DS1722 Datasheet, PDF (12/14 Pages) Dallas Semiconductor – Digital Thermometer with SPI/3-Wire Interface

TIMING DIAGRAM: 3-WIRE WRITE DATA TRANSFER Figure 10
DS1722
*I/O is SDI and SDO tied together.
AC ELECTRICAL CHARACTERISTICS: SPI Interface
PARAMETER
(-55°C to +120°C, 2.65V ≤ V_DD ≤ 5.5V)
SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Data to SCLK Setup
t_DC
35
ns
5, 6
SCLK to Data Hold
t_CDH
SCLK to Data Valid
t_CDD
SCLK Low Time
t_CL
SCLK High Time
t_CH
SCLK Frequency
t_CLK
SCLK Rise and Fall
t_R, t_F
35
ns
5, 6
80
ns
5, 6, 7
100
ns
6
100
ns
6
DC
5.0 MHz
6
200
ns
CE to SCLK Setup
t_CC
SCLK to CE Hold
t_CCH
CE Inactive Time
t_CWH
CE to Output High Z
t_CDZ
400
ns
6
100
ns
6
400
ns
6
40
ns
5, 6
TIMING DIAGRAM: SPI READ DATA TRANSFER Figure 11
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