Real Time Clocks

Photo Mfr. Part # Availability 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
X1227S8I-2.7T1

X1227S8I-2.7T1

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

0
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) 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 -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8I-2.7T2

X1227S8I-2.7T2

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

0
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) 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 -40°C ~ 85°C Surface Mount - - 8-SOIC
X1227S8IZ-2.7AT1

X1227S8IZ-2.7AT1

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

0
RFQ

-

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) 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 -40°C ~ 85°C Surface Mount - - 8-SOIC
X1228S14-2.7T1

X1228S14-2.7T1

IC RTC CLK/CALENDAR I2C 14SOIC

Renesas Electronics Corporation

0
RFQ
Datasheet - 14-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) 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
ISL12029IB27Z-T

ISL12029IB27Z-T

IC RTC CLK/CALENDAR I2C 14SOIC

Renesas Electronics Corporation

0
RFQ
Datasheet - 14-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) 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 ~ 5.5V -40°C ~ 85°C Surface Mount - - 14-SOIC
ISL12028IV27Z-T

ISL12028IV27Z-T

IC RTC CLK/CALENDAR I2C 14TSSOP

Renesas Electronics Corporation

0
RFQ
Datasheet - 14-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) 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 ~ 5.5V -40°C ~ 85°C Surface Mount - - 14-TSSOP
ISL12027IB27Z-T

ISL12027IB27Z-T

IC RTC CLK/CALENDAR I2C 8SOIC

Renesas Electronics Corporation

0
RFQ
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) 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 ~ 5.5V -40°C ~ 85°C Surface Mount - - 8-SOIC
ISL1221IUZ

ISL1221IUZ

IC RTC EVENT REC I2C 10MSOP

Renesas Electronics Corporation

3
RFQ
Datasheet - 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Obsolete Not Verified Time Event Recorder Alarm, Leap Year, SRAM 2B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 4µA ~ 6µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 10-MSOP
ISL12022MIBZ-T7A

ISL12022MIBZ-T7A

IC RTC CLK/CALENDAR I2C 20SOIC

Renesas Electronics Corporation

0
RFQ

-

- 20-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, SRAM 128B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 14µA ~ 15µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 20-SOIC
M41ST85WMH6TR

M41ST85WMH6TR

IC RTC CLK/CALENDAR I2C 28SOH

STMicroelectronics

0
RFQ
Datasheet - 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 44B HH:MM:SS:hh (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 3.6V 2.5V ~ 3.5V 0.5mA @ 2.7V ~ 3.6V -40°C ~ 85°C Surface Mount - - 28-SOH
M48T86PC1

M48T86PC1

IC RTC CLK/CALENDAR PAR 24-DIP

STMicroelectronics

0
RFQ
Datasheet - 24-DIP Module (0.600", 15.24mm) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output 114B HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 4.5V ~ 5.5V - 15mA @ 4.5V ~ 5.5V 0°C ~ 70°C Through Hole - - 24-PCDIP, CAPHAT®
M41T56MH6F

M41T56MH6F

IC RTC CLK/CALENDAR I2C 28SOH

STMicroelectronics

0
RFQ
Datasheet - 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Leap Year, NVSRAM 56B HH:MM:SS (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 2.5V ~ 3.5V 100µA (Typ) @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 28-SOH
BQ4802LYPWG4

BQ4802LYPWG4

IC RTC CLK/CALENDAR PAR 28TSSOP

Texas Instruments

0
RFQ
Datasheet - 28-TSSOP (0.173", 4.40mm Width) Tube Discontinued at Digi-Key Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer - HH:MM:SS (12/24 hr) YY-MM-DD-dd Parallel 2.7V ~ 3.6V 2.4V ~ 4V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 0°C ~ 70°C Surface Mount - - 28-TSSOP
ISL12022MIBZR5421

ISL12022MIBZR5421

IC RTC CLK/CALENDAR I2C 20SOIC

Renesas Electronics Corporation

0
RFQ
Datasheet - 20-SOIC (0.295", 7.50mm Width) Tube Active Not Verified Clock/Calendar Alarm, Daylight Savings, Leap Year, SRAM 128B HH:MM:SS (12/24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 5.5V 1.8V ~ 5.5V 14µA ~ 15µA @ 3V ~ 5V -40°C ~ 85°C Surface Mount - - 20-SOIC
M41ST87YMX6TR

M41ST87YMX6TR

IC RTC CLOCK/CALENDAR I2C 28SO

STMicroelectronics

0
RFQ
Datasheet - 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 128B HH:MM:SS:hh (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 2.5V ~ 5.5V 1mA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 28-SO
M41ST87YMX6

M41ST87YMX6

IC RTC CLOCK/CALENDAR I2C 28SO

STMicroelectronics

0
RFQ
Datasheet - 28-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 128B HH:MM:SS:hh (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 2.5V ~ 5.5V 1mA @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 28-SO
M41ST87WMX6

M41ST87WMX6

IC RTC CLOCK/CALENDAR I2C 28SO

STMicroelectronics

0
RFQ
Datasheet - 28-SOIC (0.295", 7.50mm Width) Tube Obsolete Not Verified Clock/Calendar Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer 128B HH:MM:SS:hh (24 hr) YY-MM-DD-dd I2C, 2-Wire Serial 2.7V ~ 3.6V 2.5V ~ 3.6V 0.5mA @ 2.7V ~ 3.6V -40°C ~ 85°C Surface Mount - - 28-SO
BQ4802YDWRG4

BQ4802YDWRG4

IC RTC CLK/CALENDAR PAR 28SOIC

Texas Instruments

0
RFQ
Datasheet - 28-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Discontinued at Digi-Key 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 2.4V ~ 4V 1.5mA (Typ) @ 4.5 V ~ 5.5 V 0°C ~ 70°C Surface Mount - - 28-SOIC
M41T56C64MY6F

M41T56C64MY6F

IC RTC CLK/CALENDAR I2C 18SOX

STMicroelectronics

0
RFQ
Datasheet - 18-SOX, 18-SOIC with Crystal (7.5mm Width) Tape & Reel (TR) Obsolete Not Verified Clock/Calendar EEPROM, Leap Year, NVSRAM 56B, 8KB HH:MM:SS YY-MM-DD-dd I2C, 2-Wire Serial 4.5V ~ 5.5V 2.5V ~ 3.5V 100µA (Typ) @ 4.5V ~ 5.5V -40°C ~ 85°C Surface Mount - - 18-SOX
BQ4802LYDSH

BQ4802LYDSH

IC RTC CLK/CALENDAR PAR 28SOP

Texas Instruments

0
RFQ
Datasheet - 28-SOIC (0.345", 8.77mm Width) with SNAPHAT Sockets 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 2.7V ~ 3.6V 2.4V ~ 4V 1.5mA (Typ) @ 2.7 V ~ 3.6 V 0°C ~ 70°C Surface Mount - - 28-SOP
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