1.5.8 Port A Input/Output (I/O) Pins (PTA7–PTA0)

PTA7–PTA0 are general-purpose bidirectional I/O port pins. (See Section 12. I/O Ports.) Each pin contains a software configurable pull- up device when the pin is configured as an input. (See 12.9 Port Options.)

1.5.9 Port B I/O Pins (PTB7–PTB0)

PTB7–PTB0 are general-purpose bidirectional I/O port pins. (See Section 12. I/O Ports.) Each pin contains a software configurable pull- up device when the pin is configured as an input. (See 12.9 Port Options.)

1.5.10 Port C I/O Pins (PTC4–PTC0)

PTC4–PTC0 are general-purpose bidirectional I/O port pins. (See Section 12. I/O Ports.) Port C pins are software configurable to be LED Direct Drive ports. Each pin contains a software configurable pull-up device when the pin is configured as an input. (See 12.9 Port Options.)

1.5.11 Port D I/O Pins (PTD7/KBD7–PTD0/KBD0)

PTD7/KBD7–PTD0/KBD0 are general-purpose bidirectional I/O port pins. (See Section 12. I/O Ports.) Any or all of the port D pins can be programmed to serve as external interrupt pins. (See Section 15. Keyboard Interrupt Module (KBI).)

1.5.12Port E I/O Pins (PTE4, PTE3/KBE3, PTE2/KBE2/TCH1, PTE1/KBE1/TCH0, PTE0/KBE0/TCLK)

Port-E is a 5-bit special function port which shares three of its pins with the Timer Interface Module and four of its pins with Keyboard Interrupt Module (see Section 12. I/O Ports, Section 15. Keyboard Interrupt

Module (KBI) and Section 11. Timer Interface Module (TIM)). In

addition, PTE3-PTE0 has built-in optical coupling interface for optical

mouse application. (See Section 12. I/O Ports.)

MC68HC(7)08KH12 — Rev. 1.1

Advance Information

 

 

Freescale Semiconductor

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Freescale Semiconductor MC68HC08KH12 manual Module KBI and . Timer Interface Module TIM
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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.
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