參數(shù)資料
型號(hào)： LPC2131
廠商： NXP Semiconductors N.V.
英文描述： Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP Flash with 10-bit ADC and DAC
中文描述： 16/32位 單片微控制器；有10位數(shù)模/模數(shù)轉(zhuǎn)換，32/64/512kB的ISP/IAP flash閃存
文件頁(yè)數(shù)： 26/41頁(yè)
文件大?。?/td> 190K
代理商： LPC2131
9397 750 14868
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Preliminary data sheet
Rev. 02 — 15 April 2005
26 of 41
Philips Semiconductors
LPC2131/2132/2134/2136/2138
Single-chip 16/32-bit microcontrollers
When the internal reset is removed, the processor begins executing at address 0, which is
the reset vector. At that point, all of the processor and peripheral registers have been
initialized to predetermined values.
The wake-up timer ensures that the oscillator and other analog functions required for chip
operation are fully functional before the processor is allowed to execute instructions. This
is important at power on, all types of reset, and whenever any of the aforementioned
functions are turned off for any reason. Since the oscillator and other functions are turned
off during Power-down mode, any wake-up of the processor from Power-down mode
makes use of the wake-up timer.
The wake-up timer monitors the crystal oscillator as the means of checking whether it is
safe to begin code execution. When power is applied to the chip, or some event caused
the chip to exit Power-down mode, some time is required for the oscillator to produce a
signal of sufficient amplitude to drive the clock logic. The amount of time depends on
many factors, including the rate of V
DD
ramp (in the case of power on), the type of crystal
and its electrical characteristics (if a quartz crystal is used), as well as any other external
circuitry (e.g. capacitors), and the characteristics of the oscillator itself under the existing
ambient conditions.
6.21.4
Brown-out detector
The LPC2131/2132/2134/2136/2138 include 2-stage monitoring of the voltage on the V
DD
pins. If this voltage falls below 2.9 V, the BOD asserts an interrupt signal to the Vectored
Interrupt Controller. This signal can be enabled for interrupt; if not, software can monitor
the signal by reading dedicated register.
The second stage of low-voltage detection asserts reset to inactivate the
LPC2131/2132/2134/2136/2138 when the voltage on the V
DD
pins falls below 2.6 V. This
reset prevents alteration of the Flash as operation of the various elements of the chip
would otherwise become unreliable due to low voltage. The BOD circuit maintains this
reset down below 1 V, at which point the POR circuitry maintains the overall reset.
Both the 2.9 V and 2.6 V thresholds include some hysteresis. In normal operation, this
hysteresis allows the 2.9 V detection to reliably interrupt, or a regularly-executed event
loop to sense the condition.
6.21.5
Code security
This feature of the LPC2131/2132/2134/2136/2138 allow an application to control whether
it can be debugged or protected from observation.
If after reset on-chip boot-loader detects a valid checksum in Flash and reads
0x87654321 from address 0x1FC in Flash, debugging will be disabled and thus the code
in Flash will be protected from observation. Once debugging is disabled, it can be enabled
only by performing a full chip erase using the ISP.
6.21.6
External interrupt inputs
The LPC2131/2132/2134/2136/2138 include up to nine edge or level sensitive External
Interrupt Inputs as selectable pin functions. When the pins are combined, external events
can be processed as four independent interrupt signals. The External Interrupt Inputs can
optionally be used to wake up the processor from Power-down mode.
相關(guān)PDF資料
PDF描述
LPC2132 Single-chip 16/32-bit microcontrollers; 32/64/512 kB ISP/IAP Flash with 10-bit ADC and DAC
LPC2142 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
LPC2141 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
LPC2144 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
LPC2146 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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC2131-01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ARM7-based microcontrollers with two 10-bit ADCs and 10-bit DAC
LPC2131FBD64 制造商:NXP Semiconductors 功能描述:16/32BIT MCU ARM7 32K FLASH 64LQFP 制造商:NXP Semiconductors 功能描述:16/32BIT MCU ARM7, 32K FLASH, 64LQFP 制造商:NXP Semiconductors 功能描述:16/32BIT MCU ARM7, 32K FLASH, 64LQFP; Controller Family/Series:LPC21xx; Core Size:32bit; No. of I/O's:47; Supply Voltage Min:3V; Supply Voltage Max:3.6V; Digital IC Case Style:LQFP; No. of Pins:64; Program Memory Size:32KB; RAM ;RoHS Compliant: Yes 制造商:NXP Semiconductors 功能描述:Microcontroller,LPC2131FBD64 60 MHz
LPC2131FBD64,151 功能描述:ARM微控制器 - MCU 32K FL/8K RM/10B ADC/LV RTC 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
LPC2131FBD64/01 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64, Controller Family/Series:LPC2100, Core Size:16 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 60MHZ, LQFP-64, Controller Family/Series:LPC2100, Core Size:16bit / 32bit, No. of I/O's:47, Supply Voltage Min:3V, Supply Voltage Max:3.6V, Digital IC Case Style:LQFP, No. of Pins:64, Program Memory Size:32KB, RAM
LPC2131FBD64/01,11 功能描述:ARM微控制器 - MCU 32K FL/8K RAM 10BIT ADC/DAC 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
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