MC68HC908GZ8 FREESCALE [Freescale Semiconductor, Inc], MC68HC908GZ8 Datasheet - Page 20

• Manufacturer Part Number: MC68HC908GZ8
• Description: M68HC08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

General Description
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System protection features:
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Low-power design; fully static with stop and wait modes
Standard low-power modes of operation:
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Master reset pin and power-on reset (POR)
On-chip FLASH memory:
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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:
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LIN specific enhanced features:
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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:
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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:
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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
Wait mode
Stop mode
MC68HC908GZ16 — 16 Kbytes
MC68HC908GZ8 — 8 Kbytes
Measurement of received bit timings for baud rate recovery without use of external timer
Bitwise arbitration for arbitrated UART communications
Generation of LIN 1.2 break symbols without extra software steps on each message
Break detection filtering to prevent false interrupts
28 shared-function I/O pins
Up to nine dedicated I/O pins, depending on package choice
32-pin quad flat pack (LQFP)
48-pin quad flat pack (LQFP)
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
Freescale Semiconductor