S912XEP768J5MAGR Freescale Semiconductor, S912XEP768J5MAGR Datasheet - Page 1263
S912XEP768J5MAGR
Manufacturer Part Number
S912XEP768J5MAGR
Description
16-bit Microcontrollers - MCU 16-bit 768K Flash
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XEP768J5MAGR
Rohs
yes
Core
HCS12X
Processor Series
MC9S12
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
768 KB
Data Ram Size
48 KB
On-chip Adc
Yes
Operating Supply Voltage
3.3 V to 5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-144
Mounting Style
SMD/SMT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S912XEP768J5MAGR
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Appendix C
PCB Layout Guidelines
The PCB must be carefully laid out to ensure proper operation of the voltage regulator as well as of the
MCU itself. The following rules must be observed:
Example layouts are illustrated on the following pages.
Freescale Semiconductor
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•
•
•
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Every supply pair must be decoupled by a ceramic capacitor connected as near as possible to the
corresponding pins .
Central point of the ground star should be the VSS3 pin.
Use low ohmic low inductance connections between VSS1, VSS2 and VSS3.
VSSPLL must be directly connected to VSS3.
Keep traces of VSSPLL, EXTAL, and XTAL as short as possible and occupied board area for C7,
C8, and Q1 as small as possible.
Do not place other signals or supplies underneath area occupied by C7, C8, and Q1 and the
connection area to the MCU.
Central power input should be fed in at the VDDA/VSSA pins.
MC9S12XE-Family Reference Manual Rev. 1.25
Appendix C PCB Layout Guidelines
1263
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