mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 35

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mc68hc908sr12

Manufacturer Part Number
mc68hc908sr12
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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1.1 Contents
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Data Sheet — MC68HC908SR12•MC68HC08SR12
1.2
1.3
1.4
1.5
1.6
1.6.1
1.6.2
1.6.3
1.6.4
1.6.5
1.6.6
1.6.7
1.6.8
1.6.9
1.6.10
1.6.11
1.6.12
1.6.13
1.6.14
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Power Supply Pins (V
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . . 42
External Reset Pin (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
External Interrupt Pin (IRQ1) . . . . . . . . . . . . . . . . . . . . . . . .43
Analog Power Supply Pin (V
Analog Ground Pin (V
ADC Voltage Low Reference Pin (V
ADC Voltage High Reference Pin (V
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . . 43
Analog Input Pins (OPIN1/ATD0, OPIN2/ATD1, V
Port A Input/Output (I/O) Pins (PTA7–PTA0) . . . . . . . . . . . . 44
Port B I/O Pins (PTB6–PTB0) . . . . . . . . . . . . . . . . . . . . . . . 44
Port C I/O Pins (PTC7–PTC0) . . . . . . . . . . . . . . . . . . . . . . . 44
Port D I/O Pins (PTD7/KBI7–PTD0/KBI0) . . . . . . . . . . . . . . 44
General Description
Section 1. General Description
DD
SSA
and V
) . . . . . . . . . . . . . . . . . . . . . . . . . . 43
DDA
SS
) . . . . . . . . . . . . . . . . . . . . .43
) . . . . . . . . . . . . . . . . . . . . 42
REFL
REFH
) . . . . . . . . . . . . . . 43
). . . . . . . . . . . . . . 43
SSAM
Data Sheet
) . . . 44
35

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