Page 12 - Clock/Timing - Real Time Clocks | Integrated Circuits (ICs)

ISL12029AIV27Z-T
Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

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

Stock6,000
ISL12059IBZ-T
Intersil

IC RTC CLK/CALENDAR I2C 8-SOIC

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

Stock6,176
ISL12030IBZ
Intersil

IC RTC CLK/CALENDAR I2C 8-SOIC

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

Stock4,224
ISL12028IVZ
Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

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

Stock6,368
X1288V14Z
Intersil

IC RTC CLK/CALENDAR I2C 14-TSSOP

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

Stock4,448
M41T00SC64MY6E
STMicroelectronics

IC RTC CLK/CALENDAR I2C 18-SOX

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

Stock4,864
MAX6917EO33+T
Maxim Integrated

IC RTC I2C COMPAT 20-QSOP

Package: 20-SSOP (0.154", 3.90mm Width)

Stock5,488
X1227S8Z-2.7
Intersil

IC RTC CLK/CALENDAR I2C 8-SOIC

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

Stock5,952
ISL12027IBZ
Intersil

IC RTC CLK/CALENDAR I2C 8-SOIC

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

Stock6,784
X1205S8Z
Intersil

IC RTC CLK/CALENDAR I2C 8-SOIC

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

Stock12,780
M48T201Y-70MH1E
STMicroelectronics

IC RTC CLK/CALENDAR PAR 44-SOH

Package: 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT

Stock4,048
DS2415X
Maxim Integrated

IC RTC BINARY CNT SER 6-FLIPCHIP

Package: 6-XBGA, FCBGA

Stock4,368
DS1615S/T&R
Maxim Integrated

IC RTC TEMP REC SER 16-SOIC

Package: 16-SOIC (0.295", 7.50mm Width)

Stock7,936
DP8573AN
Texas Instruments

IC RTC CLK/CALENDAR PAR 24-DIP

Package: 24-DIP (0.300", 7.62mm)

Stock50,148
MCP7940NT-I/MS
Microchip Technology

IC RTC CLK/CALENDAR I2C 8-MSOP

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

Stock4,688
DS1554W-120+
Maxim Integrated

IC RTC CLK/CALENDAR PAR 32-EDIP

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

Stock6,192
DS1500YEN+
Maxim Integrated

IC RTC CLK/CALENDAR PAR 32-TSOP

Package: 32-LFSOP (0.724", 18.40mm Width)

Stock6,752
DS1744-70IND+
Maxim Integrated

IC RTC CLK/CALENDAR PAR 28-EDIP

Package: 28-DIP Module (0.600", 15.24mm)

Stock5,984
BQ3285ES
Texas Instruments

IC RTC CLK/CALENDAR PAR 24-SOIC

Package: 24-SOIC (0.295", 7.50mm Width)

Stock18,192
CDP68HC68T1EZ
Intersil

IC RTC CLK/CALENDAR SPI 16-DIP

Package: 16-DIP (0.300", 7.62mm)

Stock7,376

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
ISL12029AIV27Z-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)	Stock6,000	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
ISL12059IBZ-T	Intersil	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Leap Year Memory Size: - Time Format: HH:MM:SS (24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 1.8 V ~ 3.6 V Voltage - Supply, Battery: - Current - Timekeeping (Max): 0.65µA @ 1.8V 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)	Stock6,176	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8 V ~ 3.6 V	-	0.65µA @ 1.8V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
ISL12030IBZ	Intersil	IC RTC CLK/CALENDAR I2C 8-SOIC Type: Clock/Calendar Features: Alarm, Daylight Savings, SRAM Memory Size: 128B 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: - Current - Timekeeping (Max): 18µA @ 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)	Stock4,224	Alarm, Daylight Savings, SRAM	128B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7 V ~ 5.5 V	-	18µA @ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
ISL12028IVZ	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)	Stock6,368	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
X1288V14Z	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:hh (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: 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)	Stock4,448	Alarm, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5 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
M41T00SC64MY6E	STMicroelectronics	IC RTC CLK/CALENDAR I2C 18-SOX Type: Clock/Calendar Features: EEPROM, Leap Year Memory Size: 8KB Time Format: HH:MM:SS Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 2.7 V ~ 5.5 V Voltage - Supply, Battery: 2.5 V ~ 35 V Current - Timekeeping (Max): 100µA (Typ) @ 2.7V ~ 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)	Stock4,864	EEPROM, Leap Year	8KB	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7 V ~ 5.5 V	2.5 V ~ 35 V	100µA (Typ) @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOX, 18-SOIC with Crystal (7.5mm Width)	18-SOX
MAX6917EO33+T	Maxim Integrated	IC RTC I2C COMPAT 20-QSOP Type: Clock/Calendar/Supervisor Features: - Memory Size: 96B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: I2C, 2-Wire Serial Voltage - Supply: 3 V ~ 3.6 V Voltage - Supply, Battery: - Current - Timekeeping (Max): - Operating Temperature: - Mounting Type: Surface Mount Package / Case: 20-SSOP (0.154", 3.90mm Width) Supplier Device Package: 20-QSOP	Package: 20-SSOP (0.154", 3.90mm Width)	Stock5,488	-	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	3 V ~ 3.6 V	-	-	-	Surface Mount	20-SSOP (0.154", 3.90mm Width)	20-QSOP
X1227S8Z-2.7	Intersil	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 ~ 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)	Stock5,952	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	0°C ~ 70°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
ISL12027IBZ	Intersil	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)	Stock6,784	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 ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
X1205S8Z	Intersil	IC RTC CLK/CALENDAR I2C 8-SOIC 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-SOIC (0.154", 3.90mm Width) Supplier Device Package: 8-SOIC	Package: 8-SOIC (0.154", 3.90mm Width)	Stock12,780	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-SOIC (0.154", 3.90mm Width)	8-SOIC
M48T201Y-70MH1E	STMicroelectronics	IC RTC CLK/CALENDAR PAR 44-SOH Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K 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: 3V Current - Timekeeping (Max): 3mA @ 4.5V ~ 5.5V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT Supplier Device Package: 44-SOH	Package: 44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	Stock4,048	Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	3V	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	44-SOH
DS2415X	Maxim Integrated	IC RTC BINARY CNT SER 6-FLIPCHIP Type: Binary Counter Features: Unique ID Memory Size: - Time Format: Binary Date Format: Binary Interface: 1-Wire? Serial Voltage - Supply: 2.5 V ~ 5.5 V Voltage - Supply, Battery: 2.5 V ~ 5.5 V Current - Timekeeping (Max): 0.25µA ~ 0.45µA @ 3V ~ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 6-XBGA, FCBGA Supplier Device Package: 6-FlipChip (2.82x2.54)	Package: 6-XBGA, FCBGA	Stock4,368	Unique ID	-	Binary	Binary	1-Wire? Serial	2.5 V ~ 5.5 V	2.5 V ~ 5.5 V	0.25µA ~ 0.45µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	6-XBGA, FCBGA	6-FlipChip (2.82x2.54)
DS1615S/T&R	Maxim Integrated	IC RTC TEMP REC SER 16-SOIC Type: Temperature Recorder Features: Alarm, Leap Year, Unique ID, Y2K Memory Size: 32B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: 3-Wire Serial Voltage - Supply: 4 V ~ 5.5 V Voltage - Supply, Battery: 2.7 V ~ 4.95 V Current - Timekeeping (Max): 0.5µA @ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 16-SOIC (0.295", 7.50mm Width) Supplier Device Package: 16-SOIC	Package: 16-SOIC (0.295", 7.50mm Width)	Stock7,936	Alarm, Leap Year, Unique ID, Y2K	32B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	4 V ~ 5.5 V	2.7 V ~ 4.95 V	0.5µA @ 5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC
DP8573AN	Texas Instruments	IC RTC CLK/CALENDAR PAR 24-DIP Type: Clock/Calendar Features: Alarm, Leap Year Memory Size: - Time Format: HH:MM:SS:hh (12/24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 4.5 V ~ 5.5 V Voltage - Supply, Battery: 2.2 V ~ 5.1 V Current - Timekeeping (Max): 1µA @ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Through Hole Package / Case: 24-DIP (0.300", 7.62mm) Supplier Device Package: 24-DIP	Package: 24-DIP (0.300", 7.62mm)	Stock50,148	Alarm, Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	2.2 V ~ 5.1 V	1µA @ 5V	-40°C ~ 85°C	Through Hole	24-DIP (0.300", 7.62mm)	24-DIP
MCP7940NT-I/MS	Microchip Technology	IC RTC CLK/CALENDAR I2C 8-MSOP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, SRAM Memory Size: 64B 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, 8-MSOP (0.118", 3.00mm Width) Supplier Device Package: 8-MSOP	Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Stock4,688	Alarm, Leap Year, Square Wave Output, SRAM	64B	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, 8-MSOP (0.118", 3.00mm Width)	8-MSOP
DS1554W-120+	Maxim Integrated	IC RTC CLK/CALENDAR PAR 32-EDIP Type: Clock/Calendar Features: Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K Memory Size: 32KB 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): 4mA @ 3.3V Operating Temperature: 0°C ~ 70°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)	Stock6,192	Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97 V ~ 3.63 V	-	4mA @ 3.3V	0°C ~ 70°C	Through Hole	32-DIP Module (0.600", 15.24mm)	32-EDIP
DS1500YEN+	Maxim Integrated	IC RTC CLK/CALENDAR PAR 32-TSOP 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: 4.5 V ~ 5.5 V Voltage - Supply, Battery: 2.5 V ~ 3.7 V Current - Timekeeping (Max): 5mA @ 4.5V ~ 5.5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 32-LFSOP (0.724", 18.40mm Width) Supplier Device Package: 32-TSOP	Package: 32-LFSOP (0.724", 18.40mm Width)	Stock6,752	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	2.5 V ~ 3.7 V	5mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	32-LFSOP (0.724", 18.40mm Width)	32-TSOP
DS1744-70IND+	Maxim Integrated	IC RTC CLK/CALENDAR PAR 28-EDIP Type: Clock/Calendar Features: Leap Year, NVSRAM, Y2K Memory Size: 32KB 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): 4mA @ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Through Hole Package / Case: 28-DIP Module (0.600", 15.24mm) Supplier Device Package: 28-EDIP	Package: 28-DIP Module (0.600", 15.24mm)	Stock5,984	Leap Year, NVSRAM, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	-	4mA @ 5V	-40°C ~ 85°C	Through Hole	28-DIP Module (0.600", 15.24mm)	28-EDIP
BQ3285ES	Texas Instruments	IC RTC CLK/CALENDAR PAR 24-SOIC Type: Clock/Calendar Features: Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output Memory Size: 242B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 4.5 V ~ 5.5 V Voltage - Supply, Battery: 2.5 V ~ 4 V Current - Timekeeping (Max): 300µA @ 5V Operating Temperature: 0°C ~ 70°C Mounting Type: Surface Mount Package / Case: 24-SOIC (0.295", 7.50mm Width) Supplier Device Package: 24-SOIC	Package: 24-SOIC (0.295", 7.50mm Width)	Stock18,192	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5 V ~ 5.5 V	2.5 V ~ 4 V	300µA @ 5V	0°C ~ 70°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
CDP68HC68T1EZ	Intersil	IC RTC CLK/CALENDAR SPI 16-DIP Type: Clock/Calendar Features: Alarm, Leap Year, Square Wave Output, Watchdog Timer Memory Size: 32B Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI Voltage - Supply: 3 V ~ 6 V Voltage - Supply, Battery: 2.2 V ~ 6 V Current - Timekeeping (Max): 20µA ~ 500µA @ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Through Hole Package / Case: 16-DIP (0.300", 7.62mm) Supplier Device Package: 16-PDIP	Package: 16-DIP (0.300", 7.62mm)	Stock7,376	Alarm, Leap Year, Square Wave Output, Watchdog Timer	32B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	3 V ~ 6 V	2.2 V ~ 6 V	20µA ~ 500µA @ 5V	-40°C ~ 85°C	Through Hole	16-DIP (0.300", 7.62mm)	16-PDIP
DS1374U-33+	Maxim Integrated	IC RTC BINARY CNT I2C 10-USOP Type: Binary Counter Features: Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer Memory Size: - Time Format: Binary Date Format: Binary Interface: I2C, 2-Wire Serial 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-uMAX	Package: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Stock61,836	Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer	-	Binary	Binary	I2C, 2-Wire Serial	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-uMAX
DS1390U-33+T&R	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)	Stock288,000	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
PCF8523TK/1,118	NXP	IC RTC CLK/CALENDAR I2C 8-HVSON Type: Clock/Calendar Features: Alarm, Leap Year, 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: 1.6 V ~ 5.5 V Voltage - Supply, Battery: 1.8 V ~ 5.5 V Current - Timekeeping (Max): 0.5µA @ 2V ~ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 8-VDFN Exposed Pad Supplier Device Package: 8-HVSON (4x4)	Package: 8-VDFN Exposed Pad	Stock43,254	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.6 V ~ 5.5 V	1.8 V ~ 5.5 V	0.5µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	8-VDFN Exposed Pad	8-HVSON (4x4)
1339B-31DVGI	IDT, Integrated Device Technology Inc	TIMING REAL TIME CLOCK 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: -	Stock3,600	-	-	-	-	-	-	-	-	-	-	-	-
RV-2123-C2-32-768KHZ-10PPM-TA-QC	Micro Crystal AG	IC RTC CLK/CALENDAR SPI 10SON Type: Clock/Calendar Features: Alarm, Leap Year, Programmable Clock Output, Timer Memory Size: - Time Format: HH:MM:SS (12/24 hr) Date Format: YY-MM-DD-dd Interface: SPI, 4-Wire Serial Voltage - Supply: 1.1V ~ 5.5V Voltage - Supply, Battery: - Current - Timekeeping (Max): 0.18µA @ 3V Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Package / Case: 10-TCDFN Exposed Pad Supplier Device Package: 10-SON (5x3.2)	Package: -	Request a Quote	Alarm, Leap Year, Programmable Clock Output, Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI, 4-Wire Serial	1.1V ~ 5.5V	-	0.18µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	10-TCDFN Exposed Pad	10-SON (5x3.2)
RX-8803LCUA0-PURE-SN	EPSON	RX-8803LC:UA0 PURE SN I2C-BUS RT Type: Clock/Calendar Features: Alarm Memory Size: - Time Format: HH:MM:SS Date Format: YY-MM-DD Interface: I2C Voltage - Supply: 1.6V ~ 5.5V Voltage - Supply, Battery: 1.6V ~ 5.5V 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: -	Request a Quote	Alarm	-	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	1.6V ~ 5.5V	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	12-TFSOJ (0.094", 2.40mm Width)	12-VSOJ
DS1743P-85IND	Analog Devices Inc./Maxim Integrated	IC RTC CLK/CALENDAR PAR 34PCM Type: Clock/Calendar Features: Leap Year, NVSRAM, Y2K Memory Size: 8KB Time Format: HH:MM:SS (24 hr) Date Format: YY-MM-DD-dd Interface: Parallel Voltage - Supply: 4.5V ~ 5.5V Voltage - Supply, Battery: 3V Current - Timekeeping (Max): 3mA @ 5V Operating Temperature: -40°C ~ 85°C Mounting Type: Surface Mount Package / Case: 34-PowerCap™ Module Supplier Device Package: 34-PowerCap Module	Package: -	Request a Quote	Leap Year, NVSRAM, Y2K	8KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	3mA @ 5V	-40°C ~ 85°C	Surface Mount	34-PowerCap™ Module	34-PowerCap Module
RV-3149-C3-32-768KHZ-OPTION-B-TB-QC	Micro Crystal AG	IC RTC CLK/CALENDAR SPI 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: SPI, 4-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	SPI, 4-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)