DS1390U-33+ Dallas Semiconductor, DS1390U-33+ Datasheet - Page 5

• Manufacturer Part Number: DS1390U-33+
• Description: SERIAL RTC 3.3V USOP
• Manufacturer: Dallas Semiconductor

Specifications of DS1390U-33+

• Lead Free Status / Rohs Status: RoHS Compliant part

Figure 2a. Timing Diagram—SPI Write Transfer (Mode 3)
Figure 2b. Timing Diagram—SPI Write Transfer (Mode 0)
CPHA = 0
CPHA = 1
DOUT
SCLK
SCLK
DOUT
NOTE: SCLK CAN BE EITHER POLARITY SHOWN FOR CPOL = 1.
NOTE: SCLK CAN BE EITHER POLARITY SHOWN FOR CPOL = 0.
DIN
DIN
CS
CS
t
DC
t
CC
t
CC
t
DC
W/R
W/R
t
CDH
t
CDH
t
t
CL
R
t
R
t
CL
Low-Voltage SPI/3-Wire RTCs with
WRITE ADDRESS BYTE
WRITE ADDRESS BYTE
_____________________________________________________________________
A6
A6
t
t
CH
CH
t
t
F
F
HIGH IMPEDANCE
HIGH IMPEDANCE
A0
A0
Trickle Charger
D7
D7
READ DATA BYTE
READ DATA BYTE
t
CCH
D0
D0
t
CWH
t
CWH
t
CCH
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