Real Time Clock Extremely Accurate I C-Integrated RTC/TC
+4 images
DS3231SN#T&R
Analog Devices / Maxim Integrated
1:
¥2,539.7
6,569 On Order
Mouser Part # 700-DS3231SN#T&R-
Analog Devices / Maxim Integrated
Real Time Clock Extremely Accurate I C-Integrated RTC/TC
6,569 On Order
View Dates
Alternative Packaging
On Order:
2,569 Expected 8/12/2026
4,000 Expected 10/12/2026
Factory Lead-Time:
26 Weeks
1
¥2,539.7
10
¥2,003.2
25
¥1,863.6
100
¥1,714.2
1,000
¥1,714.2
Buy
Min.: 1 Mult.: 1
Max.: 100
Reel :1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
SO-16
Backup Switching
2.3 V
5.5 V
- 40 C
+ 85 C
DS3231SN
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Extremely Accurate SPI Bus RTC with Inte
DS3234S#T&R
Analog Devices / Maxim Integrated
1:
¥2,292.2
3,988 Expected 9/7/2026
Mouser Part # 700-DS3234S#T&R-
Analog Devices / Maxim Integrated
Real Time Clock Extremely Accurate SPI Bus RTC with Inte
3,988 Expected 9/7/2026
Alternative Packaging
1
¥2,292.2
10
¥1,800.5
25
¥1,677.6
100
¥1,541.4
250
View
1,000
¥1,405.2
250
¥1,518.2
500
¥1,468.3
1,000
¥1,405.2
2,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
SPI
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
256 B
SO-20
Backup Switching
2 V
5.5 V
0 C
+ 70 C
DS3234S
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Automotive RTC module, featuring I2C or SPI interface in HLSON16 package.
PCA2131TF/Q900Y
NXP Semiconductors
1:
¥699.3
7,723 Expected 9/28/2026
Mouser Part # 771-PCA2131TF/Q900Y
NXP Semiconductors
Real Time Clock Automotive RTC module, featuring I2C or SPI interface in HLSON16 package.
7,723 Expected 9/28/2026
1
¥699.3
10
¥538.2
25
¥498.3
100
¥455.1
250
View
4,000
¥395.3
250
¥435.2
500
¥430.2
1,000
¥408.6
2,000
¥400.3
4,000
¥395.3
Buy
Min.: 1 Mult.: 1
Reel :4,000
Details
PCA2131
AEC-Q100
Reel, Cut Tape
Real Time Clock Automotive RTC IC with 400 kHz I2C interface in TSSOP8 package.
PCA85073ADP/Q900Z
NXP Semiconductors
1:
¥274.1
44,669 On Order
Mouser Part # 771-PCA85073ADPQ900Z
NXP Semiconductors
Real Time Clock Automotive RTC IC with 400 kHz I2C interface in TSSOP8 package.
44,669 On Order
View Dates
On Order:
12,169 Expected 8/18/2026
17,500 Expected 9/7/2026
15,000 Expected 3/15/2027
Factory Lead-Time:
27 Weeks
1
¥274.1
10
¥201
25
¥182.7
100
¥161.6
250
View
2,500
¥136.2
250
¥152
500
¥146.7
1,000
¥144.7
2,500
¥136.2
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
TSSOP-8
No Backup Switching
900 mV
5.5 V
- 40 C
+ 105 C
PCA85073A
SMD/SMT
AEC-Q100
Reel, Cut Tape, MouseReel
Real Time Clock RTC Module with I2C or SPI interface featuring backup battery switch-over function in HLSON16 package.
PCF2131TFY
NXP Semiconductors
1:
¥607.9
34,200 Expected 8/10/2026
Mouser Part # 771-PCF2131TFY
NXP Semiconductors
Real Time Clock RTC Module with I2C or SPI interface featuring backup battery switch-over function in HLSON16 package.
34,200 Expected 8/10/2026
1
¥607.9
10
¥458.4
25
¥420.2
100
¥378.7
250
View
4,000
¥312.3
250
¥357.1
500
¥348.8
1,000
¥338.8
2,000
¥333.9
4,000
¥312.3
Buy
Min.: 1 Mult.: 1
Reel :4,000
Details
Serial, I2C, SPI
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
Backup Switching
1.2 V
5.5 V
- 40 C
+ 85 C
PCF2131
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
ISL12022IBZ
Renesas / Intersil
1:
¥883.7
6,860 On Order
Mouser Part # 968-ISL12022IBZ
Renesas / Intersil
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
6,860 On Order
View Dates
Alternative Packaging
On Order:
3,920 Expected 12/29/2026
2,940 Expected 1/8/2027
Factory Lead-Time:
22 Weeks
1
¥883.7
10
¥672.7
25
¥621.2
100
¥563.1
250
View
250
¥536.5
500
¥513.2
980
¥503.3
2,940
¥495
5,880
Quote
Buy
Min.: 1 Mult.: 1
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
128 B
SOIC-8
Backup Switching
2.7 V
5.5 V
- 40 C
+ 85 C
ISL12022
SMD/SMT
Tube
Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP
ISL12057IUZ-T
Renesas / Intersil
1:
¥471.7
9,642 On Order
Mouser Part # 968-ISL12057IUZ-T
Renesas / Intersil
Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP
9,642 On Order
View Dates
Alternative Packaging
On Order:
4,642 Expected 9/18/2026
5,000 Expected 9/25/2026
Factory Lead-Time:
22 Weeks
1
¥471.7
10
¥352.1
25
¥322.2
100
¥289
2,500
¥249.2
5,000
View
250
¥274.1
500
¥265.8
1,000
¥260.8
5,000
¥244.2
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
MSOP-8
No Backup Switching
1.8 V
3.6 V
- 40 C
+ 85 C
ISL12057
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C 2.5ppm 3.2x1.5x0.8 AECQ200 Temperature Sensor & Real Time Clock
+1 image
RV-3032-C7 32.768kHz-2.5PPM-TA-QA
Micro Crystal
1:
¥526.5
6,892 On Order
Mouser Part # 428-203853-MG01
Micro Crystal
Real Time Clock 32.768kHz I2C 2.5ppm 3.2x1.5x0.8 AECQ200 Temperature Sensor & Real Time Clock
6,892 On Order
View Dates
On Order:
2,892 Expected 9/11/2026
4,000 Expected 10/9/2026
Factory Lead-Time:
12 Weeks
1
¥526.5
10
¥395.3
25
¥362.1
100
¥325.6
1,000
¥295.7
2,000
View
250
¥308.9
500
¥302.3
2,000
¥290.7
5,000
¥285.7
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
16 B
Backup Switching
1.3 V
5.5 V
- 40 C
+ 105 C
RV-3032-C7
SMD/SMT
AEC-Q200
Reel, Cut Tape, MouseReel
Real Time Clock
RV-8263-C7-32.768KHZ-20PPM-TA-QA
Micro Crystal
1:
¥275.7
1,994 Expected 11/20/2026
Mouser Part # 428-8263C7328K20PTQA
Micro Crystal
Real Time Clock
1,994 Expected 11/20/2026
1
¥275.7
10
¥202.6
25
¥182.7
100
¥161.1
250
View
250
¥151.3
500
¥147.3
1,000
¥145.2
2,000
¥134.4
5,000
¥131.4
Buy
Min.: 1 Mult.: 1
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
No Backup Switching
900 mV
5.5 V
- 40 C
+ 85 C
SMD/SMT
Real Time Clock RV-3029-C3, Real-Time Clock, I C-bus, B Stability, 25ppm @ -40 to +85C (SMD 3.7 x 2.5 x 0.9)
RV-3029-C3-TA-QC-Opt. B
Micro Crystal
1:
¥659.4
2,394 Expected 8/28/2026
Mouser Part # 428-RV3029C3TAQCOPTB
Micro Crystal
Real Time Clock RV-3029-C3, Real-Time Clock, I C-bus, B Stability, 25ppm @ -40 to +85C (SMD 3.7 x 2.5 x 0.9)
2,394 Expected 8/28/2026
1
¥659.4
10
¥496.6
25
¥456.8
100
¥411.9
250
¥406.9
1,000
¥343.8
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
2 B
Backup Switching
1.3 V
5.5 V
- 40 C
+ 85 C
RV-3029-C3
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 32.768 KHZ
AB-RTCMC-32.768kHz-EOZ9-S3-DBT
ABRACON
1:
¥1,405.2
2,061 On Order
Mouser Part # 815-ABMC-327EOZ9S3DB
ABRACON
Real Time Clock 32.768 KHZ
2,061 On Order
View Dates
On Order:
61 Expected 9/15/2026
2,000 Expected 9/22/2026
Factory Lead-Time:
12 Weeks
1
¥1,405.2
10
¥1,088
25
¥1,009.9
100
¥921.9
1,000
¥832.2
2,000
View
250
¥882
500
¥868.7
2,000
¥808.9
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
Backup Switching
1.4 V
5.5 V
- 40 C
+ 85 C
AB-RTCMC
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real Time Clock IC
R2051S02-E2-F
Nisshinbo
1:
¥287.4
2,000 Expected 10/6/2026
Mouser Part # 848-R2051S02E2F
Nisshinbo
Real Time Clock 2-Wire Real Time Clock IC
2,000 Expected 10/6/2026
1
¥287.4
10
¥209.3
25
¥191
100
¥169.4
2,000
¥138
4,000
View
250
¥158
500
¥151.8
1,000
¥138.7
4,000
¥137.4
Buy
Min.: 1 Mult.: 1
Reel :2,000
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
SSOP-16
Backup Switching
750 mV
5.5 V
- 40 C
+ 85 C
R2051S
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN
AM0805AQ
Ambiq
1:
¥114.6
2,869 Expected 9/29/2026
Mouser Part # 222-AM0805AQ
Ambiq
Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN
2,869 Expected 9/29/2026
Buy
Min.: 1 Mult.: 1
Details
Artasie I2C
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7 AEC-Q200
RV-8263-C8 32.768kHz-20PPM-TA-QA
Micro Crystal
1:
¥262.4
4,000 Expected 10/30/2026
Mouser Part # 428-204291-MC01
Micro Crystal
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7 AEC-Q200
4,000 Expected 10/30/2026
1
¥262.4
10
¥192.7
25
¥174.4
100
¥153.5
1,000
¥138.4
2,000
View
250
¥144.2
500
¥138.5
2,000
¥133.5
5,000
¥132
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
SON-8
900 mV
5.5 V
- 40 C
+ 85 C
RV-8263-C8
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8)
M41T56M6F
STMicroelectronics
1:
¥543.1
5,000 Expected 8/19/2026
Mouser Part # 511-M41T56M6F
STMicroelectronics
Real Time Clock Serial 512 (64x8)
5,000 Expected 8/19/2026
1
¥543.1
10
¥405.3
25
¥370.4
100
¥332.2
250
View
2,500
¥282.4
250
¥313.9
500
¥307.3
1,000
¥290.7
2,500
¥282.4
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
64 B
SOIC-8
Backup Switching
4.5 V
5.5 V
- 40 C
+ 85 C
M41T56
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC
+1 image
M41T83SQA6F
STMicroelectronics
1:
¥735.8
3,750 Expected 9/7/2026
Mouser Part # 511-M41T83SQA6F
STMicroelectronics
Real Time Clock Serial I2C bus RTC
3,750 Expected 9/7/2026
1
¥735.8
10
¥558.1
25
¥513.2
100
¥465.1
250
View
1,000
¥415.3
250
¥441.8
500
¥431.9
1,000
¥415.3
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
32 B
QFN-16
Backup Switching
3 V
5.5 V
- 40 C
+ 85 C
M41T83
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 64B SRAM
MCP7940NT-I/MNY
Microchip Technology
1:
¥157.8
9,743 Expected 9/28/2026
Mouser Part # 579-MCP7940NT-I/MNY
Microchip Technology
Real Time Clock I2C GP RTCC 64B SRAM
9,743 Expected 9/28/2026
Buy
Min.: 1 Mult.: 1
Reel :3,300
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
64 B
TDFN-8
Backup Switching
1.8 V
5.5 V
- 40 C
+ 85 C
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock SAMAY A 595-BQ32002D A 595-BQ32002D A 59 A 595-BQ32002D
BQ32002DR
Texas Instruments
1:
¥327.2
7,500 Expected 11/16/2026
Mouser Part # 595-BQ32002DR
Texas Instruments
Real Time Clock SAMAY A 595-BQ32002D A 595-BQ32002D A 59 A 595-BQ32002D
7,500 Expected 11/16/2026
Alternative Packaging
1
¥327.2
10
¥240.8
25
¥219.3
100
¥194.3
2,500
¥162.8
5,000
View
250
¥182.7
500
¥176.1
1,000
¥174.4
5,000
¥159.1
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
SOIC-8
Backup Switching
3 V
3.6 V
- 40 C
+ 85 C
BQ32002
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
DS1744-70IND+
Analog Devices / Maxim Integrated
1:
¥11,068.9
170 On Order
Mouser Part # 700-DS1744-70IND
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
170 On Order
View Dates
On Order:
132 Expected 8/10/2026
38 Expected 8/24/2026
Factory Lead-Time:
14 Weeks
1
¥11,068.9
12
¥9,341.5
24
¥8,791.7
108
¥8,389.7
Buy
Min.: 1 Mult.: 1
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
32 kB
EDIP-28
Integrated Battery
4.5 V
5.5 V
- 40 C
+ 85 C
DS1744
Through Hole
Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
DS1746-70IND+
Analog Devices / Maxim Integrated
1:
¥11,776.5
35 Expected 8/10/2026
Mouser Part # 700-DS1746-70IND
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
35 Expected 8/10/2026
1
¥11,776.5
11
¥9,713.5
22
¥9,185.3
110
¥8,718.6
Buy
Min.: 1 Mult.: 1
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
128 kB
EDIP-32
Integrated Battery
4.5 V
5.5 V
- 40 C
+ 85 C
DS1746
Through Hole
Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
DS1747-70IND+
Analog Devices / Maxim Integrated
1:
¥14,008.9
179 On Order
Mouser Part # 700-DS1747-70IND
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
179 On Order
View Dates
On Order:
170 Expected 8/13/2026
9 Expected 8/14/2026
Factory Lead-Time:
14 Weeks
1
¥14,008.9
10
¥11,560.6
30
¥10,882.9
100
¥10,339.7
250
View
250
Quote
Buy
Min.: 1 Mult.: 1
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
512 kB
Integrated Battery
4.5 V
5.5 V
- 40 C
+ 85 C
DS1747
Through Hole
Tube
Real Time Clock 3.5ppm, I2C RTC with Integrated Crystal and Power Management
MAX31328NELB+
Analog Devices / Maxim Integrated
1:
¥976.7
2,887 On Order
Mouser Part # 700-MAX31328NELB+
Analog Devices / Maxim Integrated
Real Time Clock 3.5ppm, I2C RTC with Integrated Crystal and Power Management
2,887 On Order
View Dates
Alternative Packaging
On Order:
1,417 Expected 8/19/2026
1,470 Expected 8/31/2026
Factory Lead-Time:
30 Weeks
1
¥976.7
10
¥747.5
25
¥689.3
100
¥626.2
Buy
Min.: 1 Mult.: 1
Max.: 100
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
LGA-10
Backup Switching
2.3 V
5.5 V
- 40 C
+ 85 C
MAX31328
SMD/SMT
Tray
Real Time Clock Integrated RC17 w/ NDK Crystal
+1 image
MAX31329NELB+
Analog Devices / Maxim Integrated
1:
¥765.7
2,963 In Stock
Mouser Part # 700-MAX31329NELB+
Analog Devices / Maxim Integrated
Real Time Clock Integrated RC17 w/ NDK Crystal
2,963 In Stock
Alternative Packaging
1
¥765.7
10
¥581.4
25
¥534.8
100
¥483.4
250
View
250
¥446.8
490
¥431.9
980
¥426.9
2,940
¥418.6
Buy
Min.: 1 Mult.: 1
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
LGA-10
Backup Switching
1.6 V
5.5 V
- 40 C
+ 85 C
SMD/SMT
Tray
Real Time Clock RTC with power management
MAX31341CETB+T
Analog Devices / Maxim Integrated
1:
¥446.8
4,990 In Stock
5,000 Expected 8/14/2026
Mouser Part # 700-MAX31341CETB+T
Analog Devices / Maxim Integrated
Real Time Clock RTC with power management
4,990 In Stock
5,000 Expected 8/14/2026
Alternative Packaging
1
¥446.8
10
¥332.2
25
¥304
100
¥274.1
2,500
¥232.5
5,000
View
250
¥259.1
500
¥250.8
1,000
¥245.8
5,000
¥227.6
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
64 B
TDFN-10
Backup Switching
1.6 V
3.6 V
- 40 C
+ 85 C
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring 128 byte SRAM in HVSON12 package.
PCF85053ATKJ
NXP Semiconductors
1:
¥279
6,000 Expected 10/5/2026
Mouser Part # 771-PCF85053ATKJ
NXP Semiconductors
Real Time Clock RTC IC with 400 kHz I2C interface featuring 128 byte SRAM in HVSON12 package.
6,000 Expected 10/5/2026
1
¥279
10
¥204.3
25
¥186
100
¥163.9
250
View
6,000
¥128.2
250
¥154
500
¥148
1,000
¥146.2
2,500
¥137
6,000
¥128.2
Buy
Min.: 1 Mult.: 1
Reel :6,000
Details
PCF85053A
SMD/SMT
Reel, Cut Tape, MouseReel
Japan