year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501W DS1501W+ DS1501WE DS1501WE+ DS1501WEN DS1501WEN+ DS1501WEN/T&R DS1501WEN+T&R DS1501WE/T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C PIN-PACKAGE 28 DIP (0.600) 28 DIP (0.600) 28 TSOP 28 TSOP 28 TSOP 28 TSOP 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel TOP MARK* DS1501W DS1501W DS1501WE DS1501WE DS1501WEN DS1501WEN DS1501WEN DS1501WEN DS1501WE DS1501WE + Denotes a lead-free/RoHS-co

nd leap year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501W+ DS1501WE+ DS1501WEN+ DS1501WEN+T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C PIN-PACKAGE 28 DIP (0.600) 28 TSOP 28 TSOP 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel TOP MARK* DS1501W DS1501WE DS1501WEN DS1501WEN DS1501WE +Denotes a lead(Pb)-free/RoHS-compliant package. *A "+" anywhere on the top mark denotes a lead(Pb)-free device. An N or IND denotes an industrial temperature device. Ordering Information continued at end of data sheet. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simul

rate with 6pF or 12.6pF Crystal (DS1501) Battery Voltage-Level Indicator Flags Available as Chip (DS1501) or Stand-Alone Encapsulated DIP Module with Embedded Battery and Crystal (DS1511) Underwriters Laboratories (UL) Recognized ORDERING INFORMATION PART DS1501WE+ DS1501WEN+ DS1501WEN+T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C -40C to +85C -40C to +85C 0C to +70C PIN-PACKAGE 28 TSOP 28 TSOP 28 TSOP 28 TSOP TOP MARK* DS1501WE DS1501WEN DS1501WEN DS1501WE +Denotes a lead(Pb)-free/RoHS-compliant package. *A "+" anywhere on the top mark denotes a lead(Pb)-free device. An N or IND denotes an industrial temperature device. T&R = Tape and reel. Ordering Information continued at end of data sheet. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales

year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501W DS1501W+ DS1501WE DS1501WE+ DS1501WEN DS1501WEN+ DS1501WEN/T&R DS1501WEN+T&R DS1501WE/T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C PIN-PACKAGE 28 DIP (0.600) 28 DIP (0.600) 28 TSOP 28 TSOP 28 TSOP 28 TSOP 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel TOP MARK* DS1501W DS1501W DS1501WE DS1501WE DS1501WEN DS1501WEN DS1501WEN DS1501WEN DS1501WE DS1501WE + Denotes a lead-free/RoHS-co

year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501W DS1501W+ DS1501WE DS1501WE+ DS1501WEN DS1501WEN+ DS1501WEN/T&R DS1501WEN+T&R DS1501WE/T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C PIN-PACKAGE 28 DIP (0.600) 28 DIP (0.600) 28 TSOP 28 TSOP 28 TSOP 28 TSOP 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel TOP MARK* DS1501W DS1501W DS1501WE DS1501WE DS1501WEN DS1501WEN DS1501WEN DS1501WEN DS1501WE DS1501WE + Denotes a lead-free/RoHS-co

year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501W DS1501W+ DS1501WE DS1501WE+ DS1501WEN DS1501WEN+ DS1501WEN/T&R DS1501WEN+T&R DS1501WE/T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -40C to +85C 0C to +70C 0C to +70C PIN-PACKAGE 28 DIP (0.600) 28 DIP (0.600) 28 TSOP 28 TSOP 28 TSOP 28 TSOP 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel TOP MARK* DS1501W DS1501W DS1501WE DS1501WE DS1501WEN DS1501WEN DS1501WEN DS1501WEN DS1501WE DS1501WE + Denotes a lead-free/RoHS-co

f month and leap year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501WE+ DS1501WEN+ DS1501WEN+T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C -40C to +85C -40C to +85C 0C to +70C BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100 Programmable Watchdog Timer and RTC Alarm Century Register; Y2K-Compliant RTC +3.3 (W) or +5V (Y) Operation Precision Power-On Reset Power-Control Circuitry Support System Power-On from Date/Day/Time Alarm or Key Closure/Modem-Detect Signal 256 Bytes Battery-Backed SRAM Auxiliary Battery Input Accuracy of DS1511 Better than 1 Minute/Month at +25C Day-of-Week/Date Alarm Register Crystal Select Bit Allow RTC to Operate with 6pF or 12.6pF Crysta

nd leap year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501W+ DS1501WE+ DS1501WEN+ DS1501WEN+T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C PIN-PACKAGE 28 DIP (0.600) 28 TSOP 28 TSOP 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel TOP MARK* DS1501W DS1501WE DS1501WEN DS1501WEN DS1501WE +Denotes a lead(Pb)-free/RoHS-compliant package. *A "+" anywhere on the top mark denotes a lead(Pb)-free device. An N or IND denotes an industrial temperature device. Ordering Information continued at end of data sheet. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simul

nd leap year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501W+ DS1501WE+ DS1501WEN+ DS1501WEN+T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C 0C to +70C -40C to +85C -40C to +85C 0C to +70C PIN-PACKAGE 28 DIP (0.600) 28 TSOP 28 TSOP 28 TSOP/Tape & Reel 28 TSOP/Tape & Reel TOP MARK* DS1501W DS1501WE DS1501WEN DS1501WEN DS1501WE + Denotes a lead-free/RoHS-compliant device. * A "+" anywhere on the top mark denotes a lead-free device. An N or IND denotes an industrial temperature device. Ordering Information continued at end of data sheet. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneous

f month and leap year are made automatically. APPLICATIONS Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics Pin Configurations and Typical Operating Circuit appear at end of data sheet. ORDERING INFORMATION PART DS1501WE+ DS1501WEN+ DS1501WEN+T&R DS1501WE+T&R VOLTAGE (V) 3.3 3.3 3.3 3.3 TEMP RANGE 0C to +70C -40C to +85C -40C to +85C 0C to +70C BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100 Programmable Watchdog Timer and RTC Alarm Century Register; Y2K-Compliant RTC +3.3 (W) or +5V (Y) Operation Precision Power-On Reset Power-Control Circuitry Support System Power-On from Date/Day/Time Alarm or Key Closure/Modem-Detect Signal 256 Bytes Battery-Backed SRAM Auxiliary Battery Input Accuracy of DS1511 Better than 1 Minute/Month at +25C Day-of-Week/Date Alarm Register Crystal Select Bit Allow RTC to Operate with 6pF or 12.6pF Crysta

f month and leap year are made automatically. APPLICATIONS ORDERING INFORMATION PART DS1501YN TEMP RANGE -40C to +85C PIN-PACKAGE 28 DIP (600 mil) DS1501YEN -40C to +85C 28 TSOP DS1501YSN -40C to +85C 28 SO (330 mil) DS1501WN -40C to +85C 28 DIP (600 mil) DS1501WEN -40C to +85C 28 TSOP DS1501WSN -40C to +85C 28 SO (330 mil) 0C to +70C Remote Systems Battery-Backed Systems Telecom Switches Office Equipment Consumer Electronics DS1511Y BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100 Programmable Watchdog Timer and RTC Alarm Century Register; Y2K-Compliant RTC Automatic Battery Backup and Write Protection to External SRAM +3.3 or +5V Operation Precision Power-On Reset Power-Control Circuitry Support System PowerOn from Date/Day/Time Alarm or Key Closure/Modem-Detect Signal 256 Bytes Battery-Backed NV SRAM Auxiliary Battery Input Accuracy of DS1511 Better than 1 Minute/Month at +25C Day-of-Week/Date Alarm Register

ems Telecom Switches Office Equipment Consumer Electronics ORDERING INFORMATION PART TEMP RANGE PIN-PACKAGE DS1501YN -40C to +85C 28 DIP (600 mil) DS1501YEN -40C to +85C 28 TSOP DS1501YSN -40C to +85C 28 SO (330 mil) DS1501WN -40C to +85C 28 DIP (600 mil) DS1501WEN -40C to +85C 28 TSOP DS1501WSN -40C to +85C 28 SO (330 mil) DS1511Y 0C to +70C 28 Module (720 mil) DS1511W 0C to +70C 28 Module (720 mil) BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100 Programmable Watchdog Timer and RTC Alarm Century Register; Y2K-Compliant RTC +3.3 or +5V Operation Precision Power-On Reset Power-Control Circuitry Support System PowerOn from Date/Day/Time Alarm or Key Closure/Modem-Detect Signal 256 Bytes Battery-Backed NV SRAM Auxiliary Battery Input Accuracy of DS1511 Better than 1 Minute/Month at +25C Day-of-Week/Date Alarm Register Crystal Select Bit Allow RTC to Operate with 6pF or 12.6pF Crystal Battery Voltage-Level Indicato

DS1500W DS1500WE DS1500WEN DS1500WN DS1500Y DS1500YE DS1500YEN DS1500YN 3.3 volt 3.3 volt 3.3 volt 3.3 volt 5 volt 5 volt 5 volt 5 volt DS1501 28-Pin DIP 28-Pin TSOP 28-Pin TSOP 28-Pin DIP 28-Pin SOIC 0 to 70 0 to 70 -40 to +85 -40 to +85 0 to 70 DS1501W DS1501WE DS1501WEN DS1501WN DS1501WS 3.3 volt 3.3 volt 3.3 volt 3.3 volt 3.3 volt DS14287 28-Pin SOIC 28-Pin DIP 28-Pin TSOP 28-Pin TSOP 28-Pin DIP 28-Pin SOIC 28-Pin SOIC -40 to +85 0 to 70 0 to 70 -40 to +85 -40 to +85 0 to 70 -40 to +85 DS1501WSN DS1501Y DS1501YE DS1501YEN DS1501YN DS1501YS DS1501YSN 3.3 volt 5 volt 5 volt 5 volt 5 volt 5 volt 5 volt DS1510 32-PIN Encap. DIP 32-PIN Encap. DIP 0 to 70 0 to 70 DS1510W DS1510Y 3.3 volt 5 volt DS1511 28-PIN Encap. DIP 28-PIN Encap. DIP 0 to 70 0 to 70 DS1511W DS1511Y 3.3 volt 5 volt DS1543 28-Pin Encap. DIP 28-Pin Encap. DIP 34-Pin PowerCap 34-Pin PowerCap 28-Pin Encap. DIP 28-Pin Encap. DIP 34-Pin PowerCap 34-Pin PowerCap 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to

DIP 28-Pin TSOP 28-Pin TSOP 28-Pin DIP 28-Pin SOIC 28-Pin SOIC 28-Pin DIP 28-Pin TSOP 28-Pin TSOP 28-Pin DIP 28-Pin SOIC 28-Pin SOIC 0 to 70 0 to 70 -40 to +85 -40 to +85 0 to 70 -40 to +85 0 to 70 0 to 70 -40 to +85 -40 to +85 0 to 70 -40 to +85 DS1501W DS1501WE DS1501WEN DS1501WN DS1501WS DS1501WSN DS1501Y DS1501YE DS1501YEN DS1501YN DS1501YS DS1501YSN 3.3 volt 3.3 volt 3.3 volt 3.3 volt 3.3 volt 3.3 volt 5 volt 5 volt 5 volt 5 volt 5 volt 5 volt DS1510 32-PIN Encap. DIP 32-PIN Encap. DIP DS1510W DS1510Y 3.3 volt 5 volt DS14287 0 to 70 0 to 70 DS14285 DS14285N DS14285Q DS14285QN DS14285S DS14285SN DS14287 DS1511 28-PIN Encap. DIP 28-PIN Encap. DIP 0 to 70 0 to 70 DS1511W DS1511Y 3.3 volt 5 volt DS1543 28-Pin Encap. DIP 28-Pin Encap. DIP 34-Pin PowerCap 34-Pin PowerCap 28-Pin Encap. DIP 28-Pin Encap. DIP 34-Pin PowerCap 34-Pin PowerCap 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 DS1543-100 DS1543-70 DS1543P-100 DS1543P-70 DS1543W-120 DS1543W-150 DS1543WP-120 DS1

to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 0 to 70 -40 to +85 -40 to +85 0 to 70 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -55 to +125 -55 to +125 -55 to +125 -55 to +125 -55 to +125 DS1501YS DS1501YSN DS1501W DS1501WN DS1501WE DS1501WEN DS1501WS DS1501WSN DS1510W DS1510Y DS1511Y DS1511W DS1543-70 DS1543-100 DS1543P-70 DS1543P-100 DS1543W-120 DS1543W-150 DS1543WP-120 DS1543WP-150 DS1553-70 DS1553-100 DS1553P-70 DS1553P-100 DS1553W-120 DS1553W-150 DS1553WP-120 DS1553WP-150 DS1602 DS1602S DS1603 DS1615 DS1615S DS1616 DS1616S DS1620 DS1620S DS1621 DS1621S DS1621V 1/31/02 2:55 PM 5 Volt 5 Volt 3.3 Volt 3.3 Volt 3.3 Volt 3.3 Volt 3.3 Volt 3.3 Volt 3.3 Volt 5 Volt 5 Volt 3.3 Volt 5 Volt, 70 ns 5 Volt, 100 ns 5 Volt, 70 ns 5 Volt, 100 ns 3.3 Volt, 120 ns 3.3 Volt, 150 ns 3.3 Volt, 120 ns 3.3 Volt, 150 ns 5 Volt, 70 ns 5 Volt, 100 ns 5 Volt, 70 ns 5 Volt, 100 ns 3.3 Volt, 120 ns 3.3 Volt, 150 ns 3.3 Volt, 120 ns 3.3 Volt, 150 ns DS1624 DS1629 DS1631 DS163