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DS1306EN+

Description
Serial Alarm Real-Time Clock
File Size550KB,21 Pages
ManufacturerDALLAS
Websitehttp://www.dalsemi.com
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DS1306EN+ Overview

Serial Alarm Real-Time Clock

DS1306
Serial Alarm Real-Time Clock
www.maxim-ic.com
FEATURES
§
Real-Time Clock (RTC) Counts Seconds,
Minutes, Hours, Date of the Month, Month,
Day of the Week, and Year with Leap-Year
Compensation Valid Up to 2100
96-Byte, Battery-Backed NV RAM for Data
Storage
Two Time-of-Day Alarms, Programmable on
Combination of Seconds, Minutes, Hours,
and Day of the Week
1Hz and 32.768kHz Clock Outputs
Supports Motorola SPI
(Serial Peripheral
Interface) Modes 1 and 3 or Standard 3-Wire
Interface
Burst Mode for Reading/Writing Successive
Addresses in Clock/RAM
Dual-Power Supply Pins for Primary and
Backup Power Supplies
Optional Trickle Charge Output to Backup
Supply
2.0V to 5.5V Operation
Optional Industrial Temperature Range:
-40°C to +85°C
Available in Space-Efficient, 20-Pin TSSOP
Package
Underwriters Laboratory (UL) Recognized
PIN CONFIGURATIONS
V
CC2
V
BAT
X1
N.C.
X2
N.C.
INT0
INT1
1Hz
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC1
N.C.
32kHz
V
CCIF
SDO
SDI
SCLK
N.C.
CE
SERMODE
§
§
§
§
§
§
§
§
§
§
§
TSSOP (4.4mm)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC2
V
BAT
X1
X2
INT0
INT1
1Hz
GND
V
CC1
32kHz
V
CCIF
SDO
SDI
SCLK
CE
SERMODE
DIP (300 mils)
Package Dimension Information can be found at:
www.maxim-ic.com/DallasPackInfo
TYPICAL OPERATING CIRCUIT
SPI is a trademark of Motorola, Inc.
1 of 21
REV: 071105

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