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參數(shù)資料
| 型號(hào)： | MCW1001A-I/SS |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 9/66頁 |
| 文件大小： | 0K |
| 描述： | IC INTERFACE SOCKET XLP 28-SSOP |
| 標(biāo)準(zhǔn)包裝： | 47 |
| 系列： | * |
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2011 Microchip Technology Inc.
Preliminary
DS70671A-page 17
MCW1001A
2.5
GPIO PINS
When developing an application, the capabilities of the
port pins must be considered. Outputs on some pins
have higher output drive strength than others. Similarly,
some pins can tolerate higher than VDD input levels.
2.5.1
INPUT PINS AND VOLTAGE
CONSIDERATIONS
The voltage tolerance of the GPIO pins varies across
the bank of pins. Some of the pins when used as digital
only inputs can handle DC voltages up to 5.5V, a level
typical for digital logic circuits. Table summarizes the
input voltage capabilities of the I/O pins. For more infor-
mation on electrical characteristic, refer to Section 7.0,
Electrical Characteristics. Voltage excursions beyond
VDD on these pins should be avoided.
TABLE 2-1:
INPUT VOLTAGE LEVELS
2.5.2
PIN OUTPUT DRIVE
The GPIO output pin drive strength varies across the
GPIO bank of pins to meet the needs of a variety of
applications. There are two classes of output pins in
terms of drive capability.
GPIO<5:7> – Designed to drive higher current
loads, such as LED's.
GPIO<0:4> – Designed for small loads, typically
indication only. Table 2-2 summarizes the output
capabilities. For more information, refer to the
TABLE 2-2:
OUTPUT DRIVE LEVELS
:
2.5.3
INTERFACING TO A +5V SYSTEM
Though the VDDMAX of the MCW1001A is 3.6V, this
device is still capable of interfacing with 5V systems,
even if the VIH of the target system is above 3.6V. This
is accomplished by adding a pull-up resistor to the
GPIO pin, see Figure 2-2. To produce a high output, the
GPIO pin must be configured as an input, and to
produce a low output, the GPIO pin must be configured
as an output and set low. Only GPIO pins that are
tolerant of voltages up to 5.5V can be used for this type
of interface.
FIGURE 2-2:
+5V SYSTEM HARDWARE
INTERFACE
Pin
Tolerated
Input
Description
GPIO<0:4>
VDD
Only VDD input levels are
tolerated.
GPIO<5:7>
5.5V
Tolerates input levels above
VDD and useful for most
standard logic.
Pin
Drive
Description
GPIO<0:4> Medium Intended for indication.
GPIO<5:7>
High
Suitable for direct LED drive
levels.
GPIO1
+5V Device
+5V
MCW1001A
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCW1001AT-I/SS | 功能描述:IC INTERFACE SOCKET XLP 28-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:* 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| MCW1011 | 制造商:MINMAX 制造商全稱:Minmax Technology Co., Ltd. 功能描述:2W, Wide Input Range SIP, Single Output DC/DC Converters |
| MCW1012 | 制造商:MINMAX 制造商全稱:Minmax Technology Co., Ltd. 功能描述:2W, Wide Input Range SIP, Single Output DC/DC Converters |
| MCW1013 | 制造商:MINMAX 制造商全稱:Minmax Technology Co., Ltd. 功能描述:2W, Wide Input Range SIP, Single Output DC/DC Converters |
| MCW1021 | 制造商:MINMAX 制造商全稱:Minmax Technology Co., Ltd. 功能描述:2W, Wide Input Range SIP, Single Output DC/DC Converters |
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