YSN1307

The YSN1307 is a low-power, binary-coded decimal (BCD) clock/calendar with 56 bytes of non-volatile SRAM (NVSRAM). Address and data are transferred serially through an I²C bus. It provides seconds, minutes, hours, day, date, month, and year, with automatic end-of-month and leap-year correction. A power-sense circuit switches to the backup supply when the primary supply fails.
(PS: Brief datasheet only. Contact us for full specifications. )  

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Parameter Table
Sample
Specifications : 
Parameter Specification
Package SOP-8
Supply Voltage 4.5~5.5 V
Temperature Stability Depends on External Crystal
Built-in Crystal No
Interface I²C 
Operating Temperature -40°C to +85°C

Features:

  • ♦ I²C serial bus interface 
  • ♦ 56 bytes of NVSRAM with battery backup 
  • ♦ Clocks seconds, minutes, hours, day, date, month, and year 
  • ♦ Automatic end-of-month and leap-year correction 
  • ♦ 24-hour or 12-hour format with AM/PM indicator 
  • ♦ Square-wave output: 1Hz, 4.096kHz, 8.192kHz, and 32.768kHz 
  • ♦ Automatic power-fail detection and switchover 
  • ♦ Low standby current: 200μA max at Vcc = 5V 
  • ♦ Battery-backed current below 500nA with the oscillator running 
  • ♦ I²C-bus slave address: 1101000 
  • ♦ Supply voltage 4.5 V to 5.5 V; V_BAT 2.0 V to 3.5 V 
  • ♦ Operating temperature: -40°C to +85°C 

Pin Description:

 

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Voltage : 4.5~5.5V

Frequency : /

Dimension : SOP-8

Operating Temp : -40℃~+85℃

Frequency Tolerance : Depends on the external crystal

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