Description

AT89C5131A-L 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, 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-KbyteFlash 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