The MC68HC908JL16 is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs). 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.
Features include:;High-performance M68HC08 architecture;Fully upward-compatible object code with M6805, M146805, and M68HC05 Families;Low-power design; fully static with stop and wait modes;Maximum internal bus frequency:–8-MHz at 5-V operating voltage–4-MHz at 3-V operating voltage;Oscillator options:–Crystal or resonator–RC oscillator;16,384 bytes user program FLASH memory with security(1) ;512 bytes of on-chip random-access memory (RAM);Two 16-bit, 2-channel timer interface modules (TIM1 and TIM2) with selectable input capture, output compare, and pulse-width modulation (PWM) capability on each channel; external clock input option on TIM2;13-channel, 10-bit analog-to-digital converter with internal bandgap reference channel (ADC10);Serial communications interface module (SCI);Multi-master IIC module (MMIIC);Up to 26 general-purpose input/output (I/O) ports:–8 keyboard interrupt with internal pull up–11 LED drivers (sink)–2 × 25 mA open-drain I/O with pull up–Inputs contain hysteresis buffer for improved noise immunity ;Resident routines for in-circuit programming and EEPROM emulation;System protection features:–Optional computer operating properly (COP) reset, driven by internal RC oscillator–Optional low-voltage detection with reset and selectable trip points for 3-V and 5-V operation–Illegal opcode detection with reset–Illegal address detection with reset.Master reset pin with internal pull-up and power-on reset;IRQ with schmitt-trigger input and programmable pull up;The MC68HC908JL16 is available in the following packages:–28-pin plastic dual in-line package (PDIP)–28-pin small outline integrated package (SOIC)–32-pin shrink dual in-line package (SDIP)–32-pin low-profile quad flat pack (LQFP);Specific features in 28-pin packages are:–23 general-purpose I/Os only–7 keyboard interrupt with internal pull up–10 light-emitting diode (LED) drivers (sink)–12-channel ADC–Timer I/O pins on TIM1 only.
Features of the CPU08 include the following:;Enhanced HC05 programming model;Extensive loop control functions;16 addressing modes (eight more than the HC05);16-bit index register and stack pointer;Memory-to-memory data transfers;Fast 8 × 8 multiply instruction;Fast 16/8 divide instruction;Binary-coded decimal (BCD) instructions;Optimization for controller applications;Efficient C language support