MICROCHIP AT89C5131A-RDTUL

AT89C5131A-L is a high-performance Flash version of the 80C51 single-chip 8-bit microcontrollers with full speed USB functions.

• 80C52X2 Core (6 Clocks per Instruction) – Maximum Core Frequency 48 MHz in X1 Mode, 24 MHz in X2 Mode – Dual Data Pointer – Full-duplex Enhanced UART (EUART) – Three 16-bit Timer/Counters: T0, T1 and T2 – 256 Bytes of Scratchpad RAM
• 16/32-Kbyte On-chip Flash EEPROM In-System Programming through USB – Byte and Page (128 bytes) Erase and Write – 100k Write Cycles
• 3-Kbyte Flash EEPROM for Bootloader – Byte and Page (128 bytes) Erase and Write – 100k Write Cycles
• 1-Kbyte EEPROM Data ( – Byte and Page (128 bytes) Erase and Write – 100k Write Cycles
• On-chip Expanded RAM (ERAM): 1024 Bytes
• Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply
• USB 1.1 and 2.0 Full Speed Compliant Module with Interrupt on Transfer Completion – Endpoint 0 for Control Transfers: 32-byte FIFO – 6 Programmable Endpoints with In or Out Directions and with Bulk, Interrupt or Isochronous Transfers – Endpoint 1, 2, 3: 32-byte FIFO – Endpoint 4, 5: 2 x 64-byte FIFO with Double Buffering (Ping-pong Mode) – Endpoint 6: 2 x 512-byte FIFO with Double Buffering (Ping-pong Mode) – Suspend/Resume Interrupts – Power-on Reset and USB Bus Reset – 48 MHz DPLL for Full-speed Bus Operation – USB Bus Disconnection on Microcontroller Request
• 5 Channels Programmable Counter Array (PCA) with 16-bit Counter, High-speed Output, Compare/Capture, PWM and Watchdog Timer Capabilities
• Programmable Hardware Watchdog Timer (One-time Enabled with Reset-out): 50 ms to 6s at 4 MHz
• Keyboard Interrupt Interface on Port P1 (8 Bits)
• TWI (Two Wire Interface) 400Kbit/s
• SPI Interface (Master/Slave Mode)
• 34 I/O Pins
• 4 Direct-drive LED Outputs with Programmable Current Sources: 2-6-10 mA Typical
• 4-level Priority Interrupt System (11 sources)
• Idle and Power-down Modes
• 0 to 32 MHz On-chip Oscillator with Analog PLL for 48 MHz Synthesis
• Industrial Temperature Range
• Low Voltage Range Supply: 2.7V to 3.6V (3.0V to 3.6V required for USB)
• Packages: SO28, PLCC52, VQFP64