MCP23008-ESLASHP datasheet(16/44 Pages) MICROCHIP

部件名	MCP23008-E/P

功能描述	8-Bit I/O Expander with Serial Interface

PDF	44 Pages

Scroll/Zoom	100%

制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

标志

16 / 44 page

MCP23008/MCP23S08

DS21919D-page 16

1.6.7

PULL-UP RESISTOR

CONFIGURATION (GPPU)

The GPPU register controls the pull-up resistors for the

port pins. If a bit is set and the corresponding pin is

configured as an input, the corresponding port pin is

internally pulled up with a 100 k

Ω resistor.

GPPU – GPIO PULL-UP RESISTOR REGISTER (ADDR 0x06)

R/W-0

PU7

PU6

PU5

PU4

PU3

PU2

PU1

PU0

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-0

PU7:PU0: These bits control the weak pull-up resistors on each pin (when configured as an input)

<7:0>.

1 = Pull-up enabled.

0 = Pull-up disabled.

MCP23008-E/P 数据表(PDF) 16 Page - Microchip Technology

MCP23008-E/P 数据表(HTML) 16 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

数据表下载