8-bit Embedded EEPROM for User Data Storage AB MCUs

Overview

The HC08AB Family is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs) with embedded EEPROM or Flash memory for user data storage. All MCUs in the family use the enhanced M68HC08 central processor unit (CPU08) and are available with a variety of modules, memory sizes and types, and package types.

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Features

High-Performance 68HC08 CPU Core

8 MHz bus operation at 5V operation for 125 ns minimum instruction cycle time
Efficient instruction set, including multiply and divide
16 flexible addressing modes, including stack relative with 16-bit stack pointer
Fully static, low-voltage, low-power design with wait and stop modes

Integrated Second-Generation Flash Memory

In-application reprogrammable
Fast programming, encoding 64B in as fast as 2 ms
Flash programming across the 68HC08’s full operating supply voltage with no extra programming voltage
10K write/erase cycles minimum over temperature
Flexible block protection and security

Integrated EEPROM

Byte-erasable
512 bytes of on-chip EEPROM with security feature

8-bit Analog-to-Digital Converter (ADC)

8 channels
Single conversion in 17 µs

Clock Generation Module with Phase-Lock Loop (PLL)

Programmable clock frequency in integer multiples of external crystal reference
Crystal reference of 1 MHz to 8 MHz
External clock option with or without PLL

System Protection

Watchdog computer operating properly (COP) reset with option to run from dedicated 1 kHz internal clock source
Low-voltage detection with reset or interrupt
Illegal op code and illegal address detection with reset
Flash protection

8 Programmable 16-bit Timer Channels

125 ns resolution at 8 MHz bus
Free-running counter or modulo up-counter
Periodic interrupt timer

Serial Communications Interface (SCI)

UART asynchronous communications system
Flexible baud rate generator
Double-buffered transmit and receive
Optional hardware parity checking and generation

System Protection

Computer Operating Properly (COP) Watchdog Timer
Low-Voltage Inhibit (LVI)

Up to 51 Bidirectional Input/Output (I/O) Lines

10 mA sink/source capability on all I/O pins
15 mA sink capability on eight I/O pins
Keyboard scan with selectable interrupts on five I/O pins
Software programmable pull-ups on I/O pins

MoreLess

Features

High-Performance 68HC08 CPU Core

8 MHz bus operation at 5V operation for 125 ns minimum instruction cycle time
Efficient instruction set, including multiply and divide
16 flexible addressing modes, including stack relative with 16-bit stack pointer
Fully static, low-voltage, low-power design with wait and stop modes

Integrated Second-Generation Flash Memory

In-application reprogrammable
Fast programming, encoding 64B in as fast as 2 ms
Flash programming across the 68HC08’s full operating supply voltage with no extra programming voltage
10K write/erase cycles minimum over temperature
Flexible block protection and security

Integrated EEPROM

Byte-erasable
512 bytes of on-chip EEPROM with security feature

8-bit Analog-to-Digital Converter (ADC)

8 channels
Single conversion in 17 µs

Clock Generation Module with Phase-Lock Loop (PLL)

Programmable clock frequency in integer multiples of external crystal reference
Crystal reference of 1 MHz to 8 MHz
External clock option with or without PLL

System Protection

Watchdog computer operating properly (COP) reset with option to run from dedicated 1 kHz internal clock source
Low-voltage detection with reset or interrupt
Illegal op code and illegal address detection with reset
Flash protection

8 Programmable 16-bit Timer Channels

125 ns resolution at 8 MHz bus
Free-running counter or modulo up-counter
Periodic interrupt timer

Serial Communications Interface (SCI)

UART asynchronous communications system
Flexible baud rate generator
Double-buffered transmit and receive
Optional hardware parity checking and generation

System Protection

Computer Operating Properly (COP) Watchdog Timer
Low-Voltage Inhibit (LVI)

Up to 51 Bidirectional Input/Output (I/O) Lines

10 mA sink/source capability on all I/O pins
15 mA sink capability on eight I/O pins
Keyboard scan with selectable interrupts on five I/O pins
Software programmable pull-ups on I/O pins

Data Sheets

Application Notes

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HC08AB: 8-bit Embedded EEPROM for User Data Storage AB MCUs

Overview

Features

Features