MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 5

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MC68HC908AB32

Manufacturer Part Number
MC68HC908AB32
Description
HCMOS Microcontroller Unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet

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MC68HC908AB32
MOTOROLA
Technical Data — MC68HC908AB32
Rev. 1.0
1.1
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
1.6.15
1.6.16
1.6.17
1.6.18
1.7
1.8
1.9
Freescale Semiconductor, Inc.
For More Information On This Product,
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
I/O Pin Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Signal Name Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Clock Source Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Power Supply Pins (V
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . . 35
External Reset Pin (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
External Interrupt Pin (IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . 35
Analog Power Supply Pin (V
Analog Ground Pin (V
Analog Ground Pin (A
ADC Voltage Reference Pin (V
Analog Supply Pin (V
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . . 36
Port A Input/Output (I/O) Pins (PTA7–PTA0) . . . . . . . . . . . . 36
Port B I/O Pins (PTB7/ATD7–PTB0/ATD0) . . . . . . . . . . . . . 36
Port C I/O Pins (PTC5–PTC0) . . . . . . . . . . . . . . . . . . . . . . . 36
Port D I/O Pins (PTD7–PTD0) . . . . . . . . . . . . . . . . . . . . . . . 37
Port E I/O Pins (PTE7/SPSCK–PTE0/TxD) . . . . . . . . . . . . . 37
Port F I/O Pins (PTF7–PTF0/TACH2) . . . . . . . . . . . . . . . . . 37
Port G I/O Pins (PTG2/KBD2–PTG0/KBD0) . . . . . . . . . . . . 37
Port H I/O Pins (PTH1/KBD4–PTH0/KBD3). . . . . . . . . . . . . 37
Go to: www.freescale.com
Table of Contents
Section 1. General Description
DDAREF
DD
SSA
VSS
and V
) . . . . . . . . . . . . . . . . . . . . . . . . . . 35
/V
REFL
DDA
) . . . . . . . . . . . . . . . . . . . . . . . 36
REFH
SS
Table of Contents
) . . . . . . . . . . . . . . . . . . . . . 35
). . . . . . . . . . . . . . . . . . . . . 35
) . . . . . . . . . . . . . . . . . . . . 34
) . . . . . . . . . . . . . . . . . . 36
Technical Data
5

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