Real Time Clocks | Clocks/Timing

AB1803-T3
Abracon LLC

IC RTC CLK/CALENDAR I2C 16-QFN

Package: 16-VFQFN Exposed Pad

Stock3,200
ISL12028IV30AZ-T
Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

Package: 14-TSSOP (0.173", 4.40mm Width)

Stock7,824
M41T56C64MY6E
STMicroelectronics

IC RTC CLK/CALENDAR I2C 18-SOIC

Package: 18-SOX, 18-SOIC with Crystal (7.5mm Width)

Stock5,664
X1228S14I
Intersil

IC RTC CLK/CALENDAR I2C 14-SOIC

Package: 14-SOIC (0.154", 3.90mm Width)

Stock4,784
X1226V8T2
Intersil

IC RTC CLK/CALENDAR I2C 8-TSSOP

Package: 8-TSSOP (0.173", 4.40mm Width)

Stock3,696
DS1685Q-3
Maxim Integrated

IC RTC 3V 64-BIT Y2KC 28-PLCC

Package: 28-LCC (J-Lead)

Stock10,860
DS1315E-33
Maxim Integrated

IC RTC PHANTOM PAR 20-TSSOP

Package: 20-TSSOP (0.173", 4.40mm Width)

Stock4,624
DS1742W-150
Maxim Integrated

IC RTC RAM Y2K 3.3V 150NS 24EDIP

Package: 24-DIP Module (0.600", 15.24mm)

Stock7,856
M48T08Y-10MH1F
STMicroelectronics

IC RTC CLK/CALENDAR PAR 28SOH

Package: 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets

Stock5,696
PT7C4337ACSEX
Diodes Incorporated

RTC MODULE INTEGRATED 32.768K CR

Package: -

Stock4,592
PT7C4307WE
Diodes Incorporated

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock4,672
S-35391A-I8T1U
SII Semiconductor Corporation

IC RTC CLK/CALENDAR I2C SNT-8A

Package: 8-SMD, Flat Lead

Stock4,176
DS1340U-18+
Maxim Integrated

IC RTC CLK/CALENDAR I2C 8-USOP

Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Stock6,688
DS1501WZ+
Maxim Integrated

IC RTC CLK/CALENDAR PAR 28-SOIC

Package: 28-SOIC (0.295", 7.50mm Width)

Stock5,424
RX-8035LC:B3 PURE SN
EPSON

IC RTC EVENT REC I2C 12-VSOJ

Package: 12-TFSOJ (0.094", 2.40mm Width)

Stock4,032
DS1746W-120IND+
Maxim Integrated

IC RTC CLK/CALENDAR PAR 32-EDIP

Package: 32-DIP Module (0.600", 15.24mm)

Stock15,492
DS3232MZ/V+
Maxim Integrated

IC RTC CLK/CALENDAR I2C 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock23,484
DS1390U-33+
Maxim Integrated

IC RTC CLK/CALENDAR SPI 10-USOP

Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Stock175,452
M41T94MH6F
STMicroelectronics

IC RTC CLK/CALENDAR SPI 28-SOIC

Package: 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets

Stock23,328
DS1302Z+T&R
Maxim Integrated

IC RTC CLK/CALENDAR SER 8-SOIC

Package: 8-SOIC (0.154", 3.90mm Width)

Stock1,272,276

Part Number	Manufacturer	Description	Package	Stock	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
AB1803-T3	Abracon LLC	IC RTC CLK/CALENDAR I2C 16-QFN Type: Clock/Calendar Features: Alarm, Leap Year, SRAM, Trickle-Charger Memory Size: 64B Time Format: HH:MM:SS:hh Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.7 V ~ 3.6 V Voltage - Supply, Battery: 1.5 V ~ 3.6 V Current - Timekeeping (Max): 0.17µA ~ 0.22µA @ 1.8V ~ 3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-VFQFN Exposed Pad Supplier Device Package: 16-QFN (3x3)	Package: 16-VFQFN Exposed Pad	Stock3,200	Alarm, Leap Year, SRAM, Trickle-Charger	64B	HH:MM:SS:hh	YY-MM-DD-dd	I2C, 2-Wire Serial	1.7 V ~ 3.6 V	1.5 V ~ 3.6 V	0.17µA ~ 0.22µA @ 1.8V ~ 3V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-QFN (3x3)
ISL12028IV30AZ-T	Intersil	IC RTC CLK/CALENDAR I2C 14-TSSOP Type: Clock/Calendar Features: Alarm, Leap Year, Supervisor, Watchdog Timer Memory Size: - Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 1.8 V ~ 5.5 V Current - Timekeeping (Max): 10µA ~ 20µA @ 2.7V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 14-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 14-TSSOP	Package: 14-TSSOP (0.173", 4.40mm Width)	Stock7,824	Alarm, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7 V ~ 5.5 V	1.8 V ~ 5.5 V	10µA ~ 20µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP
M41T56C64MY6E	STMicroelectronics	IC RTC CLK/CALENDAR I2C 18-SOIC Type: Clock/Calendar Features: EEPROM, Leap Year, NVSRAM Memory Size: 56B, 8KB Time Format: HH:MM:SS Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 4.5 V ~ 5.5 V Voltage - Supply, Battery: 2.5 V ~ 3.5 V Current - Timekeeping (Max): 100µA (Typ) @ 4.5V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 18-SOX, 18-SOIC with Crystal (7.5mm Width) Supplier Device Package: 18-SOX	Package: 18-SOX, 18-SOIC with Crystal (7.5mm Width)	Stock5,664	EEPROM, Leap Year, NVSRAM	56B, 8KB	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5 V ~ 5.5 V	2.5 V ~ 3.5 V	100µA (Typ) @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX
X1228S14I	Intersil	IC RTC CLK/CALENDAR I2C 14-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Supervisor, Watchdog Timer Memory Size: - Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 1.8 V ~ 5.5 V Current - Timekeeping (Max): 10µA ~ 20µA @ 2.7V ~ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 14-SOIC (0.154", 3.90mm Width) Supplier Device Package: 14-SOIC	Package: 14-SOIC (0.154", 3.90mm Width)	Stock4,784	Alarm, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7 V ~ 5.5 V	1.8 V ~ 5.5 V	10µA ~ 20µA @ 2.7V ~ 5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.154", 3.90mm Width)	14-SOIC
X1226V8T2	Intersil	IC RTC CLK/CALENDAR I2C 8-TSSOP Type: Clock/Calendar Features: Alarm, Leap Year Memory Size: - Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 1.8 V ~ 5.5 V Current - Timekeeping (Max): 10µA ~ 20µA @ 2.7V ~ 5V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 8-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 8-TSSOP	Package: 8-TSSOP (0.173", 4.40mm Width)	Stock3,696	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7 V ~ 5.5 V	1.8 V ~ 5.5 V	10µA ~ 20µA @ 2.7V ~ 5V	0°C ~ 70°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP
DS1685Q-3	Maxim Integrated	IC RTC 3V 64-BIT Y2KC 28-PLCC Type: Clock/Calendar Features: Alarm, NVSRAM, Square Wave Output, Y2K Memory Size: 242B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 2.7 V ~ 3.7 V Voltage - Supply, Battery: 2.5 V ~ 3.7 V Current - Timekeeping (Max): - Operating Temperature: - Mounting Type: Surface Mount Package / Case: 28-LCC (J-Lead) Supplier Device Package: 28-PLCC (11.51x11.51)	Package: 28-LCC (J-Lead)	Stock10,860	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7 V ~ 3.7 V	2.5 V ~ 3.7 V	-	-	Surface Mount	28-LCC (J-Lead)	28-PLCC (11.51x11.51)
DS1315E-33	Maxim Integrated	IC RTC PHANTOM PAR 20-TSSOP Type: Phantom Time Chip Features: Leap Year Memory Size: - Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 3 V ~ 3.6 V Voltage - Supply, Battery: 2.5 V ~ 3.7 V Current - Timekeeping (Max): 1.1mA @ 3.3V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 20-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 20-TSSOP	Package: 20-TSSOP (0.173", 4.40mm Width)	Stock4,624	Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	3 V ~ 3.6 V	2.5 V ~ 3.7 V	1.1mA @ 3.3V	0°C ~ 70°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
DS1742W-150	Maxim Integrated	IC RTC RAM Y2K 3.3V 150NS 24EDIP Type: Clock/Calendar Features: Leap Year, NVSRAM, Y2K Memory Size: 2KB Time Format: HH:MM:SS (24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 2.97 V ~ 3.63 V Voltage - Supply, Battery: - Current - Timekeeping (Max): - Operating Temperature: - Mounting Type: Through Hole Package / Case: 24-DIP Module (0.600", 15.24mm) Supplier Device Package: 24-EDIP	Package: 24-DIP Module (0.600", 15.24mm)	Stock7,856	Leap Year, NVSRAM, Y2K	2KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97 V ~ 3.63 V	-	-	-	Through Hole	24-DIP Module (0.600", 15.24mm)	24-EDIP
M48T08Y-10MH1F	STMicroelectronics	IC RTC CLK/CALENDAR PAR 28SOH Type: Clock/Calendar Features: Leap Year, Watchdog Timer Memory Size: - Time Format: HH:MM:SS (24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 4.5 V ~ 5.5 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 3mA @ 4.5V ~ 5.5V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets Supplier Device Package: 28-SOH	Package: 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Stock5,696	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
PT7C4337ACSEX	Diodes Incorporated	RTC MODULE INTEGRATED 32.768K CR Type: - Features: - Memory Size: - Time Format: - Date Format: - Interface: - Voltage - Supply: - Voltage - Supply, Battery: - Current - Timekeeping (Max): - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	Package: -	Stock4,592	-	-	-	-	-	-	-	-	-	-	-	-
PT7C4307WE	Diodes Incorporated	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, NVSRAM, Square Wave Output Memory Size: 56B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 4.5 V ~ 5.5 V Voltage - Supply, Battery: 2 V ~ 3.5 V Current - Timekeeping (Max): 1.5mA @ 4.5V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock4,672	Alarm, Leap Year, NVSRAM, Square Wave Output	56B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5 V ~ 5.5 V	2 V ~ 3.5 V	1.5mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
S-35391A-I8T1U	SII Semiconductor Corporation	IC RTC CLK/CALENDAR I2C SNT-8A Type: Clock/Calendar Features: Alarm, Leap Year Memory Size: - Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.3 V ~ 5.5 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 14µA ~ 30µA @ 3V ~ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SMD, Flat Lead Supplier Device Package: SNT-8A	Package: 8-SMD, Flat Lead	Stock4,176	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3 V ~ 5.5 V	-	14µA ~ 30µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	8-SMD, Flat Lead	SNT-8A
DS1340U-18+	Maxim Integrated	IC RTC CLK/CALENDAR I2C 8-USOP Type: Clock/Calendar Features: Leap Year, Trickle-Charger Memory Size: - Time Format: HH:MM:SS (24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.71 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 3.7 V Current - Timekeeping (Max): 100µA @ 1.89V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-uMAX	Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Stock6,688	Leap Year, Trickle-Charger	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.71 V ~ 5.5 V	1.3 V ~ 3.7 V	100µA @ 1.89V	-40°C ~ 85°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-uMAX
DS1501WZ+	Maxim Integrated	IC RTC CLK/CALENDAR PAR 28-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K Memory Size: 256B Time Format: HH:MM:SS (24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 3 V ~ 3.6 V Voltage - Supply, Battery: 2.5 V ~ 3.7 V Current - Timekeeping (Max): 4mA @ 3V ~ 3.6V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 28-SOIC (0.295", 7.50mm Width) Supplier Device Package: 28-SOIC	Package: 28-SOIC (0.295", 7.50mm Width)	Stock5,424	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3 V ~ 3.6 V	2.5 V ~ 3.7 V	4mA @ 3V ~ 3.6V	0°C ~ 70°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
RX-8035LC:B3 PURE SN	EPSON	IC RTC EVENT REC I2C 12-VSOJ Type: Time Event Recorder Features: Alarm Memory Size: - Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 2.4 V ~ 5.5 V Voltage - Supply, Battery: 1 V ~ 5.5 V Current - Timekeeping (Max): 2.5µA @ 3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 12-TFSOJ (0.094", 2.40mm Width) Supplier Device Package: 12-VSOJ	Package: 12-TFSOJ (0.094", 2.40mm Width)	Stock4,032	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.4 V ~ 5.5 V	1 V ~ 5.5 V	2.5µA @ 3V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
DS1746W-120IND+	Maxim Integrated	IC RTC CLK/CALENDAR PAR 32-EDIP Type: Clock/Calendar Features: Leap Year, NVSRAM, Y2K Memory Size: 128KB Time Format: HH:MM:SS (24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 2.97 V ~ 3.63 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 2mA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Through Hole Package / Case: 32-DIP Module (0.600", 15.24mm) Supplier Device Package: 32-EDIP	Package: 32-DIP Module (0.600", 15.24mm)	Stock15,492	Leap Year, NVSRAM, Y2K	128KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97 V ~ 3.63 V	-	2mA @ 3.3V	-40°C ~ 85°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-EDIP
DS3232MZ/V+	Maxim Integrated	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 236B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 2.3 V ~ 4.5 V Voltage - Supply, Battery: 2.3 V ~ 4.5 V Current - Timekeeping (Max): 175µA @ 2.3V ~ 4.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock23,484	Alarm, Leap Year, Square Wave Output, SRAM	236B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3 V ~ 4.5 V	2.3 V ~ 4.5 V	175µA @ 2.3V ~ 4.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
DS1390U-33+	Maxim Integrated	IC RTC CLK/CALENDAR SPI 10-USOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, Trickle-Charger Memory Size: - Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 2.97 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 175µA @ 2.97V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Supplier Device Package: 10-µSOP	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock175,452	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	2.97 V ~ 5.5 V	1.3 V ~ 5.5 V	175µA @ 2.97V ~ 5.5V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-µSOP
M41T94MH6F	STMicroelectronics	IC RTC CLK/CALENDAR SPI 28-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer Memory Size: 44B Time Format: HH:MM:SS:hh (24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 2.5 V ~ 3.5 V Current - Timekeeping (Max): 1.4mA @ 2.7V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets Supplier Device Package: 28-SOH	Package: 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Stock23,328	Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer	44B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.7 V ~ 5.5 V	2.5 V ~ 3.5 V	1.4mA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	28-SOH
DS1302Z+T&R	Maxim Integrated	IC RTC CLK/CALENDAR SER 8-SOIC Type: Clock/Calendar Features: Leap Year, NVSRAM, Trickle-Charger Memory Size: 31B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: 3-Wire Serial Voltage - Supply: 2 V ~ 5.5 V Voltage - Supply, Battery: 2 V ~ 5.5 V Current - Timekeeping (Max): 0.3µA ~ 1µA @ 2V ~ 5V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock1,272,276	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2 V ~ 5.5 V	2 V ~ 5.5 V	0.3µA ~ 1µA @ 2V ~ 5V	0°C ~ 70°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
MCP79410-I/ST	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-TSSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID Memory Size: 64B, 1Kb Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 5.5 V Voltage - Supply, Battery: 1.3 V ~ 5.5 V Current - Timekeeping (Max): 1.2µA @ 3.3V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 8-TSSOP	Package: 8-TSSOP (0.173", 4.40mm Width)	Stock51,588	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B, 1Kb	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 5.5 V	1.3 V ~ 5.5 V	1.2µA @ 3.3V	-40°C ~ 85°C	Surface Mount	8-TSSOP (0.173", 4.40mm Width)	8-TSSOP
ISL12027IB30AZ	Renesas Electronics America	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Leap Year, Supervisor, Watchdog Timer Memory Size: - Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I²C, 2-Wire Serial Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 1.8 V ~ 5.5 V Current - Timekeeping (Max): 10µA ~ 20µA @ 2.7V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock2,896	Alarm, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7 V ~ 5.5 V	1.8 V ~ 5.5 V	10µA ~ 20µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
X1288V14I-2.7T1	Renesas Electronics America	IC RTC CLK/CALENDAR I2C 14-TSSOP Type: Clock/Calendar Features: Alarm, Leap Year, Supervisor, Watchdog Timer Memory Size: - Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: I²C, 2-Wire Serial Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 1.8 V ~ 5.5 V Current - Timekeeping (Max): 10µA ~ 20µA @ 2.7V ~ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 14-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 14-TSSOP	Package: 14-TSSOP (0.173", 4.40mm Width)	Stock5,808	Alarm, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7 V ~ 5.5 V	1.8 V ~ 5.5 V	10µA ~ 20µA @ 2.7V ~ 5V	-40°C ~ 85°C	Surface Mount	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP
X1286V14	Renesas Electronics America	IC RTC CLK/CALENDAR I2C 14-TSSOP Type: Clock/Calendar Features: Alarm, Leap Year, Supervisor, Watchdog Timer Memory Size: - Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: I²C, 2-Wire Serial Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 1.8 V ~ 5.5 V Current - Timekeeping (Max): 10µA ~ 20µA @ 2.7V ~ 5V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 14-TSSOP (0.173", 4.40mm Width) Supplier Device Package: 14-TSSOP	Package: 14-TSSOP (0.173", 4.40mm Width)	Stock4,688	Alarm, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I²C, 2-Wire Serial	2.7 V ~ 5.5 V	1.8 V ~ 5.5 V	10µA ~ 20µA @ 2.7V ~ 5V	0°C ~ 70°C	Surface Mount	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP
RX-8803LC:UC PURE SN	EPSON	IC TRC CLK/CALENDAR Type: Clock/Calendar Features: Alarm Memory Size: - Time Format: HH:MM:SS Date Format: YY-MM-DD Interface: I²C Voltage - Supply: 1.6 V ~ 5.5 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 2.1µA ~ 3.4µA @ 3V ~ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 12-TFSOJ (0.094", 2.40mm Width) Supplier Device Package: 12-VSOJ	Package: 12-TFSOJ (0.094", 2.40mm Width)	Stock2,512	Alarm	-	HH:MM:SS	YY-MM-DD	I²C	1.6 V ~ 5.5 V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
RX-8581JE:B I2C-BUS	EPSON	IC TRC CLK/CALENDAR Type: - Features: - Memory Size: - Time Format: - Date Format: - Interface: - Voltage - Supply: - Voltage - Supply, Battery: - Current - Timekeeping (Max): - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	Package: -	Stock5,760	-	-	-	-	-	-	-	-	-	-	-	-
R2023T-E2-F	Nisshinbo Micro Devices Inc.	2-WIRE SERIAL INTERFACE REAL TIM Type: - Features: - Memory Size: - Time Format: - Date Format: - Interface: - Voltage - Supply: - Voltage - Supply, Battery: - Current - Timekeeping (Max): - Operating Temperature: - Mounting Type: - Package / Case: - Supplier Device Package: -	Package: -	Request a Quote	-	-	-	-	-	-	-	-	-	-	-	-
RV-3129-C3-32-768KHZ-OPTION-B-TB-QC	Micro Crystal AG	IC RTC CLK/CALENDAR I2C 10SON Type: Clock/Calendar Features: Alarm, EEPROM, RAM, Trickle Charger Memory Size: 2B, 8B Time Format: HH:MM:SS Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.3V ~ 5.5V, 2.1V ~ 5.5V Voltage - Supply, Battery: - Current - Timekeeping (Max): 1µA @ 3V Operating Temperature: -40°C ~ 125°C Mounting Type: Surface Mount Package / Case: 10-VCDFN Supplier Device Package: 10-SON (3.7x2.5)	Package: -	Request a Quote	Alarm, EEPROM, RAM, Trickle Charger	2B, 8B	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V, 2.1V ~ 5.5V	-	1µA @ 3V	-40°C ~ 125°C	Surface Mount	10-VCDFN	10-SON (3.7x2.5)

Clock/Timing - Real Time Clocks