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M68ICS08GR датащи(PDF) 31 Page - Freescale Semiconductor, Inc

номер детали M68ICS08GR
подробное описание детали  M68HC08 Microcontrollers
PDF  408 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

M68ICS08GR датащи(HTML) 31 Page - Freescale Semiconductor, Inc

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General Description
Pin Functions
MC68HC908GR8 — Rev 4.0
Technical Data
MOTOROLA
General Description
31
Figure 1-3. DIP And SOIC Pin Assignments
1.6 Pin Functions
Descriptions of the pin functions are provided here.
1.6.1 Power Supply Pins (VDD and VSS)
VDD and VSS are the power supply and ground pins. The MCU operates
from a single power supply.
Fast signal transitions on MCU pins place high, short-duration current
demands on the power supply. To prevent noise problems, take special
care to provide power supply bypassing at the MCU as Figure 1-4
shows. Place the C1 bypass capacitor as close to the MCU as possible.
Use a high-frequency-response ceramic capacitor for C1. C2 is an
optional bulk current bypass capacitor for use in applications that require
the port pins to source high current levels.
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CGMXFC
OSC2
OSC1
RST
PTE0/TxD
PTE1/RxD
IRQ
PTD0/SS
PTD1/MISO
PTD2/MOSI
PTD3/SPSCK
V
SS
V
DD
PTD4/T1CH0
VSSA
VDDA
PTA3/KBD3
PTA2/KBD2
PTA1/KBD1
PTA0/KBD0
VSSAD/VREFL
VDDAD/VREFH
PTB3/AD3
PTB2/AD2
PTB1/AD1
PTB0/AD0
PTD6/T2CH0
PTD5/T1CH1
NOTE: Ports PTB4, PTB5, PTC0, and PTC1 are available only with the QFP.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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