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參數(shù)資料
| 型號(hào)： | LPC3230FET296,551 |
| 廠商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 36/57頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC ARM9 MCU 256K 296-TFBGA |
| 特色產(chǎn)品： | LPC32x0 ARM926EJ-S Processor |
| 標(biāo)準(zhǔn)包裝： | 126 |
| 系列： | LPC3200 |
| 核心處理器： | ARM9 |
| 芯體尺寸： | 16/32-位 |
| 速度： | 266MHz |
| 連通性： | EBI/EMI，I²C，IrDA，Microwire，SPI，SSI，SSP，UART/USART，USB OTG |
| 外圍設(shè)備： | DMA，I²S，LCD，電機(jī)控制 PWM，PWM，WDT |
| 輸入/輸出數(shù)： | 51 |
| 程序存儲(chǔ)器類型： | ROMless |
| RAM 容量： | 256K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 0.9 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 3x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 296-TFBGA |
| 包裝： | 托盤 |
| 其它名稱： | 568-4531 935287119551 |
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LPC3220_30_40_50
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 2 — 20 October 2011
41 of 79
NXP Semiconductors
LPC3220/30/40/50
16/32-bit ARM microcontrollers
7.9.2 Keyboard scanner
The keyboard scanner function can automatically scan a keyboard of up to 64 keys in an
8
8 matrix. In operation, the keyboard scanner’s internal state machine will normally be
in an idle state, with all KEY_ROWn pins set high, waiting for a change in the column
inputs to indicate that one or more keys have been pressed.
When a keypress is detected, the matrix is scanned by setting one output pin high at a
time and reading the column inputs. After de-bouncing, the keypad state is stored and an
interrupt is generated. The keypad is then continuously scanned waiting for ‘extra key
pressed’ or ‘key released’. Any new keypad state is scanned and stored into the matrix
registers followed by a new interrupt request to the interrupt controller. It is possible to
detect and separate up to 64 multiple keys pressed.
7.9.2.1
Features
Supports up to 64 keys in 8 8 matrix.
Programmable de-bounce period.
A key press can wake up the CPU from Stop mode.
7.9.3 Touch screen controller and 10-bit ADC
The LPC3220/30/40/50 microcontrollers includes Touch Screen Controller (TSC)
hardware, which automatically measures and determines the X and Y coordinates where
a touch screen is pressed. In addition, the TSC can measure an analog input signal on the
AUX_IN pin.
Optionally, the TSC can operate as an Analog-to-Digital Converter (ADC). The ADC
supports three channels and uses 10-bit successive approximation to produce results with
a resolution of 10 bits in 11 clock cycles.
The analog portion of the ADC has its own power supply to enhance the low noise
characteristics of the converter. This voltage is only supplied internally when the core has
voltage. However, the ADC block is not affected by any difference in ramp-up time for
VDD_AD and VDD_CORE voltage supplies.
7.9.3.1
Features
Measurement range of 0 V to VDD_AD (nominally 3.3 V).
Low-noise ADC.
10-bit resolution.
Three input channels.
Uses 32 kHz RTC clock or peripheral clock.
7.9.4 Real-Time Clock (RTC) and battery RAM
The RTC runs at 32768 Hz using a very low power oscillator. The RTC counts seconds
and can generate alarm interrupts that can wake up the device from Stop mode. The RTC
clock can also clock the 397x PLL, the Millisecond Timer, the ADC, the Keyboard Scanner
and the PWMs. The RTC up-counter value represents a number of seconds elapsed since
second 0, which is an application determined time. The RTC counter will reach maximum
value after about 136 years. The RTC down-counter is initiated with all ones.
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相關(guān)代理商/技術(shù)參數(shù) |
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| LPC3240 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16/32-bit ARM microcontrollers; hardware floating-point coprocessor, USB On-The-Go, and EMC memory interface |
| LPC3240FET296 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16/32-bit ARM microcontrollers; hardware floating-point coprocessor, USB On-The-Go, and EMC memory interface |
| LPC3240FET296,551 | 功能描述:ARM微控制器 - MCU ARM9 256KRAM VFP USB OTG ETH 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 |
| LPC3240FET296/01 | 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 266MHZ, TFBGA-296 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 266MHZ, TFBGA-296, Controller Family/Series:LPC3200, Core Size 制造商:NXP Semiconductors 功能描述:MCU, 16BIT/32BIT, 266MHZ, TFBGA-296, Controller Family/Series:LPC3200, Core Size:16bit / 32bit, No. of I/O's:87, Supply Voltage Min:2.7V, Supply Voltage Max:3.6V, Digital IC Case Style:TFBGA, No. of Pins:296, Program Memory Size:-, |
| LPC3240FET296/01,5 | 功能描述:ARM微控制器 - MCU ARM9 VFP USB OTG Improved LCD 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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