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參數(shù)資料
| 型號： | LPC2214FBD144 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 數(shù)學(xué)處理器 |
| 英文描述： | Single-chip 16-32-bit ARM microcontrollers; 128-256 kB ISP-IAP flash with 10-bit ADC and external memory interface |
| 封裝： | LPC2212FBD144/01<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486-1.html<1<Always Pb-free,;LPC2214FBD144/01<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486 |
| 文件頁數(shù)： | 12/47頁 |
| 文件大?。?/td> | 337K |
| 代理商： | LPC2214FBD144 |
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LPC2212_2214
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 14 June 2011
12 of 47
NXP Semiconductors
LPC2212/2214
Single-chip 16/32-bit ARM microcontrollers
6. Functional description
Details of the LPC2212/2214 systems and peripheral functions are described in the
following sections.
6.1 Architectural overview
The ARM7TDMI-S is a general purpose 32-bit microprocessor, which offers high
performance and very low power consumption. The ARM architecture is based on
Reduced Instruction Set Computer (RISC) principles, and the instruction set and related
decode mechanism are much simpler than those of microprogrammed Complex
Instruction Set Computers. This simplicity results in a high instruction throughput and
impressive real-time interrupt response from a small and cost-effective processor core.
Pipeline techniques are employed so that all parts of the processing and memory systems
can operate continuously. Typically, while one instruction is being executed, its successor
is being decoded, and a third instruction is being fetched from memory.
The ARM7TDMI-S processor also employs a unique architectural strategy known as
Thumb, which makes it ideally suited to high-volume applications with memory
restrictions, or applications where code density is an issue.
The key idea behind Thumb is that of a super-reduced instruction set. Essentially, the
ARM7TDMI-S processor has two instruction sets:
The standard 32-bit ARM set.
A 16-bit Thumb set.
The Thumb set’s 16-bit instruction length allows it to approach twice the density of
standard ARM code while retaining most of the ARM’s performance advantage over a
traditional 16-bit processor using 16-bit registers. This is possible because Thumb code
operates on the same 32-bit register set as ARM code.
Thumb code is able to provide up to 65 % of the code size of ARM, and 160 % of the
performance of an equivalent ARM processor connected to a 16-bit memory system.
6.2 On-chip flash program memory
The LPC2212/2214 incorporate a 128 kB and 256 kB flash memory system respectively.
This memory may be used for both code and data storage. Programming of the flash
memory may be accomplished in several ways. It may be programmed In System via the
serial port. The application program may also erase and/or program the flash while the
application is running, allowing a great degree of flexibility for data storage field firmware
upgrades, etc. When on-chip bootloader is used, 120/248 kB of flash memory is available
for user code.
The LPC2212/2214 flash memory provides a minimum of 100000 erase/write cycles and
20 years of data retention.
On-chip bootloader (as of revision 1.60) provides Code Read Protection (CRP) for the
LPC2212/2214 on-chip flash memory. When the CRP is enabled, the JTAG debug port,
external memory boot and ISP commands accessing either the on-chip RAM or flash
memory are disabled. However, the ISP flash erase command can be executed at any
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2214FBD144,551 | 功能描述:ARM微控制器 - MCU PREF PART LPC2214FBD144/01-S 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(fēng)格:SMD/SMT |
| LPC2214FBD144,557 | 制造商:NXP Semiconductors 功能描述:IC,MCU ARM7, 144LQFP |
| LPC2214FBD144/00 | 制造商:NXP Semiconductors 功能描述:16/32BIT ARM7 MCU 128K FLASH SMD |
| LPC2214FBD144/00,5 | 制造商:NXP Semiconductors 功能描述:MCU 16-Bit/32-Bit LPC2000 ARM7TDMI-S RISC 256KB Flash 1.8V/3.3V 144-Pin LQFP Tray |
| LPC2214FBD144/00,551 | 制造商:NXP 功能描述:0 |
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