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DS1306EN Datasheet(PDF) 1 Page - Dallas Semiconductor |
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DS1306EN Datasheet(HTML) 1 Page - Dallas Semiconductor |
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1 / 20 page  1 of 20 070900 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 PIN DESCRIPTION VCC1 – Primary Power Supply VCC2 – Backup Power Supply VBAT – +3V Battery Input VCCIF – Interface Logic Power Supply Input GND – Ground X1, X2 – 32.768 kHz Crystal Connection INT0 – Interrupt 0 Output INT1 – Interrupt 1 Output SDI – Serial Data In SDO – Serial Data Out CE – Chip Enable SCLK – Serial Clock SERMODE – Serial Interface Mode 1 Hz - 1 Hz Output 32 kHz - 32.768 kHz Output DS1306 Serial Alarm Real Time Clock (RTC) www.dalsemi.com DS1306 20-Pin TSSOP (173 mil) VCC2 VBAT X1 NC X2 NC INT0 INT1 1 Hz GND VCC1 NC 32 kHz VCCIF SDO SDI SCLK NC CE SERMODE 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 VCC2 DS1306 16-Pin DIP (300 mil) 15 X1 INT0 1 Hz GND VCC1 SDO SDI SCLK CE SERMODE 1 2 3 4 5 6 7 8 16 14 13 12 11 10 9 VBAT X2 INT1 32 kHz VCCIF |
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