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Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Mount Packaging Published Pbfree Code Part Status Moisture Sensitivity Level (MSL) Number of Terminations Termination ECCN Code Max Operating Temperature Min Operating Temperature Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Radiation Hardening Number of Pins Additional Feature Package / Case Interface Max Supply Voltage REACH SVHC Reach Compliance Code Min Supply Voltage Height Width Thickness Mounting Type Weight Operating Temperature Technology Height Seated (Max) HTS Code Nominal Supply Current Type JESD-609 Code Terminal Finish Terminal Position Terminal Form Peak Reflow Temperature (Cel) Supply Voltage Time@Peak Reflow Temperature-Max (s) Base Part Number Pin Count Temperature Grade Surface Mount Terminal Pitch JESD-30 Code Supply Voltage-Min (Vsup) Operating Temperature (Max) Operating Temperature (Min) Subcategory Qualification Status Power Supplies Supply Voltage-Max (Vsup) Feature Supplier Device Package Logic Function Access Time Screening Level Memory Size Voltage - Supply Time Format External Data Bus Width uPs/uCs/Peripheral ICs Type Clock Frequency Time-Min Interrupt Capability Volatile Information Access Method Number of Timers Date Format Current - Timekeeping (Max) Voltage - Supply, Battery
PCF8583P/F4,112 PCF8583P/F4,112 NXP Semiconductors 0.0000
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Min: 1

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0.00000000
BQ3285LFSS-A1 BQ3285LFSS-A1 Rochester Electronics 0.0000
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0.00000000 download Tube Obsolete 2 (1 Year) ROHS3 Compliant 24-SSOP (0.154, 3.90mm Width) Parallel Surface Mount 0°C~70°C Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 24-SSOP/QSOP 242B 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 100μA @ 3V 2.4V~4V
DS1338U-3+T&R DS1338U-3+T&R Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2012 Active 1 (Unlimited) 85°C -40°C 3V ROHS3 Compliant Lead Free Tin No 8 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial 3.3V 2.7V Surface Mount -40°C~85°C Clock/Calendar DS1338 Leap Year, NVSRAM, Square Wave Output 8-uMAX Clock 56B 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 200μA @ 3.3V 1.3V~3.7V
X1226V8T2 X1226V8T2 Renesas Electronics America Inc. 0.0000
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Min: 1

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0.00000000 download Tape & Reel (TR) Obsolete 1 (Unlimited) Non-RoHS Compliant 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial Surface Mount 0°C~70°C Clock/Calendar X1226 Alarm, Leap Year 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5V 1.8V~5.5V
PCF8583T/5,112 PCF8583T/5,112 NXP Semiconductors 0.0000
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0.00000000
MCP79400T-I/ST MCP79400T-I/ST Microchip Technology 0.0000
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Min: 1

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0.00000000 download 2 Weeks Surface Mount Tape & Reel (TR) 2011 Active 1 (Unlimited) 8 EAR99 4.4mm ROHS3 Compliant No 8 8-TSSOP (0.173, 4.40mm Width) I2C, 2-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.2mm Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 2.5V 40 MCP79400 8 0.65mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Clock TS 16949 64B 1.8V~5.5V HH:MM:SS (12/24 hr) 0.4MHz SECONDS Y NO I2C 1 YY-MM-DD-dd 1.2μA Typ @ 3.3V 1.3V~5.5V
DS1337U+T DS1337U+T Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 8 Weeks Surface Mount 2015 yes 1 8 EAR99 85°C -40°C 3.3V 3mm RoHS Compliant Contains Lead Tin 8 UMAX 3mm CMOS 1.1mm e3 DUAL 260 3.3V 30 8 INDUSTRIAL 0.65mm Timer or RTC Not Qualified 1.5/5V 5.5V Clock HH:MM:SS 0.032MHz SECONDS Y YES I2C 1
DS17287-3+ DS17287-3+ Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 14 Weeks Tube 2000 yes Active 1 (Unlimited) 24 EAR99 33.782mm ROHS3 Compliant Lead Free 24 24-DIP Module (0.600, 15.24mm) Parallel not_compliant Through Hole 0°C~70°C CMOS 9.398mm 8473.30.11.80 Clock/Calendar e3 Matte Tin (Sn) DUAL NOT SPECIFIED 3V NOT SPECIFIED DS17287 24 NO 2.54mm Timer or RTC Not Qualified 3V Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 2KB 2.7V~3.7V HH:MM:SS (12/24 hr) 8 0.032MHz SECONDS Y YES 1 YY-MM-DD-dd 2mA @ 2.7V~3.7V 2.5V~3.7V
DS1672U-33+T&R DS1672U-33+T&R Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2002 Active 1 (Unlimited) 85°C -40°C 3.3V ROHS3 Compliant Lead Free Tin No 8 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial 3.63V 2.97V Surface Mount -40°C~85°C Binary Counter DS1672 Trickle-Charger 8-uMAX Clock, Counter 2.97V~3.63V Binary Binary 500μA @ 3.63V 1.3V~3.63V
DS1553P-100 DS1553P-100 Rochester Electronics 0.0000
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Min: 1

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0.00000000 download Tube no Obsolete 3 (168 Hours) 34 Non-RoHS Compliant A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED 34-PowerCap™ Module Parallel Surface Mount 0°C~70°C Clock/Calendar e0 TIN LEAD DUAL 240 5V NOT SPECIFIED 34 YES R-XDMA-U34 COMMERCIAL Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 8KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz YY-MM-DD-dd 3mA @ 5V 3V
DS1343E-18+ DS1343E-18+ Maxim Integrated 0.0000
RFQ

Min: 1

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0.00000000 download 6 Weeks Surface Mount Tube 2002 yes Active 1 (Unlimited) 20 EAR99 1.8V 6.5mm ROHS3 Compliant No 20 20-TSSOP (0.173, 4.40mm Width) SPI 4.4mm Surface Mount -40°C~85°C CMOS 1.1mm 8473.30.11.80 Clock/Calendar DUAL 1.8V DS1343 20 0.65mm Timers or RTCs Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger Clock 96B 1.71V~5.5V HH:MM:SS (12/24 hr) 4MHz SECONDS Y NO SERIAL, 3-WIRE 1 YY-MM-DD-dd 1.3V~5.5V
ISL12022MIBZ-T ISL12022MIBZ-T Intersil 0.0000
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Min: 1

Mult: 1

0.00000000
1338AC-31SRGI8 1338AC-31SRGI8 Integrated Device Technology (IDT) 0.0000
RFQ

Min: 1

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0.00000000 download 7 Weeks Surface Mount Tape & Reel (TR) 2006 yes Active 3 16 EAR99 85°C -40°C 3.3V 10.4mm RoHS Compliant Lead Free Tin 16 SOIC 2-Wire, I2C, Serial 2.34mm 7.6mm 2.34mm CMOS 8542.39.00.01 e3 DUAL 260 NOT SPECIFIED 16 INDUSTRIAL 1.27mm Timer or RTC Not Qualified 2.5/5V 5.5V Clock 56B HH:MM:SS (12/24 hr) 0.032MHz SECONDS N NO I2C 1 YY-MM-DD-dd
ISL12028IB30AZ ISL12028IB30AZ Renesas Electronics America 0.0000
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Min: 1

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0.00000000 download Tube Obsolete 2 (1 Year) ROHS3 Compliant 14-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Clock/Calendar ISL12028 Alarm, Leap Year, Supervisor, Watchdog Timer 14-SOIC 2.7V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 10μA~20μA @ 2.7V~5.5V 1.8V~5.5V
DS1392U-3+ DS1392U-3+ Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 7 Weeks Surface Mount Tube 2002 yes Obsolete 1 (Unlimited) 10 EAR99 3V 3mm ROHS3 Compliant Lead Free No 10 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) 3-Wire Serial 3mm Surface Mount -40°C~85°C CMOS 1.1mm 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 3V 30 DS1392 10 0.5mm Timers or RTCs 3V Alarm, Leap Year, Square Wave Output, Trickle-Charger Clock 2.7V~3.3V HH:MM:SS:hh (12/24 hr) 0.032MHz Y NO SERIAL, 2-WIRE/I2C 1 YY-MM-DD-dd 125μA @ 2.7V~3.3V 1.3V~3.7V
MCP79411T-I/MNY MCP79411T-I/MNY Microchip Technology 0.0000
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Min: 1

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0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2011 Active 1 (Unlimited) 8 EAR99 3mm ROHS3 Compliant No 8 8-WFDFN Exposed Pad I2C, 2-Wire Serial 2mm Surface Mount -40°C~85°C CMOS Clock/Calendar e4 Nickel/Palladium/Gold (Ni/Pd/Au) DUAL 260 5V 40 MCP79411 8 0.5mm Timers or RTCs 2/5V Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Clock 64B 1Kb 1.8V~5.5V HH:MM:SS (12/24 hr) 0.4MHz SECONDS Y NO I2C YY-MM-DD-dd 1.2μA @ 3.3V 1.3V~5.5V
ISL12029IV30AZ-T ISL12029IV30AZ-T Intersil (Renesas Electronics America) 0.0000
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Min: 1

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0.00000000 download Surface Mount 2005 Active 1 14 EAR99 85°C -40°C 3.3V 5mm RoHS Compliant No 14 TSSOP 2-Wire, I2C, Serial 5.5V 2.7V 4.4mm CMOS 1.2mm 8542.39.00.01 e3 Matte Tin (Sn) - annealed DUAL 260 3.3V 40 INDUSTRIAL 0.65mm Timer or RTC 3/5V Clock HH:MM:SS 0.032MHz SECONDS Y NO I2C 1 YY-MM-DD-dd
DS1742-70 DS1742-70 Maxim Integrated 0.0000
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Min: 1

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0.00000000 download Through Hole Tube 2005 Obsolete 1 (Unlimited) 24 EAR99 5V 37.595mm Non-RoHS Compliant Contains Lead No 24 24-DIP Module (0.600, 15.24mm) Parallel Through Hole 0°C~70°C CMOS 8.51mm 8542.39.00.01 Clock/Calendar e0 Tin/Lead (Sn/Pb) DUAL 240 5V DS1742 24 2.54mm Timer or RTC 5V Leap Year, NVSRAM, Y2K Clock 2KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz SECONDS N NO YY-MM-DD-dd 3mA @ 5V
DS1338Z-33+T&R DS1338Z-33+T&R Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks Surface Mount Tape & Reel (TR) 2012 Active 1 (Unlimited) 85°C -40°C 3.3V ROHS3 Compliant Lead Free Tin No 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 5.5V Unknown 3V Surface Mount 540.001716mg -40°C~85°C Clock/Calendar DS1338 Leap Year, NVSRAM, Square Wave Output 8-SOIC Clock 56B 3V~5.5V HH:MM:SS (12/24 hr) YY-MM-DD-dd 125μA~200μA @ 3.63V~5.5V 1.3V~3.7V
IDT1339C-31SRI8 IDT1339C-31SRI8 Integrated Device Technology (IDT) 0.0000
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Min: 1

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0.00000000 Surface Mount Tape & Reel (TR) 85°C -40°C Non-RoHS Compliant 16 SOIC 2-Wire, I2C, Serial HH:MM:SS (12/24 hr) YY-MM-DD-dd
DS1392U-3 DS1392U-3 Maxim Integrated 0.0000
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Min: 1

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0.00000000 download Bulk 2009 no 1 10 EAR99 3mm Non-RoHS Compliant not_compliant 3mm CMOS 1.1mm 8542.39.00.01 e0 Tin/Lead (Sn/Pb) DUAL GULL WING 240 3V 20 10 INDUSTRIAL YES 0.5mm S-PDSO-G10 2.7V 85°C -40°C Timer or RTC Not Qualified 3V 3.3V TIMER, REAL TIME CLOCK 0.032MHz 1/100SECOND Y YES SERIAL, 2-WIRE/I2C 1
DS1557P-70 DS1557P-70 Rochester Electronics 0.0000
RFQ

Min: 1

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0.00000000 download Tube no Obsolete 3 (168 Hours) 34 Non-RoHS Compliant 34-PowerCap™ Module Parallel Surface Mount 0°C~70°C Clock/Calendar e0 TIN LEAD DUAL 240 5V NOT SPECIFIED 34 YES R-XDMA-U34 COMMERCIAL Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K 512KB 4.5V~5.5V HH:MM:SS (24 hr) 8 0.032MHz YY-MM-DD-dd 6mA @ 5V 3V
DS1391U-3+ DS1391U-3+ Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks Surface Mount Tube 2002 yes Active 1 (Unlimited) 10 EAR99 3V 3mm ROHS3 Compliant Lead Free No 10 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) SPI Unknown 950μm 3mm Surface Mount -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) DUAL 260 3V 30 DS1391 10 0.5mm Timers or RTCs 3V Alarm, Leap Year, Square Wave Output, Trickle-Charger Clock 2.7V~3.3V HH:MM:SS:hh (12/24 hr) 0.032MHz Y NO SERIAL, 3-WIRE 1 YY-MM-DD-dd 125μA @ 2.7V~3.3V 1.3V~3.7V
MCP79522-I/MS MCP79522-I/MS Microchip Technology 0.0000
RFQ

Min: 1

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0.00000000 download 5 Weeks Tube 2012 Active 1 (Unlimited) 10 EAR99 3mm ROHS3 Compliant Lead Free No 10 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) SPI 950μm 3mm Surface Mount -40°C~85°C CMOS 8542.39.00.01 Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 3V 40 MCP79522 YES 0.5mm Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID Clock 64B 1.8V~3.6V HH:MM:SS:hh (12/24 hr) 5MHz YY-MM-DD-dd 1μA @ 1.8V~3.6V 1.3V~3.6V
DS1371U+C01 DS1371U+C01 Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 2 Weeks Surface Mount Tube 2007 Obsolete 1 (Unlimited) ROHS3 Compliant No 8 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) I2C, 2-Wire Serial Surface Mount -40°C~85°C Binary Counter DS1371 Alarm, Square Wave Output, Watchdog Timer Counter 1.7V~5.5V Binary 1.3μA @ 1.7V~5.5V
DS1501WZN+ DS1501WZN+ Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download 6 Weeks Surface Mount Tube 2002 yes Active 1 (Unlimited) 28 EAR99 3.3V 17.9mm ROHS3 Compliant No 28 28-SOIC (0.295, 7.50mm Width) Parallel 7.5mm Surface Mount -40°C~85°C CMOS 2.65mm 8473.30.11.80 Clock/Calendar DUAL 3.3V DS1501 28 1.27mm Timers or RTCs Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Clock 256B 3V~3.6V HH:MM:SS (24 hr) 8 0.032MHz SECONDS Y YES 1 YY-MM-DD-dd 4mA @ 3V~3.6V 2.5V~3.7V
DS1501WZN+T&R DS1501WZN+T&R Maxim Integrated 0.0000
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Min: 1

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0.00000000 download 6 Weeks Surface Mount, Through Hole Tape & Reel (TR) 2002 Active 2 (1 Year) 85°C -40°C 3.3V ROHS3 Compliant Tin No 28 28-SOIC (0.295, 7.50mm Width) Parallel 3.6V 3V Surface Mount -40°C~85°C Clock/Calendar DS1501 Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K 28-SOIC Clock 256B 3V~3.6V HH:MM:SS (24 hr) YY-MM-DD-dd 4mA @ 3V~3.6V 2.5V~3.7V
DS1644-120 DS1644-120 Maxim Integrated 0.0000
RFQ

Min: 1

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0.00000000 download Through Hole Tube 2005 no Obsolete 1 (Unlimited) 28 Through Hole EAR99 5V 39.12mm Non-RoHS Compliant Contains Lead Tin No 28 28-DIP Module (0.600, 15.24mm) Parallel Unknown 9.4mm 18.29mm Through Hole 0°C~70°C CMOS 8473.30.11.80 75mA Clock/Calendar e0 DUAL 5V DS1644 28 2.54mm Timer or RTC 5V Leap Year, NVSRAM Clock 120 ns 32KB 4.5V~5.5V HH:MM:SS (24 hr) SECONDS N NO YY-MM-DD-dd 4mA @ 4.5V~5.5V
MCP7940MT-I/SN MCP7940MT-I/SN Microchip Technology 0.0000
RFQ

Min: 1

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0.00000000 download 7 Weeks Surface Mount Tape & Reel (TR) 2007 Active 1 (Unlimited) 8 EAR99 4.9mm ROHS3 Compliant No 8 8-SOIC (0.154, 3.90mm Width) I2C, 2-Wire Serial 3.9mm Surface Mount -40°C~85°C CMOS 1.75mm Clock/Calendar e3 Matte Tin (Sn) - annealed DUAL 260 2.5V 40 MCP7940M 1.27mm Timer or RTC 2/5V Alarm, Leap Year, Square Wave Output, SRAM Clock 64B 1.8V~5.5V HH:MM:SS (12/24 hr) SECONDS Y NO I2C 1 YY-MM-DD-dd 1μA @ 5.5V
DS1553W-120+ DS1553W-120+ Maxim Integrated 0.0000
RFQ

Min: 1

Mult: 1

0.00000000 download Tube 2010 yes Obsolete 1 (Unlimited) 28 EAR99 38.862mm ROHS3 Compliant Lead Free not_compliant 15.24mm CMOS 9.398mm 8473.30.11.80 e3 Matte Tin (Sn) DUAL PIN/PEG NOT SPECIFIED 3.3V NOT SPECIFIED 28 COMMERCIAL NO 2.54mm R-PDIP-P28 2.97V 70°C Timer or RTC Not Qualified 3.3V 3.63V 8 TIMER, REAL TIME CLOCK 0.032MHz SECONDS Y NO PARALLEL, DIRECT ADDRESS
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