DS1393 Maxim Integrated Products, DS1393 Datasheet - Page 4

• Manufacturer Part Number: DS1393
• Description: (DS1390 - DS1393) Low-Voltage SPI/3-Wire RTCs
• Manufacturer: Maxim Integrated Products

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Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
Figure 1. Timing Diagram—SPI Read Transfer
Figure 2. Timing Diagram—SPI Write Transfer
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SCLK
DOUT
NOTE: SCLK CAN BE EITHER POLARITY, SHOWN FOR CPOL = 1.
CS
SCLK
DIN
CS
DIN
t
DC
t
DC
t
CC
t
CC
W/R
W/R
t
CDH
WRITE ADDRESS BYTE
t
CDH
t
t
CL
R
t
CL
WRITE ADDRESS BYTE
t
R
A6
A6
t
CH
t
CH
t
F
A0
t
F
A0
D7
t
CDD
WRITE DATA BYTE
D7
READ DATA BYTE
D0
t
CWH
t
CCH
D0
t
CDZ