6.7 Serial Parallel Interface (SPI) Bus Interface AC Timing Specifications(1)(2)
Over operating free-air temperature range (unless otherwise noted)
PARAMETER |
TEST CONDITIONS |
MIN |
TYP |
MAX |
UNIT |
f SCK
|
SCK frequency |
MODE_SEL = 1 |
|
10 |
20 |
MHz |
TSCK
|
SCK period |
|
50 |
|
|
ns |
tPH
|
SCK pulse width high |
|
|
0.4 × TSCK
|
|
ns |
tPL
|
SCK pulse width low |
|
0.4 × TSCK
|
|
ns |
tSU
|
MOSI setup time
|
|
4 |
4 |
|
ns |
tH
|
MOSI hold time
|
4 |
4 |
|
ns |
tSSSu
|
SS_N setup time
|
|
14 |
18 |
|
ns |
tSSH
|
SS_N hold time
|
4 |
4 |
|
ns |
tSSOF
|
SS_N off time |
|
1 |
|
μs |
tODZ
|
MISO driven to TRI-STATE time |
|
|
20 |
|
ns |
tOZD
|
MISO TRI-STATE-to-Driven time |
|
|
10 |
|
ns |
tOD
|
MISO output delay time |
|
|
15 |
|
ns |
(1) Typical values are parametric norms at VDD = 2.5 V, TA = 25ºC, and recommended operating conditions at the time of product characterization. Typical values are not production tested.
(2) These specifications support SPI 1.0 specifications.