mc68hc05l25 Freescale Semiconductor, Inc, mc68hc05l25 Datasheet - Page 13

• Manufacturer Part Number: mc68hc05l25
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 1
General Description
1.1 Introduction
The MC68HC05L25 is a member of M68HC05 Family of low-cost microcontroller units (MCUs). A
functional block diagram of the MC68HC05L25 is shown in
1.2 Features
Freescale Semiconductor
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Low-Cost, HC05 Core
48-Pin Quad Flat Pack (VQFP) and
52-Pin Quad Flat Pack (TQFP)
6160 Bytes of User ROM, Including 16 Bytes of User Vectors
176 Bytes of User RAM
24 x 4 or 25 x 3 Multiplexed Liquid Crystal Display (LCD) Driver
Serial Peripheral Interface (SPI)
Two-Channel Analog-to-Digital (A/D) Converter
16-Bit Event Counter
Time Base Timer
Computer Operating Properly (COP) Watchdog Timer
Infrared (IR) Remote Carrier Output (Software Selectable 33-to-67 Percent or 50-to-50 Percent
Duty)
Buzzer Output (Software-Selectable Frequencies)
20 Bidirectional Input/Output (I/O) Lines, Including:
–
–
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–
Software-Selectable Sensitivity on IRQ Interrupt
(Edge- and Level-Sensitive or Edge-Sensitive Only)
STOP Instruction Disable Option
On-Chip Dual 4-MHz/32-kHz (Typical) Oscillator Circuits
Single-Chip, Self-Check, and Test Modes
Power-Saving Stop and Wait Modes
Four Key Wakeup Input Lines
Software-Programmable Pullups
Software-Programmable Open-Drain Lines
High-Current (20 mA) Lines
MC68HC05L25 Data Sheet, Rev. 3.1
Figure
1-1.
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