MC68908GZ8MFJE Datasheet, PDF (20/314 Pages) Freescale Semiconductor, Inc – Microcontrollers

General Description
• 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)
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
20
Freescale Semiconductor