DS1501YZ+

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Analog Devices Inc./Maxim Integrated

IC RTC CLK/CALENDAR PAR 28SOIC

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DS1501YZ+

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Analog Devices Inc./Maxim Integrated

IC RTC CLK/CALENDAR PAR 28SOIC

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DocumentsTips for Writing Bulletproof Real-Time Clock Control Code Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	DS1501YZ+

Current - Timekeeping (Max)	5 mA
Features	Square Wave Output, Y2K, NVSRAM, Alarm, Leap Year, Watchdog Timer
Interface	Parallel
Memory Size	256 B
Mounting Type	Surface Mount
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	28-SOIC
Package / Case [x]	0.295 in
Package / Case [y]	7.5 mm
Supplier Device Package	28-SOIC
Time Format	HH:MM:SS (24 hr)
Type	Clock/Calendar
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V
Voltage - Supply, Battery [Max]	3.7 V
Voltage - Supply, Battery [Min]	2.5 V

DS1501 Series

Part	Supplier Device Package	Voltage - Supply, Battery [Max]	Voltage - Supply, Battery [Min]	Type	Current - Timekeeping (Max)	Interface	Memory Size	Package / Case	Package / Case [x]	Package / Case [y]	Time Format	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Features	Package / Case	Package / Case
Analog Devices Inc./Maxim Integrated DS1501YSN+T&R	28-SOIC	3.7 V	2.5 V	Clock/Calendar	5 mA	Parallel	256 B	28-SOIC	0.295 in	7.5 mm	HH:MM:SS (24 hr)	4.5 V	5.5 V	Surface Mount	85 °C	-40 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K
Analog Devices Inc./Maxim Integrated DS1501WSN	28-SOIC	3.7 V	2.5 V	Clock/Calendar	4 mA	Parallel	256 B	28-SOIC	0.295 in	7.5 mm	HH:MM:SS (24 hr)	3 V	3.6 V	Surface Mount	85 °C	-40 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K
Analog Devices Inc./Maxim Integrated DS1501YE	28-TSOP	3.7 V	2.5 V	Clock/Calendar	5 mA	Parallel	256 B	28-TSSOP	0.465 "	11.8 mm	HH:MM:SS (24 hr)	4.5 V	5.5 V	Surface Mount	70 °C	0 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K
Analog Devices Inc./Maxim Integrated DS1501WSN+T&R	28-SOIC	3.7 V	2.5 V	Clock/Calendar	4 mA	Parallel	256 B	28-SOIC	0.295 in	7.5 mm	HH:MM:SS (24 hr)	3 V	3.6 V	Surface Mount	85 °C	-40 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K
Analog Devices Inc./Maxim Integrated DS1501YZ+	28-SOIC	3.7 V	2.5 V	Clock/Calendar	5 mA	Parallel	256 B	28-SOIC	0.295 in	7.5 mm	HH:MM:SS (24 hr)	4.5 V	5.5 V	Surface Mount	70 °C	0 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K
Analog Devices Inc./Maxim Integrated DS1501WS+T&R	28-SOIC	3.7 V	2.5 V	Clock/Calendar	4 mA	Parallel	256 B	28-SOIC	0.295 in	7.5 mm	HH:MM:SS (24 hr)	3 V	3.6 V	Surface Mount	70 °C	0 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K
Analog Devices Inc./Maxim Integrated DS1501YSN	28-SOIC	3.7 V	2.5 V	Clock/Calendar	5 mA	Parallel	256 B	28-SOIC	0.295 in	7.5 mm	HH:MM:SS (24 hr)	4.5 V	5.5 V	Surface Mount	85 °C	-40 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K
Analog Devices Inc./Maxim Integrated DS1501Y	28-PDIP	3.7 V	2.5 V	Clock/Calendar	5 mA	Parallel	256 B	28-DIP			HH:MM:SS (24 hr)	4.5 V	5.5 V	Through Hole	70 °C	0 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K	0.6 in	15.24 mm
Analog Devices Inc./Maxim Integrated DS1501W	28-PDIP	3.7 V	2.5 V	Clock/Calendar	4 mA	Parallel	256 B	28-DIP			HH:MM:SS (24 hr)	3 V	3.6 V	Through Hole	70 °C	0 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K	0.6 in	15.24 mm
Analog Devices Inc./Maxim Integrated DS1501YEN+	28-TSOP	3.7 V	2.5 V	Clock/Calendar	5 mA	Parallel	256 B	28-TSSOP	0.465 "	11.8 mm	HH:MM:SS (24 hr)	4.5 V	5.5 V	Surface Mount	85 °C	-40 °C	Alarm Leap Year NVSRAM Square Wave Output Watchdog Timer Y2K

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 19.04
		10	$ 13.80
		25	$ 12.45
		100	$ 10.95
		250	$ 10.22
		500	$ 9.84

Description

General part information

DS1501 Series

Real Time Clock (RTC) IC Clock/Calendar 256B Parallel 28-SOIC (0.295", 7.50mm Width)

Documents

Technical documentation and resources