Counters – 256 bytes Scratch Pad RAM
– 11 Interrupt Sources With 4 Priority Levels ISP (In-System Programming) Using Standard VCC Power Supply Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply Boot ROM Contains Serial Loader for In-System Programming High-speed Architecture
– In Standard Mode:
40 MHz (Vcc 2.7V to 5.5V, Both Internal and External Code Execution)
60 MHz (Vcc 4.5V to 5.5V and Internal Code Execution Only) – In X2 Mode (6 Clocks/Machine Cycle)
20 MHz (Vcc 2.7V to 5.5V, Both Internal and External Code Execution)
30 MHz (Vcc 4.5V to 5.5V and Internal Code Execution Only) 128K bytes On-chip Flash Program/Data Memory
– 128 bytes Page Write with auto-erase
– 100k Write Cycles On-chip 8192 bytes Expanded RAM (XRAM)
– Software Selectable Size (0, 256, 512, 768, 1024, 1792, 2048, 4096, 8192 bytes) Dual Data Pointer Extended stack pointer to 512 bytes Variable Length MOVX for Slow RAM/Peripherals Improved X2 Mode with Independant Selection for CPU and Each Peripheral Keyboard Interrupt Interface on Port 1 SPI Interface (Master/Slave Mode) 8-bit Clock Prescaler Programmable Counter Array with:
– High Speed Output
– Compare/Capture – Pulse Width Modulator
– Watchdog Timer Capabilities Asynchronous Port Reset Two Full Duplex Enhanced UART with Dedicated Internal Baud Rate Generator Low EMI (inhibit ALE) ...
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