General Device Information
The XC164SM derivatives are high-performance members of the Infineon XC166 Family of full featured single-chip CMOS microcontrollers. These devices extend the functionality and performance of the C166 Family in terms of instructions (MAC unit), peripherals, and speed. They combine high CPU performance (up to 40 million instructions per second) with high peripheral functionality and enhanced IO-capabilities. They also provide clock generation via PLL and various on-chip memory modules such as program Flash, program RAM, and data RAM.

Summary of Features
For a quick overview or reference, the XC164SM’s properties are listed here in a condensed way.
• High Performance 16-bit CPU with 5-Stage Pipeline
    – 25 ns Instruction Cycle Time at 40 MHz CPU Clock (Single-Cycle Execution)
    – 1-Cycle Multiplication (16 × 16 bit), Background Division (32 / 16 bit) in 21 Cycles
    – 1-Cycle Multiply-and-Accumulate (MAC) Instructions
    – Enhanced Boolean Bit Manipulation Facilities
    – Zero-Cycle Jump Execution
    – Additional Instructions to Support HLL and Operating Systems
    – Register-Based Design with Multiple Variable Register Banks
    – Fast Context Switching Support with Two Additional Local Register Banks
    – 16 Mbytes Total Linear Address Space for Code and Data
    – 1024 Bytes On-Chip Special Function Register Area (C166 Family Compatible)
• 16-Priority-Level Interrupt System with up to 63 Sources, Sample-Rate down to 50 ns
• 8-Channel Interrupt-Driven Single-Cycle Data Transfer Facilities via
    Peripheral Event Controller (PEC), 24-Bit Pointers Cover Total Address Space
• Clock Generation via on-chip PLL (factors 1:0.15 … 1:10), or
    via Prescaler (factors 1:1 … 60:1)
• On-Chip Memory Modules
    – 2 Kbytes On-Chip Dual-Port RAM (DPRAM)
    – 0/2/4 Kbytes1) On-Chip Data SRAM (DSRAM)
    – 2 Kbytes On-Chip Program/Data SRAM (PSRAM)
    – 32/64/1281) Kbytes On-Chip Program Memory (Flash Memory)
• On-Chip Peripheral Modules
    – 14-Channel A/D Converter with Programmable Resolution (10-bit or 8-bit) and
    Conversion Time (down to 2.55 μs or 2.15 μs)
    – 16-Channel General Purpose Capture/Compare Unit (CAPCOM2)
    – Capture/Compare Unit for flexible PWM Signal Generation (CAPCOM6)
    – Multi-Functional General Purpose Timer Unit with 5 Timers
    – Two Synchronous/Asynchronous Serial Channels (USARTs)
    – Two High-Speed-Synchronous Serial Channels
    – On-Chip Real Time Clock, Driven by the Main Oscillator
• Idle, Sleep, and Power Down Modes with Flexible Power Management
• Programmable Watchdog Timer and Oscillator Watchdog
• Up to 47 General Purpose I/O Lines,
    partly with Selectable Input Thresholds and Hysteresis
• On-Chip Bootstrap Loader
• On-Chip Debug Support via JTAG Interface
• 64-Pin Green LQFP Package for the -16F derivatives, 0.5 mm (19.7 mil) pitch (RoHS compliant)
• 64-Pin TQFP Package for the -4F/8F derivatives, 0.5 mm (19.7 mil) pitch (RoHS compliant)