Real Time Clocks

Results: 5
Manufacturer
Analog Devices Inc./Maxim IntegratedMicrochip Technology
Packaging
Cut Tape (CT)Digi-Reel®Tape & Reel (TR)Tube
Features
Alarm, Leap Year, Square Wave Output, SRAMLeap Year, NVSRAM, Trickle-Charger
Memory Size
31B64B
Interface
3-Wire SerialI2C, 2-Wire Serial
Voltage - Supply
1.8V ~ 5.5V2V ~ 5.5V
Voltage - Supply, Battery
1.3V ~ 5.5V2V ~ 5.5V-
Current - Timekeeping (Max)
0.3µA ~ 1µA @ 2V ~ 5V1µA @ 5.5V1.2µA @ 3.3V
Operating Temperature
-40°C ~ 85°C0°C ~ 70°C
Mounting Type
Surface MountThrough Hole
Package / Case
8-DIP (0.300", 7.62mm)8-SOIC (0.154", 3.90mm Width)
Supplier Device Package
8-PDIP8-SOIC
Stocking Options
Environmental Options
Media
Marketplace Product
5Results

Showing
of 5
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Mfr Part #
Quantity Available
Price
Series
Package
Product Status
DigiKey Programmable
Type
Features
Memory Size
Time Format
Date Format
Interface
Voltage - Supply
Voltage - Supply, Battery
Current - Timekeeping (Max)
Operating Temperature
Mounting Type
Grade
Qualification
Package / Case
Supplier Device Package
8-SOIC
MCP7940MT-I/SN
IC RTC CLK/CALENDAR I2C 8SOIC
Microchip Technology
4,694
In Stock
1 : ¥5.70000
Cut Tape (CT)
3,300 : ¥5.01572
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
Clock/Calendar
Alarm, Leap Year, Square Wave Output, SRAM
64B
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
I2C, 2-Wire Serial
1.8V ~ 5.5V
-
1µA @ 5.5V
-40°C ~ 85°C
Surface Mount
-
-
8-SOIC (0.154", 3.90mm Width)
8-SOIC
3,975
In Stock
8,100
Factory
1 : ¥44.63000
Tube
-
Tube
Active
Not Verified
Clock/Calendar
Leap Year, NVSRAM, Trickle-Charger
31B
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
3-Wire Serial
2V ~ 5.5V
2V ~ 5.5V
0.3µA ~ 1µA @ 2V ~ 5V
0°C ~ 70°C
Through Hole
-
-
8-DIP (0.300", 7.62mm)
8-PDIP
8-SOIC
MCP7940M-I/SN
IC RTC CLK/CALENDAR I2C 8SOIC
Microchip Technology
1,337
In Stock
1 : ¥5.50000
Tube
-
Tube
Active
Not Verified
Clock/Calendar
Alarm, Leap Year, Square Wave Output, SRAM
64B
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
I2C, 2-Wire Serial
1.8V ~ 5.5V
-
1µA @ 5.5V
-40°C ~ 85°C
Surface Mount
-
-
8-SOIC (0.154", 3.90mm Width)
8-SOIC
8-PDIP
MCP7940N-I/P
IC RTC CLOCK/CALENDAR I2C 8DIP
Microchip Technology
2,000
In Stock
1 : ¥7.82000
Tube
-
Tube
Active
Not Verified
Clock/Calendar
Alarm, Leap Year, Square Wave Output, SRAM
64B
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
I2C, 2-Wire Serial
1.8V ~ 5.5V
1.3V ~ 5.5V
1.2µA @ 3.3V
-40°C ~ 85°C
Through Hole
Automotive
AEC-Q100
8-DIP (0.300", 7.62mm)
8-PDIP
8-PDIP
MCP7940M-I/P
IC RTC CLOCK/CALENDAR I2C 8DIP
Microchip Technology
326
In Stock
1 : ¥6.29000
Tube
-
Tube
Active
Not Verified
Clock/Calendar
Alarm, Leap Year, Square Wave Output, SRAM
64B
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
I2C, 2-Wire Serial
1.8V ~ 5.5V
-
1µA @ 5.5V
-40°C ~ 85°C
Through Hole
-
-
8-DIP (0.300", 7.62mm)
8-PDIP
Showing
of 5

Real Time Clocks


Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral.  They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.