Data Sheets for DS13xx TimeClocks

Information is from www.maxim-ic.com

DS1302 - 3-Wire Trickle-Charge Timekeeping Chip
DS1305 - 3-Wire/SPI Serial Interface Trickle Charge Real-Time Clock with Alarms
DS1306 - 3-Wire/SPI Serial Alarm Real-Time Clock
DS1307 - 64 x 8, Serial, I²C Real-Time Clock
DS1308 - Low-Current I²C RTC with 56-Byte NV RAM
DS1312 - Nonvolatile Controller with Lithium Battery Monitor
DS1314 - 3V Nonvolatile Controller with Lithium Battery Monitor
DS1315 - Phantom Time Chip
DS1318 - Parallel-Interface Elapsed Time Counter
DS1321 - Flexible Nonvolatile Controller with Lithium Battery
DS1323 - 3.3V Flexible Nonvolatile Controller with Lithium Battery Monitor
DS1330AB - 256k Nonvolatile SRAM with Battery Monitor
DS1330W - 3.3V 256k Nonvolatile SRAM with Battery Monitor
DS1330Y - 256k Nonvolatile SRAM with Battery Monitor
DS1336 - Afterburner Chip - End of Life
DS1337 - I²C Serial Real-Time Clock
DS1338 - I²C RTC with 56-Byte NV RAM
DS1339 - I²C Serial Real-Time Clock
DS1340 - I²C RTC with Trickle Charger
DS1341 - Low-Current I²C RTCs for High-ESR Crystals
DS1342 - Low-Current I²C RTCs for High-ESR Crystals
DS1343 - Low-Current SPI/3-Wire RTCs
DS1344 - Low-Current SPI/3-Wire RTCs
DS1345AB - 1024k Nonvolatile SRAM with Battery Monitor
DS1345W - 3.3V 1024k Nonvolatile SRAM with Battery Monitor
DS1345Y - 1024k Nonvolatile SRAM with Battery Monitor
DS1346 - Low-Current, SPI-Compatible Real-Time Clocks
DS1347 - Low-Current, SPI-Compatible Real-Time Clocks
DS1350AB - 4096k Nonvolatile SRAM with Battery Monitor
DS1350W - 3.3V 4096K Nonvolatile SRAM with Battery Monitor
DS1350Y - I²C, 32-Bit Binary Counter Watchdog Clock
DS1371 - I²C, 32-Bit Binary Counter Watchdog Clock
DS1374 - I²C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
DS1375 - I²C Digital Input RTC with Alarm
DS1384 - Watchdog Real Time Clocks Controller
DS1386 - RAMified Watchdog Timekeeper - End of Life
DS1386P - RAMified Watchdog Timekeeper - End of Life

App Note 58: Crystal Considerations with Dallas Real-Time Clocks (RTCs)
App Note 82: Using the Dallas Tricklecharge Timekeeper
App Note 505: Lithium Coin-Cell Batteries: Predicting an Application Lifetime

oh my God what is this....i can't understand really

It's an old thread with HTML (web page commands) which is no longer accepted on the forum.

Robert