MC68908GR16CFJE Datasheet PDF – IC MCU FLASH 32LQFP Freescale Semiconductor - NXP

Product Overview

MC68908GR16CFJE Images are for reference only:

Product Specifications

MC68908GR16CFJE Datasheet PDF Download: 

MCU Block Diagram

MCU Block Diagram

Pin Assignments

32-Pin LQFP Pin Assignments

Description

The MC68HC908GR16 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

• High-performance M68HC08 architecture optimized for C-compilers

• Fully upward-compatible object code with M6805, M146805, and M68HC05 Families

• 8-MHz internal bus frequency

• Clock generation module supporting 32-kHz to 100-kHz crystals

• FLASH program memory security(1)

• On-chip programming firmware for use with host personal computer which does not require high voltage for entry

• In-system programming (ISP)

• System protection features:

– Optional computer operating properly (COP) reset

– Low-voltage detection with optional reset and selectable trip points for 3.3-V and 5.0-V operation

– Illegal opcode detection with reset

– Illegal address detection with reset

• Low-power design; fully static with stop and wait modes

• Standard low-power modes of operation:

– Wait mode

– Stop mode

• Master reset pin and power-on reset (POR)

• 16 Kbytes of on-chip 100k cycle write/erase capable FLASH memory

• 1 Kbyte of on-chip random-access memory (RAM)

• 406 bytes of FLASH programming routines read-only memory (ROM)

• Serial peripheral interface (SPI) module

• Enhanced serial communications interface (ESCI) module

• LIN specific enhanced features:

– Generation of LIN 1.2 break symbols without extra software steps on each message

– Break detection filtering to prevent false interrupts

• Two 16-bit timer interface modules (2-channel TIM1 and 2-channel TIM2) with selectable input capture, output compare, and pulse-width modulation (PWM) capability on each channel

• Up to 8-channel, 10-bit successive approximation analog-to-digital converter (ADC) depending on package choice

• BREAK (BRK) module to allow single breakpoint setting during in-circuit debugging

• Internal pullups on IRQ and RST to reduce customer system cost

• Up to 37 general-purpose input/output (I/O) pins, including:

– 28 shared-function I/O pins

– Up to nine dedicated I/O pins, depending on package choice

• Selectable pullups on inputs only on ports A, C, and D. Selection is on an individual port bit basis.

  During output mode, pullups are disengaged.

• High current 10-mA sink/source capability on all port pins

• Higher current 20-mA sink/source capability on PTC0–PTC4

• Timebase module (TBM) with clock prescaler circuitry for eight user selectable periodic real-time interrupts with optional active clock source during stop mode for periodic wakeup from stop using an external crystal

• User selection of having the oscillator enabled or disabled during stop mode

• Up to 8-bit keyboard wakeup port depending on package choice

• 5 mA maximum current injection on all port pins to maintain input protection

• Available packages:

– 32-pin LQFP

– 48-pin low-profile quad flag pack (LQFP)

• Specific features of the MC68HC908GR16 in 32-pin LQFP are:

– Port A is only 4 bits: PTA0–PTA3; 4-pin keyboard interrupt (KBI) module

– Port B is only 6 bits: PTB0–PTB5; 6-channel ADC module

– Port C is only 2 bits: PTC0–PTC1

– Port D is only 7 bits: PTD0–PTD6; shared with SPI, TIM1, and TIM2 modules

– Port E is only 2 bits: PTE0–PTE1; shared with ESCI module

• Specific features of the MC68HC908GR16 in 48-pin LQFP are:

– Port A is 8 bits: PTA0–PTA7; 8-pin KBI module

– Port B is 8 bits: PTB0–PTB7; 8-channel ADC module

– Port C is only 7 bits: PTC0–PTC6

– Port D is 8 bits: PTD0–PTD7; shared with SPI, TIM1, and TIM2 modules

– Port E is only 6 bits: PTE0–PTE5; shared with ESCI module  

Other data sheets within the file:

Datasheet
MC68908GR16CFJE Datasheet
Application Notes
Arithmetic Waveform Synthesis with the HC05/08 MCUs
Designing for Electromagnetic Compatibility (EMC) with HCMOS Microcontrollers
Designing for Electromagnetic Compatibility with Single-Chip Microcontrollers
Hamming Error Control Coding Techniques with the HC08 MCU
HC05 to HC08 Optimization
HC08 SCI Operation with Various Input Clocks
Liquid Level Control Using a Pressure Sensor
M68HC08 Integer Math Routines
Noise Reduction Techniques for Microcontroller-Based Systems
Resetting Microcontrollers During Power Transitions
Servo Motor Control Application on a Local Interconnect Network (LIN)
System Design and Layout Techniques for Noise Reduction in MCU-Based Systems
Images
Functional Block Diagram - Large
Mechanical Outline Drawing
Product Catalogs
Product Summary: The Perfect 8-bit Compilation
Technical Resources
ADC Analog-to-Digital Converter Reference Manual
CodeWarrior Development Studio for HC(S)08
CodeWarrior Development Studio Quick Start for Windows
CPU08 Central Processor Unit Reference Manual
Getting Started with Freescale Development Tools
Interrupt Handling Considerations When Modifying EEPROM on HC08 Microcontrollers
Software Files for AN1219
Software Files for AN1221
Software Files for AN1222
Software Files for AN1820
Software Files for AN2120
Software Files for AN2262
Software Files for AN2396
Software Files for AN2884
Software Files for AN2984
Software Files for Application Note AN2637
Software to Accompany AN2874
Techniques to Protect MCU Applications Against Malfunction Due to Code Run-Away
TIM08 Timer Interface Module Reference Manual
TOF Considerations When Measuring a Long Input Capture Event
Use of OSC2/XTAL as a Clock Output on Motorola Microcontrollers
Test/Quality Data
Material Composition
RoHS Certificate of Analysis
Statement on EU REACH Provisions