Rainbow Electronics AT90SO4 - Manual (Page 11)

11
AT90SO4
6579A–SMS–29Jan10
Table 7. High Speed SPI characteristics in Slave Mode (2.7V - 5.50V range; T= -25°C to +85°C)
Symbol Parameter Condition Min. Typ. Max. Units
t
SCKfalling
SCK falling to MISO Delay
C
OUT
=10pF
C
OUT
=20pF
13 ns
t
SCKrising
SCK rising to MISO Delay
C
OUT
=10pF
C
OUT
=20pF
13 ns
t
MOSIsetup
MOSI Setup time before SCK rises
C
OUT
=10pF
C
OUT
=20pF
10 ns
t
MOSIhold
MOSI Hold time after SCK rises
C
OUT
=10pF
C
OUT
=20pF
10 ns
t’
MOSIsetup
MOSI Setup time before SCK falls C
OUT
=10pF
C
OUT
=20pF
10 ns
t’
MOSIhold
MOSI Hold time after SCK falls
C
OUT
=10pF
C
OUT
=20pF
10 ns
t
SSsetup
SS Setup time
C
OUT
=10pF
C
OUT
=20pF
10 ns
t
dat->dat
Interbyte delay C
OUT
=10pF
C
OUT
=20pF
10 ns
SCK Slave frequency
C
OUT
=10pF
C
OUT
=20pF
20 MHz