Real Time Clock 4096k NV SRAM with Phantom Clock
DS1251WP-120IND+
Analog Devices / Maxim Integrated
1:
$116.10
320 Expected 1/9/2026
Mouser Part No 700-DS1251WP-120IND
Analog Devices / Maxim Integrated
Real Time Clock 4096k NV SRAM with Phantom Clock
320 Expected 1/9/2026
1
$116.10
10
$96.70
25
$91.39
120
$87.58
280
View
280
Quote
Buy
Min.: 1 Mult.: 1
Details
Parallel
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
512 kB
PowerCap Module-34
2.97 V
3.63 V
- 40 C
+ 85 C
DS1251WP
SMD/SMT
Tray
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
DS1747-70+
Analog Devices / Maxim Integrated
1:
$108.99
520 Expected 31/8/2026
Mouser Part No 700-DS1747-70
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
520 Expected 31/8/2026
1
$108.99
10
$90.68
30
$85.34
100
$80.82
250
View
250
Quote
Buy
Min.: 1 Mult.: 1
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
512 kB
EDIP-32
Integrated Battery
4.5 V
5.5 V
0 C
+ 70 C
DS1747
Through Hole
Tube
Real Time Clock 5ppm, I2C Real-Time Clock
DS3231MZ+
Analog Devices / Maxim Integrated
1:
$18.77
3,996 Expected 10/2/2027
Mouser Part No 700-DS3231MZ+
Analog Devices / Maxim Integrated
Real Time Clock 5ppm, I2C Real-Time Clock
3,996 Expected 10/2/2027
Alternative Packaging
1
$18.77
10
$14.74
25
$13.74
100
$12.61
300
$12.09
Buy
Min.: 1 Mult.: 1
Max.: 400
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
SOIC-8
Backup Switching
2.3 V
5.5 V
- 40 C
+ 85 C
DS3231MZ
SMD/SMT
Tube
Real Time Clock Extremely Accurate I C-Integrated RTC/TC
+4 images
DS3231SN#T&R
Analog Devices / Maxim Integrated
1:
$20.79
6,569 On Order
Mouser Part No 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 12/8/2026
4,000 Expected 12/10/2026
Factory Lead Time:
26 Weeks
1
$20.79
10
$16.40
25
$15.26
100
$14.04
250
View
1,000
$12.84
250
$13.89
500
$13.33
1,000
$12.84
Buy
Min.: 1 Mult.: 1
Max.: 1,000
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:
$18.77
3,988 Expected 1/9/2026
Mouser Part No 700-DS3234S#T&R-
Analog Devices / Maxim Integrated
Real Time Clock Extremely Accurate SPI Bus RTC with Inte
3,988 Expected 1/9/2026
Alternative Packaging
1
$18.77
10
$14.74
25
$13.74
100
$12.62
250
View
1,000
$11.51
250
$12.43
500
$12.02
1,000
$11.51
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:
$5.73
7,723 Expected 28/9/2026
Mouser Part No 771-PCA2131TF/Q900Y
NXP Semiconductors
Real Time Clock Automotive RTC module, featuring I2C or SPI interface in HLSON16 package.
7,723 Expected 28/9/2026
1
$5.73
10
$4.41
25
$4.08
100
$3.73
250
View
4,000
$3.24
250
$3.56
500
$3.52
1,000
$3.35
2,000
$3.28
4,000
$3.24
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:
$2.24
44,669 On Order
Mouser Part No 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 17/8/2026
17,500 Expected 18/1/2027
15,000 Expected 15/3/2027
Factory Lead Time:
27 Weeks
1
$2.24
10
$1.65
25
$1.50
100
$1.32
250
View
2,500
$1.12
250
$1.24
500
$1.20
1,000
$1.18
2,500
$1.12
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:
$4.98
33,570 Expected 10/8/2026
Mouser Part No 771-PCF2131TFY
NXP Semiconductors
Real Time Clock RTC Module with I2C or SPI interface featuring backup battery switch-over function in HLSON16 package.
33,570 Expected 10/8/2026
1
$4.98
10
$3.75
25
$3.44
100
$3.10
250
View
4,000
$2.56
250
$2.92
500
$2.86
1,000
$2.77
2,000
$2.73
4,000
$2.56
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:
$7.24
6,860 On Order
Mouser Part No 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 29/12/2026
2,940 Expected 8/1/2027
Factory Lead Time:
22 Weeks
1
$7.24
10
$5.51
25
$5.09
100
$4.61
250
View
250
$4.39
500
$4.20
980
$4.12
2,940
$4.05
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:
$3.86
9,642 On Order
Mouser Part No 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 3/9/2026
5,000 Expected 25/9/2026
Factory Lead Time:
22 Weeks
1
$3.86
10
$2.88
25
$2.64
100
$2.37
2,500
$2.04
5,000
View
250
$2.24
500
$2.18
1,000
$2.14
5,000
$2.00
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:
$4.31
6,892 On Order
Mouser Part No 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 11/9/2026
4,000 Expected 9/10/2026
Factory Lead Time:
12 Weeks
1
$4.31
10
$3.24
25
$2.96
100
$2.67
1,000
$2.42
2,000
View
250
$2.53
500
$2.48
2,000
$2.38
5,000
$2.34
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-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:
$5.40
2,394 Expected 28/8/2026
Mouser Part No 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 28/8/2026
1
$5.40
10
$4.07
25
$3.74
100
$3.37
250
$3.33
1,000
$2.82
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:
$11.51
2,061 On Order
Mouser Part No 815-ABMC-327EOZ9S3DB
ABRACON
Real Time Clock 32.768 KHZ
2,061 On Order
View Dates
On Order:
61 Expected 15/9/2026
2,000 Expected 22/9/2026
Factory Lead Time:
12 Weeks
1
$11.51
10
$8.91
25
$8.27
100
$7.55
1,000
$6.81
2,000
View
250
$7.22
500
$7.11
2,000
$6.62
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:
$2.35
2,000 Expected 6/10/2026
Mouser Part No 848-R2051S02E2F
Nisshinbo
Real Time Clock 2-Wire Real Time Clock IC
2,000 Expected 6/10/2026
1
$2.35
10
$1.71
25
$1.56
100
$1.39
2,000
$1.13
4,000
View
250
$1.29
500
$1.24
1,000
$1.14
4,000
$1.12
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:
$0.938
2,869 Expected 29/9/2026
Mouser Part No 222-AM0805AQ
Ambiq
Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN
2,869 Expected 29/9/2026
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:
$2.15
4,000 Expected 30/10/2026
Mouser Part No 428-204291-MC01
Micro Crystal
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7 AEC-Q200
4,000 Expected 30/10/2026
1
$2.15
10
$1.58
25
$1.43
100
$1.26
1,000
$1.13
2,000
View
250
$1.18
500
$1.13
2,000
$1.09
5,000
$1.08
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
RV-8263-C7-32.768KHZ-20PPM-TA-QA
Micro Crystal
1:
$2.26
1,994 Expected 20/11/2026
Mouser Part No 428-8263C7328K20PTQA
Micro Crystal
Real Time Clock
1,994 Expected 20/11/2026
1
$2.26
10
$1.66
25
$1.50
100
$1.32
250
View
250
$1.24
500
$1.21
1,000
$1.19
2,000
$1.10
5,000
$1.08
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 Serial 512 (64x8)
M41T56M6F
STMicroelectronics
1:
$4.45
5,000 Expected 19/8/2026
Mouser Part No 511-M41T56M6F
STMicroelectronics
Real Time Clock Serial 512 (64x8)
5,000 Expected 19/8/2026
1
$4.45
10
$3.32
25
$3.03
100
$2.72
250
View
2,500
$2.31
250
$2.57
500
$2.52
1,000
$2.38
2,500
$2.31
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:
$6.02
3,750 Expected 7/9/2026
Mouser Part No 511-M41T83SQA6F
STMicroelectronics
Real Time Clock Serial I2C bus RTC
3,750 Expected 7/9/2026
1
$6.02
10
$4.57
25
$4.20
100
$3.81
250
View
1,000
$3.40
250
$3.62
500
$3.54
1,000
$3.40
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:
$1.29
9,743 Expected 28/9/2026
Mouser Part No 579-MCP7940NT-I/MNY
Microchip Technology
Real Time Clock I2C GP RTCC 64B SRAM
9,743 Expected 28/9/2026
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:
$2.68
7,500 Expected 16/11/2026
Mouser Part No 595-BQ32002DR
Texas Instruments
Real Time Clock SAMAY A 595-BQ32002D A 595-BQ32002D A 59 A 595-BQ32002D
7,500 Expected 16/11/2026
Alternative Packaging
1
$2.68
10
$1.97
25
$1.80
100
$1.59
2,500
$1.33
5,000
View
250
$1.50
500
$1.44
1,000
$1.43
5,000
$1.30
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:
$90.63
170 On Order
Mouser Part No 700-DS1744-70IND
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
170 On Order
View Dates
On Order:
122 Expected 18/8/2026
48 Expected 24/8/2026
Factory Lead Time:
14 Weeks
1
$90.63
12
$76.49
24
$71.98
108
$68.69
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:
$96.42
35 Expected 17/8/2026
Mouser Part No 700-DS1746-70IND
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
35 Expected 17/8/2026
1
$96.42
11
$79.53
22
$75.21
110
$71.39
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
DS1746W-120+
Analog Devices / Maxim Integrated
1:
$86.17
109 On Order
Mouser Part No 700-DS1746W-120
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
109 On Order
View Dates
On Order:
21 Expected 25/8/2026
88 Expected 15/9/2026
Factory Lead Time:
14 Weeks
1
$86.17
11
$70.96
22
$66.98
110
$63.74
253
View
253
$63.32
506
Quote
Buy
Min.: 1 Mult.: 1
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
128 kB
EDIP-32
Integrated Battery
2.97 V
3.63 V
0 C
+ 70 C
DS1746W
Through Hole
Tube
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
DS1747-70IND+
Analog Devices / Maxim Integrated
1:
$114.70
179 On Order
Mouser Part No 700-DS1747-70IND
Analog Devices / Maxim Integrated
Real Time Clock Y2K-Compliant, Nonvolatile Timekeeping R
179 On Order
View Dates
On Order:
170 Expected 13/8/2026
9 Expected 14/8/2026
Factory Lead Time:
14 Weeks
1
$114.70
10
$94.66
30
$89.11
100
$84.66
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
