參數(shù)資料
型號(hào)： LPC2470FET208
廠商： NXP Semiconductors N.V.
元件分類(lèi)： 數(shù)學(xué)處理器
英文描述： Flashless 16-bit-32-bit microcontroller; Ethernet, CAN, LCD, USB 2.0 device-host-OTG, external memory interface
封裝： LPC2470FBD208<SOT459-1 (LQFP208)|<<http://www.nxp.com/packages/SOT459-1.html<1<Always Pb-free,;LPC2470FET208<SOT950-1 (TFBGA208)|<<http://www.nxp.com/packages/SOT950-1.ht
文件頁(yè)數(shù)： 46/91頁(yè)
文件大小： 747K
代理商： LPC2470FET208
LPC2470
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 4 — 8 September 2011
46 of 91
NXP Semiconductors
LPC2470
Flashless 16-bit/32-bit microcontroller
level, starts the wake-up timer (see description in
Section 7.25.3 “Wake-up timer”
),
causing reset to remain asserted until the external Reset is de-asserted, the oscillator is
running, and a fixed number of clocks have passed.
Once the internal reset is removed, all of the processor and peripheral registers have
been initialized to predetermined values and the LPC2470 continues with booting from an
external static memory.
7.26.2
Boot process
The processor always boots from the off-chip static memory bank 1, executing code from
address 0x8100 0000 (see
Table 5 “LPC2470 memory usage and details”
). During the
boot process initiated by POR, the boot pins P3[15]/D15 and P3[14]/D14 are sampled,
and the external memory banks 0 and 1 are configured with the same data bus width. The
data bus width is determined by the setting of the two boot pins. Unused address pins are
configured as GPIO. See
Section 14.2 “Suggested boot memory interface solutions”
for
address and data bus interface details.
Remark:
After POR, the address ranges of chip select 1 and chip select 0 are swapped.
The user code residing in the external boot memory must be linked to execute from
address location 0x8000 0000.
When booting from external memory, the interrupt vectors are mapped to the bottom of
the external memory. Once booting is over, the application must map interrupt vectors to
the proper domain.
7.26.3
Brownout detection
The LPC2470 includes 2-stage monitoring of the voltage on the V
DD(DCDC)(3V3)
pins. If this
voltage falls below 2.95 V, the BOD asserts an interrupt signal to the Vectored Interrupt
Controller. This signal can be enabled for interrupt in the Interrupt Enable Register in the
VIC in order to cause a CPU interrupt; if not, software can monitor the signal by reading a
dedicated status register.
The second stage of low-voltage detection asserts a BOD Reset and generates a Reset (if
this reset source is enabled in software) to inactivate the LPC2470 when the voltage on
the V
DD(DCDC)(3V3)
pins falls below 2.65 V. The BOD circuit maintains this reset down
below 1 V, at which point the power-on reset circuitry maintains the overall Reset.
Both the 2.95 V and 2.65 V thresholds include some hysteresis. In normal operation, this
hysteresis allows the 2.95 V detection to reliably interrupt, or a regularly-executed event
loop to sense the condition.
7.26.4
AHB
The LPC2470 implements two AHB in order to allow the Ethernet block to operate without
interference caused by other system activity. The primary AHB, referred to as AHB1,
includes the Vectored Interrupt Controller, GPDMA controller, USB interface, and 16 kB
SRAM.
The second AHB, referred to as AHB2, includes only the Ethernet block and an
associated 16 kB SRAM. In addition, a bus bridge is provided that allows the secondary
AHB to be a bus master on AHB1, allowing expansion of Ethernet buffer space into
off-chip memory or unused space in memory residing on AHB1.
相關(guān)PDF資料
PDF描述
LPC2478FBD208 Single-chip 16-bit-32-bit micro; 512 kB flash, Ethernet, CAN, LCD, USB 2.0 device-host-OTG, external memory interface
LPC2478FET208 Single-chip 16-bit-32-bit micro; 512 kB flash, Ethernet, CAN, LCD, USB 2.0 device-host-OTG, external memory interface
LPC2917FBD144 ARM9 microcontroller with CAN and LIN
LPC2919FBD144 ARM9 microcontroller with CAN and LIN
LPC2921FBD100 ARM9 microcontroller with CAN, LIN, and USB
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC2470FET208,551 功能描述:ARM微控制器 - MCU LCD CONT/ETHNET USB/HOST/OTG 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
LPC2470FET208551 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
LPC2478 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit micro; 512 kB flash, Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface
LPC2478_08 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit micro; 512 kB flash, Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface
LPC2478_11 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit micro; 512 kB flash, Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*