Real Time Clock REAL TIME CLOCK AND TMP COMP CRYSTL INLD
ISL12020MIRZ
Renesas / Intersil
1:
$8.06
4,240 Expected 3/11/2027
Mouser Part # 968-ISL12020MIRZ
Renesas / Intersil
Real Time Clock REAL TIME CLOCK AND TMP COMP CRYSTL INLD
4,240 Expected 3/11/2027
Alternative Packaging
1
$8.06
10
$6.13
25
$5.51
106
$5.19
265
View
265
$4.88
530
$4.82
1,007
$4.70
2,544
$4.58
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:
$5.32
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
$5.32
10
$4.05
25
$3.74
100
$3.39
250
View
250
$3.23
500
$3.09
980
$3.03
2,940
$2.98
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:
$2.83
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 8/27/2026
5,000 Expected 9/22/2026
Factory Lead-Time:
22 Weeks
1
$2.83
10
$2.14
25
$1.93
100
$1.73
2,500
$1.47
5,000
View
250
$1.64
500
$1.59
1,000
$1.55
5,000
$1.44
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:
$3.17
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
$3.17
10
$2.38
25
$2.18
100
$1.96
1,000
$1.78
2,000
View
250
$1.86
500
$1.82
2,000
$1.75
5,000
$1.72
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:
$3.97
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
$3.97
10
$2.99
25
$2.75
100
$2.48
250
$2.45
1,000
$2.07
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 I2C GP RTCC 1Kb EE 64B SRAM EUI-48
MCP79411T-I/MNY
Microchip Technology
1:
$1.27
3,424 On Order
Mouser Part # 579-MCP79411TIMNY
Microchip Technology
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48
3,424 On Order
View Dates
On Order:
3,300 Expected 8/31/2026
124 Expected 9/2/2026
Factory Lead-Time:
12 Weeks
Buy
Min.: 1 Mult.: 1
Reel :3,300
Details
I2C
YY-MM-DD-dd
HH:MM:SS (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 RTC IC with 400 kHz I2C interface featuring 128 byte SRAM in HVSON12 package.
PCF85053ATKJ
NXP Semiconductors
1:
$1.69
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
$1.69
10
$1.24
25
$1.12
100
$0.987
250
View
6,000
$0.781
250
$0.927
500
$0.891
1,000
$0.88
2,500
$0.849
6,000
$0.781
Buy
Min.: 1 Mult.: 1
Reel :6,000
Details
PCF85053A
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 32.768 KHZ
AB-RTCMC-32.768kHz-EOZ9-S3-DBT
ABRACON
1:
$8.40
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 9/11/2026
2,000 Expected 9/22/2026
Factory Lead-Time:
12 Weeks
1
$8.40
10
$6.50
25
$6.02
100
$5.51
250
View
1,000
$4.97
250
$5.26
500
$5.11
1,000
$4.97
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 4096k NV SRAM with Phantom Clock
DS1251WP-120IND+
Analog Devices / Maxim Integrated
Restricted Availability
Mouser Part # 700-DS1251WP-120IND
Analog Devices / Maxim Integrated
Real Time Clock 4096k NV SRAM with Phantom Clock
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 Real-Time Clocks
DS12887+
Analog Devices / Maxim Integrated
Restricted Availability
Mouser Part # 700-DS12887
Analog Devices / Maxim Integrated
Real Time Clock Real-Time Clocks
Details
Multiplexed
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
114 B
EDIP-24
Integrated Battery
4.5 V
5.5 V
0 C
+ 70 C
DS12887
Through Hole
Tube
Real Time Clock SERIAL RTC 1.8-3.3V HESR USOP TRL
DS1339BU+T
Analog Devices / Maxim Integrated
Restricted Availability
Mouser Part # 700-DS1339BU+T
Analog Devices / Maxim Integrated
Real Time Clock SERIAL RTC 1.8-3.3V HESR USOP TRL
Alternative Packaging
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
uSOP-8
Backup Switching
1.71 V
5.5 V
- 40 C
+ 85 C
DS1339BU
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 5ppm, I2C Real-Time Clock
DS3231MZ+
Analog Devices / Maxim Integrated
Restricted Availability
Mouser Part # 700-DS3231MZ+
Analog Devices / Maxim Integrated
Real Time Clock 5ppm, I2C Real-Time Clock
Alternative Packaging
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 Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN
AM0805AQ
Ambiq
1:
$0.69
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:
$1.58
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
$1.58
10
$1.16
25
$1.05
100
$0.924
1,000
$0.833
2,000
View
250
$0.868
500
$0.834
2,000
$0.804
5,000
$0.795
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:
$1.66
2,000 Expected 11/20/2026
Mouser Part # 428-8263C7328K20PTQA
Micro Crystal
Real Time Clock
2,000 Expected 11/20/2026
1
$1.66
10
$1.22
25
$1.10
100
$0.97
250
View
250
$0.911
500
$0.887
1,000
$0.874
2,000
$0.809
5,000
$0.791
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:
$10.00
2,000 On Order
Mouser Part # 511-M41T81SMY6F
STMicroelectronics
Real Time Clock Serial Access Real Time Clock
2,000 On Order
1
$10.00
10
$7.79
25
$7.23
100
$6.63
1,000
$6.01
2,000
View
250
$6.33
500
$6.26
2,000
$5.82
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:
$4.43
3,750 Expected 9/4/2026
Mouser Part # 511-M41T83SQA6F
STMicroelectronics
Real Time Clock Serial I2C bus RTC
3,750 Expected 9/4/2026
1
$4.43
10
$3.36
25
$3.09
100
$2.80
250
View
1,000
$2.50
250
$2.66
500
$2.60
1,000
$2.50
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)
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:
$0.98
9,743 Expected 9/3/2026
Mouser Part # 579-MCP7940NT-I/MNY
Microchip Technology
Real Time Clock I2C GP RTCC 64B SRAM
9,743 Expected 9/3/2026
1
$0.98
10
$0.977
250
$0.95
1,000
$0.94
3,300
$0.83
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 2-Wire Real Time Clock IC
R2051S02-E2-F
Nisshinbo
1:
$1.73
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
$1.73
10
$1.26
25
$1.15
100
$1.06
2,000
$0.832
4,000
View
1,000
$0.835
4,000
$0.827
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 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
RV5C338A-E2-F
Nisshinbo
1:
$1.64
1,980 Expected 11/25/2026
Mouser Part # 848-RV5C338A-E2-F
Nisshinbo
Real Time Clock 3-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION
1,980 Expected 11/25/2026
1
$1.64
10
$1.20
25
$1.09
100
$1.03
2,000
$0.79
4,000
View
1,000
$0.793
4,000
$0.784
Buy
Min.: 1 Mult.: 1
Reel :2,000
Details
SSOP-10
RV5C338A
Reel, Cut Tape
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
ISL12022IBZ-T
Renesas / Intersil
1:
$5.22
2,467 Expected 1/12/2027
Mouser Part # 968-ISL12022IBZ-T
Renesas / Intersil
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L
2,467 Expected 1/12/2027
Alternative Packaging
1
$5.22
10
$3.97
25
$3.66
100
$3.32
250
View
2,500
$3.07
250
$3.16
500
$3.08
2,500
$3.07
Buy
Min.: 1 Mult.: 1
Reel :2,500
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
Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLKRTC IN
+1 image
ISL1219IUZ
Renesas / Intersil
1:
$4.08
1,822 On Order
Mouser Part # 968-ISL1219IUZ
Renesas / Intersil
Real Time Clock REAL TIME CLKRTC IN
1,822 On Order
View Dates
Alternative Packaging
On Order:
842 Expected 9/7/2026
980 Expected 9/18/2026
Factory Lead-Time:
22 Weeks
1
$4.08
10
$3.08
25
$2.83
100
$2.64
250
View
250
$2.50
500
$2.39
980
$2.23
2,940
$2.19
Buy
Min.: 1 Mult.: 1
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
2 B
MSOP-10
Backup Switching
2.7 V
5.5 V
- 40 C
+ 85 C
ISL1219
SMD/SMT
Tube
Real Time Clock .9RTC BASE
1338-31DCGI
Renesas Electronics
1:
$3.67
2,036 On Order
Mouser Part # 972-1338-31DCGI
Renesas Electronics
Real Time Clock .9RTC BASE
2,036 On Order
Alternative Packaging
Buy
Min.: 1 Mult.: 1
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
56 B
SOIC-8
Backup Switching
1.3 V
3.7 V
- 40 C
+ 85 C
1338
SMD/SMT
Tube
Real Time Clock Real Time Clock
+1 image
1339-31DVGI8
Renesas Electronics
1:
$3.23
2,500 Expected 7/12/2027
Mouser Part # 972-1339-31DVGI8
Renesas Electronics
Real Time Clock Real Time Clock
2,500 Expected 7/12/2027
Alternative Packaging
1
$3.23
10
$2.41
25
$2.35
2,500
$1.84
Buy
Min.: 1 Mult.: 1
Reel :2,500
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
TSSOP-8
Backup Switching
1.3 V
3.7 V
- 40 C
+ 85 C
1339
SMD/SMT
Reel, Cut Tape
Real Time Clock 256K (32Kx8) 70ns
M48T37Y-70MH1F
STMicroelectronics
1:
$20.51
28 In Stock
Mouser Part # 511-M48T37Y-70MH1F
STMicroelectronics
Real Time Clock 256K (32Kx8) 70ns
28 In Stock
1
$20.51
10
$17.66
25
$16.53
100
$14.59
250
View
936
$13.53
250
$14.23
500
$13.55
936
$13.53
1,872
Quote
Buy
Min.: 1 Mult.: 1
Reel :936
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
256 kB
SOIC-44
Backup Switching
4.5 V
5.5 V
0 C
+ 70 C
M48T37Y
SMD/SMT
Reel, Cut Tape, MouseReel
