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參數(shù)資料
| 型號： | LPC11U12FBD48 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 32位微控制器 |
| 英文描述： | 32-bit ARM Cortex-M0 microcontroller; up to 16 kB flash; 6 kB SRAM; USB device; USART; 2 SSPs |
| 中文描述： | 32位ARM的Cortex-M0微控制器；最大16kB閃存；6kB 靜態(tài)隨機存儲器；USB驅(qū)動；通用同步/異步串行接收/發(fā)送器；2個同步串行接口控制器 |
| 封裝： | LPC11U12FBD48/201<SOT313-2 (LQFP48)|<<http://www.nxp.com/packages/SOT313-2.html<1<Always Pb-free,; |
| 文件頁數(shù)： | 54/64頁 |
| 文件大?。?/td> | 898K |
| 代理商： | LPC11U12FBD48 |
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LPC11U1X
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Objective data sheet
Rev. 1 — 11 April 2011
54 of 64
NXP Semiconductors
LPC11U1x
32-bit ARM Cortex-M0 microcontroller
Table 19.
11.3 XTAL 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 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.
5 MHz - 10 MHz
10 pF
20 pF
30 pF
10 pF
20 pF
10 pF
< 300
Ω
< 200
Ω
< 100
Ω
< 160
Ω
< 60
Ω
< 80
Ω
18 pF, 18 pF
39 pF, 39 pF
57 pF, 57 pF
18 pF, 18 pF
39 pF, 39 pF
18 pF, 18 pF
10 MHz - 15 MHz
15 MHz - 20 MHz
Recommended values for C
X1
/C
X2
in oscillation mode (crystal and external
components parameters) high frequency mode
Fundamental oscillation
frequency F
OSC
capacitance C
L
15 MHz - 20 MHz
10 pF
20 pF
20 MHz - 25 MHz
10 pF
20 pF
Crystal load
Maximum crystal
series resistance R
S
< 180
Ω
< 100
Ω
< 160
Ω
< 80
Ω
External load
capacitors C
X1
, C
X2
18 pF, 18 pF
39 pF, 39 pF
18 pF, 18 pF
39 pF, 39 pF
Table 18.
Recommended values for C
X1
/C
X2
in oscillation mode (crystal and external
components parameters) low frequency mode
Fundamental oscillation
frequency F
OSC
capacitance C
L
Crystal load
Maximum crystal
series resistance R
S
External load
capacitors C
X1
, C
X2
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| LPC11U12FBD48.201 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32-bit ARM Cortex-M0 microcontroller; up to 32 kB flash; 6 kB SRAM; USB device; USART |
| LPC11U12FBD48/201 | 制造商:NXP Semiconductors 功能描述:MCU 32BIT 16K FLASH 48LQFP |
| LPC11U12FBD48/201, | 功能描述:ARM微控制器 - MCU 32-bit ARM Cortex-M0 MCU 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 |
| LPC11U12FHN201 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32-bit ARM Cortex-M0 microcontroller; up to 32 kB flash; 6 kB SRAM; USB device; USART |
| LPC11U12FHN33 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-cost Cortex-M0 USB solutions with Smart Card interface |
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