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NRF52820-QDAA-R Datasheet(PDF) 278 Page - Nordic Semiconductor

Part # NRF52820-QDAA-R
Description  nRF52820
PDF  437 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 278 Page - Nordic Semiconductor

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Peripherals
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
A A A A A A A A
Reset 0x00000000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ID
Access
Field
Value ID
Value
Description
A
RW ORC
Over-read character. Character clocked out after an over-
read of the transmit buffer.
6.17.6 Electrical specification
6.17.6.1 SPIS slave interface electrical specifications
Symbol
Description
Min.
Typ.
Max.
Units
fSPIS
Bit rates for SPIS24
825
Mbps
tSPIS,START
Time from RELEASE task to receive/transmit (CSN active)
0.125
µs
6.17.6.2 Serial Peripheral Interface Slave (SPIS) timing specifications
Symbol
Description
Min.
Typ.
Max.
Units
tSPIS,CSCKIN
SCK input period
125
ns
tSPIS,RFSCKIN
SCK input rise/fall time
30
ns
tSPIS,WHSCKIN
SCK input high time
30
ns
tSPIS,WLSCKIN
SCK input low time
30
ns
tSPIS,SUCSN
CSN to CLK setup time
1000
ns
tSPIS,HCSN
CLK to CSN hold time
1000
ns
tSPIS,ASA
CSN to MISO driven
0
ns
tSPIS,ASO
CSN to MISO valid 26
1000
ns
tSPIS,DISSO
CSN to MISO disabled26
68
ns
tSPIS,CWH
CSN inactive time
300
ns
tSPIS,VSO
CLK edge to MISO valid
19
ns
tSPIS,HSO
MISO hold time after CLK edge
1827
ns
tSPIS,SUSI
MOSI to CLK edge setup time
59
ns
tSPIS,HSI
CLK edge to MOSI hold time
20
ns
24 High bit rates may require GPIOs to be set as High Drive, see GPIO chapter for more details.
25 The actual maximum data rate depends on the master's CLK to MISO and MOSI setup and hold
timings.
26 At 25 pF load, including GPIO capacitance, see GPIO electrical specification.
27 This is to ensure compatibility to SPI masters sampling MISO on the same edge as MOSI is output.
4463_156 v1.0
278



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