參數(shù)資料
型號(hào): LPC1751FBD80
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Cortex-M3 with 32 kB flash, 8 kB SRAM, USB 2.0 Device, CAN, 12-bit ADC
中文描述: 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT315-1, 80 PIN
文件頁(yè)數(shù): 66/74頁(yè)
文件大?。?/td> 1572K
代理商: LPC1751FBD80
LPC1759_58_56_54_52_51
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 7 — 29 March 2011
66 of 74
NXP Semiconductors
LPC1759/58/56/54/52/51
32-bit ARM Cortex-M3 microcontroller
order to keep the noise coupled in via the PCB as small as possible. Also parasitics
should stay as small as possible. Values of C
x1
and C
x2
should be chosen smaller
accordingly to the increase in parasitics of the PCB layout.
14.4 Standard I/O pin configuration
Figure 34
shows the possible pin modes for standard I/O pins with analog input function:
Digital output driver: Open-drain mode enabled/disabled
Digital input: Pull-up enabled/disabled
Digital input: Pull-down enabled/disabled
Digital input: Repeater mode enabled/disabled
Analog input
The default configuration for standard I/O pins is input with pull-up enabled. The weak
MOS devices provide a drive capability equivalent to pull-up and pull-down resistors.
Fig 34. Standard I/O pin configuration with analog input
PIN
V
DD
V
DD
ESD
V
SS
ESD
strong
pull-up
strong
pull-down
V
DD
weak
pull-up
weak
pull-down
open-drain enable
output enable
repeater mode
enable
pull-up enable
pull-down enable
data output
data input
analog input
select analog input
002aaf272
pin configured
as digital output
driver
pin configured
as digital input
pin configured
as analog input
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