參數(shù)資料
型號(hào)： LPC2458FET180
廠商： NXP Semiconductors N.V.
元件分類： 數(shù)學(xué)處理器
英文描述： Single-chip 16-bit-32-bit micro; 512 kB flash, Ethernet, CAN, ISP-IAP, USB 2.0 device-host-OTG, external memory interface
封裝： LPC2458FET180<SOT570-3 (TFBGA180)|<<http://www.nxp.com/packages/SOT570-3.html<1<Always Pb-free,;
文件頁數(shù)： 20/80頁
文件大小： 611K
代理商： LPC2458FET180
LPC2458
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 4 — 1 September 2011
20 of 80
NXP Semiconductors
LPC2458
Single-chip 16-bit/32-bit micro
[1]
5 V tolerant pad providing digital I/O functions with TTL levels and hysteresis.
[2]
5 V tolerant pad providing digital I/O functions (with TTL levels and hysteresis) and analog input. When configured as a ADC input,
digital section of the pad is disabled.
[3]
5 V tolerant pad providing digital I/O with TTL levels and hysteresis and analog output function. When configured as the DAC output,
digital section of the pad is disabled.
[4]
Open-drain 5 V tolerant digital I/O pad, compatible with I
2
C-bus 400 kHz specification. It requires an external pull-up to provide output
functionality. When power is switched off, this pin connected to the I
2
C-bus is floating and does not disturb the I
2
C lines. Open-drain
configuration applies to all functions on this pin.
[5]
Pad provides digital I/O and USB functions. It is designed in accordance with the
USB specification, revision 2.0
(Full-speed and
Low-speed mode only).
[6]
5 V tolerant pad with 5 ns glitch filter providing digital I/O functions with TTL levels and hysteresis.
[7]
Pad provides special analog functionality.
[8]
This pin has a built-in pull-up resistor.
[9]
This pin has no built-in pull-up and no built-in pull-down resistor.
[10] 5 V tolerant pad with 20 ns glitch filter providing digital I/O function with TTL levels and hysteresis.
[11] When the main oscillator is not used, connect XTAL1 and XTAL2 as follows: XTAL1 can be left floating or can be grounded (grounding
is preferred to reduce susceptibility to noise). XTAL2 should be left floating.
[12] If the RTC is not used, these pins can be left floating.
[13] Pad provides special analog functionality.
[14] Pad provides special analog functionality.
[15] Pad provides special analog functionality.
[16] Pad provides special analog functionality.
[17] Pad provides special analog functionality.
[18] Pad provides special analog functionality.
7. Functional description
7.1 Architectural overview
The LPC2458 microcontroller consists of an ARM7TDMI-S CPU with emulation support,
the ARM7 local bus for closely coupled, high-speed access to the majority of on-chip
memory, the AMBA AHB interfacing to high-speed on-chip peripherals and external
memory, and the AMBA APB for connection to other on-chip peripheral functions. The
microcontroller permanently configures the ARM7TDMI-S processor for little-endian byte
order.
The LPC2458 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 VIC, GPDMA controller, and EMC.
V
DDA
F2
[18]
I
analog 3.3 V pad supply voltage:
This should be nominally the same voltage as
V
DD(3V3)
but should be isolated to minimize noise and error. This voltage is used
to power the ADC and DAC.
ADC reference:
This should be nominally the same voltage as V
DD(3V3)
but
should be isolated to minimize noise and error. The level on this pin is used as a
reference for ADC and DAC.
RTC power supply:
3.3 V on this pin supplies the power to the RTC peripheral.
VREF
G2
[18]
I
VBAT
K1
[18]
I
Table 4.
Symbol
Pin description
…continued
Ball
Type
Description
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LPC2458FET180,551 功能描述:ARM微控制器 - MCU ARM7 512KF/USBH/ENET 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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LPC2458FET180551 制造商:NXP Semiconductors 功能描述:MCU ARM7 180TFBGA
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LPC2460_08 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Flashless 16-bit/32-bit micro; Ethernet, CAN, ISP/IAP, USB 2.0 device/host/OTG, external memory interface
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