The AT89C5131A-S3SUM is a 1-chip 8-bit high-performance flash version of the 80C51 Microcontroller with full-speed USB functions. This device retains the features of the 80C52 and adds 1024 bytes of on-chip expanded ERAM, dual data pointer, 16-bit up/down timer, programmable counter array, up to four programmable LED current sources, programmable hardware watchdog and power-on reset. Two software-selectable modes of reduced activity further reduce power consumption. In the idle mode the CPU is frozen while the timers, serial ports and interrupt system operate. In the power-down mode the RAM is saved and the peripheral clock is frozen, but the device has full wake-up capability through USB events or external interrupts.
- 80C52X2 core (6 clocks per instruction)
- 16/32KB on-chip flash EEPROM in-system programming through USB
- 3KB flash EEPROM for bootloader
- 1kB EEPROM data - Byte and page (128 bytes) erase and write
- 1024-byte on-chip expanded RAM (ERAM)
- 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
- 100ms to 3s at 8MHz programmable hardware watchdog timer (one-time enabled with reset-out)
- Keyboard interrupt interface on port P1 (8 bits)
- 400kBps TWI (two wire interface)
- Serial peripheral interface (SPI)
- 34 I/O pins
- 4 direct-drive LED outputs with programmable current sources (2-6-10mA typical)
- 4-level priority interrupt system (11 sources)
- Idle and power-down modes
- 0 to 24MHz on-chip oscillator with analogue PLL for 48MHz synthesis
- Industrial temperature range
Other details
| Brand |
MICROCHIP |
| Part Number |
AT89C5131A-S3SUM |
| Quantity |
Each |
| Technical Data Sheet EN |
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| Product Change Notice EN |
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| CAD CadSoft_EAGLE EN |
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