R2051L02-E2 Alternatives &amp; Replacements

Rochester Electronics, LLCStock24-SSOP (0.154", 3.90mm Width)

BQ3285LFSS-A1

IC RTC CLK/CALENDAR PAR 24-QSOP

R2023K-E2

REAL TIME CLOCK, CMOS

Texas InstrumentsStock28-SOIC (0.295", 7.50mm Width)

BQ4845S-A4NTR

IC RTC CLK/CALENDAR PAR 28-SOIC

Rochester Electronics, LLCStock24-SSOP (0.154", 3.90mm Width)

BQ3285ESS

IC RTC CLK/CALENDAR PAR 24-QSOP

R2062L01-E2

3 WIRE INTERFACE REAL-TIME CLOCK

Texas InstrumentsStock24-SSOP (0.154", 3.90mm Width)

BQ3285LDSSTR

IC RTC CLK/CALENDAR PAR 24-QSOP

Abracon LLCStock16-VFQFN Exposed Pad

AB1815-T3

IC RTC CLK/CALENDAR SPI 16-QFN

ABLIC Inc.Stock8-TSSOP (0.173", 4.40mm Width)

S-35390A-T8T1G

IC RTC CLK/CALENDAR I2C 8-TSSOP

Rochester Electronics, LLCStock24-DIP (0.600", 15.24mm)

BQ4285P-SB2

IC RTC CLK/CALENDAR PAR 24-DIP

R2051T01-E2-F

2 WIRE INTERFACE REAL-TIME CLOCK

Rochester Electronics, LLCStock8-UFDFN

ISL12058IRUZ-T

REAL TIME CLOCK

NXP USA Inc.Stock12-XFBGA, WLCSP

PCF85263AUKZ

IC RTC/CAL ALM I2C WLCSP

Rochester Electronics, LLCStock8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

DS1672U-33

IC RTC BINARY CNT I2C 8-USOP

Renesas Electronics America IncStock8-WDFN Exposed Pad

ISL12058IRTZ-T

IC RTC CLK/CALENDAR I2C 8-TDFN

NXP USA Inc.Stock8-SOIC (0.154", 3.90mm Width)

PCF85063AT/AY

IC RTC CLK/CALENDAR I2C 8SO

RV-3129-C3-32.768KHZ-OPTION-B-TA-QC

IC RTC CLK/CALENDAR I2C 10SON

Rochester Electronics, LLCStock24-SSOP (0.154", 3.90mm Width)

BQ3285LDSS

IC RTC CLK/CALENDAR PAR 24-QSOP

Texas InstrumentsStock24-SSOP (0.154", 3.90mm Width)

BQ3285ESSTR

IC RTC CLK/CALENDAR PAR 24-QSOP

Texas InstrumentsStock28-SOIC (0.295", 7.50mm Width)

BQ4845YS-A4NTR

IC RTC CLK/CALENDAR PAR 28-SOIC

NXP USA Inc.Stock10-XFDFN Exposed Pad

PCF85063BTL/1,118

IC RTC CLK/CALENDAR SPI 10-HXSON

Rochester Electronics, LLCStock20-TSSOP (0.173", 4.40mm Width)

DS1670E

IC RTC SYSTEM CTRLR SER 20-TSSOP

Texas InstrumentsStock28-SOIC (0.295", 7.50mm Width)

BQ4845S-A4TR

IC RTC CLK/CALENDAR PAR 28-SOIC

Rochester Electronics, LLCStock28-SOIC (0.295", 7.50mm Width)

BQ4802YDW

IC RTC CLK/CALENDAR PAR 28-SOIC

Rochester Electronics, LLCStock24-SOIC (0.295", 7.50mm Width)

BQ4285S-SB2

IC RTC CLK/CALENDAR PAR 24-SOP

Rochester Electronics, LLCStock16-DIP (0.300", 7.62mm)

CDP68HC68T1E

SERIAL RTC WITH RAM

Rochester Electronics, LLCStock8-TSSOP (0.173", 4.40mm Width)

ISL12027IV27AZ

RTC, NON-VOLATILE

Abracon LLCStockModule

AB-RTCMC-32.768KHZ-IBO5-S3-T

IC RTC CLK/CALEND I2C 10CLCC ULP

Texas InstrumentsStock24-SOIC (0.295", 7.50mm Width)

BQ3285ESTR

IC RTC CLK/CALENDAR PAR 24-SOIC

STMicroelectronicsStock16-VQFN Exposed Pad

M41T93ZQA6F

IC RTC CLK/CALENDAR SPI 16-QFN

Analog Devices Inc./Maxim IntegratedStock24-DIP Module (0.600", 15.24mm)

DS1687-5+

IC RTC CLK/CALENDAR PAR 24-EDIP

STMicroelectronicsStock16-VFQFN Exposed Pad

M41T60Q6F

IC RTC CLK/CALENDAR I2C 16-QFN

Rochester Electronics, LLCStock8-TSSOP (0.173", 4.40mm Width)

ISL12025IVZ-T

RTC, NON-VOLATILE

Micro Crystal AGStock8-WCDFN

RV-8063-C7-32.768KHZ-20PPM-TA-QC

IC RTC CLK/CALENDAR SPI 8SON

Rochester Electronics, LLCStock8-UFDFN

ISL12057IRUZ-T

RTC, VOLATILE

Rochester Electronics, LLCStock6-SMD, J-Lead

DS2415P

IC RTC BINARY CNT SER 6-TSOC

Rochester Electronics, LLCStock28-SOIC (0.295", 7.50mm Width)

BQ4802LYDW

IC RTC CLK/CALENDAR PAR 28-SOIC

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

DS1338Z-3

IC RTC CLK/CALENDAR I2C 8-SOIC

STMicroelectronicsStock8-LCC

M41T62LC6F

IC RTC CLK/CALENDAR I2C 8LCC

Rochester Electronics, LLCStock14-SOIC (0.154", 3.90mm Width)

ISL12029AIB27Z

REAL TIME CLOCK

Analog Devices Inc./Maxim IntegratedStock12-WFBGA, WLBGA

MAX31341BEWC+T

LOW CURRENT REAL TIME CLOCK WITH

Rochester Electronics, LLCStock34-PowerCap™ Module

DS1386P-8-120

IC RTC CLK/CALENDAR PAR 34-PCM

Analog Devices Inc./Maxim IntegratedStock8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

DS1308U-33+T

IC RTC CLK/CALENDAR I2C 8-UMAX

Rochester Electronics, LLCStock28-SOIC (0.295", 7.50mm Width)

BQ4845YS-A4N

IC RTC CLK/CALENDAR PAR 28-SOIC

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

X1227S8Z-2.7A

RTC, NON-VOLATILE

RV-3129-C3-32.768KHZ-OPTION-B-TB-QA

IC RTC CLK/CALENDAR I2C 10SON

RV-3129-C3-32.768KHZ-OPTION-A-TB-QA

IC RTC CLK/CALENDAR I2C 10SON

UPD4991AGS-A

RTC, VOLATILE, 1 TIMER(S) PDSO

Texas InstrumentsStock24-SSOP (0.154", 3.90mm Width)

BQ3285LFSS-A1TR

IC RTC CLK/CALENDAR PAR 24-QSOP

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

ISL12059IBZ-T

REAL TIME CLOCK

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

ISL12027IB27AZ-T

RTC, NON-VOLATILE

Analog Devices Inc./Maxim IntegratedStock20-TSSOP (0.173", 4.40mm Width)

DS1305E+T&R

IC RTC CLK/CALENDAR SPI 20-TSSOP

Micro Crystal AGStock8-WCDFN

RV-4162-C7-32.768KHZ-20PPM-TA-QC

IC RTC CLK/CALENDAR I2C 8SON

Rochester Electronics, LLCStock28-SOIC (0.295", 7.50mm Width)

BQ4845S-A4

IC RTC CLK/CALENDAR PAR 28-SOIC

Rochester Electronics, LLCStock8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

DS1338U-33

IC RTC CLK/CALENDAR I2C 8-USOP

Renesas Electronics America IncStock10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

ISL1221IUZ-T

IC RTC EVENT REC I2C 10-MSOP

Rochester Electronics, LLCStock14-WFDFN Exposed Pad

DS1344D-33+

IC RTC CLK/CAL SPI 14TDFN

Rochester Electronics, LLCStock8-TSSOP (0.173", 4.40mm Width)

ISL12027IV30AZ

RTC, NON-VOLATILE

Rochester Electronics, LLCStock32-TQFP

DS12885T

IC RTC CLK/CALENDAR PAR 32-TQFP

Rochester Electronics, LLCStock8-DIP (0.300", 7.62mm)

DS1672-3+

IC RTC BINARY CNT I2C 8-DIP

Rochester Electronics, LLCStock8-DIP (0.300", 7.62mm)

DS1672-3

IC RTC BINARY CNT I2C 8-DIP

NXP USA Inc.Stock8-SOIC (0.295", 7.50mm Width)

PCF8583T/5,518

IC RTC CLK/CALENDAR I2C 8-SOIC

NXP USA Inc.Stock-

PCA85073ADP/Q900Z

AUTO RTC/CAL W/ALRM 8TSSOP

RV5C338A-E2-F

3-WIRE SERIAL INTERFACE REAL-TIM

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

DS1338Z-18

IC RTC CLK/CALENDAR I2C 8-SOIC

STMicroelectronicsStock16-VFQFN Exposed Pad

M41T66Q6F

IC RTC CLK/CALENDAR I2C 16-QFN

RS5C338A-E2-F

3-WIRE SERIAL INTERFACE REAL-TIM

Rochester Electronics, LLCStock14-SOIC (0.154", 3.90mm Width)

ISL12028AIB27Z

RTC, VOLATILE

Rochester Electronics, LLCStock28-DIP (0.600", 15.24mm)

BQ4845P-A4

IC RTC CLK/CALENDAR PAR 28-DIP

Rochester Electronics, LLCStock28-LCC (J-Lead)

DS14285Q+

IC RTC CLK/CALENDAR PAR 28-PLCC

RV-8523-C3-32.768KHZ-20PPM-TA-QC

IC RTC CLK/CALENDAR I2C 10SON

Texas InstrumentsStock24-SOIC (0.295", 7.50mm Width)

BQ4285S-SB2TR

IC RTC CLK/CALENDAR PAR 24-SOIC

Rochester Electronics, LLCStock6-TFBGA, FCBGA

DS2417X

REAL TIME CLOCK 0 TIMER(S) PBGA6

Texas InstrumentsStock24-SOIC (0.295", 7.50mm Width)

BQ3285S-SB2TR

IC RTC CLK/CALENDAR PAR 24-SOIC

ABLIC Inc.Stock8-SOIC (0.154", 3.90mm Width)

S-35390A-J8T1G

IC RTC CLK/CALENDAR I2C 8-SOP

Rochester Electronics, LLCStock14-TSSOP (0.173", 4.40mm Width)

ISL12029AIV27Z

RTC, NON-VOLATILE, 1 TIMER(S)

Diodes IncorporatedStock8-SOIC (0.154", 3.90mm Width)

PT7C4339WEX

IC RTC CAL I2C/2-WIRE SER 8SOIC

ABLIC Inc.Stock8-SMD, Flat Lead

S-35390A-I8T1U

IC RTC CLK/CALENDAR I2C SNT-8A

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

ISL1208IB8

RTC, NON-VOLATILE

Abracon LLCStock10-SMD Module

AB-RTCMC-32.768KHZ-B5GA-S3-T

IC RTC CLK/CALENDAR I2C MODULE

Rochester Electronics, LLCStock8-SOIC (0.209", 5.30mm Width)

DS1302SN

IC RTC CLK/CALENDAR SER 8-SOIC

Rochester Electronics, LLCStock24-DIP (0.600", 15.24mm)

BQ4285EP

RTC, VOLATILE

STMicroelectronicsStock28-SOIC (0.295", 7.50mm Width)

M41ST87WMX6TR

IC RTC CLK/CALENDAR I2C 28-SOIC

Rochester Electronics, LLCStock8-DIP (0.300", 7.62mm)

DS1337

IC RTC CLK/CALENDAR I2C 8-DIP

DS1248Y-120

1024K NV SRAM & PHANTOM CLOCK

Rochester Electronics, LLCStock8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

ISL1208IU8-TK

RTC, NON-VOLATILE

Analog Devices Inc./Maxim IntegratedStock8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

DS1341U+T&R

IC RTC CLK/CALENDAR I2C 8-USOP

Rochester Electronics, LLCStock32-DIP Module (0.600", 15.24mm)

DS1646-120

IC RTC CLK/CALENDAR PARAL 32EDIP

Rochester Electronics, LLCStock14-SOIC (0.154", 3.90mm Width)

ISL12029IB27Z

REAL TIME CLOCK

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

DS1340Z-18

IC RTC CLK/CALENDAR I2C 8-SOIC

Analog Devices Inc./Maxim IntegratedStock28-TSSOP (0.465", 11.80mm Width)

DS17285E-5

IC RTC CLK/CALENDAR PAR 28-TSOP

Rochester Electronics, LLCStock14-TSSOP (0.173", 4.40mm Width)

ISL12028IVZ

RTC, VOLATILE

Rochester Electronics, LLCStock8-SOIC (0.154", 3.90mm Width)

ISL12027AIB27Z

RTC, NON-VOLATILE

Rohm SemiconductorStock8-UFDFN Exposed Pad

BU9873NUX-TTR

IC RTC CLK/CALENDAR I2C 8VSON

LV8571AN

RTC, VOLATILE, 2 TIMER(S)

Rochester Electronics, LLCStock14-SOIC (0.154", 3.90mm Width)

ISL12029IB27AZ

RTC, NON-VOLATILE, 1 TIMER(S)

Rochester Electronics, LLCStock34-PowerCap™ Module

DS1553WP-150

IC RTC CLK/CALENDAR PAR 34-PCM

Rochester Electronics, LLCStock14-TSSOP (0.173", 4.40mm Width)

ISL12028IV27Z

RTC, VOLATILE

Rochester Electronics, LLCStock28-TSSOP (0.465", 11.80mm Width)

DS17885E-5+

IC RTC CLK/CALENDAR PAR 28-TSOP

Rochester Electronics, LLCStock20-TSSOP (0.173", 4.40mm Width)

DS1677E

IC RTC SYSTEM CTRLR SER 20-TSSOP