Описание
The MC68HC908LK24 is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs). The M68HC08 Family is based on the customer-specified integrated circuit (CSIC) design strategy. 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.
- High-performance M68HC08 architecture
- Fully upward-compatible object code with M6805, M146805, and M68HC05 Families
- 8-MHz at 5V operating voltage
- 4-MHz at 3.3V operating voltage
- 32.768kHz crystal oscillator clock input with 32MHz internal PLL
- Optional continuous crystal oscillator operation in stop mode
- 24K-bytes user program FLASH memory with security1 feature
- 768 bytes of on-chip RAM
- Up to 48 general-purpose input/output (I/O) pins:
- High current 15mA sink capability on 30 pins
- Two 16-bit, 2-channel timer interface modules (TIM1 and TIM2) with selectable input capture, output compare, PWM capability on each channel, and external clock input option (T1CLK and T2CLK)
- Real time clock (RTC) with:
- Clock, calendar, alarm, and chronograph functions
- Selectable periodic interrupt requests for seconds, minutes, hours, days, 2-Hz, 4-Hz, 8-Hz, 16-Hz, and 128-Hz
- Temperature drift compensation by user software and external temperature sensor with temperature drift profile from crystal vendor
- Serial communications interface module (SCI) with infrared (IR) encoder/decoder
- Inter-IC Bus interface module (IIC)
- Serial peripheral interface module (SPI)
- IRQ external interrupt pin with integrated pullup
- 8-bit keyboard wakeup port with programmable pullup
- 4/3 backplanes and static with maximum 32/33 frontplanes liquid crystal display (LCD) driver
- 6-channel, 10-bit successive approximation analog-to-digital converter (ADC)
- Resident routines for in-circuit programming and EEPROM emulation
- Low-power design (fully static with stop and wait modes)
- Master reset pin (with integrated pullup) and power-on reset
- Spike filter protection for EMC performance enhancement
- System protection features
- Optional computer operating properly (COP) reset, driven by internal RC oscillator
- Low-voltage detection with optional reset or interrupt
- Illegal opcode detection with reset
- Illegal address detection with reset
- 80-pin quad flat pack (QFP), 80-pin low-profile quad flat pack (LQFP), 64-pin quad flat pack (QFP), and 64-pin low-profile quad flat pack (LQFP)
- Specific features of the MC68HC908LJ24 in 64-pin packages are:
- 40 general-purpose I/Os only
- High current 15-mA sink capability on 22 pins
- 4/3 backplanes and static with maximum 26 or 27 frontplanes LCD driver
