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Specifications
SKU: 1824506
Microcontrollers
| Parameter | Description | Value | Unit |
|---|---|---|---|
| Device | Device Type | MC68HC908JK3ECPE | - |
| Package | Package Type | 20-Pin PDIP (Plastic Dual In-Line Package) | - |
| Operating Voltage | Supply Voltage Range | 3.0 to 5.5 | V |
| Operating Temperature | Operating Temperature Range | -40 to +85 | °C |
| Clock Frequency | Maximum Clock Frequency | 8 | MHz |
| Flash Memory | Flash Memory Size | 4 | KB |
| RAM | RAM Size | 256 | B |
| EEPROM | EEPROM Size | 128 | B |
| I/O Ports | Number of I/O Ports | 16 | - |
| Timers | Number of Timers | 2 | - |
| Analog-to-Digital Converter (ADC) | ADC Channels | 8 | - |
| Serial Communication Interfaces (SCI) | Number of SCI Modules | 1 | - |
| SPI Interface | SPI Support | Yes | - |
| Watchdog Timer (WDT) | Watchdog Timer Support | Yes | - |
| Low-Voltage Detection (LVD) | Low-Voltage Detection Support | Yes | - |
| Power-On Reset (POR) | Power-On Reset Support | Yes | - |
| Brown-Out Reset (BOR) | Brown-Out Reset Support | Yes | - |
Instructions for Using the MC68HC908JK3ECPE
Power Supply:
- Ensure the supply voltage is within the range of 3.0V to 5.5V.
- Connect the Vcc pin to the power supply and the Vss pin to ground.
Clock Configuration:
- The device supports an external crystal or ceramic resonator for clock generation.
- For internal RC oscillator, configure the appropriate fuses.
Programming:
- Use a compatible programmer to write code to the flash memory.
- Ensure the programming voltage (Vpp) is applied correctly if required by the programmer.
I/O Configuration:
- Configure the I/O ports as inputs or outputs using the appropriate register settings.
- Use pull-up or pull-down resistors as needed for input pins.
Timer Setup:
- Initialize the timers using the timer control registers.
- Set the prescaler and compare values as needed for your application.
ADC Usage:
- Enable the ADC module and configure the channels to be used.
- Start conversions and read the results from the ADC data registers.
Serial Communication:
- Initialize the SCI module for serial communication.
- Configure baud rate, data bits, stop bits, and parity as required.
SPI Interface:
- Initialize the SPI module for master or slave mode.
- Configure the clock polarity, phase, and data order.
Watchdog Timer:
- Enable the watchdog timer to prevent system lockup.
- Service the watchdog timer periodically to prevent reset.
Low-Voltage Detection:
- Enable the low-voltage detection feature to monitor the supply voltage.
- Configure the threshold and response actions.
Reset Handling:
- Ensure proper handling of power-on reset (POR) and brown-out reset (BOR).
- Implement reset routines to initialize the device correctly after a reset event.
Debugging:
- Use the on-chip debugging features, if available, to trace and debug your code.
- Monitor the status of various modules and registers during development.
For detailed register maps and specific configuration instructions, refer to the MC68HC908JK3ECPE datasheet and user manual provided by the manufacturer.
(For reference only)Inquiry - MC68HC908JK3ECPE
