MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 5
MC68HC908AB32
Manufacturer Part Number
MC68HC908AB32
Description
HCMOS Microcontroller Unit
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908AB32.pdf
(392 pages)
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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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