Real Time Clocks

Results: 3
Manufacturer
Analog Devices Inc./Maxim IntegratedMicrochip TechnologyNXP USA Inc.
Packaging
Cut Tape (CT)Digi-Reel®Tape & Reel (TR)
Features
Alarm, Leap Year, Square Wave OutputAlarm, Leap Year, Square Wave Output, SRAMAlarm, Leap Year, Watchdog Timer
Memory Size
64B-
Voltage - Supply
1.6V ~ 5.5V1.8V ~ 5.5V2.3V ~ 5.5V
Voltage - Supply, Battery
1.3V ~ 5.5V1.8V ~ 5.5V2.3V ~ 5.5V
Current - Timekeeping (Max)
0.5µA @ 2V ~ 5V1.2µA @ 3.3V130µA ~ 200µA @ 3.63V ~ 5.5V
Supplier Device Package
8-SO8-SOIC
Stocking Options
Environmental Options
Media
Marketplace Product
3Results

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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
MCP7940NT-I/SN
IC RTC CLK/CALENDAR I2C 8SOIC
Microchip Technology
25,230
In Stock
1 : ¥7.23000
Cut Tape (CT)
3,300 : ¥6.46066
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
1.3V ~ 5.5V
1.2µA @ 3.3V
-40°C ~ 85°C
Surface Mount
Automotive
AEC-Q100
8-SOIC (0.154", 3.90mm Width)
8-SOIC
8 SOIC
PCF8523T/1,118
IC RTC CLOCK/CALENDAR I2C 8SO
NXP USA Inc.
5,235
In Stock
1 : ¥13.26000
Cut Tape (CT)
2,500 : ¥6.08520
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
Clock/Calendar
Alarm, Leap Year, Watchdog Timer
-
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
I2C, 2-Wire Serial
1.6V ~ 5.5V
1.8V ~ 5.5V
0.5µA @ 2V ~ 5V
-40°C ~ 85°C
Surface Mount
-
-
8-SOIC (0.154", 3.90mm Width)
8-SO
3,332
In Stock
1 : ¥94.19000
Cut Tape (CT)
2,500 : ¥43.86505
Tape & Reel (TR)
-
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Active
Not Verified
Clock/Calendar
Alarm, Leap Year, Square Wave Output
-
HH:MM:SS (12/24 hr)
YY-MM-DD-dd
I2C, 2-Wire Serial
2.3V ~ 5.5V
2.3V ~ 5.5V
130µA ~ 200µA @ 3.63V ~ 5.5V
-40°C ~ 85°C
Surface Mount
-
-
8-SOIC (0.154", 3.90mm Width)
8-SOIC
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of 3

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.