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Real Time Clocks

Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Programmable Type Features Memory Size Time Format Date Format Interface Voltage - Supply Voltage - Supply, Battery Current - Timekeeping (Max) Operating Temperature Mounting Type Grade Qualification Supplier Device Package
RTC-63421B

RTC-63421B

IC RTC CLK/CALENDAR PAR 18DIP

EPSON

3,421 0.00
RFQ

-

- 18-DIP (0.300", 7.62mm) Tube Obsolete Not Verified Clock/Calendar Alarm - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - - -40°C ~ 85°C Through Hole - - 18-DIP
RTC-4553A2

RTC-4553A2

IC RTC CLK/CALENDAR SER 14SOP

EPSON

1,422 0.00
RFQ
RTC-4553A2

Datasheet

- 14-SOIC (0.197", 5.00mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Leap Year, SRAM 120b HH:MM:SS (12/24 hr) YY-MM-DD-dd 4-Wire Serial 2.7V ~ 5.5V - 3µA @ 5V -30°C ~ 70°C Surface Mount - - 14-SOP
NJU6355EM

NJU6355EM

IC RTC CLK/CALENDAR SER 8EMP

Nisshinbo Micro Devices Inc.

3,846 0.00
RFQ
NJU6355EM

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Leap Year - HH:MM:SS (24 hr) YY-MM-DD-dd 4-Wire Serial 4.5V ~ 5.5V - 4µA ~ 15µA @ 2V ~ 5V -30°C ~ 80°C Surface Mount - - 8-EMP
RTC-4543SB:A

RTC-4543SB:A

IC RTC CLK/CALENDAR SER 18SOP

EPSON

1,966 0.00
RFQ
RTC-4543SB:A

Datasheet

- 18-SOIC (0.213", 5.40mm Width) Bulk Obsolete Not Verified Clock/Calendar Leap Year - HH:MM:SS (24 hr) YY-MM-DD-dd 3-Wire Serial 2.5V ~ 5.5V - 1µA ~ 3µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount - - 18-SOP
RTC-72423A:2

RTC-72423A:2

IC RTC CLK/CALENDAR PAR 24SOP

EPSON

1,292 0.00
RFQ
RTC-72423A:2

Datasheet

- 24-SOIC (0.311", 7.90mm Width) Tube Obsolete Not Verified Clock/Calendar Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 5µA ~ 10µA @ 2V ~ 5V -40°C ~ 85°C Surface Mount - - 24-SOP
BQ3287EAMT

BQ3287EAMT

IC RTC CLOCK/CALENDAR PAR 24DIP

Texas Instruments

3,562 0.00
RFQ
BQ3287EAMT

Datasheet

- 24-DIP Module (0.61", 15.49mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - - 0°C ~ 70°C Through Hole - - 24-DIP Module
BQ3287EMT

BQ3287EMT

IC RTC CLOCK/CALENDAR PAR 24DIP

Texas Instruments

4,935 0.00
RFQ
BQ3287EMT

Datasheet

- 24-DIP Module (0.61", 15.49mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output 242B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - - 0°C ~ 70°C Through Hole - - 24-DIP Module
BQ4822YMA-70

BQ4822YMA-70

IC RTC CLK/CALENDAR PAR 28-DIP

Texas Instruments

4,991 0.00
RFQ
BQ4822YMA-70

Datasheet

- 28-DIP Module (0.61", 15.49mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS:hh (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 6mA @ 2.2 V ~ 5.8 V 0°C ~ 70°C Through Hole - - 28-DIP Module (18.42x37.72)
BQ4842YMA-85

BQ4842YMA-85

IC RTC CLK/CALENDAR PAR 32DIP

Texas Instruments

1,151 0.00
RFQ
BQ4842YMA-85

Datasheet

- 32-DIP Module (0.610", 15.49mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Supervisor, Watchdog Timer - HH:MM:SS:hh (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 4mA @ 4.5 V ~ 5.5 V 0°C ~ 70°C Through Hole - - 32-DIP Module (18.42x42.8)
BQ4845S-A4N

BQ4845S-A4N

IC RTC CLK/CALENDAR PAR 28SOIC

Texas Instruments

1,781 4.01
RFQ
BQ4845S-A4N

Datasheet

- 28-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.75V ~ 5.5V 2.3V ~ 4V 1.5mA (Typ) @ 4.5 V ~ 5.5 V -40°C ~ 85°C Surface Mount - - 28-SOIC
BQ4847MT

BQ4847MT

IC RTC CLK/CALENDAR PAR 28-DIP

Texas Instruments

4,453 0.00
RFQ
BQ4847MT

Datasheet

- 28-DIP Module (0.61", 15.49mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.75V ~ 5.25V 2.3V ~ 4V - 0°C ~ 70°C Through Hole - - 28-DIP Module
BQ4847YMT

BQ4847YMT

IC RTC CLK/CALENDAR PAR 28-DIP

Texas Instruments

3,920 0.00
RFQ
BQ4847YMT

Datasheet

- 28-DIP Module (0.61", 15.49mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V 2.3V ~ 4V - 0°C ~ 70°C Through Hole - - 28-DIP Module
BQ4850YMA-85

BQ4850YMA-85

IC RTC CLK/CALENDAR PAR 32DIP

Texas Instruments

1,244 1.00
RFQ
BQ4850YMA-85

Datasheet

- 32-DIP Module (0.610", 15.49mm) Tube Obsolete Not Verified Clock/Calendar Alarm - HH:MM:SS (24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 1mA @ 4.5V ~ 5.5V 0°C ~ 70°C Through Hole - - 32-DIP Module (18.42x42.8)
X1226S8

X1226S8

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

1,460 0.00
RFQ
X1226S8

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227S8

X1227S8

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

2,570 0.00
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227S8-2.7

X1227S8-2.7

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

3,470 1.00
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227S8-2.7A

X1227S8-2.7A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

4,642 0.00
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1227S8-4.5A

X1227S8-4.5A

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

3,800 0.00
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 8-SOIC
X1228S14

X1228S14

IC RTC CLK/CALENDAR I2C 14SOIC

Renesas Electronics Corporation

4,072 0.00
RFQ
X1228S14

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 14-SOIC
X1228S14-2.7

X1228S14-2.7

IC RTC CLK/CALENDAR I2C 14SOIC

Renesas Electronics Corporation

3,964 0.00
RFQ
X1228S14-2.7

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 10µA ~ 20µA @ 2.7V ~ 5V 0°C ~ 70°C Surface Mount - - 14-SOIC
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