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Lifecycle Status Indicator

MC68908GZ8MFAE Lifecycle Status Indicator

Product Attributes

Overview

The MC68HC908GZ16 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

Standard 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 1-MHz to 8-MHz crystals

• MSCAN08 (implementing 2.0b protocol as defined in BOSCH specification dated September 1991)

• 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)

• On-chip FLASH memory:

– MC68HC908GZ16 — 16 Kbytes

– MC68HC908GZ8 — 8 Kbytes

• 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

• Fine adjust baud rate prescalers for precise control of baud rate

• Arbiter module:

– Measurement of received bit timings for baud rate recovery without use of external timer

– Bitwise arbitration for arbitrated UART communications

• 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, 2-channel timer interface modules (TIM1 and TIM2) with selectable input capture, output compare, and pulse-width modulation (PWM) capability on each channel. One 2-channel timer and one 1-channel timer on the 32-pin package.

• 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

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

• Available packages:

– 32-pin quad flat pack (LQFP)

– 48-pin quad flat pack (LQFP)

• Specific features of the MC68HC908GZ16 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; shared with MSCAN08 module

– 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 MC68HC908GZ16 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; shared with MSCAN08 module

– 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

Features of the CPU08

• 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

Advantages and Disadvantages

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Compliance

ECCN / UNSPSC

Documents & Media

Product Manufacturer

NXP Semiconductor enables secure connections and infrastructure for a smarter world, advancing solutions that make lives easier, better and safer. As the world leader in secure connectivity solutions for embedded applications, NXP is driving innovation in the secure connected vehicle, end-to-end security & privacy and smart connected solutions markets. Built on more than 60 years of combined experience and expertise, the company has 45,000 employees in more than 35 countries.

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