DS1306 Ver la hoja de datos (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS1306 Datasheet PDF : 20 Pages
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DS1306
Serial Alarm Real Time Clock (RTC)
www.dalsemi.com
FEATURES
Real time clock 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 nonvolatile RAM for data storage
Two Time of Day Alarms - programmable on
combination of seconds, minutes, hours, and
day of the week
1 Hz and 32.768 kHz clock outputs
Serial interface supports Motorola Serial
Peripheral Interface (SPI) serial data ports 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
2.0 - 5.5V operation
Optional industrial temperature range
-40°C to +85°C
Available in space-efficient 20-pin TSSOP
package
Recognized by Underwriters Laboratory
ORDERING INFORMATION
DS1306
16-Pin DIP
DS1306N
16-Pin DIP (Industrial)
DS1306E
20-Pin TSSOP
DS1306EN
20-Pin TSSOP (Industrial)
PIN ASSIGNMENT
VCC2
VBAT
X1
NC
X2
NC
INT0
INT1
1 Hz
GND
1
20
VCC1
2
19
NC
3
18
32 kHz
4
17
VCCIF
5
16
SDO
6
15
SDI
7
14
SCLK
8
13
NC
9
12
CE
10
11
SERMODE
DS1306 20-Pin TSSOP (173 mil)
VCC2
1
VBAT
2
X1 3
X2 4
INT0 5
INT1 6
1 Hz 7
GND 8
16
VCC1
15 32 kHz
14
VCCIF
13 SDO
12 SDI
11 SCLK
10 CE
9 SERMODE
DS1306 16-Pin DIP (300 mil)
PIN DESCRIPTION
VCC1
VCC2
VBAT
VCCIF
– Primary Power Supply
– Backup Power Supply
– +3V Battery Input
– Interface Logic Power Supply
Input
GND
– Ground
X1, X2
– 32.768 kHz Crystal Connection
INT0
INT1
SDI
SDO
CE
SCLK
SERMODE
1 Hz
32 kHz
– Interrupt 0 Output
– Interrupt 1 Output
– Serial Data In
– Serial Data Out
– Chip Enable
– Serial Clock
– Serial Interface Mode
- 1 Hz Output
- 32.768 kHz Output
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070900
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