Rainbow Electronics DS1722 - Manual (Page 11)

DS1722
11 of 13
TIMING DIAGRAM: 3-WIRE WRITE DATA TRANSFER Figure 10
*I/O is SDI and SDO tied together.
AC ELECTRICAL CHARACTERISTICS: SPI Interface
(-55
°°°°
C to +120
°°°°
C, 2.65V
≤≤≤≤ ====V
DD
≤≤≤≤ ====5.5V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Data to SCLK Setup t
DC
35 ns 5, 6
SCLK to Data Hold t
CDH
35 ns 5, 6
SCLK to Data Valid t
CDD
80 ns 5, 6, 7
SCLK Low Time t
CL
100 ns 6
SCLK High Time t
CH
100 ns 6
SCLK Frequency t
CLK
DC 5.0 MHz 6
SCLK Rise and Fall t
R
, t
F
200 ns
CE to SCLK Setup t
CC
400 ns 6
SCLK to CE Hold t
CCH
100 ns 6
CE Inactive Time t
CWH
400 ns 6
CE to Output High Z t
CDZ
40 ns 5, 6
TIMING DIAGRAM: SPI READ DATA TRANSFER Figure 11