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參數資料
型號: MC9S12DJ128BCFU
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: MC9S12DT128B
中文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 14 MM, 2.20 MM HEIGHT, 0.65 MM PITCH, QFP-80
文件頁數: 78/124頁
文件大小: 577K
代理商: MC9S12DJ128BCFU
MC9S12DT128B Device User Guide — V01.07
78
Section 22 Printed Circuit Board Layout Proposal
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:
Every supply pair must be decoupled by a ceramic capacitor connected as near as possible to the
corresponding pins (C1 –C6).
Central point of the ground star should be the VSSR pin.
Use low ohmic low inductance connections between VSS1, VSS2 and VSSR.
VSSPLL must be directly connected to VSSR.
Keep traces of VSSPLL, EXTAL and XTAL as short as possible and occupied board area for C7,
C8, C11 and Q1 as small as possible.
Do not place other signals or supplies underneath area occupied by C7, C8, C10 and Q1 and the
connection area to the MCU.
Central power input should be fed in at the VDDA/VSSA pins.
Table 22-1 Suggested External Component Values
Component
Purpose
Type
Value
C1
VDD1 filter cap
ceramic X7R
100 … 220nF
C2
VDD2 filter cap
ceramic X7R
100 … 220nF
C3
VDDA filter cap
ceramic X7R
100nF
C4
VDDR filter cap
X7R/tantalum
>= 100nF
C5
VDDPLL filter cap
ceramic X7R
100nF
C6
VDDX filter cap
X7R/tantalum
>= 100nF
C7
OSC load cap
C8
OSC load cap
C9 / C
S
PLL loop filter cap
See PLL specification chapter
C10 / C
P
PLL loop filter cap
C11 / C
DC
DC cutoff cap
Colpitts mode only, if recommended by
quartz manufacturer
R1 / R
PLL loop filter res
See PLL Specification chapter
R2 / R
B
Pierce mode only
R3 / R
S
Q1
Quartz
相關PDF資料
PDF描述
MC9S12DJ128BCPV MC9S12DT128B
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MC9S12DJ128BMPV MC9S12DT128B
MC9S12DJ128BVFU MC9S12DT128B
MC9S12DJ128BVPV MC9S12DT128B
相關代理商/技術參數
參數描述
MC9S12DJ128BCPV 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC9S12DJ128BMPV 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC9S12DJ128BVPV 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Freescale Semiconductor 功能描述:
MC9S12DJ128CFU 制造商:Rochester Electronics LLC 功能描述:128K FLASH HCS12 MCU - Bulk
MC9S12DJ128CFUE 功能描述:16位微控制器 - MCU 128K FLASH HCS12 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
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