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NRF52811-QCAA-R Datasheet(PDF) 363 Page - Nordic Semiconductor

Part # NRF52811-QCAA-R
Description  nRF52811
PDF  444 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52811-QCAA-R Datasheet(HTML) 363 Page - Nordic Semiconductor

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Peripherals
Figure 135: TWIM timing diagram, 1 byte transaction
6.25.9 Pullup resistor
Max 700 px
R [kΩ]
30
25
20
15
10
5
0
cap [pF]
0
100
200
300
400
500
400 kbps
100 kbps
Figure 136: Recommended TWIM pullup value vs. line capacitance
• The I2C specification allows a line capacitance of 400 pF at most.
• The value of internal pullup resistor (RPU) for nRF52811 can be found in GPIO — General purpose
input/output on page 115.
6.26 TWIS — I2C compatible two-wire interface slave
with EasyDMA
TWI slave with EasyDMA (TWIS) is compatible with I2C operating at 100 kHz and 400 kHz. The TWI
transmitter and receiver implement EasyDMA.
4454_140 v1.0
363



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