MC68HC705J1ACDW Freescale Semiconductor, MC68HC705J1ACDW Datasheet - Page 69

IC MCU 4MHZ 1.2K OTP 20-SOIC

MC68HC705J1ACDW

Manufacturer Part Number
MC68HC705J1ACDW
Description
IC MCU 4MHZ 1.2K OTP 20-SOIC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705J1ACDW

Core Processor
HC05
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
14
Program Memory Size
1.2KB (1.2K x 8)
Program Memory Type
OTP
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Connectivity
-

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4.1 Contents
4.2 Introduction
MC68HC705J1A — Rev. 4.0
Technical Data — MC68HC705J1A
4.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.4
4.4.1
4.4.2
4.4.3
4.4.3.1
4.4.3.2
4.4.4
Reset initializes the microcontroller unit (MCU) by returning the program
counter to a known address and by forcing control and status bits to
known states.
Interrupts temporarily change the sequence of program execution to
respond to events that occur during processing.
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Resets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Power-On Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
External Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
COP Watchdog Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Illegal Address Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Software Interrupt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
External Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Timer Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Interrupt Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Real-Time Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Timer Overflow Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . 76
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Resets and Interrupts
Section 4. Resets and Interrupts
Technical Data

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