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參數(shù)資料
| 型號： | LPC2142FBD64 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 數(shù)學處理器 |
| 英文描述： | Single-chip 16-bit-32-bit microcontrollers; up to 512 kB flash with ISP-IAP, USB 2.0 full-speed device, 10-bit ADC and DAC |
| 封裝： | LPC2141FBD64<SOT314-2 (LQFP64)|<<http://www.nxp.com/packages/SOT314-2.html<1<Always Pb-free,;LPC2142FBD64<SOT314-2 (LQFP64)|<<http://www.nxp.com/packages/SOT314-2.html< |
| 文件頁數(shù)： | 39/45頁 |
| 文件大?。?/td> | 391K |
| 代理商： | LPC2142FBD64 |
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LPC2141_42_44_46_48
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 12 August 2011
39 of 45
NXP Semiconductors
LPC2141/42/44/46/48
Single-chip 16-bit/32-bit microcontrollers
that belong to a specific C
L
. The value of external capacitances C
X1
and C
X2
specified in
this table are calculated from the internal parasitic capacitances and the C
L
. Parasitics
from PCB and package are not taken into account.
Table 12.
Crystal load capacitance
C
L
11 pF
13 pF
15 pF
12.4 XTAL and RTCX 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
, 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 plane. 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.
Recommended values for the RTC external 32 kHz oscillator C
X1
/C
X2
components
Maximum crystal series
resistance R
S
< 100 k
< 100 k
< 100 k
External load capacitors C
X1
/C
X2
18 pF, 18 pF
22 pF, 22 pF
27 pF, 27 pF
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2142FBD64,151 | 功能描述:ARM微控制器 - MCU ARM7 64KF/16KR/USB 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 最大時鐘頻率:72 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| LPC2144 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit microcontrollers; up to 512 kB flash with ISP/IAP, USB 2.0 full-speed device, 10-bit ADC and DAC |
| LPC2144FBD64 | 制造商:NXP Semiconductors 功能描述:MCU 32BIT ARM7 128K FLASH LQFP64 制造商:NXP Semiconductors 功能描述:MCU 32BIT ARM7 128K FLASH, LQFP64 |
| LPC2144FBD64,151 | 功能描述:ARM微控制器 - MCU ARM7 128KF/16KR/USB 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 最大時鐘頻率:72 MHz 程序存儲器大小: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 安裝風格:SMD/SMT |
| LPC2144FBD64/S500, | 制造商:NXP Semiconductors 功能描述:PHALPC2144FBD64/S500,151 16-BIT/32-BIT M |
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