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MC68HC11K0CFN3-MC68HC11K0CFN4-MC68HC11K1CFN3-MC68HC11K1CFN4-MC68HC11K1CFU4-MC68HC11K1VFN4-MC68HC11K4BCFN4-MC68HC11K4CFN4-MC68HC711K4CFN2-MC68HC711K4CFN3-MC68HC711K4CFN4-MC68HC711K4VFN3-MC68HC711K4VFN4-MC68L11K1FN3
8-Bit Microcontroller
TECHNICAL DATA
M68HC11 K Series
Technical Summary
8-Bit MicrocontrollerThe M68HC11 K-series microcontroller units (MCUs) are high-performance derivatives of the
MC68HC11F1 and have several additional features. The MC68HC11K0, MC68HC11K1,
MC68HC11K3, MC68HC11K4 and MC68HC711K4 comprise the series. These MCUs, with a nonmul-
tiplexed expanded bus, are characterized by high speed and low power consumption. Their fully static
design allows operation at frequencies from 4 MHz to dc.
This document contains information concerning standard, custom-ROM, and extended-voltage devic-
es. Standard devices include those with disabled ROM (MC68HC11K1), disabled EEPROM
(MC68HC11K3), disabled ROM and EEPROM (MC68HC11K0), or EPROM replacing ROM
(MC68HC711K4). Custom-ROM devices have a ROM array that is programmed at the factory to cus-
tomer specifications. Extended-voltage devices are guaranteed to operate over a much greater voltage
range (3.0 Vdc to 5.5 Vdc) at lower frequencies than the standard devices. Refer to the device ordering
information tables for details concerning these differences.
1 Features• M68HC11 CPU
• Power Saving STOP and WAIT Modes
• 768 Bytes RAM (All Saved During Standby)
• 24 Kbytes ROM or EPROM
• 640 Bytes Electrically Erasable Programmable Read Only Memory (EEPROM)
• Optional Security Feature Protects Memory Contents
• On-Chip Memory Mapping Logic Allows Expansion to Over 1 Mbyte of Address Space
• PROG Mode Allows Use of Standard EPROM Programmer (27C256 Footprint)
• Nonmultiplexed Address and Data Buses
• Four Programmable Chip Selects with Clock Stretching (Expanded Modes)
• Enhanced 16-Bit Timer with Four-Stage Programmable Prescaler
— Three Input Capture (IC) Channels
— Four Output Compare (OC) Channels
— One Additional Channel, Selectable as Fourth IC or Fifth OC
• 8-Bit Pulse Accumulator
• Four 8-Bit or Two 16-Bit Pulse Width Modulation (PWM) Timer Channels
• Real-Time Interrupt Circuit
• Computer Operating Properly (COP) Watchdog
• Clock Monitor
• Enhanced Asynchronous Nonreturn to Zero (NRZ) Serial Communications Interface (SCI)
• Enhanced Synchronous Serial Peripheral Interface (SPI)
• Eight-Channel 8-Bit Analog-to-Digital (A/D) Converter
• Seven Bidirectional Input/Output (I/O) Ports (54 Pins)
• One Fixed Input-Only Port (8 Pins)
• Available in 84-Pin Plastic Leaded Chip Carrier (PLCC), 84-Pin Windowed Ceramic Leaded Chip
Carrier (CLCC), and 80-Pin Quad Flat Pack (QFP)
