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Atmel Electronic Components Datasheet

AT89C5131A-L Datasheet

8-bit Flash Microcontroller

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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
8-bit Flash
Microcontroller
with Full Speed
USB Device
AT89C5131A-L
Rev. 4338F–USB–08/07


Atmel Electronic Components Datasheet

AT89C5131A-L Datasheet

8-bit Flash Microcontroller

No Preview Available !

Description
AT89C5131A-L is a high-performance Flash version of the 80C51 single-chip 8-bit
microcontrollers with full speed USB functions.
AT89C5131A-L features a full-speed USB module compatible with the USB specifica-
tions 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.
AT89C5131A-L retains the features of the Atmel 80C52 with extended Flash capacity
(32-Kbyte), 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, AT89C5131A-L 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.
AT89C5131A-L has two software-selectable modes of reduced activity for further reduc-
tion 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.
2 AT89C5131A-L
4338F–USB–08/07


Part Number AT89C5131A-L
Description 8-bit Flash Microcontroller
Maker ATMEL
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AT89C5131A-L Datasheet PDF






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