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CR95HF датащи(PDF) 39 Page - STMicroelectronics

номер детали CR95HF
подробное описание детали  13.56-MHz multi-protocol contactless transceiver IC with SPI and UART serial access
PDF  63 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

CR95HF датащи(HTML) 39 Page - STMicroelectronics

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CR95HF
Electrical characteristics
Doc ID 018669 Rev 8
39/63
6.4
SPI characteristics
The CR95HF supports (CPOL = 0, CPHA = 0) and (CPOL = 1, CPHA = 1) modes.
Figure 12.
SPI timing diagram (Slave mode and CPOL = 0, CPHA = 0)
Table 32.
SPI interface characteristics
Symbol
Parameter
Condition
Min.
Max.
Unit
fSCK
1/ tc(SCK)
SPI clock frequency
2.0
MHz
VIL
Input low voltage
0.3
VPS
VIH
Input high voltage
0.7
VOL
Output low voltage
0.4
VOH
Output high voltage
0.7
tSU(NSS)
(1)
1.
Values based on design simulation and/or characterization results, and not on tested in production.
NSS setup time
70
ns
th(NSS)
(1)
NSS hold time
0
tCH(SCKL)
(1)
Clock low time
200
ns
tCH(SCKH)
(1)
Clock high time
200
tSU(SI)
(1)
Data slave Input setup time
20
ns
th(SI)
(1)
Data slave Input hold time
80
tv(SO)
(1)
Data slave output valid time
80
ns
th(SO)
(1)
Data slave output hold time
After enable
edge
150
Cb_SPI_IN
Capacitive load for input pins NSS,
CLK, MOSI
3pF
Cb_SPI_OUT
Capacitive load for input pins
MOSI
20
pF



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