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參數(shù)資料
| 型號： | LPC1751FBD80 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Cortex-M3 with 32 kB flash, 8 kB SRAM, USB 2.0 Device, CAN, 12-bit ADC |
| 中文描述： | 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PQFP80 |
| 封裝： | 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT315-1, 80 PIN |
| 文件頁數(shù)： | 27/74頁 |
| 文件大小： | 1572K |
| 代理商： | LPC1751FBD80 |
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LPC1759_58_56_54_52_51
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 29 March 2011
27 of 74
NXP Semiconductors
LPC1759/58/56/54/52/51
32-bit ARM Cortex-M3 microcontroller
7.25 Repetitive Interrupt (RI) timer
The repetitive interrupt timer provides a free-running 32-bit counter which is compared to
a selectable value, generating an interrupt when a match occurs. Any bits of the
timer/compare can be masked such that they do not contribute to the match detection.
The repetitive interrupt timer can be used to create an interrupt that repeats at
predetermined intervals.
7.25.1
Features
32-bit counter running from PCLK. Counter can be free-running or be reset by a
generated interrupt.
32-bit compare value.
32-bit compare mask. An interrupt is generated when the counter value equals the
compare value, after masking. This allows for combinations not possible with a simple
compare.
7.26 ARM Cortex-M3 system tick timer
The ARM Cortex-M3 includes a system tick timer (SYSTICK) that is intended to generate
a dedicated SYSTICK exception at a 10 ms interval. In the LPC1759/58/56/54/52/51, this
timer can be clocked from the internal AHB clock or from a device pin.
7.27 Watchdog timer
The purpose of the watchdog is to reset the microcontroller within a reasonable amount of
time if it enters an erroneous state. When enabled, the watchdog will generate a system
reset if the user program fails to ‘feed’ (or reload) the watchdog within a predetermined
amount of time.
7.27.1
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 32-bit timer with internal prescaler.
Selectable time period from (T
cy(WDCLK)
256
4) to (T
cy(WDCLK)
2
32
4) in
multiples of T
cy(WDCLK)
4.
The Watchdog Clock (WDCLK) source can be selected from the Internal RC (IRC)
oscillator, the RTC oscillator, or the APB peripheral 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.
Includes lock/safe feature.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LPC1751FBD80,551 | 功能描述:ARM微控制器 - MCU ARM Cortex M3 Micro Controller 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 |
| LPC1751FBD80551 | 制造商:NXP Semiconductors 功能描述:IC 32BIT MCU 100MHZ LQFP-80 |
| LPC1752 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32-bit ARM Cortex-M3 MCU; up to 512 kB flash and 64 kB SRAM with Ethernet, USB 2.0 Host/Device/OTG, CAN |
| LPC1752FBD80 | 制造商:NXP Semiconductors 功能描述:MCU 32BIT ARM CORTEX M3 80LQFP 制造商:NXP Semiconductors 功能描述:MCU, 32BIT, ARM CORTEX M3, 80LQFP 制造商:NXP Semiconductors 功能描述:IC, 32BIT MCU, ARM CORTEX, 100MHZ LQFP80; Controller Family/Series:(ARM Cortex); Core Size:32bit; No. of I/O's:52; Supply Voltage Min:2.4V; Supply Voltage Max:3.6V; Digital IC Case Style:LQFP; No. of Pins:80; Program Memory Size:64KB;RoHS Compliant: Yes |
| LPC1752FBD80,551 | 功能描述:ARM微控制器 - MCU ARM Cortex M3 Micro Controller 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 |
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