HCMOS Single-Chip Microcontroller

INTRODUCTION
The HCMOS MC68HC11A8 is an advanced 8-bit microcontroller (MCU) with highly sophisticated on-chip peripheral capabilities. A fully static design and high-density complementary metal-oxide semiconductor (HCMOS) fabrication process allow E-series devices to operate at frequencies from 3 MHz to dc, with very low power consumption.

FEATUREs
The following are some of the hardware and software highlights.

Hardware Features
• 8 Kbytes of ROM
• 512 Bytes of EEPROM
• 256 Bytes of RAM (All Saved During Standby) Relocatable to Any 4K Boundary
• Enhanced 16-Bit Timer System:
    — Four Stage Programmable Prescaler
    — Three Input Capture Functions
    — Five Output Compare Functions
• 8-Bit Pulse Accumulator Circuit
• Enhanced NRZ Serial Communications Interface (SCI)
• Serial Peripheral Interface (SPI)
• Eight Channel, 8-Bit Analog-to-Digital Converter
• Real Time Interrupt Circuit
• Computer Operating Properly (COP) Watchdog System
• Available in Dual-In-Line or Leaded Chip Carrier Packages

Software Features
• Enhanced M6800/M6801 Instruction Set
• 16 x 16 Integer and Fractional Divide Features
• Bit Manipulation
• WAIT Mode
• STOP Mode