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MC68HC908GR16A Datasheet(PDF) 20 Page - Freescale Semiconductor, Inc

No. de Pieza. MC68HC908GR16A
Descripción  M68HC08 Microcontrollers
Descarga  270 Pages
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Fabricante  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
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MC68HC908GR16A Datasheet(HTML) 20 Page - Freescale Semiconductor, Inc

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General Description
MC68HC908GR16A Data Sheet, Rev. 1.0
20
Freescale Semiconductor
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
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 MC68HC908GR16A 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 MC68HC908GR16A 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


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