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Freescale Semiconductor MC68HC08KH12 manual MCU Block Diagram

Models: MC68HC08KH12

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Freescale Semiconductor

MC68HC(7)08KH12 —

PTD7/KBD7–

 

 

PORT D

DDRD

 

 

PTD0/KBD0

➄

 

 

 

 

 

 

 

 

 

 

PTE4

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PTC4–PTC0 ➀➁

PORT C

DDRC

PTB7–PTB0 ➀

PORT B

DDRB

PTA7–PTA0

PORT A

DDRA

POWER SUPPLY

AND

VOLTAGE REGULATION

VDD1

VSS1

VDD2

VSS2

REGOUT

Rev.

PTE3/KBE3–

PORT

DDRE

 

OSC2

OSC1

1.1

PTE0/KBE0 ➀➃➅

 

 

PTF7/KBF7–

PORT F

DDRF

PTF0/KBF0 ➀➃

CPU CONTROL

 

ALU

 

 

 

68HC08 CPU

ACCUMULATOR

CPU REGISTERS INDEX REGISTER

CLOCK GENERATION

 

 

 

 

VDDA

 

 

 

 

 

 

 

 

MODULE AND PLL

 

 

 

 

 

 

 

 

 

 

 

 

VSSA

 

 

 

 

 

 

 

 

 

 

CGMXFC

 

 

 

 

 

 

 

 

 

 

 

 

SYSTEM INTEGRATION

 

 

 

 

 

 

RST➂

MODULE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DPLUS4

 

 

DS Port 4

 

 

DMINUS4

 

 

 

 

 

DPLUS3

 

 

 

 

 

DS Port 3

 

 

DMINUS3

 

 

 

 

 

DPLUS2

 

 

 

 

 

DS Port 2

 

 

DMINUS2

 

 

 

 

 

DPLUS1

 

 

 

 

 

DS Port 1

 

 

DMINUS1

 

 

 

 

 

DPLUS0

 

 

 

 

 

US Port

 

 

DMINUS0

 

 

 

 

 

STACK POINTER

PROGRAM COUNTER

CONDITION CODE REGISTER

 

V

1

1

H

I

N

Z

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Embedded USB Function

 

384 bytes RAM

 

12k-bytes ROM/OTPROM

 

 

 

 

 

 

 

 

 

IRQ MODULE

BREAK MODULE

POWER-ON RESET

MODULE

TIMER INTERFACE

MODULE

COP MODULE

IRQ1/VPP➂➃

TCLK/PTE0

TCH0/PTE1 TCH1/PTE2

27

Advance Information

➀PORTS ARE SOFTWARE CONFIGURABLE WITH PULLUP DEVICE IF INPUT PORT

➁SOFTWARE CONFIGURABLE LED DIRECT DRIVE 3mA SOURCE /10mA SINK or STANDARD DRIVE

➂ PIN CONTAINS INTEGRATED PULLUP DEVICE

➃ PIN HAS INTERRUPT CAPABILITY

➄ PIN HAS INTERRUPT AND INTEGRATED PULLUP DEVICE.

➅ PIN HAS OPTICAL COUPLING INTERFACE

Figure 1-1. MCU Block Diagram

MONITOR ROM

240 bytes

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Image 27
Freescale Semiconductor MC68HC08KH12 manual MCU Block Diagram
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MC68HC08KH12 specifications

The Freescale Semiconductor MC68HC08KH12 is a versatile microcontroller that has gained popularity in various embedded systems applications. Part of the HC08 family, this microcontroller combines a robust architecture with comprehensive on-chip features, making it suitable for a wide range of applications ranging from industrial control to consumer electronics.

One of the main features of the MC68HC08KH12 is its 8-bit architecture, which provides an optimal balance between performance and power efficiency. It operates at clock speeds of up to 2 MHz, allowing for efficient execution of instructions while maintaining low power consumption. The microcontroller is designed to operate over a voltage range of 2.7 to 5.5 volts, making it adaptable to various system requirements.

The MC68HC08KH12 is equipped with 1 Kbyte of RAM and 12 Kbytes of ROM, which allows for substantial program and data storage. The on-chip memory helps reduce the need for external components, simplifying the design of embedded systems and enhancing reliability. With a wide range of I/O options, including 26 general-purpose I/O pins, the microcontroller provides flexibility in interfacing with sensors, actuators, and other devices.

In terms of technologies, the MC68HC08KH12 features an advanced instruction set that enhances programming efficiency. It supports basic arithmetic operations, bit manipulation, and control transfer instructions, making it suitable for a variety of computational tasks. The integrated timers, analog-to-digital converters, and serial communication interfaces, including UART, provide the necessary tools for real-time control and data exchange with peripheral devices.

Another characteristic of the MC68HC08KH12 is its low power mode capabilities, which allow it to enter a sleep state during periods of inactivity. This feature is essential in battery-powered applications, where minimizing power consumption is crucial for extending operational life.

Overall, the Freescale Semiconductor MC68HC08KH12 stands out as a reliable microcontroller that combines performance, flexibility, and power efficiency. Its extensive features and technologies enable engineers to design robust embedded systems that meet the demands of modern applications. As a result, the MC68HC08KH12 remains a valuable choice for developers seeking a highly functional yet cost-effective microcontroller solution.