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Part Number and Description Time Format
(hh = 1/100 sec)		 Date Format Bus Type Op. Temp Range Supply Voltage (V) NV RAM (Bytes) Features Package
DS1558 Watchdog Clock with NV RAM Control HH:MM:SS YYYY-MM-DD Bytewide -40° to +85° 3.3
5		 - • Time of Day Alarm
• Periodic Interrupt
• µP Reset
• Power Fail Output		 48/TQFP-7x7
DS12885 Real Time Clock HH:MM:SS YY-MM-DD Multiplexed 0° to +70° 5 114 • Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 24/PDIP.600
24/SO.300
28/PLCC
32/TQFP-7x7
DS1746 Y2KC Nonvolatile Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 128k • Battery + Crystal
• PowerCap Package		 32/EDIP.740a
34/PwrCap
DS1744 Y2KC Nonvolatile Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 32k • Battery + Crystal
• PowerCap Package		 28/EDIP.740a
34/PwrCap
DS1743 Y2KC Nonvolatile Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 8k • Battery + Crystal
• PowerCap Package		 28/EDIP.740a
34/PwrCap
DS1742 Y2KC Nonvolatile Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 2k • Battery + Crystal 24/EDIP.700
DS17287 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 2k • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/EDIP.740
DS17285 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 2k • Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/PDIP.600
24/SO.300
28/TSOP
DS1693 3V/5V Serialized Real Time Clock with NV RAM Control HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 114 • Battery + Crystal
• VCC Active Counter
• Power Cycle Counter
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 28/EDIP.740b
DS1691 3 V/5V Serialized Real Time Clock with NV RAM Control HH:MM:SS YYYY-MM-DD Multiplexed 0° to +70° 3
5		 114 • VCC Active Counter
• Power Cycle Counter
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 28/EDIP.740b
DS1689 3V/5V Serialized Real Time Clock with NV RAM Control HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 114 • Battery + Crystal
• VCC Active Counter
• Power Cycle Counter
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 28/PDIP.600
28/SO.300
DS1688 3V/5V Serialized Real Time Clock with NV RAM Control HH:MM:SS YYYY-MM-DD Multiplexed 0° to +70° 3
5		 114 • VCC Active Counter
• Power Cycle Counter
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 28/PDIP.600
28/SO.330
DS1687 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 242 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/EDIP.700
DS1685 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 242 • Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/PDIP.600
24/SO.300
24/TSSOP
28/PLCC
DS1216C SmartWatch/RAM HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 5 8k Ext.
32k Ext.		 • Battery + Crystal 28/I-SKT
DS1647 Nonvolatile Timekeeping RAM HH:MM:SS YY-MM-DD Bytewide 0° to +70° 5 512k • PowerCap Package 32/EDIP.740d
34/PwrCap
DS1646 Nonvolatile Timekeeping RAM HH:MM:SS YY-MM-DD Bytewide 0° to +70° 5 128k • Battery + Crystal
• PowerCap Package		 32/EDIP.740a
34/PwrCap
DS1644 Nonvolatile Timekeeping RAM HH:MM:SS YY-MM-DD Bytewide 0° to +70° 5 32k • Battery + Crystal
• PowerCap Package		 28/EDIP.720a
34/PwrCap
DS1643 Nonvolatile Timekeeping RAM HH:MM:SS YY-MM-DD Bytewide 0° to +70° 5 8k • Battery + Crystal
• PowerCap Package		 28/EDIP.740a
34/PwrCap
DS1642 Nonvolatile Timekeeping RAM HH:MM:SS YY-MM-DD Bytewide 0° to +70° 5 2k • Battery + Crystal 24/EDIP.700
DS1557 4MEG NV Y2KC Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 512k • PowerCap Package
• Time of Day Alarm
• Periodic Interrupt
• µP Reset		 34/PwrCap
DS1556 1MEG NV Y2KC Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 128k • Battery + Crystal
• PowerCap Package
• Time of Day Alarm
• Periodic Interrupt
• µP Reset		 32/EDIP.740a
34/PwrCap
DS1248 1024K NV SRAM with Phantom Clock HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 -40° to +85°
0° to +70°		 3.3
5		 128k • PowerCap Package 32/EDIP.740d
34/PwrCap
DS1553 64K NV Y2KC Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 8k • Battery + Crystal
• PowerCap Package
• Time of Day Alarm
• Periodic Interrupt
• µP Reset		 28/EDIP.740a
34/PwrCap
DS1543 64K NV Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 5 8k • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• µP Reset		 28/EDIP.740a
DS1511 Y2KC Watchdog Real Time Clock HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 256 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• µP Reset
• Square-Wave Output		 28/EDIP.720a
DS1501 Y2KC Watchdog Real Time Clock HH:MM:SS YYYY-MM-DD Bytewide -40° to +85°
0° to +70°		 3.3
5		 256 • Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• µP Reset
• Square-Wave Output		 28/PDIP.600
28/SOIC.330
28/TSOP
DS1500 Y2KC Watchdog RTC with NV Control HH:MM:SS YYYY-MM-DD Bytewide -40° to +85°
0° to +70°		 3.3
5		 256 • Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• µP Reset
• Square-Wave Output		 32/PDIP.600
32/TSOP
DS1486 RAMified Watchdog Timekeeper HH:MM:SS:hh YY-MM-DD Bytewide 0° to +70° 5 128k • Battery + Crystal
• PowerCap Package
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 32/EDIP.740d
34/PwrCap
DS14287 Real Time Clock with NVRAM Control HH:MM:SS YY-MM-DD Multiplexed 0° to +70° 5 114 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 24/EDIP.700
DS14285 Real Time Clock with NV RAM Control HH:MM:SS YY-MM-DD Multiplexed -40° to +85°
0° to +70°		 5 114 • Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 24/PDIP.600
24/SO.300
28/PLCC
DS1386 RAMified Watchdog Timekeeper HH:MM:SS:hh YY-MM-DD Bytewide 0° to +70° 5 8k
32k		 • Battery + Crystal
• PowerCap Package
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 32/EDIP.740d
34/PwrCap
DS1384 Watchdog Timekeeping Controller HH:MM:SS:hh YY-MM-DD Bytewide 0° to +70° 5 50 • Time of Day Alarm
• Power Fail Output
• Square-Wave Output
• NV SRAM Control
• Watchdog Timekeeper		 44/QFP-10x10
DS9034PCX Clip-On Cap for Power-Cap Devices - - - -40° to +85° - - • Battery + Crystal
• PowerCap Package		 PwrCapXtal
DS1216H SmartWatch/RAM HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 5 128k Ext.
512k Ext.		 • Battery + Crystal 32/I-SKT
DS1286 Watchdog Timekeeper HH:MM:SS:hh YY-MM-DD Bytewide 0° to +70° 5 50 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 28/EDIP.720a
DS1216F SmartWatch/ROM 64K HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 5 8k ROM Ext.
32k ROM Ext.
128k ROM Ext.		 • Battery + Crystal 32/I-SKT
DS1284 Watchdog Timekeeper Chip HH:MM:SS:hh YY-MM-DD Bytewide 0° to +70° 5 50 • Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 28/PDIP.600
28/PLCC
DS1254 2M x 8 NV SRAM with Phantom Clock HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 3.3
5		 2M • PowerCap Package 168/BGA-40x40
DS1315 Phantom Time Chip HH:MM:SS:hh YY-MM-DD Phantom 0° to +70° 3.3
5		 - • NV SRAM Control 16/PDIP.300
16/SOIC.300
20/TSSOP
DS1251 4096K NV SRAM with Phantom Clock HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 -40° to +85°
0° to +70°		 3.3
5		 512k • PowerCap Package 32/EDIP.740d
34/PwrCap
DS1216B SmartWatch/RAM HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 5 2k Ext.
8k Ext.		 • Battery + Crystal
• NV SRAM Control		 28/I-SKT
DS12C887A Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed 0° to +70° 5 113 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 24/EDIP.700
DS12C887 Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed 0° to +70° 5 113 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 24/EDIP.700
DS12887A Real Time Clock HH:MM:SS YY-MM-DD Multiplexed 0° to +70° 5 114 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 24/EDIP.700
DS12887 Real Time Clock HH:MM:SS YY-MM-DD Multiplexed 0° to +70° 5 114 • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Square-Wave Output		 24/EDIP.700
DS17885 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 8k • Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/PDIP.600
24/SO.300
28/TSOP
DS1554 256K NV Y2KC Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 32k • Battery + Crystal
• PowerCap Package
• Time of Day Alarm
• Periodic Interrupt
• µP Reset		 32/EDIP.740a
34/PwrCap
DS3800 Advanced NV SRAM Battery Cap for DS1254 - - - - - - • PowerCap Package -
DS1216E SmartWatch/ROM 64K HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 5 8k ROM Ext.
32k ROM Ext.		 • Battery + Crystal 28/I-SKT
DS1244 256K NV SRAM with Phantom Clock HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 3.3
5		 32k • PowerCap Package 28/EDIP.740b
34/PwrCap
DS1243 64K NV SRAM with Phantom Clock HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 5 8k • Battery + Crystal 28/EDIP.720b
DS17485 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 4k • Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/PDIP.600
24/SO.300
28/TSOP
DS17887 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 8k • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/EDIP.740
DS1216D SmartWatch/RAM HH:MM:SS:hh YY-MM-DD Bytewide
Phantom Clock		 0° to +70° 5 8k Ext.
32k Ext.
128k Ext.		 • Battery + Crystal
• NV SRAM Control		 32/I-SKT
DS1747 Y2KC Nonvolatile Timekeeping RAM HH:MM:SS YYYY-MM-DD Bytewide 0° to +70° 3.3
5		 512k • Battery + Crystal
• PowerCap Package
• NV Timekeeping RAM		 32/EDIP.740d
34/PwrCap
DS17487 3V/5V Real Time Clock HH:MM:SS YYYY-MM-DD Multiplexed -40° to +85°
0° to +70°		 3
5		 4k • Battery + Crystal
• Time of Day Alarm
• Periodic Interrupt
• Wake-up
• Kick-Start
• RAM Clear Interrupt
• Square-Wave Output
• Serial Number		 24/EDIP.740





 
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