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Manufacturers for Clock/Timing - Real Time Clocks

Abracon LLC.
Ambiq Micro, Inc.
ams
AVX Corporation
Diodes Incorporated
Epson
Integrated Device Technology, Inc.
Intersil (Renesas Electronics America)
Maxim Integrated
Microchip Technology
NJR Corporation/NJRC
NXP Semiconductors
ROHM Semiconductor
ABLIC U.S.A. Inc.
STMicroelectronics
Texas Instruments
Part Number Manufacturer / Brand Brife Description Part StatusTypeFeaturesMemory SizeTime FormatDate FormatInterfaceVoltage - SupplyVoltage - Supply, BatteryCurrent - Timekeeping (Max)Operating TemperatureMounting TypePackage / CaseSupplier Device Package
DS1337
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-DIP ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CThrough Hole8-DIP (0.300", 7.62mm)8-PDIP
DS1337+
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-DIP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CThrough Hole8-DIP (0.300", 7.62mm)8-PDIP
DS1337C#
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 16-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
DS1337C#T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 16-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount16-SOIC (0.295", 7.50mm Width)16-SOIC
DS1337S
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1337S+
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1337S+T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
DS1337U
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1337U+
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1337U+T&R
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.6µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1341U+
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.5µA ~ 0.6µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
DS1342U+
 Maxim Integrated IC RTC CLOCK/CALENDAR I2C 8-USOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.6µA ~ 0.7µA @ 3V ~ 5V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-uMAX
MCP79400-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA (Typ) @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP7940M-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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1µA @ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP7940MT-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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1µA @ 5.5V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP7940N-E/MS
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-MSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 125°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-MSOP
MCP7940N-E/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 125°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP7940N-I/MS
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-MSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-MSOP
MCP7940N-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP7940NT-I/MNY
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-TDFN ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-WFDFN Exposed Pad8-TDFN (2x3)
MCP7940NT-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM64BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP79410-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64B, 1KbHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP79410-I/ST
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-TSSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64B, 1KbHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-TSSOP (0.173", 4.40mm Width)8-TSSOP
MCP79410T-I/MS
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-MSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64B, 1KbHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-MSOP
MCP79410T-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64B, 1KbHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP79412-I/SN
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64B, 1KbHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
MCP79412-I/ST
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-TSSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64B, 1KbHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-TSSOP (0.173", 4.40mm Width)8-TSSOP
MCP79412T-I/MNY
 Microchip Technology IC RTC CLOCK/CALENDAR I2C 8-TDFN ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Unique ID64B, 1KbHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V1.3 V ~ 5.5 V1.2µA @ 3.3V-40°C ~ 85°CSurface Mount8-WFDFN Exposed Pad8-TDFN (2x3)
PT7C4337AWE
 Diodes Incorporated IC RTC CLOCK/CALENDAR I2C ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
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0.8µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
PT7C4337UEX
 Diodes Incorporated IC RTC CLOCK/CALENDAR I2C MSOP ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.8µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-TSSOP, 8-MSOP (0.118", 3.00mm Width)8-MSOP
PT7C4337WE
 Diodes Incorporated IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.8µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
PT7C4337WEX
 Diodes Incorporated IC RTC CLOCK/CALENDAR I2C 8-SOIC ActiveClock/CalendarAlarm, Leap Year, Square Wave Output
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HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8 V ~ 5.5 V
-
0.8µA @ 1.3V ~ 1.8V-40°C ~ 85°CSurface Mount8-SOIC (0.154", 3.90mm Width)8-SOIC
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