Rainbow Electronics AT89C5131 - Manual

Rev. 4136A–USB–03/03
Features
• 80C52X2 Core (6 Clocks per Instruction)
– Maximum Core Frequency 40 MHz in X1 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 (XRAM): 1024 Bytes
• USB 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)
• 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
• Voltage Regulator and Reference Output: 3.3V/4 mA
• Low Power Voltage Range
– 3.0V to 3.6V
– 30 mA Max Operating Current (at 40 MHz)
– 100 µA Max Power-down Current
• Self-powered USB Voltage Range (Not Available on First Version)
– 3.6V to 5.5V
– 30 mA Max Operating Current (at 40 MHz)
– 200 µA Max Power-down Current
• Commercial and Industrial Temperature Range
• Packages: PLCC52, VQFP64, MLF48, SO28
8-bit Flash
Microcontroller
with Full Speed
USB Device
AT89C5131