參數(shù)資料
型號(hào)： LPC11U24FHN33/401,
廠商： NXP Semiconductors
文件頁數(shù)： 48/74頁
文件大小： 0K
描述： MCU USB 33HVQFN
產(chǎn)品培訓(xùn)模塊： Code Density for LPC11xx
標(biāo)準(zhǔn)包裝： 260
系列： LPC11Uxx
核心處理器： ARM? Cortex?-M0
芯體尺寸： 32-位
速度： 50MHz
連通性： I²C，Microwire，SPI，SSI，SSP，UART/USART，USB
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，WDT
輸入/輸出數(shù)： 26
程序存儲(chǔ)器容量： 32KB（32K x 8）
程序存儲(chǔ)器類型： 閃存
EEPROM 大小： 4K x 8
RAM 容量： 10K x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 32-VQFN 裸露焊盤
包裝： 托盤
其它名稱： 568-8524
LPC11U24FHN33/401,-ND
LPC11U2X
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2014. All rights reserved.
Product data sheet
Rev. 2.2 — 11 March 2014
52 of 74
NXP Semiconductors
LPC11U2x
32-bit ARM Cortex-M0 microcontroller
11. Application information
11.1 Suggested USB interface solutions
The USB device can be connected to the USB as self-powered device (see Figure 27) or
bus-powered device (see Figure 28).
On the LPC11U2x, the PIO0_3/USB_VBUS pin is 5 V tolerant only when VDD is applied
and at operating voltage level. Therefore, if the USB_VBUS function is connected to the
USB connector and the device is self-powered, the USB_VBUS pin must be protected for
situations when VDD = 0 V.
If VDD is always greater than 0 V while VBUS = 5 V, the USB_VBUS pin can be connected
directly to the VBUS pin on the USB connector.
For systems where VDD can be 0 V and VBUS is directly applied to the VBUS pin,
precautions must be taken to reduce the voltage to below 3.6 V, which is the maximum
allowable voltage on the USB_VBUS pin in this case.
One method is to use a voltage divider to connect the USB_VBUS pin to the VBUS on the
USB connector. The voltage divider ratio should be such that the USB_VBUS pin will be
greater than 0.7VDD to indicate a logic HIGH while below the 3.6 V allowable maximum
voltage.
For the following operating conditions
VBUSmax = 5.25 V
VDD = 3.6 V,
the voltage divider should provide a reduction of 3.6 V/5.25 V or ~0.686 V.
Fig 27. USB interface on a self-powered device where USB_VBUS = 5 V
LPC1xxx
USB-B
connector
USB_DP
USB_CONNECT
soft-connect switch
USB_DM
USB_VBUS
VSS
VDD
R1
1.5 kΩ
RS = 33 Ω
aaa-010178
RS = 33 Ω
R2
R3
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC11U2X 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32-bit ARM Cortex-M0 microcontroller; up to 32 kB flash; up to 10 kB SRAM and 4 kB EEPROM; USB device; USART
LPC11U34 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32-bit ARM Cortex-M0 microcontroller up to 128 kB flash up to 12 kB SRAM and 4 kB EEPROM USB device USART
LPC11U34FBD48 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:32-bit ARM Cortex-M0 microcontroller up to 128 kB flash up to 12 kB SRAM and 4 kB EEPROM USB device USART
LPC11U34FBD48/311 制造商:NXP Semiconductors 功能描述:MCU 32BIT ARM CORTEX-M0 48LQFP 制造商:NXP Semiconductors 功能描述:MCU, 32BIT, ARM CORTEX-M0, 48LQFP 制造商:NXP Semiconductors 功能描述:MCU, 32BIT, ARM CORTEX-M0, 48LQFP; Controller Family/Series:LPC11U3x; Core Size:32bit; No. of I/O's:40; Supply Voltage Min:1.8V; Supply Voltage Max:3.6V; Digital IC Case Style:LQFP; No. of Pins:48; Program Memory Size:40KB; EEPROM ;RoHS Compliant: Yes
LPC11U34FBD48/311, 功能描述:ARM微控制器 - MCU 32-bit ARM Cortex-M0 40KB Flash, 8KB SRAM 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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