CYRF6936 データシートの表示（PDF） - Cypress Semiconductor
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CYRF6936 Datasheet PDF : 28 Pages
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CYRF6936
AC Characteristics[16]
Table 7. SPI Interface[17]
Parameter
tSCK_CYC
tSCK_HI
tSCK_LO
tDAT_SU
tDAT_HLD
tDAT_VAL
tDAT_VAL_TRI
tSS_SU
tSS_HLD
tSS_PW
tSCK_SU
tSCK_HLD
tRESET
Description
SPI Clock Period
SPI Clock High Time
SPI Clock Low Time
SPI Input Data Setup Time
SPI Input Data Hold Time
SPI Output Data Valid Time
SPI Output Data Tri-state (MOSI from Slave Select Deassert)
SPI Slave Select Setup Time before first positive edge of SCK[18]
SPI Slave Select Hold Time after last negative edge of SCK
SPI Slave Select Minimum Pulse Width
SPI Slave Select Setup Time
SPI SCK Hold Time
Minimum RST Pin Pulse Width
SCK
nSS
MOSI input
MISO
Figure 10. SPI Timing
tSCK_CYC
tSCK_SU
tSS_SU
tDAT_SU
tSCK_HI
tDAT_HLD
tSCK_LO
tDAT_VAL
Min
238.1
100
100
25
10
0
10
10
20
10
10
10
Typ Max Unit
ns
ns
ns
ns
ns
50 ns
20 ns
ns
ns
ns
ns
ns
ns
tSCK_HLD
tSS_HLD
tDAT_VAL_TRI
MOSI output
Notes
16. AC values are not guaranteed if voltage on any pin exceeding VI/O.
17. CLOAD = 30 pF
18. SCK must start low at the time SS goes LOW, otherwise the success of SPI transactions are not guaranteed.
Document #: 38-16015 Rev. *J
Page 16 of 28
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