Specification	DS1343E-18+

Date Format	YY-MM-DD-dd
Features	Alarm, Trickle Charger, NVRAM, Square Wave Output, Leap Year
Interface	SPI
Memory Size	96 B
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	20-TSSOP
Package / Case [x]	0.173 "
Package / Case [y]	4.4 mm
Supplier Device Package	20-TSSOP
Time Format	HH:MM:SS (12/24 hr)
Type	Clock/Calendar
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	1.71 V
Voltage - Supply, Battery [Max]	5.5 V
Voltage - Supply, Battery [Min]	1.3 V

DS1343 Series

Part	Supplier Device Package	Features	Interface	Package / Case	Voltage - Supply, Battery [Max]	Voltage - Supply, Battery [Min]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Time Format	Date Format	Voltage - Supply [Max]	Voltage - Supply [Min]	Memory Size	Type	Package / Case [y]	Package / Case [x]	Current - Timekeeping (Max) [Min]	Current - Timekeeping (Max) [Max]
Analog Devices Inc./Maxim Integrated DS1343D-3+T&R	14-TDFN (3x3)	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	14-WFDFN Exposed Pad	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	2.7 V	96 B	Clock/Calendar
Analog Devices Inc./Maxim Integrated DS1343E-3+T&R	20-TSSOP	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	20-TSSOP	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	2.7 V	96 B	Clock/Calendar	4.4 mm	0.173 "
Analog Devices Inc./Maxim Integrated DS1343E-33+	20-TSSOP	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	20-TSSOP	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	3 V	96 B	Clock/Calendar	4.4 mm	0.173 "	120 µA	160 µA
Analog Devices Inc./Maxim Integrated DS1343E-18+	20-TSSOP	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	20-TSSOP	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	1.71 V	96 B	Clock/Calendar	4.4 mm	0.173 "
Analog Devices Inc./Maxim Integrated DS1343E-18+T&R	20-TSSOP	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	20-TSSOP	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	1.71 V	96 B	Clock/Calendar	4.4 mm	0.173 "
Analog Devices Inc./Maxim Integrated DS1343D-33+T&R	14-TDFN (3x3)	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	14-WFDFN Exposed Pad	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	3 V	96 B	Clock/Calendar			120 µA	160 µA
Analog Devices Inc./Maxim Integrated DS1343D-18+	14-TDFN (3x3)	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	14-WFDFN Exposed Pad	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	1.71 V	96 B	Clock/Calendar
Analog Devices Inc./Maxim Integrated DS1343E-3+	20-TSSOP	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	20-TSSOP	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	2.7 V	96 B	Clock/Calendar	4.4 mm	0.173 "
Analog Devices Inc./Maxim Integrated DS1343D-33+	14-TDFN (3x3)	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	14-WFDFN Exposed Pad	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	3 V	96 B	Clock/Calendar			120 µA	160 µA
Analog Devices Inc./Maxim Integrated DS1343E-33+T&R	20-TSSOP	Alarm Leap Year NVRAM Square Wave Output Trickle Charger	SPI	20-TSSOP	5.5 V	1.3 V	Surface Mount	85 °C	-40 C	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	5.5 V	3 V	96 B	Clock/Calendar	4.4 mm	0.173 "	120 µA	160 µA

Pricing

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

Distributor	Package	Quantity	$	Updated

Digikey	Tube	148	$ 3.30	<4d

Description

General part information

DS1343 Series

Real Time Clock (RTC) IC Clock/Calendar 96B SPI 20-TSSOP (0.173", 4.40mm Width)

Documents

Technical documentation and resources

Tips for Writing Bulletproof Real-Time Clock Control Code

DS1343E-18+ | Datasheet

Datasheet