NXP Semiconductors
10.3 Internal oscillators
Table 10. Dynamic characteristic: internal oscillators
T amb = ? 40 ° C to +85 ° C; 2.7 V ≤ V DD ≤ 3.6 V. [1]
LPC11C12/C14
Symbol
Parameter
Conditions
Min
Typ [2]
Max
Unit
f osc(RC)
internal RC oscillator frequency -
11.88
12
12.12
MHz
[1]
[2]
Parameters are valid over operating temperature range unless otherwise specified.
Typical ratings are not guaranteed. The values listed are at room temperature (25 ° C), nominal supply
voltages.
12.15
f
(MHz)
12.05
VDD = 3.6 V
3.3 V
3.0 V
2.7 V
002aaf403
2.4 V
2.0 V
11.95
11.85
? 40
? 15
10
35
60 85
temperature ( ° C)
Conditions: Frequency values are typical values. 12 MHz ± 1 % accuracy is guaranteed for
2.7 V ≤ V DD ≤ 3.6 V and T amb = ? 40 ° C to +85 ° C. Variations between parts may cause the IRC to
fall outside the 12 MHz ± 1 % accuracy specification for voltages below 2.7 V.
Fig 18. Internal RC oscillator frequency vs. temperature
Table 11.
Dynamic characteristics: Watchdog oscillator
Symbol Parameter
Conditions
Min
Typ [1]
Max
Unit
f osc
internal oscillator DIVSEL = 0x1F, FREQSEL = 0x1
[2][3]
7.8
-
kHz
frequency
in the WDTOSCCTRL register;
DIVSEL = 0x00, FREQSEL = 0xF
[2][3]
1700
-
kHz
in the WDTOSCCTRL register
[1]
[2]
[3]
Typical ratings are not guaranteed. The values listed are at room temperature (25 ° C), nominal supply
voltages.
The typical frequency spread over processing and temperature (T amb = ? 40 ° C to +85 ° C) is ± 40 %.
See the LPC11Cx user manual.
LPC11C12_C14_0
Preliminary data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 00.05 — 23 April 2010
? NXP B.V. 2010. All rights reserved.
35 of 49
相关PDF资料
MCB2470 BOARD EVAL NXP LPC247X SERIES
MCBSTM32EXL BOARD EVALUATION FOR STM32F103ZE
MCBTMPM330 BOARD EVAL TOSHIBA TMPM330 SER
MCIMX25WPDKJ KIT DEVELOPMENT WINCE IMX25
MCIMX53-START-R KIT DEVELOPMENT I.MX53
MCM69C432TQ20 IC CAM 1MB 50MHZ 100LQFP
MCP1401T-E/OT IC MOSFET DRVR INV 500MA SOT23-5
MCP1403T-E/MF IC MOSFET DRIVER 4.5A DUAL 8DFN
相关代理商/技术参数
MCB11C14-ED 制造商:ARM Ltd 功能描述:KEIL NXP LPC11C14 EVAL BOARD
MCB11C14U 功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC11C14 + ULINK2 RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
MCB11C14UME 功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC11C14 + ULINK-ME RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
MCB11C14UME-ED 制造商:ARM Ltd 功能描述:KEIL NXP LPC11C14 EVAL BOARD
MCB11U10 功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC11U14 RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
MCB11U10U 功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC11U14 + ULINK2 RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
MCB11U10U-ED 制造商:ARM Ltd 功能描述:KEIL NXP LPC11U10 EVAL BOARD
MCB11U10UME 功能描述:开发板和工具包 - ARM EVAL BOARD FOR NXP LPC11U14 + ULINK-ME RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V