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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