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ATMXT448UD-CCUBHA1 bảng dữ liệu(PDF) 30 Page - Microchip Technology

tên linh kiện ATMXT448UD-CCUBHA1
Giải thích chi tiết về linh kiện  maXTouch 448-node Touchscreen Controller
PDF  76 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

ATMXT448UD-CCUBHA1 bảng dữ liệu(HTML) 30 Page - Microchip Technology

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mXT448UD-CCUBHA1 1.0
DS40002352A-page 30
 2021 Microchip Technology Inc. and its subsidiaries
8.5
SDA and SCL
The I2C bus transmits data and clock with SDA and SCL, respectively. These are open-drain. The device can only drive
these lines low or leave them open. The termination resistors (Rp) pull the line up to VddIO if no I2C device is pulling it
down.
The termination resistors should be chosen so that the rise times on SDA and SCL meet the I2C specifications for the
interface speed being used, bearing in mind other loads on the bus. For best latency performance, it is recommended
that no other devices share the I2C bus with the maXTouch controller.
8.6
Clock Stretching
The device supports clock stretching in accordance with the I2C specification. It may also instigate a clock stretch if a
communications event happens during a period when the device is busy internally. The maximum clock stretch is 2 ms
and typically less than 350 µs.



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