Description
●AT89C5131 is a high-performance Flash version of the 80C51 single-chip 8-bit microcontrollers with full speed USB functions.
●Features
●• 80C52X2 Core (6 Clocks per Instruction)
●– Maximum Core Frequency 48 MHz in X1 Mode, 24MHz 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
●• 32-Kbyte On-chip Flash In-System Programming through USB or UART
●• 4-Kbyte EEPROM for Boot (3-Kbyte) and Data (1-Kbyte)
●• On-chip Expanded RAM (ERAM): 1024 Bytes
●• 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
●• Low Power Voltage Range
●– 3.0V to 3.6V
●– 30 mA Max Operating Current (at 40 MHz)
●– 100 µA Max Power-down Current
●• Industrial Temperature Range
●• Packages: PLCC52, VQFP64, MLF48, SO28
