D a l l a s Semiconductor Clocks, Counters and PowerCap http://www.dalsemi.com/ Visit Dallas SemiconductorOs web site to learn about their latest products. Data sheets, technical support and new product announcements make this an indispensable source of information. Data Sheet Faxback: (972) 371-4441 To obtain data sheets, call Dallas SemiconductorOs Faxback, the 24-hour automated data sheet delivery system. Dallas Semiconductor Literature Center: (972) 371-4448 To obtain the latest data books, call the literature center. Dallas Semiconductor Customer Support Center: (972) 371-4167 To obtain technical support, call the support center. Voice support is available 8:00 AM to 5:00 PM (CST). Real-Time Clocks and Elapsed Time Counters with Serial Interfaces Serial interface clocks provide 4-, 3-, or 2-wire solutions for systems requiring small real time clocks. Real-Time Clocks Mfr.'s Type No. of Pins DS1302 DS1305 DS1305E DS1307 DS1603 DS1670E 8 16 20 8 7 20 Package* Description DIP DIP TSSOP DIP SIP Mod. TSSOP RTC, 3-wire Interface, 31 Bytes RAM, Trickle Charger RTC, 3-, 4-wire Interface, 96 Bytes RAM, Trickle Charger, 2 Time-of-Day Alarms RTC, 3-, 4-wire Interface, 96 Bytes RAM, Trickle Charger, 2 Time-of-Day Alarms RTC, 2-wire Interface, 56 Bytes RAM 2 Counters, 3-wire Interface RTC, 3-wire Interface, CPU Reset, Watchdog, NV RAM Control, Time-of-Day Alarm, 8-Bit A/D, 3 V Real-Time Clocks with Bytewide Interface Bytewide interface clocks provide additional general-purpose RAM. Accept SRAMs or ROMs or densities indicated. Phantom interface clocks are transparent to the system until a particular 64-bit data sequence has been recognized. DS1243Y DS1243Y-120 DS1244Y DS1244Y-120 DS1244Y-150 DS1248Y-100 DS1251Y-100 DS1642-100 DS1643-100 DS1646L-120 DS1742-100 DS1744-100 DS1744W-120 DS1746-100 DS1746W-120 DS1747W-120 28 28 28 28 28 32 32 24 28 34 28 28 28 32 32 32 Available in PowerCap except DS1742. Module Module Module Module Module Module Module Module Module LPM Module Module Module Module Module Module 8 KB RAM, Phantom Interface for RTC 8 KB RAM, Phantom Interface for RTC 32 KB RAM, Phantom Interface for RTC 32 KB RAM, Phantom Interface for RTC 32 KB RAM, Phantom Interface for RTC 128 KB RAM, Phantom Interface for RTC 512 KB RAM, Phantom Interface for RTC 2 KB RAM 8 KB RAM 128 KB RAM 2 KB RAM 32 KB RAM 32 KB RAM 128 KB RAM 128 KB RAM 128 KB RAM Watchdog Timekeepers with Bytewide Interface Watchdog Timekeepers provide, time-of-day alarm and microprocessor reset. Available in PowerCap except DS1501 and DS1511. DS1286 DS1386-32-120 DS1501W DS1501Y DS1511W DS1511Y DS1543-100 DS1543W-120 DS1553-100 DS1553W-120 DS1554-100 DS1554W-120 DS1556-100 DS1556W-120 DS1557P-100 DS1557WP-120 13 28 32 28 28 28 28 28 28 28 28 32 32 32 32 34 34 Module Module DIP/TSOP/SOIC DIP/TSOP/SOIC Module Module Module Module Module Module Module Module Module Module Power Cap Power Cap 50 Bytes RAM, Time of Day Alarm 32 KB RAM, Time of Day Alarm 256 Bytes RAM, KS, WU, 3.3 V, Y2K 256 Bytes RAM, KS, WU, 5 V, Y2K 256 Bytes RAM, KS, WU, 3.3 V, Y2K 256 Bytes RAM, KS, WU, 5 V, Y2K 8 KB RAM 8 KB RAM 8 KB RAM 8 KB RAM 32 KB RAM 32 KB RAM 128 KB RAM 128 KB RAM 512 KB RAM 512 KB RAM Real-Time Clocks with Multiplexed Address/Data Bus Multiplexed address/data bus clocks provide time-of-day alarm, programmable square wave output and a programmable interrupt output in addition to clock and calendar. DS12887 DS14287 DS1693 DS17287-5 DS17487-3 DS17887-5 24 24 28 24 24 24 Module Module Module Module Module Module 114 Bytes RAM 114 Bytes RAM, NV RAM Control 114 Bytes RAM, NV RAM Cont., KS, S/N, WU, VBAUX 114+ 2 KB RAM, KS, S/N, WU, VBAUX, 5 V 114+ 4 KB RAM, KS, S/N, WU, VBAUX, 3 V 114+ 4 KB RAM, KS, S/N, WU, VBAUX, 5 V 28 32 28 28 32 32 32 Socket Socket Socket Socket Socket Socket Socket RAM: 8 KB, 32 KB RAM: 8 KB, 32 KB, 128 KB ROM: 8 KB, 32 KB ROM: 8 KB, 32 KB, 3 V ROM: 8 KB, 32 KB, 128 KB ROM: 8 KB, 32 KB, 128 KB, 3 V RAM: 512 KB Sockets with Real Time Clocks DS1216C DS1216D DS1216E DS1216E-3 DS1216F DS1216F-3 DS1216H *All modules contain 32.768 KHz crystal and embedded lithium energy source. DS9034PC PowerCap The DS9034PC PowerCap is a snap-on lithium power source which provides 10 years of battery backup power for Nonvolatile SRAMs in Dallas SemiconductorOs surface-mountable PowerCap Module (PCM) package. After a PowerCap Module has been soldered in place, the DS9034PC PowerCap is snapped onto the PCM to form a complete Nonvolatile SRAM module. The PowerCap is keyed to prevent incorrect attachment and is designed to maintain mechanical and electrical contact with its host PowerCap Module even during severe mechanical shock and vibration. Periodic replacement allows Nonvolatile SRAM module life to be extended indefinitely. The DS9034PC is easily removed by inserting a regular screwdriver into the detachment feature and prying gently outward and upward to release the PowerCap from the PCM board. To be used with Mfr.Os Type N DS1230YP-70, DS1245YP-70, DS1250YP-70, DS1230WP-150, DS1245WP-150, DS1250WP-150, DS1330WP-150, DS1345-150, DS1350WP-150. See next page for information on these devices. Mfr.Os Type Nominal Voltage Nominal Capacity Data Retention Life DS9034PC 3V 130 mAH 10 Years (25C) 806 b ALLIED Call Your Nearest Allied Location (1-800-433-5700) For Quick Service