Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Part Status Type Mount Mounting Type Operating Temperature Packaging Moisture Sensitivity Level (MSL) Technology Frequency Height Seated (Max) RoHS Status Published Datasheet Package / Case Length Height Width Operating Supply Voltage Lead Free Number of Terminations REACH SVHC Number of Pins Interface Pbfree Code ECCN Code Additional Feature Contact Plating Radiation Hardening Reach Compliance Code HTS Code JESD-609 Code Feature Terminal Finish Surface Mount Voltage - Supply Terminal Position Peak Reflow Temperature (Cel) Supply Voltage Terminal Pitch Base Part Number Pin Count Time@Peak Reflow Temperature-Max (s) Subcategory Power Supplies Qualification Status JESD-30 Code Memory Size Number of Bits Logic Function Number of Timers Access Time Clock Frequency Time-Min External Data Bus Width Time Format Interrupt Capability Volatile Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
DS1251WP-120 DS1251WP-120 Maxim Integrated
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0 0x0x0 download Phantom Time Chip Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS 120GHz Non-RoHS Compliant 2005 /files/maximintegrated-ds1251w120-datasheets-9993.pdf 34-PowerCap™ Module 3.3V Contains Lead 34 34 Parallel no 3A991.B.2.A No 8473.30.11.40 e0 Leap Year, NVSRAM TIN LEAD 2.97V~3.63V DUAL 3.3V DS1251 34 Timer or RTC 512KB Clock 120 ns 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 7mA @ 3.3V 3V
DS1556W-120IND DS1556W-120IND Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole -40°C~85°C Tube 1 (Unlimited) CMOS 10.922mm Non-RoHS Compliant 2005 /files/maximintegrated-ds155670-datasheets-9871.pdf 32-DIP Module (0.600, 15.24mm) 43.053mm 15.24mm Contains Lead 32 Parallel EAR99 not_compliant 8473.30.11.80 e0 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tin/Lead (Sn/Pb) NO 2.97V~3.63V DUAL 240 3.3V 2.54mm DS1556 32 NOT SPECIFIED Timer or RTC 3.3V Not Qualified R-PDMA-P32 128KB 0.032MHz SECONDS 8 HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 4mA @ 3.3V
DS1248W-120 DS1248W-120 Maxim Integrated
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0 0x0x0 download Phantom Time Chip Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS 120GHz 10.922mm Non-RoHS Compliant 2012 /files/maximintegrated-ds1248y70-datasheets-0298.pdf 32-DIP Module (0.600, 15.24mm) 43.053mm 15.24mm 3.3V Contains Lead 32 32 Parallel yes 3A991.B.2.A No 8473.30.11.40 e3 NVSRAM Matte Tin (Sn) 2.97V~3.63V DUAL 260 3.3V 2.54mm DS1248 32 Timer or RTC 128KB Clock 120 ns 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 7mA @ 3.3V
DS1248W-120IND DS1248W-120IND Maxim Integrated
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0 0x0x0 download Phantom Time Chip Through Hole Through Hole -40°C~85°C Tube 1 (Unlimited) CMOS 120GHz 10.922mm Non-RoHS Compliant 2005 /files/maximintegrated-ds1248y70-datasheets-0298.pdf 32-DIP Module (0.600, 15.24mm) 43.053mm 15.24mm 3.3V Contains Lead 32 32 Parallel 3A991.B.2.A No 8473.30.11.40 e0 NVSRAM Tin/Lead (Sn/Pb) 2.97V~3.63V DUAL 240 3.3V 2.54mm DS1248 32 Timer or RTC 128KB Clock 120 ns 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 7mA @ 3.3V
1338C-18SRI8 1338C-18SRI8 Renesas Electronics America
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 3 (168 Hours) Non-RoHS Compliant /files/renesaselectronicsamericainc-1338c31sri-datasheets-3959.pdf 16-SOIC (0.295, 7.50mm Width) I2C, 2-Wire Serial Leap Year, NVSRAM, Square Wave Output 3.3V~5.5V IDT1338 56B HH:MM:SS (12/24 hr) YY-MM-DD-dd 2μA @ 3.3V 1.3V~3.7V
DS1251YP-70 DS1251YP-70 Maxim Integrated
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0 0x0x0 download Phantom Time Chip Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS 70GHz Non-RoHS Compliant 2005 /files/maximintegrated-ds1251w120-datasheets-9993.pdf 34-PowerCap™ Module 5V Contains Lead 34 34 Parallel EAR99 No 8542.39.00.01 e0 Leap Year, NVSRAM TIN LEAD 4.5V~5.5V DUAL 5V DS1251 34 Timer or RTC 5V 512KB Clock 70 ns 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 10mA @ 5V 3V
DS1747-70 DS1747-70 Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS Non-RoHS Compliant 2005 /files/maximintegrated-ds174770-datasheets-9739.pdf 32-DIP Module (0.600, 15.24mm) 44.2mm 10.92mm 18.8mm 5V Contains Lead 32 Unknown 32 Parallel yes EAR99 No 8473.30.11.80 e3 Leap Year, NVSRAM, Y2K Matte Tin (Sn) 4.5V~5.5V DUAL 260 5V 2.54mm DS1747 32 Timer or RTC 5V 512KB Clock SECONDS HH:MM:SS (24 hr) N NO YY-MM-DD-dd 4mA @ 5V
DS1557P-70 DS1557P-70 Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2005 /files/maximintegrated-ds1557wp120-datasheets-1912.pdf 34-PowerCap™ Module 5V Contains Lead 34 34 Parallel yes EAR99 No 8473.30.11.80 e3 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Matte Tin (Sn) 4.5V~5.5V DUAL 5V DS1557 34 Timer or RTC 5V 512KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 6mA @ 5V 3V
DS1744W-120IND DS1744W-120IND Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole -40°C~85°C Tube 1 (Unlimited) CMOS Non-RoHS Compliant 2006 /files/maximintegrated-ds174470-datasheets-9961.pdf 28-DIP Module (0.600, 15.24mm) 25.27mm 810μm 23.62mm 3.3V Contains Lead 28 Unknown 28 Parallel no EAR99 Tin No 8473.30.11.80 e0 Leap Year, NVSRAM, Y2K 2.97V~3.63V DUAL 240 3.3V 2.54mm DS1744 28 Timer or RTC 32KB Clock 0.032MHz SECONDS HH:MM:SS (24 hr) N NO YY-MM-DD-dd 2mA @ 3.3V
DS1251Y-70 DS1251Y-70 Maxim Integrated
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0 0x0x0 download Phantom Time Chip Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS 10.922mm Non-RoHS Compliant 2005 /files/maximintegrated-ds1251w120-datasheets-9993.pdf 32-DIP Module (0.600, 15.24mm) 43.053mm 15.24mm Contains Lead 32 Parallel no 3A991.B.2.A not_compliant 8473.30.11.40 e0 Leap Year, NVSRAM Tin/Lead (Sn/Pb) NO 4.5V~5.5V DUAL 245 5V 2.54mm DS1251 32 NOT SPECIFIED Timer or RTC 5V Not Qualified R-PDIP-P32 512KB 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 10mA @ 5V
DS1746P-70IND DS1746P-70IND Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2005 https://pdf.utmel.com/r/datasheets/maximintegrated-ds174670-datasheets-9700.pdf 34-PowerCap™ Module 5V Contains Lead 34 34 Parallel EAR99 No 8473.30.11.80 e0 Leap Year, NVSRAM, Y2K TIN LEAD 4.5V~5.5V DUAL 240 5V DS1746 34 Timer or RTC 5V 128KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) N NO YY-MM-DD-dd 4mA @ 5V 3V
DS1643AL-120 DS1643AL-120 Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) Non-RoHS Compliant 2000 /files/maximintegrated-ds1643al120-datasheets-4469.pdf 34-LPM Contains Lead 34 Parallel Leap Year, NVSRAM 4.5V~5.5V DS1643 8KB HH:MM:SS (24 hr) YY-MM-DD-dd 4mA @ 5V
DS1647P-120 DS1647P-120 Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2005 /files/maximintegrated-ds1647120-datasheets-2473.pdf 34-PowerCap™ Module 5V Contains Lead 34 34 Parallel no EAR99 No 8473.30.11.80 e0 Leap Year, NVSRAM TIN LEAD 4.5V~5.5V DUAL 240 5V DS1647 34 20 512KB Clock 0.032MHz 8 HH:MM:SS (24 hr) YY-MM-DD-dd 4mA @ 4.5V~5.5V 3V
DS1543-70 DS1543-70 Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) Non-RoHS Compliant 2000 /files/maximintegrated-ds154370-datasheets-4427.pdf 28-DIP Module (0.600, 15.24mm) Contains Lead Parallel Alarm, Leap Year, NVSRAM, Watchdog Timer 4.5V~5.5V DS1543 8KB HH:MM:SS (24 hr) YY-MM-DD-dd 3mA @ 5V
DS1744P-70IND DS1744P-70IND Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount -40°C~85°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2006 /files/maximintegrated-ds174470-datasheets-9961.pdf 34-PowerCap™ Module 5V Contains Lead 34 Unknown 34 Parallel EAR99 No 8542.39.00.01 e0 Leap Year, NVSRAM, Y2K TIN LEAD 4.5V~5.5V DUAL 240 5V DS1744 34 Timer or RTC 5V 32KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) N NO YY-MM-DD-dd 4mA @ 5V 3V
DS1553W-120 DS1553W-120 Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS 9.398mm Non-RoHS Compliant 2005 /files/maximintegrated-ds1553p70-datasheets-2232.pdf 28-DIP Module (0.600, 15.24mm) 38.862mm 15.24mm 3.3V Contains Lead 28 28 Parallel EAR99 No 8473.30.11.80 e0 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tin/Lead (Sn/Pb) 2.97V~3.63V DUAL 240 3.3V 2.54mm DS1553 28 Timer or RTC 8KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 2mA @ 3.3V
DS1248WP-120 DS1248WP-120 Maxim Integrated
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0 0x0x0 download Phantom Time Chip Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS 120GHz Non-RoHS Compliant 2005 /files/maximintegrated-ds1248y70-datasheets-0298.pdf 34-PowerCap™ Module 3.3V Contains Lead 34 34 Parallel No NVSRAM 2.97V~3.63V DUAL 3V DS1248 34 Timer or RTC 128KB Clock 120 ns 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 7mA @ 3.3V 3V
DS1244WP-120IND DS1244WP-120IND Maxim Integrated
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0 0x0x0 download Phantom Time Chip Surface Mount Surface Mount -40°C~85°C Tube 3 (168 Hours) CMOS 120GHz Non-RoHS Compliant 2005 /files/maximintegrated-ds1244y70-datasheets-9986.pdf 34-PowerCap™ Module 3.3V Contains Lead 34 34 Parallel EAR99 No 8542.39.00.01 e0 Leap Year, NVSRAM TIN LEAD 2.97V~3.63V DUAL 240 3.3V DS1244 34 Timer or RTC 32KB Clock 120 ns 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 7mA @ 3.3V 3V
DS1553-70 DS1553-70 Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS 9.398mm Non-RoHS Compliant 2005 /files/maximintegrated-ds1553p70-datasheets-2232.pdf 28-DIP Module (0.600, 15.24mm) 38.862mm 15.24mm Contains Lead 28 Parallel EAR99 not_compliant 8542.39.00.01 e0 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Tin/Lead (Sn/Pb) 4.5V~5.5V DUAL 240 5V 2.54mm DS1553 28 NOT SPECIFIED Timer or RTC 5V Not Qualified R-PDIP-P28 8KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 3mA @ 5V
DS1691 DS1691 Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) Non-RoHS Compliant 2005 /files/maximintegrated-ds1688s-datasheets-2225.pdf 28-DIP Module (0.600, 15.24mm) Contains Lead Parallel Alarm, Leap Year, Square Wave Output, Unique ID 2.7V~3.3V 4.5V~5.5V DS1691 114B Clock HH:MM:SS (12/24 hr) YY-MM-DD
DS1248YP-70 DS1248YP-70 Maxim Integrated
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0 0x0x0 download Phantom Time Chip Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2012 /files/maximintegrated-ds1248y70-datasheets-0298.pdf 34-PowerCap™ Module Contains Lead 34 Parallel 3A991.B.2.A USE DS9034PCX TO ORDER POWERCAP not_compliant 8473.30.11.40 e0 NVSRAM TIN LEAD YES 4.5V~5.5V DUAL 240 5V DS1248 34 NOT SPECIFIED Timer or RTC 5V Not Qualified R-XDMA-U34 128KB 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) N NO YY-MM-DD-dd 10mA @ 5V 3V
DS1386-8-120 DS1386-8-120 Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS 10.922mm Non-RoHS Compliant 2007 /files/maximintegrated-ds13868120-datasheets-2227.pdf 32-DIP Module (0.600, 15.24mm) 43.053mm 15.24mm Contains Lead 32 32 Parallel EAR99 not_compliant 8473.30.11.80 e0 Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer Tin/Lead (Sn/Pb) 4.5V~5.5V DUAL 240 5V 2.54mm DS1386 32 NOT SPECIFIED Timer or RTC 5V Not Qualified 8KB Clock 1 1/100SECOND 8 HH:MM:SS:hh (12/24 hr) Y NO YY-MM-DD-dd 4mA @ 5V
DS1556P-70 DS1556P-70 Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount 0°C~70°C Tray 3 (168 Hours) CMOS Non-RoHS Compliant 2004 /files/maximintegrated-ds155670-datasheets-9871.pdf 34-PowerCap™ Module 5V Contains Lead 34 34 Parallel yes EAR99 No 8542.39.00.01 e3 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Matte Tin (Sn) 4.5V~5.5V DUAL 5V DS1556 34 Timer or RTC 5V 128KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 6mA @ 5V 3V
DS1557WP-120 DS1557WP-120 Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2005 /files/maximintegrated-ds1557wp120-datasheets-1912.pdf 34-PowerCap™ Module 25.27mm 810μm 23.62mm 3.3V Contains Lead 34 Unknown 34 Parallel yes EAR99 Tin No 8473.30.11.80 e3 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 2.97V~3.63V DUAL 3.3V DS1557 34 Timer or RTC 512KB Clock 0.032MHz SECONDS HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 4mA @ 3.3V 3V
MCP795B12T-I/SL MCP795B12T-I/SL Microchip Technology
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tape & Reel (TR) 1 (Unlimited) CMOS 1.75mm ROHS3 Compliant 2011 /files/microchiptechnology-mcp795b11tist-datasheets-3751.pdf 14-SOIC (0.154, 3.90mm Width) 8.65mm 3.9mm 14 SPI EAR99 ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ 8542.39.00.01 e3 Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer MATTE TIN (SN) YES 1.8V~5.5V DUAL 5V 1.27mm MCP795B12 14 Timer or RTC 2/5V Not Qualified R-PDSO-G14 64B 8 10MHz 1/100SECOND HH:MM:SS:hh (12/24 hr) Y NO YY-MM-DD-dd 1μA @ 1.8V~5.5V 1.3V~5.5V
DS1746P-70 DS1746P-70 Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2005 /files/maximintegrated-ds174670-datasheets-9700.pdf 34-PowerCap™ Module 5V Contains Lead 34 Unknown 34 Parallel EAR99 A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED Tin No 8542.39.00.01 e0 Leap Year, NVSRAM, Y2K 4.5V~5.5V DUAL 240 5V DS1746 34 Timer or RTC 5V 128KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) N NO YY-MM-DD-dd 4mA @ 5V 3V
DS1556P-70IND DS1556P-70IND Maxim Integrated
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0 0x0x0 download Clock/Calendar Surface Mount Surface Mount 0°C~70°C Tube 3 (168 Hours) CMOS Non-RoHS Compliant 2012 /files/maximintegrated-ds155670-datasheets-9871.pdf 34-PowerCap™ Module 5V Contains Lead 34 34 Parallel EAR99 No 8542.39.00.01 e0 Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K TIN LEAD 4.5V~5.5V DUAL 240 5V DS1556 34 Timer or RTC 5V 128KB Clock 0.032MHz SECONDS 8 HH:MM:SS (24 hr) Y NO YY-MM-DD-dd 6mA @ 5V 3V
DS1744-70IND DS1744-70IND Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole -40°C~85°C Tube 1 (Unlimited) CMOS Non-RoHS Compliant 2006 /files/maximintegrated-ds174470-datasheets-9961.pdf 28-DIP Module (0.600, 15.24mm) 39.37mm 10.67mm 18.8mm 5V Contains Lead 28 Unknown 28 Parallel EAR99 No 8542.39.00.01 e0 Leap Year, NVSRAM, Y2K Tin/Lead (Sn/Pb) 4.5V~5.5V DUAL 240 5V 2.54mm DS1744 28 Timer or RTC 5V 32KB Clock 0.032MHz SECONDS HH:MM:SS (24 hr) N NO YY-MM-DD-dd 4mA @ 5V
DS1746W-120 DS1746W-120 Maxim Integrated
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0 0x0x0 download Clock/Calendar Through Hole Through Hole 0°C~70°C Tube 1 (Unlimited) CMOS Non-RoHS Compliant 2005 /files/maximintegrated-ds174670-datasheets-9700.pdf 32-DIP Module (0.600, 15.24mm) 44.2mm 10.92mm 18.8mm 3.3V Contains Lead 32 Unknown 32 Parallel yes EAR99 Tin No 8473.30.11.80 e3 Leap Year, NVSRAM, Y2K 2.97V~3.63V DUAL 3.3V 2.54mm DS1746 32 Timers or RTCs 128KB Clock SECONDS HH:MM:SS (24 hr) N NO YY-MM-DD-dd 2mA @ 3.3V
MCP795B12-I/SL MCP795B12-I/SL Microchip Technology
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0 0x0x0 download Clock/Calendar Surface Mount -40°C~85°C Tube 1 (Unlimited) CMOS 1.75mm ROHS3 Compliant 2011 /files/microchiptechnology-mcp795b11tist-datasheets-3751.pdf 14-SOIC (0.154, 3.90mm Width) 8.65mm 3.9mm 14 SPI EAR99 ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ 8542.39.00.01 e3 Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer MATTE TIN (SN) YES 1.8V~5.5V DUAL 5V 1.27mm MCP795B12 14 Timer or RTC 2/5V Not Qualified R-PDSO-G14 64B 8 10MHz 1/100SECOND HH:MM:SS:hh (12/24 hr) Y NO YY-MM-DD-dd 1μA @ 1.8V~5.5V 1.3V~5.5V

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