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All Products > Semiconductors > Integrated Circuits - ICs > Clock & Timer ICs > Real Time Clock
Category   Semiconductors >  Integrated Circuits - ICs >  Clock & Timer ICs >  Real Time Clock

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Compare up to 20 parts.
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NXP Semiconductors PCF2127AT/2Y
771-PCF2127AT/2Y


To purchase full reel, order in multiples of 2000:
PCF2127AT/2Y

New Product
New Product


NXP Semiconductors Real Time Clock Integrated RTC TCXO quartz crystal
Page 434

Data Sheet
9,004
In Stock
Cut Tape
1: $3.69
10: $2.97
100: $2.70
250: $2.44
500: View
2,000: $1.75

MouseReel Available


Min.: 1
Mult.: 1
Reel: 2,000
I2C DW:DM:M:Y HH:MM:SS 512 B 4.2 V 1.8 V + 85 C - 40 C SMD/SMT SOT-163-1 Reel
Maxim Integrated DS3232S#
 Enlarge
Maxim Integrated Real Time Clock Integrated RTC/TCXO/Crystal
Page 405

Data Sheet
4,183
In Stock
Alternative Packaging
1: $8.90
25: $8.27
50: $6.89
100: $6.47
250: View



Min.: 1
Mult.: 1
I2C DW:DM:M:Y HH:MM:SS 236 B 5.5 V 2.3 V + 70 C 0 C SMD/SMT SOIC-20 Tube
Maxim Integrated DS3234SN#
 Enlarge
Maxim Integrated Real Time Clock Integrated RTC/TCXO/Crystal
Page 405

Data Sheet
2,537
In Stock
Alternative Packaging
1: $9.26
25: $8.12
50: $7.43
100: $6.98
250: View



Min.: 1
Mult.: 1
Serial HH:MM:SS 256 B 5.5 V 2 V + 85 C - 40 C SMD/SMT SOIC-20 Bulk
Maxim Integrated DS3231SN#
 Enlarge
Maxim Integrated Real Time Clock Integrated RTC/TCXO/Crystal
Page 405

Data Sheet
3,546
In Stock
Alternative Packaging
1: $9.61
25: $8.43
50: $7.71
100: $7.25
250: View



Min.: 1
Mult.: 1
I2C DW:DM:M:Y HH:MM:SS 5.5 V 2.3 V + 85 C - 40 C SMD/SMT SOIC-16 Bulk
Maxim Integrated DS12C887+
 Enlarge
Maxim Integrated Real Time Clock RTC
Page 405

Data Sheet
5,282
In Stock
1: $9.83
25: $9.48
50: $7.88
100: $7.41
250: View



Min.: 1
Mult.: 1
Multiplexed DW:DM:M:Y, Binary HH:MM:SS, Binary 113 B 5.5 V 4.5 V + 70 C 0 C Through Hole EDIP-24 Tube
STMicroelectronics M48T02-70PC1
 Enlarge
STMicroelectronics Real Time Clock 16K (2Kx8) 70ns
Page 308

Data Sheet
1,716
In Stock
Alternative Packaging
1: $14.60
10: $13.29
25: $12.28
50: $11.49
100: View



Min.: 1
Mult.: 1
Parallel DW:DM:M:Y HH:MM:SS 2 kB 5.5 V 4.75 V + 70 C 0 C Through Hole PCDIP-24 Tube
Microchip Technology MCP7940N-I/SN Microchip Technology Real Time Clock I2C GP RTCC 64B SRAM
Page 432

Data Sheet
16,411
In Stock
Alternative Packaging
1: $0.89
10: $0.74
25: $0.68
100: $0.65



Min.: 1
Mult.: 1
2-Wire, I2C DW:DM:M:Y HH:MM:SS 64 B 5.5 V 1.8 V + 85 C - 40 C SMD/SMT SOIC-8 Tube
STMicroelectronics M41T00M6F
 Enlarge
511-M41T00M6F


To purchase full reel, order in multiples of 2500:
STMicroelectronics Real Time Clock Serial 64 (8X8)
Data Sheet 7,279
In Stock
Cut Tape
1: $2.52
10: $2.04
100: $1.63
500: $1.42
Reel
2,500: $1.10
5,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 2,500
2-Wire, I2C DW:DM:M:Y HH:MM:SS 8 B 5.5 V 2 V + 85 C - 40 C SMD/SMT SOIC-8 Reel
Maxim Integrated DS1307ZN+T&R
 Enlarge
700-DS1307ZNT&R


To purchase full reel, order in multiples of 2500:
Maxim Integrated Real Time Clock 64x8 Serial I2C RTC
Data Sheet 5,104
In Stock
Alternative Packaging
Cut Tape
1: $2.93
25: $2.66
50: $2.50
100: $2.00
Reel
2,500: $1.73
5,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 2,500
I2C DW:DM:M:Y HH:MM:SS 56 B 5.5 V 4.5 V + 85 C - 40 C SMD/SMT SOIC-8 Reel
Maxim Integrated DS1307Z+
 Enlarge
Maxim Integrated Real Time Clock 64x8 Serial I2C RTC
Page 405

Data Sheet
5,801
In Stock
Alternative Packaging
1: $3.26
25: $2.86
50: $2.61
100: $2.45
250: View



Min.: 1
Mult.: 1
I2C YY:MM:DD HH:MM:SS 56 B 5.5 V 4.5 V + 70 C 0 C SMD/SMT SOIC-8 Tube
Maxim Integrated DS1338Z-33+
 Enlarge
Maxim Integrated Real Time Clock I2C Serial RTC w/56 Byte NV RAM
Page 405

Data Sheet
4,400
In Stock
Alternative Packaging
1: $3.37
25: $2.96
50: $2.70
100: $2.54
250: View



Min.: 1
Mult.: 1
I2C DW:DM:M:Y HH:MM:SS 56 B 5.5 V 3 V + 85 C - 40 C SMD/SMT SO-8 Tube
STMicroelectronics M41T94MQ6F
 Enlarge
511-M41T94MQ6F


To purchase full reel, order in multiples of 2500:
STMicroelectronics Real Time Clock Serial 512 (64x8)
Data Sheet 7,699
In Stock
Cut Tape
1: $3.40
10: $2.73
100: $2.43
250: $2.24
Reel
2,500: $1.61
5,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 2,500
Serial HH:MM:SS:hh 64 B 5.5 V 2.7 V + 85 C - 40 C SMD/SMT SO-16 Reel
Maxim Integrated DS1339U-33+
 Enlarge
Maxim Integrated Real Time Clock I2C Serial RTC
Page 405

Data Sheet
4,867
In Stock
Alternative Packaging
1: $3.55
25: $3.11
50: $2.85
100: $2.68
250: View



Min.: 1
Mult.: 1
I2C DW:DM:M:Y HH:MM:SS 5.5 V 2.97 V + 85 C - 40 C SMD/SMT MSOP-8 Tube
STMicroelectronics M41T62LC6F
 Enlarge
511-M41T62LC6F


To purchase full reel, order in multiples of 1000:
STMicroelectronics Real Time Clock Serial real-time clocks with alarm
Page 456

Data Sheet
6,084
In Stock
Cut Tape
1: $3.63
10: $2.92
100: $2.59
250: $2.39
Reel
1,000: $1.81
2,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 1,000
2-Wire, I2C DW:DM:M:Y HH:MM:SS:hh 16 B 4.4 V 1.3 V + 85 C - 40 C SMD/SMT CLCC-8 Reel
Maxim Integrated DS1307ZN+
 Enlarge
Maxim Integrated Real Time Clock 64x8 Serial I2C RTC
Page 405

Data Sheet
4,885
In Stock
Alternative Packaging
1: $3.71
25: $3.25
50: $2.97
100: $2.79
250: View



Min.: 1
Mult.: 1
I2C YY:MM:DD HH:MM:SS 56 B 5.5 V 4.5 V + 85 C - 40 C SMD/SMT SOIC-8 Tube
Maxim Integrated DS1388Z-33+
 Enlarge
Maxim Integrated Real Time Clock I2C RTC/Supervisor w/Trickle Charger
Page 405

Data Sheet
5,019
In Stock
Alternative Packaging
1: $4.66
25: $4.09
50: $3.74
100: $3.51
250: View



Min.: 1
Mult.: 1
I2C YY-MM-DD HH:MM:SS:hh 512 B 3.63 V 2.97 V + 85 C - 40 C SMD/SMT SOIC-8 Tube
Maxim Integrated DS1338C-33#T&R
 Enlarge
700-DS1338C-33#T&R-


To purchase full reel, order in multiples of 1000:
Maxim Integrated Real Time Clock I2C Serial RTC w/56 Byte NV RAM
Data Sheet 2,303
In Stock
Alternative Packaging
Cut Tape
1: $4.98
25: $4.52
50: $4.24
100: $3.39
Reel
1,000: $3.06
2,000: View

MouseReel Available


Min.: 1
Mult.: 1
Reel: 1,000
I2C DW:DM:M:Y HH:MM:SS 56 B 5.5 V 3 V + 85 C - 40 C SMD/SMT SOIC-16 Reel
Maxim Integrated DS1305E+
 Enlarge
Maxim Integrated Real Time Clock Serial Alarm RTC 3-Wire
Page 405

Data Sheet
3,936
In Stock
Alternative Packaging
1: $5.05
25: $4.87
50: $4.05
100: $3.81
250: View



Min.: 1
Mult.: 1
3-Wire, SPI DM:M:DW:Y HH:MM:SS 96 B 5.5 V 2 V + 70 C 0 C SMD/SMT TSSOP-20 Tube
Maxim Integrated DS1685SN-3+
 Enlarge
Maxim Integrated Real Time Clock 3V/5V RTC
Data Sheet 2,857
In Stock
1: $7.25
25: $6.99
50: $5.82
100: $5.47
250: View



Min.: 1
Mult.: 1
Multiplexed DW:DM:M:Y, Binary HH:MM:SS, Binary 242 B 3.7 V 2.7 V + 85 C - 40 C SMD/SMT SOIC-24 Tube
Maxim Integrated DS3234S#
 Enlarge
Maxim Integrated Real Time Clock Integrated RTC/TCXO/Crystal
Page 405

Data Sheet
1,879
In Stock
More Info Available
Alternative Packaging
1: $8.58
25: $7.52
50: $6.89
100: $6.47
250: View



Min.: 1
Mult.: 1
Serial HH:MM:SS 256 B 5.5 V 2 V + 70 C 0 C SMD/SMT SOIC-20 Bulk
Maxim Integrated DS3232SN#
 Enlarge
Maxim Integrated Real Time Clock Integrated RTC/TCXO/Crystal
Page 405

Data Sheet
1,733
In Stock
Alternative Packaging
1: $9.26
25: $8.12
50: $7.43
100: $6.98
250: View



Min.: 1
Mult.: 1
I2C DW:DM:M:Y HH:MM:SS 236 B 5.5 V 2.3 V + 85 C - 40 C SMD/SMT SOIC-20 Bulk
STMicroelectronics M48T18-100PC1
 Enlarge
STMicroelectronics Real Time Clock 64K (8Kx8) 100ns
Page 308

Data Sheet
571
In Stock
1: $12.75
10: $12.52
25: $12.29
50: $11.84
100: View



Min.: 1
Mult.: 1
Parallel DW:DM:M:Y HH:MM:SS 8 kB 5.5 V 4.5 V + 70 C 0 C Through Hole PDIP-28 Tube
Maxim Integrated DS1243Y-120+
 Enlarge
Maxim Integrated Real Time Clock 64k NV SRAM w/Phantom Clock
Data Sheet 511
In Stock
1: $29.09
25: $28.06
50: $23.31
100: $21.93
250: View



Min.: 1
Mult.: 1
Parallel DW:DM:M:Y HH:MM:SS:hh 8 kB 5.5 V 4.5 V + 70 C 0 C Through Hole EDIP-28 Tube
Maxim Integrated Real Time Clock 256kB NV RAM Timekeeper
Data Sheet 559
In Stock
1: $34.36
25: $33.14
50: $27.55
100: $25.90
250: View



Min.: 1
Mult.: 1
Parallel HH:MM:SS 32768 B 3.63 V 2.97 V + 85 C - 40 C Through Hole eDIP Tube
Maxim Integrated Real Time Clock Timekeeping NV RAM
Page 405

Data Sheet
359
In Stock
1: $35.43
25: $31.07
50: $28.39
100: $26.71
250: View



Min.: 1
Mult.: 1
Parallel HH:MM:SS 32768 B 3.63 V 2.97 V + 85 C - 40 C Through Hole eDIP Tube
Compare up to 20 parts.
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