TPS3600D33

TPS3600D20, TPS3600D25, TPS3600D33, TPS3600D50 BATTERYĆBACKUP SUPERVISORS FOR LOWĆPOWER PROCESSORS features D Supply Current of 40 µA (Max) D Precision Supply Voltage Monitor − 2.0 V, 2.5 V, 3.3 V, 5.0 V − Other Versions on Request D Watchdog Timer With 800-ms Time-Out D Backup-Battery Voltage Can Exceed VDD D Power-On Reset Generator With Fixed 100-ms Reset Delay Time D Battery OK Output D Voltage Monitor for Power-Fail or Low-Battery Monitoring D Manual Switchover to Battery-Backup Mode D Chip-Enable Gating −3 ns (at VDD = 5 V) Max. Propagation Delay D Manual Reset D Battery Freshness Seal D 14-Pin TSSOP Package D Temperature Range . . . −40°C to 85°C typical operating circuit SLVS336B − DECEMBER 2000 − REVISED JANUARY 2007 typical applications D Fax Machines D Set-Top Boxes D Advanced Voice Mail Systems D Portable Battery Powered Equipment D Computer Equipment D Advanced Modems D Automotive Systems D Portable Long-Time Monitoring Equipment D Point of Sale Equipment TSSOP (PW) Package (TOP VIEW) VOUT VDD GND MSWITCH CEIN BATTON PFI 1 2 3 4 5 6 7 14 VBAT 13 RESET 12 WDI 11 MR 10 CEOUT 9 BATTOK 8 PFO ACTUAL SIZE (5,10mm x 6,60mm) Power Supply 0.1 µF Address Decoder External Source Manual Reset CEIN CEOUT Backup Rx VDD VBAT TPS3600 Battery PFI Address Bus uC Ry RESET WDI PFO RESET I/O Data Bus I/O BATTOK I/O MR BATTON MSWITCH VOUT GND Switchover Capacitor 0.1 µF I/O VCC GND CE CMOS RAM VCC 8 16 CE CMOS RAM VCC 8 RealTime Clock VCC Please be aware...