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MC68HC908GZ16 Datasheet, PDF (22/314 Pages) Motorola, Inc – Microcontrollers | |||
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General Description
⢠System protection features:
â Optional computer operating properly (COP) reset
â Low-voltage detection with optional reset and selectable trip points for 3.3-V and 5.0-V
operation
â Illegal opcode detection with reset
â Illegal address detection with reset
⢠Low-power design; fully static with stop and wait modes
⢠Standard low-power modes of operation:
â Wait mode
â Stop mode
⢠Master reset pin and power-on reset (POR)
⢠On-chip FLASH memory:
â MC68HC908GZ16 â 16 Kbytes
â MC68HC908GZ8 â 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:
â Measurement of received bit timings for baud rate recovery without use of external timer
â Bitwise arbitration for arbitrated UART communications
⢠LIN specific enhanced features:
â Generation of LIN 1.2 break symbols without extra software steps on each message
â 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:
â 28 shared-function I/O pins
â 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 PTC0âPTC4
⢠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:
â 32-pin quad flat pack (LQFP)
â 48-pin quad flat pack (LQFP)
MC68HC908GZ16 ⢠MC68HC908GZ8 Data Sheet, Rev. 1
22
Freescale Semiconductor
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