XC822/824 Variant Devices
The XC822/824 product family features devices with different configurations, program memory sizes, packages options and temperature profiles, to offer cost-effective solutions for different application requirements.

Summary of Features
The XC822/824 has the following features:
• High-performance XC800 Core
    – compatible with standard 8051 processor
    – two clocks per machine cycle architecture (for memory access without wait state)
    – two data pointers
• On-chip memory
    – 8 Kbytes of Boot ROM, Library ROM and User routines
    – 256 bytes of RAM
    – 256 bytes of XRAM
    – 2/4 Kbytes of Flash (includes memory protection strategy)
• I/O port supply at 2.5 V - 5.5 V and core logic supply at 2.5 V (generated by embedded voltage regulator)
• Power-on reset generation
• Brownout detection for IO supply and core logic supply
• 48 MHz on-chip OSC for clock generation
    – Loss-of-Clock detection
• Power saving modes
    – idle mode
    – power-down mode with wake-up capability via real-time clock interrupt
    – clock gating control to each peripheral
• Programmable 16-bit Watchdog Timer (WDT) running on independent oscillator with programmable window feature for refresh operation and warning prior to overflow
• Three ports
    – Up to 17 pins as digital I/O
    – 4 pin as digital/analog input
• 4-channel, 10-bit ADC
    – support up to 3 differential input channel
    – results filtering by data reduction or digital low-pass filter, for up to 13-bit results
• Up to 4 channels, Out of range comparator
• Three 16-bit timers
    – Timer 0 and Timer 1 (T0 and T1)
    – Timer 2 (T2)
• Periodic wake-up timer
• Multiplication/Division Unit for arithmetic operations (MDU)
• Capture and Compare unit for PWM signal generation (CCU6)
• A full-duplex or half-duplex serial interface (UART)
• Synchronous serial channel (SSC)
• Inter-IC (IIC) serial interface
• LED and Touch-sense Controller (LEDTSCU)
• On-chip debug support via single pin DAP interface (SPD)
• Packages:
    – PG-DSO-20
    – PG-TSSOP-16
• Temperature range TA:
    – SAF (-40 to 85 °C)
    – SAX (-40 to 105 °C)
    – SAK (-40 to 125 °C)