MC68HC908GT16_07 Datasheet, PDF (22/292 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 3.0-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)
• 16 Kbytes of on-chip 100k cycle write/erase capable Flash memory (8 Kbytes on
MC68HC908GT8)
• 512 bytes of on-chip random-access memory (RAM)
• 720 bytes of Flash programming routines ROM
• Serial peripheral interface module (SPI)
• Serial communications interface module (SCI)
• 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
• 8-channel, 8-bit successive approximation analog-to-digital converter (ADC)
• Break module (BRK) to allow single breakpoint setting during in-circuit debugging
• Internal pullups on IRQ and RST to reduce customer system cost
• Up to 36 general-purpose input/output (I/O) pins, including:
– 28 shared-function I/O pins
– Six or eight 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/10-mA source capability on all port pins
• Higher current 20-mA sink/source capability on PTC0–PTC4
• Timebase module 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 32-kHz crystal or internal oscillator
• User selection of having the oscillator enabled or disabled during stop mode
• 8-bit keyboard wakeup port
• Available packages:
– 42-pin shrink dual in-line package (SDIP)
– 44-pin quad flat pack (QFP)
• Specific features of the MC68HC908GT16 in 42-pin SDIP are:
– Port C is only 5 bits: PTC0–PTC4
– Port D is 8 bits: PTD0–PTD7; dual 2-channel TIM modules
• Specific features of the MC68HC908GT16 in 44-pin QFP are:
– Port C is 7 bits: PTC0–PTC6
– Port D is 8 bits: PTD0–PTD7; dual 2-channel TIM modules
MC68HC908GT16 • MC68HC908GT8 • MC68HC08GT16 Data Sheet, Rev. 5.0
22
Freescale Semiconductor