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参数资料
| 型号： | LPC11C12FBD48 |
| 厂商： | NXP Semiconductors N.V. |
| 元件分类： | 32位微控制器 |
| 英文描述： | Cortex-M0 with 16 kB flash, 8 kB SRAM, CAN and CANopen drivers on-chip |
| 中文描述： | Cortex-M0,16KB闪存，8 KB静态随机存储器，CAN和CANopen片上驱动 |
| 封装： | LPC11C12FBD48/301<SOT313-2 (LQFP48)|<<http://www.nxp.com/packages/SOT313-2.html<1<Always Pb-free,; |
| 文件页数： | 22/62页 |
| 文件大小： | 487K |
| 代理商： | LPC11C12FBD48 |
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LPC11CX2_CX4
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 3 — 27 June 2011
22 of 62
NXP Semiconductors
LPC11Cx2/Cx4
32-bit ARM Cortex-M0 microcontroller
–
Toggle on match.
–
Do nothing on match.
7.14 System tick timer
The ARM Cortex-M0 includes a system tick timer (SYSTICK) that is intended to generate
a dedicated SYSTICK exception at a fixed time interval (typically 10 ms).
7.15 Watchdog timer
The purpose of the watchdog is to reset the microcontroller within a selectable time
period.
7.15.1
Features
Internally resets chip if not periodically reloaded.
Debug mode.
Enabled by software but requires a hardware reset or a watchdog reset/interrupt to be
disabled.
Incorrect/Incomplete feed sequence causes reset/interrupt if enabled.
Flag to indicate watchdog reset.
Programmable 24-bit timer with internal prescaler.
Selectable time period from (T
cy(WDCLK)
256
4) to (T
cy(WDCLK)
2
24
4) in
multiples of T
cy(WDCLK)
4.
The Watchdog Clock (WDCLK) source can be selected from the Internal RC oscillator
(IRC), the Watchdog oscillator, or the main clock. This gives a wide range of potential
timing choices of Watchdog operation under different power reduction conditions. It
also provides the ability to run the WDT from an entirely internal source that is not
dependent on an external crystal and its associated components and wiring for
increased reliability.
7.16 Clocking and power control
7.16.1
Crystal oscillators
The LPC11Cx2/Cx4 include three independent oscillators. These are the system
oscillator, the Internal RC oscillator (IRC), and the Watchdog oscillator. Each oscillator can
be used for more than one purpose as required in a particular application.
Following reset, the LPC11Cx2/Cx4 will operate from the Internal RC oscillator until
switched by software. This allows systems to operate without any external crystal and the
bootloader code to operate at a known frequency.
See
Figure 5
for an overview of the LPC11Cx2/Cx4 clock generation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LPC11C12FBD48/301 | 功能描述:ARM微控制器 - MCU 32-bit Cortex M0 16KB 8K RAM CAN RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| LPC11C12FBD48/301, | 功能描述:ARM微控制器 - MCU 32b 16K Flash 40I/O RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT |
| LPC11C12FBD48/301,15 | 制造商:NXP Semiconductors 功能描述:Bulk |
| LPC11C12FBD48-301 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:32-bit ARM Cortex-M0 microcontroller; 16/32 kB flash, 8 kB SRAM; C_CAN |
| LPC11C14FB301 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:32-bit ARM Cortex-M0 microcontroller; 16/32 kB flash, 8 kB SRAM C_CAN |
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