Owner manual

CS61584A
10 DS261PP5
DS261PP5
SWITCHING CHARACTERISTICS - SERIAL PORT (T
A
= -40 to 85 °C; DV+, TV+, RV+ =
nominal ± 0.3 V; Inputs: Logic 0 = 0 V, Logic 1 = RV+)
Notes: 28. If SPOL = 0, then CS
should return high no sooner than 20 ns after the 16
th
rising edge of SCLK during
a serial port read.
29. Output load capacitance = 50 pF.
Parameter Symbol Min Typ Max Unit
SDI to SCLK Setup Time t
dc
25 - - ns
SCLK to SDI Hold Time t
cdh
25 - - ns
SCLK Low Time t
cl
50 - - ns
SCLK High Time t
ch
50 - - ns
SCLK Rise and Fall Time t
r
, t
f
- - 15 ns
CS
to SCLK Setup Time t
cc
20 - - ns
SCLK to CS
Hold Time (Note 28) t
cch
20 - - ns
CS
Inactive Time t
cwh
100 - - ns
SDO Valid to SCLK (Note 29) t
cdv
- - 50 ns
CS
to SDO High Z t
cdz
-50-ns
t
dc
t
cc
LSB LSB MSB
CONTROL BYTE DATA BYTE
CS
SCLK
SDI
t
ch
t
cwh
t
cch
t
cdh
t
cl
t
cdh
Figure 4. Serial Port Write Timing Diagram
HIGH
CS
SCLK
SDO
SPOL = 0
t
cdz
cdv
t
Figure 5. Serial Port Read Timing Diagram
CS61584A
10 DS261F1