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| 型號(hào)： | LPC2925FBD100 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | ARM9 microcontroller with CAN, LIN, and USB |
| 中文描述： | 32-BIT, FLASH, 125 MHz, RISC MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT407-1, LQFP-100 |
| 文件頁(yè)數(shù)： | 74/84頁(yè) |
| 文件大?。?/td> | 551K |
| 代理商： | LPC2925FBD100 |
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LPC2921_23_25_3
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 14 April 2010
74 of 84
NXP Semiconductors
LPC2921/2923/2925
ARM9 microcontroller with CAN, LIN, and USB
10.4 XIN_OSC input
The input voltage to the on-chip oscillators is limited to 1.8 V. If the oscillator is driven by a
clock in slave mode, it is recommended that the input be coupled through a capacitor with
C
i
= 100 pF. To limit the input voltage to the specified range, choose an additional
capacitor to ground C
g
which attenuates the input voltage by a factor C
i
/(C
i
+ C
g
). In slave
mode, a minimum of 200 mV (RMS) is needed. For more details see the
LPC29xx User
manual UM10316
.
10.5 XIN_OSC Printed Circuit Board (PCB) layout guidelines
The crystal should be connected on the PCB as close as possible to the oscillator input
and output pins of the chip. Take care that the load capacitors C
x1
and C
x2
, and C
x3
in
case of third overtone crystal usage, have a common ground plane. The external
components must also be connected to the ground plain. Loops must be made as small
as possible, in order to keep the noise coupled in via the PCB as small as possible. Also
parasitics should stay as small as possible. Values of C
x1
and C
x2
should be chosen
smaller accordingly to the increase in parasitics of the PCB layout.
Fig 31. Slave mode operation of the on-chip oscillator
LPC29xx
XIN_OSC
Ci
100 pF
Cg
002aae730
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| LPC2925FBD100,551 | 功能描述:ARM微控制器 - MCU IC ARM9 MCU FLASH 512KB RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| LPC2926 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
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| LPC2926FBD144,557 | 制造商:NXP Semiconductors 功能描述:LPC2926FBD144/LQFP144/TRAYDPM/ - Trays 制造商:NXP Semiconductors 功能描述:IC MCU ARM9 256KB FLASH 144LQFP |
| LPC2927 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:ARM9 microcontroller with CAN, LIN, and USB |
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