DS1391U-3 Maxim Integrated Products, DS1391U-3 Datasheet - Page 21
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DS1391U-3
Manufacturer Part Number
DS1391U-3
Description
Real Time Clock Low-Voltage SPI RTC with Trickle Charger
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1390U-3.pdf
(26 pages)
Specifications of DS1391U-3
Function
Clock, Calendar, Alarm, Trickle Charger
Supply Voltage (max)
3.3 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial
Package / Case
uSOP
Time Format
HH:MM:SS:hh
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Manufacturer
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Price
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Part Number:
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Quantity:
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Figure 10. SPI Single-Byte Write
Figure 11. SPI Single-Byte Read
(MODE 0)
(MODE 0)
(MODE 1)
(MODE 1)
DOUT
DOUT
SCLK
SCLK
SCLK
SCLK
DIN
DIN
CS
CS
W/R
W/R
A6
A6
A5
A5
HIGH IMPEDANCE
Low-Voltage SPI/3-Wire RTCs with
A4
A4
____________________________________________________________________
A3
A3
A2
A2
A1
A1
HIGH IMPEDANCE
A0
A0
D7
D7
D6
D6
D5
D5
Trickle Charger
D4
D4
D3
D3
D2
D2
D1
D1
D0
D0
21