Features
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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
16/32-Kbyte On-chip Flash In-System Programming through USB
– Byte and Page (128 bytes) Erase and Write
– 100k Write Cycles
4-Kbyte EEPROM for Bootloader (3-Kbyte) and Data (1-Kbyte)
– 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
– 48 MHz PLL for Full-speed Bus Operation
– 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): 100 ms
to 3s at 8 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 24 MHz On-chip Oscillator with Analog PLL for 48 MHz Synthesis
Industrial Temperature Range
Extended Range Power Supply: 2.7V to 5.5V (3.3V to 5.5V required for USB)
Packages: PLCC52, VQFP64, QFN32
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8-bit Flash
Microcontroller
with Full Speed
USB Device
AT89C5130A-M
AT89C5131A-M
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Rev. 4337C–USB–02/05
Description
AT89C5130A/31A-M is a high-performance Flash version of the 80C51 single-chip 8-bit
microcontrollers with full speed USB functions.
AT89C5130A/31A-M features a full-speed USB module compatible with the USB speci-
fications Version 1.1 and 2.0. This module integrates the USB transceivers with a 3.3V
voltage regulator and the Serial Interface Engine (SIE) with Digital Phase Locked Loop
and 48 MHz clock recovery. USB Event detection logic (Reset and Suspend/Resume)
and FIFO buffers supporting the mandatory control Endpoint (EP0) and up to 6 versatile
Endpoints (EP1/EP2/EP3/EP4/EP5/EP6) with minimum software overhead are also part
of the USB module.
AT89C5130A/31A-M retains the features of the Atmel 80C52 with extended Flash
capacity (16/32-Kbytes), 256 bytes of internal RAM, a 4-level interrupt system, two 16-
bit timer/counters (T0/T1), a full duplex enhanced UART (EUART) and an on-chip
oscillator.
In addition, AT89C5130A/31A-M has an on-chip expanded RAM of 1024 bytes (ERAM),
a dual data pointer, a 16-bit up/down Timer (T2), a Programmable Counter Array (PCA),
up to 4 programmable LED current sources, a programmable hardware watchdog and a
power-on reset.
AT89C5130A/31A-M has two software-selectable modes of reduced activity for further
reduction in power consumption. In the idle mode the CPU is frozen while the timers, the
serial ports and the interrupt system are still operating. In the power-down mode the
RAM is saved, the peripheral clock is frozen, but the device has full wake-up capability
through USB events or external interrupts.
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AT89C5130A/31A-M
4337C–USB–02/05
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