DS1394U-33+T&R Maxim Integrated Products, DS1394U-33+T&R Datasheet - Page 4
![IC RTC SPI 3WIRE W/CHRGR 10-MSOP](/photos/6/57/65724/175-10-umax_sml.jpg)
DS1394U-33+T&R
Manufacturer Part Number
DS1394U-33+T&R
Description
IC RTC SPI 3WIRE W/CHRGR 10-MSOP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/Trickle-Chargerr
Datasheet
1.DS1390U-3.pdf
(26 pages)
Specifications of DS1394U-33+T&R
Time Format
HH:MM:SS:hh (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
SPI, 3-Wire Serial
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
Figure 1a. Timing Diagram—SPI Read Transfer (Mode 3)
Figure 1b. Timing Diagram—SPI Read Transfer (Mode 0)
4
CPHA = 1
CPHA = 0
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
CS
DIN
CS
t
DC
t
CC
t
CC
t
DC
W/R
W/R
t
CDH
t
CDH
t
t
CL
R
t
t
R
CL
WRITE ADDRESS BYTE
HIGH IMPEDANCE
WRITE ADDRESS BYTE
HIGH IMPEDANCE
A6
t
A6
CH
t
CH
t
F
t
F
A0
A0
t
CDD
t
CDD
D7
D7
READ DATA BYTE
READ DATA BYTE
D0
D0
t
t
CDZ
CDZ