Atmel AT89C51AC3-SLSUM 8-bit microcontroller family MCS-51 ATMEL production. There Routine Boot Loader via UART to the ISP.
specifications:
- Architecture: 8051
- Working voltage: 3VDC - 5.5 VDC
- Size of program memory: 64K Byte Flash
- Volatile data memory size: 2304 Byte SRAM
- The size of non-volatile data memory: 2K Bytes EEPROM
- ADC: 8 channel 10-bit ADC input Multiplexed
- Peripheral: 5 channel 16-bit PCA (PWM 8-bit, High Speed Output, Timer and Edge Capture)
- Number of I / O: 36
- Timer / Counter: 3 channel Timer / Counters 16-bit, 5 channel PCA (Programmable Counter Array)
- Working frequency: 40 MHz / 60 MHz (standard mode) or 20 MHz / 30 MHz (X2 Mode)
- Interface programming: ISP
- Interface peripherals: Full Duplex UART Compatible 80C51
- Special features: X2 mode (300ns cycle time)
- Packaging: PLCC-44
