Описание
The MC68HLC908QY4 is a member of the low-cost, high-performance M68HC08 Family of 8-bit microcontroller units (MCUs). The M68HC08 Family is a Complex Instruction Set Computer (CISC) with a Von Neumann architecture. 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 CPU core
- Fully upward-compatible object code with M68HC05 Family
- Operating voltage range of 2.2 V to 3.6 V
- 2-MHz internal bus operation
- Trimmable internal oscillator
- 1.0 MHz internal bus operation
- 8-bit trim capability allows 0.4% accuracy(1)
- ± 25% untrimmed
- Auto wakeup from STOP capability
- Configuration (CONFIG) register for MCU configuration options, including:
- Low-voltage inhibit (LVI) trip point
- In-system FLASH programming
- FLASH security(2)
- On-chip in-application programmable FLASH memory (with internal program/erase voltage generation)
- MC68HLC908QY4 is 4096 bytes
- 128 bytes of on-chip random-access memory (RAM)
- 2-channel, 16-bit timer interface module (TIM)
- 4-channel, 8-bit analog-to-digital converter (ADC) on MC68HLC908QY4
- 5 or 13 bidirectional input/output (I/O) lines and one input only:
- Six shared with keyboard interrupt function and ADC
- Two shared with timer channels
- One shared with external interrupt (IRQ)
- Eight extra I/O lines on 16-pin package only
- High current sink/source capability on all port pins
- Selectable pullups on all ports, selectable on an individual bit basis
- Three-state ability on all port pins
- 6-bit keyboard interrupt with wakeup feature (KBI)
- Low-voltage inhibit (LVI) module features:
- Software selectable trip point in CONFIG register
- System protection features:
- Computer operating properly (COP) watchdog
- Low-voltage detection with optional reset
- Illegal opcode detection with reset
- Illegal address detection with reset
- External asynchronous interrupt pin with internal pullup (IRQ) shared with general-purpose input pin
- Master asynchronous reset pin (RST) shared with general-purpose input/output (I/O) pin
- Power-on reset
- Internal pullups on IRQ and RST to reduce external components
- Memory mapped I/O registers
- Power saving stop and wait modes
- MC68HLC908QY4 is available in these packages:
- 16-pin plastic dual in-line package (PDIP)
- 16-pin small outline integrated circuit (SOIC) package
- 16-pin thin shrink small outline package (TSSOP)
