Real Time Clock I2CAL TIME CLK/CLNDR W/EVENT DETCT 10LD
+1 image
ISL1209IU10Z-TK
Renesas / Intersil
1:
¥666.1
2,063 In Stock
Mouser Part #
968-ISL1209IU10Z-TK
Renesas / Intersil
Real Time Clock I2CAL TIME CLK/CLNDR W/EVENT DETCT 10LD
2,063 In Stock
Alternative Packaging
1
¥666.1
10
¥501.6
25
¥461.8
100
¥416.9
250
View
1,000
¥350.5
250
¥395.3
500
¥390.3
1,000
¥350.5
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Mult.: 1
Reel :
1,000
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
ISL1209
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 256K (32Kx8) 70ns
+3 images
M48T35Y-70MH1F
STMicroelectronics
1:
¥4,001.3
610 In Stock
Mouser Part #
511-M48T35Y-70MH1F
STMicroelectronics
Real Time Clock 256K (32Kx8) 70ns
610 In Stock
1
¥4,001.3
10
¥3,199.1
25
¥2,998.1
100
¥2,778.9
250
View
936
¥2,559.6
250
¥2,672.5
500
¥2,561.3
936
¥2,559.6
4,680
Quote
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Reel :
936
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
256 kB
SOX-28
Backup Switching
4.5 V
5.5 V
0 C
+ 70 C
M48T35Y
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock LW PWR RTC W/RESEAL 8LD
ISL12008IB8Z-T
Renesas / Intersil
1:
¥536.5
1,154 In Stock
Mouser Part #
968-ISL12008IB8Z-T
Renesas / Intersil
Real Time Clock LW PWR RTC W/RESEAL 8LD
1,154 In Stock
Alternative Packaging
1
¥536.5
10
¥400.3
25
¥365.4
100
¥328.9
2,500
¥277.4
5,000
View
250
¥310.6
500
¥304
1,000
¥287.4
5,000
¥272.4
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Min.: 1
Mult.: 1
Reel :
2,500
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
SOIC-8
Backup Switching
2.7 V
5.5 V
- 40 C
+ 85 C
ISL12008
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Low-Pwr serial RTC W/ battry switchover
M41T01M6F
STMicroelectronics
1:
¥637.8
2,355 In Stock
Mouser Part #
511-M41T01M6F
STMicroelectronics
Real Time Clock Low-Pwr serial RTC W/ battry switchover
2,355 In Stock
1
¥637.8
10
¥490
25
¥438.5
100
¥398.6
250
View
2,500
¥323.9
250
¥378.7
500
¥372.1
1,000
¥358.8
2,500
¥323.9
Buy
Min.: 1
Mult.: 1
Reel :
2,500
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
8 B
SOIC-8
Backup Switching
2 V
5.5 V
- 40 C
+ 85 C
M41T01
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial 160 (20x8)
M41T80M6F
STMicroelectronics
1:
¥946.8
2,400 In Stock
Mouser Part #
511-M41T80M6F
STMicroelectronics
Real Time Clock Serial 160 (20x8)
2,400 In Stock
1
¥946.8
10
¥732.5
25
¥677.7
100
¥612.9
250
View
2,500
¥551.5
250
¥584.7
500
¥566.4
1,000
¥558.1
2,500
¥551.5
5,000
Quote
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)
20 B
SOIC-8
No Backup Switching
2 V
5.5 V
- 40 C
+ 85 C
M41T80
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC
+1 image
M41T93ZQA6F
STMicroelectronics
1:
¥1,279
1,044 In Stock
Mouser Part #
511-M41T93ZQA6F
STMicroelectronics
Real Time Clock Serial SPI bus RTC
1,044 In Stock
1
¥1,279
10
¥1,018.2
25
¥913.6
100
¥833.8
1,000
¥725.9
2,000
View
250
¥787.3
500
¥785.7
2,000
¥720.9
5,000
Quote
Buy
Min.: 1
Mult.: 1
Reel :
1,000
Details
Serial
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
32 B
Backup Switching
2.38 V
5.5 V
- 40 C
+ 85 C
M41T93
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC
M41T83ZMY6F
STMicroelectronics
1:
¥1,232.5
765 In Stock
Mouser Part #
511-M41T83ZMY6F
STMicroelectronics
Real Time Clock Serial I2C bus RTC
765 In Stock
1
¥1,232.5
10
¥950.1
25
¥880.3
100
¥802.3
1,000
¥694.3
2,000
View
250
¥742.5
2,000
¥684.3
Buy
Min.: 1
Mult.: 1
Reel :
1,000
Details
Serial
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
32 B
Backup Switching
2.38 V
5.5 V
- 40 C
+ 85 C
M41T83
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLKRTC IN
+1 image
ISL1219IUZ-T
Renesas / Intersil
1:
¥674.4
2,500 In Stock
Mouser Part #
968-ISL1219IUZ-T
Renesas / Intersil
Real Time Clock REAL TIME CLKRTC IN
2,500 In Stock
Alternative Packaging
1
¥674.4
10
¥508.3
25
¥466.7
100
¥421.9
250
View
2,500
¥358.8
250
¥400.3
500
¥397
1,000
¥373.7
2,500
¥358.8
Buy
Min.: 1
Mult.: 1
Reel :
2,500
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
Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 6ppm
RV-3129-C3 32.768kHz OPTION A TA QC
Micro Crystal
1:
¥719.2
172 In Stock
9,000 On Order
Mouser Part #
428-203688-MG01
Micro Crystal
Real Time Clock 32.768kHz I2C Time Acc. 6ppm
172 In Stock
9,000 On Order
View Dates
On Order:
4,000 Expected 9/18/2026
5,000 Expected 10/29/2026
Factory Lead-Time:
12 Weeks
1
¥719.2
10
¥541.5
25
¥498.3
100
¥448.5
1,000
¥435.2
2,000
View
250
¥435.2
2,000
¥403.6
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Mult.: 1
Reel :
1,000
Details
I2C
YY-MM-DD-dd
HH:MM:SS (24 hr)
8 B
Backup Switching
1.3 V
5.5 V
- 40 C
+ 85 C
RV-3129
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real Time Clock IC
R2223T-E2-F
Nisshinbo
1:
¥275.7
1,680 In Stock
Mouser Part #
848-R2223TE2F
Nisshinbo
Real Time Clock 2-Wire Real Time Clock IC
1,680 In Stock
1
¥275.7
10
¥202.6
25
¥182.7
100
¥162.3
2,000
¥126.6
4,000
View
250
¥152.5
500
¥146.7
1,000
¥142.7
4,000
¥123.9
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)
TSSOP-10
No Backup Switching
1.5 V
5.5 V
- 40 C
+ 85 C
R2223T
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real Time Clock IC
RS5C372B-E2-F
Nisshinbo
1:
¥272.4
999 In Stock
Mouser Part #
848-RS5C372B-E2-F
Nisshinbo
Real Time Clock 2-Wire Real Time Clock IC
999 In Stock
1
¥272.4
10
¥199.3
25
¥181
100
¥159.6
2,000
¥131.2
4,000
View
250
¥150
500
¥144.2
1,000
¥131.7
4,000
¥130.2
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)
16 B
SSOP-8
Backup Switching
2 V
6 V
- 40 C
+ 85 C
RS5C372
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 1Kb EE 64B SRAM WD TED EUI-64
MCP795W12-I/SL
Microchip Technology
1:
¥307.3
717 In Stock
Mouser Part #
579-MCP795W12-I/SL
Microchip Technology
Real Time Clock 1Kb EE 64B SRAM WD TED EUI-64
717 In Stock
Alternative Packaging
Buy
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Details
SPI
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
1 kB
SOIC-14
Backup Switching
1.8 V
5.5 V
- 40 C
+ 85 C
SMD/SMT
Tube
Real Time Clock 4-wire Serial Interface
RV5C348B-E2-F
Nisshinbo
1:
¥272.4
1,675 In Stock
Mouser Part #
848-RV5C348B-E2-F
Nisshinbo
Real Time Clock 4-wire Serial Interface
1,675 In Stock
1
¥272.4
10
¥199.3
25
¥181
100
¥159.6
2,000
¥133.2
4,000
View
250
¥150
500
¥144.2
1,000
¥134.4
4,000
¥132
Buy
Min.: 1
Mult.: 1
Reel :
2,000
Details
Serial 4-Wire
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
16 B
SSOP-10
Backup Switching
2 V
5.5 V
- 40 C
+ 85 C
RV5C348
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Serial RTC A 595-BQ3 2000DR A 595-BQ3200 A 595-BQ32000DR
BQ32000D
Texas Instruments
1:
¥398.6
700 In Stock
Mouser Part #
595-BQ32000D
Texas Instruments
Real Time Clock Serial RTC A 595-BQ3 2000DR A 595-BQ3200 A 595-BQ32000DR
700 In Stock
Alternative Packaging
1
¥398.6
10
¥323.9
25
¥262.4
75
¥245.8
300
View
300
¥237.5
525
¥234.2
2,550
¥232.5
5,025
¥229.2
Buy
Min.: 1
Mult.: 1
Details
Serial
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
SOIC-8
Backup Switching
3 V
3.6 V
- 40 C
+ 85 C
BQ32000
SMD/SMT
Tube
Real Time Clock 2-Wire Real Time Clock IC
R2051L02-E2
Nisshinbo
1:
¥267.4
3,620 In Stock
Mouser Part #
848-R2051L02-E2
Nisshinbo
Real Time Clock 2-Wire Real Time Clock IC
3,620 In Stock
1
¥267.4
10
¥196
25
¥177.7
100
¥156.8
3,000
¥125.4
6,000
View
250
¥147.3
500
¥141.5
1,000
¥131.4
6,000
¥124.2
Buy
Min.: 1
Mult.: 1
Reel :
3,000
Details
Serial 2-Wire, I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
QFN023023-16
Backup Switching
750 mV
5.5 V
- 40 C
+ 85 C
R2051L
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock I2C RTCC 64B SRAM No VBAT
MCP7940M-I/ST
Microchip Technology
1:
¥117.9
1,302 In Stock
Mouser Part #
579-MCP7940M-I/ST
Microchip Technology
Real Time Clock I2C RTCC 64B SRAM No VBAT
1,302 In Stock
Alternative Packaging
1
¥117.9
10
¥114.9
25
¥109.6
100
¥103
Buy
Min.: 1
Mult.: 1
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
64 B
TSSOP-8
No Backup Switching
1.8 V
5.5 V
- 40 C
+ 85 C
SMD/SMT
Tube
Real Time Clock 32.768 kHz OPTION A TEMP COMP SPI
RV-3049-C3-32.768KHZ-OPTION-A-TA-QC
Micro Crystal
1:
¥790.6
899 In Stock
NRND
Mouser Part #
428-202184-MG01
NRND
Micro Crystal
Real Time Clock 32.768 kHz OPTION A TEMP COMP SPI
899 In Stock
1
¥790.6
10
¥596.3
25
¥548.1
100
¥493.3
250
View
250
¥468.4
500
¥465.1
1,000
¥403.6
Buy
Min.: 1
Mult.: 1
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-3049-C3
SMD/SMT
Real Time Clock 3-Wire Real Time Clock IC
R2033T-E2-F
Nisshinbo
1:
¥247.5
1,989 In Stock
Mouser Part #
848-R2033TE2F
Nisshinbo
Real Time Clock 3-Wire Real Time Clock IC
1,989 In Stock
1
¥247.5
10
¥181
25
¥163.9
100
¥145.5
2,000
¥118.4
4,000
View
250
¥136.5
500
¥131.2
1,000
¥118.8
4,000
¥117.3
Buy
Min.: 1
Mult.: 1
Reel :
2,000
Details
Serial 3-Wire
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
TSSOP-10
No Backup Switching
1.7 V
5.5 V
- 40 C
+ 85 C
R2033T
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock 4-Wire Real Time Clock IC
RV5C348A-E2-F
Nisshinbo
1:
¥272.4
1,748 In Stock
Mouser Part #
848-RV5C348AE2F
Nisshinbo
Real Time Clock 4-Wire Real Time Clock IC
1,748 In Stock
1
¥272.4
10
¥199.3
25
¥181
100
¥159.6
2,000
¥133.2
4,000
View
250
¥150
500
¥144.2
1,000
¥134.4
4,000
¥126.9
Buy
Min.: 1
Mult.: 1
Reel :
2,000
Details
Serial 4-Wire, SPI
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
SSOP-10
Backup Switching
2 V
5.5 V
- 40 C
+ 85 C
RV5C348
SMD/SMT
Reel, Cut Tape, MouseReel
Real Time Clock Trickle-Charge Timekeeping Chip
DS1302S+
Analog Devices / Maxim Integrated
1:
¥926.8
546 In Stock
Mouser Part #
700-DS1302S
Analog Devices / Maxim Integrated
Real Time Clock Trickle-Charge Timekeeping Chip
546 In Stock
Alternative Packaging
1
¥926.8
10
¥705.9
25
¥621.2
88
¥594.6
264
View
264
¥583
528
¥566.4
Buy
Min.: 1
Mult.: 1
Max.: 546
Details
Serial 3-Wire
YY-MM-DD-dd
HH:MM:SS (24 hr)
31 B
SOIC-8
Backup Switching
2 V
5.5 V
- 40 C
+ 70 C
DS1302S
SMD/SMT
Tube
Real Time Clock Serial Alarm Real-Time Clock
+1 image
DS1306N+
Analog Devices / Maxim Integrated
1:
¥1,966.6
235 In Stock
Mouser Part #
700-DS1306N
Analog Devices / Maxim Integrated
Real Time Clock Serial Alarm Real-Time Clock
235 In Stock
1
¥1,966.6
10
¥1,541.4
25
¥1,413.5
100
¥1,317.2
Buy
Min.: 1
Mult.: 1
Max.: 235
Details
Serial 3-Wire, SPI
YY-MM-DD
HH:MM:SS (24 hr)
96 B
DIP-16
Backup Switching
2 V
5.5 V
0 C
+ 70 C
DS1306N
Through Hole
Tube
Real Time Clock I C Serial Real-Time Clock
+1 image
DS1337+
Analog Devices / Maxim Integrated
1:
¥878.7
2,638 In Stock
Mouser Part #
700-DS1337
Analog Devices / Maxim Integrated
Real Time Clock I C Serial Real-Time Clock
2,638 In Stock
1
¥878.7
10
¥669.4
50
¥611.2
100
¥544.8
250
View
250
¥521.6
500
¥488.3
1,000
¥483.4
2,500
¥481.7
Buy
Min.: 1
Mult.: 1
Max.: 2,638
Details
I2C
YY-MM-DD-dd
HH:MM:SS:hh (12 hr, 24 hr)
DIP-8
No Backup Switching
1.8 V
5.5 V
- 40 C
+ 85 C
DS1337
Through Hole
Tube
Real Time Clock Watchdog Clocks with NV RAM Control
DS1558Y+
Analog Devices / Maxim Integrated
1:
¥3,288.8
253 In Stock
Mouser Part #
700-DS1558Y
Analog Devices / Maxim Integrated
Real Time Clock Watchdog Clocks with NV RAM Control
253 In Stock
Alternative Packaging
1
¥3,288.8
10
¥2,606.1
25
¥2,436.7
100
¥2,249
250
¥2,122.8
Buy
Min.: 1
Mult.: 1
Max.: 253
Details
Parallel
YY-MM-DD-dd
HH:MM:SS (24 hr)
TQFP-48
Backup Switching
4.5 V
5.5 V
- 40 C
+ 85 C
DS1558Y
SMD/SMT
Tray
Real Time Clock Ultra-Low power 12C Real Time clock w/ p
+1 image
MAX31331TETB+
Analog Devices / Maxim Integrated
1:
¥559.8
2,789 In Stock
Mouser Part #
700-MAX31331TETB+
Analog Devices / Maxim Integrated
Real Time Clock Ultra-Low power 12C Real Time clock w/ p
2,789 In Stock
Alternative Packaging
1
¥559.8
10
¥420.2
25
¥383.7
100
¥343.8
250
View
250
¥325.6
500
¥320.6
1,000
¥312.3
2,496
¥294
Buy
Min.: 1
Mult.: 1
Max.: 2,789
Details
Tray
Real Time Clock Serial Alarm Real-Time Clock
+1 image
DS1305N+
Analog Devices / Maxim Integrated
1:
¥2,059.6
1,067 In Stock
Mouser Part #
700-DS1305N
Analog Devices / Maxim Integrated
Real Time Clock Serial Alarm Real-Time Clock
1,067 In Stock
1
¥2,059.6
10
¥1,614.5
25
¥1,481.6
100
¥1,360.4
250
View
250
¥1,328.8
500
¥1,265.7
1,000
¥1,230.8
Buy
Min.: 1
Mult.: 1
Max.: 1,067
Details
Serial 3-Wire, SPI
YY-MM-DD
HH:MM:SS (24 hr)
96 B
DIP-16
Backup Switching
2 V
5.5 V
- 40 C
+ 85 C
DS1305N
Through Hole
Tube