Real Time Clock Real-Time Clock I2C interface with power management, -40 to +85 C, 16-pin QFN
AM1805AQ
Ambiq
1:
£0.596
29,500 On Order
Mouser Part No 222-AM1805AQ
Ambiq
Real Time Clock Real-Time Clock I2C interface with power management, -40 to +85 C, 16-pin QFN
29,500 On Order
View Dates
On Order:
8,500 Expected 11/09/2026
6,000 Expected 14/09/2026
15,000 Expected 07/12/2026
Factory Lead Time:
24 Weeks
Buy
Min.: 1 Mult.: 1
Details
Artasie I2C w/ Power Management
Real Time Clock 32.768 kHz +/-20 PPM I2C -40/+85C
RV-4162-C7-32.768kHz-20PPM-TA-QC
Micro Crystal
1:
£2.51
16,002 Expected 04/09/2026
Mouser Part No 428-200007-MG01
Micro Crystal
Real Time Clock 32.768 kHz +/-20 PPM I2C -40/+85C
16,002 Expected 04/09/2026
1
£2.51
10
£1.87
25
£1.69
100
£1.53
1,000
£1.34
2,000
View
250
£1.44
500
£1.40
2,000
£1.33
5,000
£1.29
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)
No Backup Switching
1 V
4.4 V
- 40 C
+ 85 C
RV-4162-C7
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C
RV-8803-C7-32.768KHZ-3PPM-TA-QC
Micro Crystal
1:
£2.58
92,793 On Order
Mouser Part No 428-202677-MG01
Micro Crystal
Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C
92,793 On Order
View Dates
On Order:
48,793 Pending
44,000 Expected 30/04/2027
Factory Lead Time:
23 Weeks
1
£2.58
10
£2.08
25
£1.91
100
£1.72
1,000
£1.55
2,000
View
250
£1.62
500
£1.60
2,000
£1.53
5,000
£1.50
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)
No Backup Switching
1.5 V
5.5 V
- 40 C
+ 85 C
RV-8803-C7
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C
RV-8803-C7-32.768k-3PPM-TA-QA
Micro Crystal
1:
£2.95
20,000 On Order
Mouser Part No 428-203035-MG01
Micro Crystal
Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C
20,000 On Order
1
£2.95
10
£2.21
25
£2.02
100
£1.81
1,000
£1.60
2,000
View
250
£1.72
500
£1.68
2,000
£1.55
5,000
£1.52
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)
No Backup Switching
1.5 V
5.5 V
- 40 C
+ 85 C
RV-8803-C7
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 1ppm
RV-3028-C7 32.768kHz 1ppm TA QC
Micro Crystal
1:
£2.32
205,000 On Order
Mouser Part No 428-203591-MG01
Micro Crystal
Real Time Clock 32.768kHz I2C Time Acc. 1ppm
205,000 On Order
View Dates
On Order:
101,000 Expected 23/04/2027
104,000 Expected 21/05/2027
Factory Lead Time:
34 Weeks
1
£2.32
10
£1.72
25
£1.56
100
£1.41
250
View
1,000
£1.29
250
£1.32
500
£1.30
1,000
£1.29
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
2 B
Backup Switching
1.2 V
5.5 V
- 40 C
+ 85 C
RV-3028
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 1ppm
RV-3028-C7 32.768kHz 1ppm TA QA
Micro Crystal
1:
£2.37
6,613 In Stock
23,284 On Order
Mouser Part No 428-203603-MG01
Micro Crystal
Real Time Clock 32.768kHz I2C Time Acc. 1ppm
6,613 In Stock
23,284 On Order
View Dates
Stock:
6,613 Can Dispatch Immediately
On Order:
11,284 Expected 09/09/2026
12,000 Expected 16/04/2027
Factory Lead Time:
23 Weeks
1
£2.37
10
£1.77
25
£1.62
100
£1.45
1,000
£1.31
2,000
View
250
£1.37
500
£1.34
2,000
£1.28
5,000
£1.26
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
2 B
Backup Switching
1.2 V
5.5 V
- 40 C
+ 85 C
RV-3028
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 2.0-5.5V 512 (64x8)
M41T81SM6F
STMicroelectronics
1:
£2.12
18,995 On Order
Mouser Part No 511-M41T81SM6F
STMicroelectronics
Real Time Clock 2.0-5.5V 512 (64x8)
18,995 On Order
View Dates
Alternative Packaging
On Order:
3,995 Expected 10/09/2026
7,500 Expected 09/10/2026
7,500 Expected 16/08/2027
Factory Lead Time:
30 Weeks
1
£2.12
10
£1.61
25
£1.48
100
£1.35
250
View
2,500
£1.15
250
£1.28
500
£1.26
1,000
£1.22
2,500
£1.15
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
20 B
SOIC-8
Backup Switching
2.7 V
5.5 V
- 40 C
+ 85 C
M41T81S
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Battery Swtchovr-RTC
+1 image
M41T83RQA6F
STMicroelectronics
1:
£3.33
20,800 On Order
Mouser Part No 511-M41T83RQA6F
STMicroelectronics
Real Time Clock Battery Swtchovr-RTC
20,800 On Order
View Dates
On Order:
1,800 Expected 28/12/2026
8,000 Expected 01/02/2027
11,000 Expected 30/08/2027
Factory Lead Time:
30 Weeks
1
£3.33
10
£2.52
25
£2.32
100
£2.10
250
View
1,000
£1.88
250
£2.00
500
£1.96
1,000
£1.88
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
2.7 V
5.5 V
- 40 C
+ 85 C
M41T83
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8)
M41T94MQ6F
STMicroelectronics
1:
£4.10
7,972 On Order
Mouser Part No 511-M41T94MQ6F
STMicroelectronics
Real Time Clock Serial 512 (64x8)
7,972 On Order
View Dates
On Order:
2,972 Expected 04/09/2026
5,000 Expected 28/04/2027
Factory Lead Time:
30 Weeks
1
£4.10
10
£3.05
25
£2.81
100
£2.55
250
View
2,500
£2.24
250
£2.43
500
£2.35
1,000
£2.32
2,500
£2.24
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
Serial
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
64 B
SO-16
Backup Switching
2.7 V
5.5 V
- 40 C
+ 85 C
M41T94
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:
£1.52
14,995 On Order
Mouser Part No 595-BQ32002DR
Texas Instruments
Real Time Clock SAMAY A 595-BQ32002D A 595-BQ32002D A 59 A 595-BQ32002D
14,995 On Order
View Dates
Alternative Packaging
On Order:
7,495 Expected 12/11/2026
7,500 Expected 03/12/2026
Factory Lead Time:
16 Weeks
1
£1.52
10
£1.11
25
£1.01
100
£0.899
2,500
£0.759
5,000
View
250
£0.849
500
£0.818
1,000
£0.811
5,000
£0.744
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 RX4901CE XB D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR
RX4901CE XB D06
Epson Timing
1:
£3.39
238 In Stock
Mouser Part No 732-RX4901CEXBD06
Epson Timing
Real Time Clock RX4901CE XB D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR
238 In Stock
1
£3.39
10
£2.56
25
£2.35
100
£2.12
2,000
£1.77
4,000
View
250
£2.02
500
£1.99
1,000
£1.92
4,000
£1.75
Buy
Min.: 1 Mult.: 1
Reel :2,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
256 B
Backup Switching
1.6 V
5.5 V
- 40 C
+ 105 C
RX4901CE
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 1K TR
+2 images
RX-8803LC:UB0 PURE SN
Epson Timing
1:
£4.23
98 In Stock
Mouser Part No 732-X8803LCUB0PURESN
Epson Timing
Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 1K TR
98 In Stock
Alternative Packaging
1
£4.23
10
£3.22
25
£2.98
100
£2.70
1,000
£2.33
2,000
View
250
£2.57
500
£2.51
2,000
£2.30
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
No Backup Switching
1.6 V
5.5 V
- 40 C
+ 85 C
RX-8803LC
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:
£3.27
8,000 Expected 28/09/2026
Mouser Part No 771-PCA2131TF/Q900Y
NXP Semiconductors
Real Time Clock Automotive RTC module, featuring I2C or SPI interface in HLSON16 package.
8,000 Expected 28/09/2026
1
£3.27
10
£2.50
25
£2.30
100
£2.09
250
View
4,000
£1.79
250
£1.98
500
£1.96
1,000
£1.85
2,000
£1.80
4,000
£1.79
Buy
Min.: 1 Mult.: 1
Reel :4,000
Details
PCA2131
AEC-Q100
Reel, Cut Tape
Real Time Clock 32.768 KHZ 3-OUTPUT
AB0805-T3
ABRACON
1:
£2.49
11,897 Expected 28/12/2026
Mouser Part No 815-AB0805-T3
ABRACON
Real Time Clock 32.768 KHZ 3-OUTPUT
11,897 Expected 28/12/2026
1
£2.49
10
£1.85
25
£1.69
100
£1.53
250
View
3,000
£1.20
250
£1.43
500
£1.41
1,000
£1.34
3,000
£1.20
Buy
Min.: 1 Mult.: 1
Reel :3,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
256 B
QFN-16
Backup Switching
1.7 V
3.6 V
- 40 C
+ 85 C
AB08x5
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLOCK AND TMP COMP CRYSTL INLD
ISL12020MIRZ
Renesas / Intersil
1:
£6.05
4,240 Expected 11/03/2027
Mouser Part No 968-ISL12020MIRZ
Renesas / Intersil
Real Time Clock REAL TIME CLOCK AND TMP COMP CRYSTL INLD
4,240 Expected 11/03/2027
Alternative Packaging
1
£6.05
10
£4.60
25
£4.14
106
£3.89
265
View
265
£3.67
530
£3.62
1,007
£3.53
2,544
£3.44
Buy
Min.: 1 Mult.: 1
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
128 B
DFN-20
Backup Switching
2.7 V
5.5 V
- 40 C
+ 85 C
ISL12020
SMD/SMT
Tube
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
ISL12022IBZ
Renesas / Intersil
1:
£4.00
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 08/01/2027
Factory Lead Time:
22 Weeks
1
£4.00
10
£3.04
25
£2.81
100
£2.55
250
View
250
£2.43
500
£2.32
980
£2.28
2,940
£2.23
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 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:
£3.20
889 In Stock
6,000 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
889 In Stock
6,000 On Order
View Dates
Stock:
889 Can Dispatch Immediately
On Order:
2,000 Expected 11/09/2026
4,000 Expected 09/10/2026
Factory Lead Time:
12 Weeks
1
£3.20
10
£2.40
25
£2.20
100
£1.98
1,000
£1.81
2,000
View
250
£1.88
500
£1.85
2,000
£1.77
5,000
£1.75
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:
£3.75
2,394 Expected 10/09/2026
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 10/09/2026
1
£3.75
10
£2.82
25
£2.59
100
£2.34
250
£2.31
1,000
£1.96
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:
£6.30
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 11/09/2026
2,000 Expected 22/09/2026
Factory Lead Time:
12 Weeks
1
£6.30
10
£4.88
25
£4.52
100
£4.14
250
View
1,000
£3.73
250
£3.95
500
£3.83
1,000
£3.73
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 Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN
AM0805AQ
Ambiq
1:
£0.537
2,869 Expected 29/09/2026
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 29/09/2026
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:
£1.49
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
£1.49
10
£1.09
25
£0.986
100
£0.871
1,000
£0.786
2,000
View
250
£0.818
500
£0.787
2,000
£0.758
5,000
£0.75
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:
£1.56
2,000 Expected 20/11/2026
Mouser Part No 428-8263C7328K20PTQA
Micro Crystal
Real Time Clock
2,000 Expected 20/11/2026
1
£1.56
10
£1.15
25
£1.04
100
£0.917
250
View
250
£0.859
500
£0.836
1,000
£0.824
2,000
£0.763
5,000
£0.746
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 Access Real Time Clock
M41T81SMY6F
STMicroelectronics
1:
£7.46
2,000 On Order
Mouser Part No 511-M41T81SMY6F
STMicroelectronics
Real Time Clock Serial Access Real Time Clock
2,000 On Order
1
£7.46
10
£5.81
25
£5.39
100
£4.93
1,000
£4.47
2,000
View
250
£4.69
500
£4.58
2,000
£4.23
5,000
Quote
Buy
Min.: 1 Mult.: 1
Reel :1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
20 B
SOX-18
Backup Switching
2.7 V
5.5 V
- 40 C
+ 85 C
M41T81S
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC
+1 image
M41T83SQA6F
STMicroelectronics
1:
£3.32
2,000 In Stock
750 Expected 04/09/2026
Mouser Part No 511-M41T83SQA6F
STMicroelectronics
Real Time Clock Serial I2C bus RTC
2,000 In Stock
750 Expected 04/09/2026
1
£3.32
10
£2.51
25
£2.30
100
£2.09
1,000
£1.78
2,000
View
250
£1.98
500
£1.96
2,000
£1.74
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:
£0.736
9,743 Expected 03/09/2026
Mouser Part No 579-MCP7940NT-I/MNY
Microchip Technology
Real Time Clock I2C GP RTCC 64B SRAM
9,743 Expected 03/09/2026
1
£0.736
10
£0.733
250
£0.713
1,000
£0.705
3,300
£0.644
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
