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Manufacturer
Diodes Incorporated (3)

Epson (2)

Maxim Integrated (16)

Microchip Technology (31)

NXP Semiconductors / Freescale (1)

NXP USA Inc. (12)

Renesas Electronics America Inc (1)

Rohm Semiconductor (1)

STMicroelectronics (31)

Texas Instruments (2)
Access Time
150 ns (2)

85 ns (1)

70 ns (3)

100 ns (1)
Additional Feature
10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.2V (1)
Address Bus Width
8b (1)
Base Part Number
M41T83 (1)

M41T93 (2)

M41T94 (1)

M48T08 (1)

M48T12 (1)

M48T201 (1)

M48T35 (3)

M48T37 (1)

MCP79400 (1)

MCP79401 (1)

MCP79402 (2)

MCP7940M (4)

MCP7940N (1)
Clock Frequency
0.4MHz (5)

5MHz (2)

0.032MHz (2)
Contact Plating
Tin (3)
Current - Timekeeping (Max)
10u03bcA @ 5.5V (3)

1.4mA @ 2.7V~5.5V (1)

3mA @ 4.7V~5.5V (1)

3mA @ 4.5V~5.5V (1)

2mA @ 3V~3.6V (2)

2mA @ 4.75V~5.5V (3)

1.2u03bcA Typ @ 3.3V (4)

1u03bcA @ 5.5V (4)

1.2u03bcA @ 3.3V (1)
Date Format
YY-MM-DD-dd (20)
ECCN Code
EAR99 (20)
External Data Bus Width
8 (2)
Factory Lead Time
25 Weeks (6)

10 Weeks (2)

26 Weeks (2)

7 Weeks (4)

6 Weeks (5)
Features
Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer (3)

Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer (1)

Leap Year, Watchdog Timer (1)

Leap Year (4)

Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K (1)

Alarm, Leap Year, Watchdog Timer (1)

Alarm, Leap Year, Square Wave Output, SRAM, Unique ID (4)

Alarm, Leap Year, Square Wave Output, SRAM (5)
Frequency
32.768kHz (2)

150GHz (1)

85GHz (1)

70GHz (2)

100GHz (1)
Height
2.39mm (1)

1.6mm (1)

8.89mm (4)

2.69mm (1)

1.5mm (2)

950u03bcm (2)

1.25mm (1)

750u03bcm (1)
Height Seated (Max)
2.69mm (1)

1mm (1)

3.05mm (2)

1.75mm (2)

1.2mm (1)
HTS Code
8542.39.00.01 (10)
Information Access Method
I2C (10)

SERIAL, 3-WIRE (1)
Interface
I2C, 2-Wire Serial (10)

SPI (3)

Parallel (7)
Interrupt Capability
Y (15)

N (5)
JESD-609 Code
e3 (17)

e4 (2)

e3/e4 (1)
Lead Free
Lead Free (15)
Length
11.61mm (1)

11.66mm (1)

4mm (1)

10mm (1)

39.88mm (3)

34.8mm (1)

18.49mm (1)

18.1mm (1)

4.9mm (5)

4.4mm (1)

3mm (2)

2mm (1)
Lifecycle Status
ACTIVE (Last Updated: 7 months ago) (5)

ACTIVE (Last Updated: 6 months ago) (2)
Load Capacitance
100pF (1)
Logic Function
Clock (20)
Max Power Dissipation
1W (1)
Memory Size
7B (1)

8kB (1)

2kB (1)

3.8MB (1)

32MB (1)

32kB (2)

250kB (1)

64B (6)
Memory Types
SRAM (2)
Moisture Sensitivity Level (MSL)
1 (Unlimited) (15)

3 (168 Hours) (5)
Mount
Surface Mount (13)

Through Hole (4)
Mounting Type
Surface Mount (16)

Through Hole (4)
Nominal Supply Current
80mA (2)
Non-Volatile Memory
7 B (2)

7 kB (1)

44 B (1)

64 B (3)
Number of Bits
8 (4)
Number of Pins
18 (2)

16 (2)

28 (4)

24 (1)

44 (2)

8 (9)
Number of Terminations
18 (2)

16 (2)

28 (4)

24 (1)

44 (2)

8 (9)
Number of Timers
1 (13)
Number of Voltages Monitored
1 (1)
Operating Supply Current
10mA (1)
Operating Supply Voltage
5V (5)

3.3V (2)
Operating Temperature
-40u00b0C~85u00b0C (13)

0u00b0C~70u00b0C (7)
Package / Case
18-SOX, 18-SOIC with Crystal (7.5mm Width) (2)

16-VQFN Exposed Pad (1)

16-SOIC (0.154, 3.90mm Width) (1)

28-DIP Module (0.600, 15.24mm) (3)

24-DIP Module (0.600, 15.24mm) (1)

44-BSOP (0.337, 8.56mm Width) requires SNAPHAT (2)

28-SOP (0.350, 8.89mm Width) with SNAPHAT Sockets (1)

8-SOIC (0.154, 3.90mm Width) (5)

8-TSSOP (0.173, 4.40mm Width) (1)

8-TSSOP, 8-MSOP (0.118, 3.00mm Width) (2)

8-WFDFN Exposed Pad (1)
Packaging
Tape & Reel (TR) (8)

Tube (12)
Part Status
Active (19)

Obsolete (1)
Peak Reflow Temperature (Cel)
240 (2)

260 (12)

245 (1)
Pin Count
18 (2)

16 (2)

28 (4)

24 (1)

44 (2)

8 (5)
Power Dissipation
1W (1)
Power Supplies
3/5V (4)

5V (4)

2/5V (9)
Published
2005 (1)

2011 (4)

2007 (2)

1998 (1)

2012 (1)
Radiation Hardening
No (20)
RAM (words)
8184 (1)

2040 (1)

32760 (2)
RAM Size
44B (1)
REACH SVHC
No SVHC (11)
RoHS Status
ROHS3 Compliant (20)
Screening Level
TS 16949 (4)
Series
Timekeeperu00ae (7)

Automotive, AEC-Q100 (1)
Supply Voltage
3V (4)

5V (5)

3.3V (2)

2.5V (9)
Surface Mount
YES (3)
Terminal Finish
Matte Tin (Sn) - annealed (11)

NICKEL/PALLADIUM/GOLD (NI/PD/AU) (1)

Matte Tin (Sn) (3)

TIN/NICKEL PALLADIUM GOLD (1)

Tin (Sn) (1)

Nickel/Palladium/Gold (Ni/Pd/Au) (1)
Terminal Pitch
1.27mm (9)

0.65mm (4)

2.54mm (4)

0.81mm (1)

0.5mm (1)
Terminal Position
DUAL (19)

QUAD (1)
Termination
Through Hole (1)
Time Format
HH:MM:SS:hh (24 hr) (4)

HH:MM:SS (24 hr) (7)

HH:MM:SS (12/24 hr) (9)
Time-Min
1/100SECOND (4)

SECONDS (16)
Time@Peak Reflow Temperature-Max (s)
30 (5)

40 (10)
Type
Clock/Calendar (20)
Usage Level
Industrial grade (8)

Commercial grade (5)

Automotive grade (4)
Volatile
NO (12)

YES (1)
Voltage - Supply
2.38V~5.5V (1)

2.7V~5.5V (3)

4.75V~5.5V (2)

4.5V~5.5V (3)

3V~3.6V (2)

1.8V~5.5V (9)
Voltage - Supply, Battery
2V~5.5V (1)

1.8V~5.5V (2)

2.5V~3.5V (1)

3V (1)

1.3V~5.5V (5)
Weight
57.09594mg (1)

4.190003g (3)

2.214806g (1)
Width
7.62mm (1)

7.67mm (1)

4mm (2)

18.34mm (4)

8.56mm (2)

8.89mm (1)

3.9mm (5)

3mm (4)

Categories

RTCs

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100 Results

Product	Inventory	Pricing(USD)	Datasheet	Access Time	Additional Feature	Address Bus Width	Base Part Number	Clock Frequency	Contact Plating	Current - Timekeeping (Max)	Date Format	ECCN Code	External Data Bus Width	Factory Lead Time	Features	Frequency	Height	Height Seated (Max)	HTS Code	Information Access Method	Interface	Interrupt Capability	JESD-609 Code	Lead Free	Length	Lifecycle Status	Load Capacitance	Logic Function	Max Power Dissipation	Memory Size	Memory Types	Moisture Sensitivity Level (MSL)	Mount	Mounting Type	Nominal Supply Current	Non-Volatile Memory	Number of Bits	Number of Pins	Number of Terminations	Number of Timers	Number of Voltages Monitored	Operating Supply Current	Operating Supply Voltage	Operating Temperature	Package / Case	Packaging	Part Status	Peak Reflow Temperature (Cel)	Pin Count	Power Dissipation	Power Supplies	Published	Radiation Hardening	RAM (words)	RAM Size	REACH SVHC	RoHS Status	Screening Level	Series	Supply Voltage	Surface Mount	Terminal Finish	Terminal Pitch	Terminal Position	Termination	Time Format	Time-Min	Time@Peak Reflow Temperature-Max (s)	Type	Usage Level	Volatile	Voltage - Supply	Voltage - Supply, Battery	Weight	Width
M41T83ZMY6F STMicroelectronics	5000	-	-	-	-	-	M41T83	0.4MHz	-	10u03bcA @ 5.5V	YY-MM-DD-dd	EAR99	-	25 Weeks	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	-	-	2.69mm	8542.39.00.01	I2C	I2C, 2-Wire Serial	Y	e3	Lead Free	11.61mm	ACTIVE (Last Updated: 7 months ago)	-	Clock	-	-	-	1 (Unlimited)	Surface Mount	Surface Mount	-	7 B	8	18	18	1	-	-	-	-40u00b0C~85u00b0C	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tape & Reel (TR)	Active	240	18	-	3/5V	-	No	-	-	-	ROHS3 Compliant	-	-	3V	-	Matte Tin (Sn) - annealed	1.27mm	DUAL	-	HH:MM:SS:hh (24 hr)	1/100SECOND	30	Clock/Calendar	Industrial grade	-	2.38V~5.5V	2V~5.5V	-	7.62mm
M41T93RMY6F STMicroelectronics	1000	-	-	-	-	-	M41T93	5MHz	-	10u03bcA @ 5.5V	YY-MM-DD-dd	EAR99	-	25 Weeks	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	-	2.39mm	-	8542.39.00.01	-	SPI	Y	e3	Lead Free	11.66mm	ACTIVE (Last Updated: 6 months ago)	-	Clock	-	7B	-	1 (Unlimited)	Surface Mount	Surface Mount	-	7 kB	8	18	18	1	-	-	-	-40u00b0C~85u00b0C	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tape & Reel (TR)	Active	240	18	-	3/5V	-	No	-	-	-	ROHS3 Compliant	-	-	3V	-	Matte Tin (Sn) - annealed	1.27mm	DUAL	-	HH:MM:SS:hh (24 hr)	1/100SECOND	30	Clock/Calendar	Industrial grade	-	2.7V~5.5V	1.8V~5.5V	-	7.67mm
M41T93RQA6F STMicroelectronics	650	-	-	-	-	-	M41T93	5MHz	-	10u03bcA @ 5.5V	YY-MM-DD-dd	EAR99	-	10 Weeks	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	-	-	1mm	8542.39.00.01	-	SPI	Y	e3	Lead Free	4mm	ACTIVE (Last Updated: 7 months ago)	-	Clock	-	-	-	1 (Unlimited)	Surface Mount	Surface Mount	-	7 B	8	16	16	1	-	-	-	-40u00b0C~85u00b0C	16-VQFN Exposed Pad	Tape & Reel (TR)	Active	260	16	-	3/5V	-	No	-	-	-	ROHS3 Compliant	-	-	3V	-	Matte Tin (Sn) - annealed	0.65mm	QUAD	-	HH:MM:SS:hh (24 hr)	1/100SECOND	40	Clock/Calendar	Industrial grade	-	2.7V~5.5V	1.8V~5.5V	57.09594mg	4mm
M41T94MQ6F STMicroelectronics	5000	-	-	-	-	-	M41T94	0.032MHz	Tin	1.4mA @ 2.7V~5.5V	YY-MM-DD-dd	EAR99	-	10 Weeks	Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer	-	1.6mm	-	8542.39.00.01	SERIAL, 3-WIRE	SPI	Y	e4	Lead Free	10mm	ACTIVE (Last Updated: 7 months ago)	-	Clock	-	-	-	3 (168 Hours)	Surface Mount	Surface Mount	-	44 B	-	16	16	1	-	-	-	-40u00b0C~85u00b0C	16-SOIC (0.154, 3.90mm Width)	Tape & Reel (TR)	Active	260	16	-	3/5V	-	No	-	44B	-	ROHS3 Compliant	-	-	3V	-	NICKEL/PALLADIUM/GOLD (NI/PD/AU)	1.27mm	DUAL	-	HH:MM:SS:hh (24 hr)	1/100SECOND	30	Clock/Calendar	Industrial grade	-	2.7V~5.5V	2.5V~3.5V	-	4mm
M48T08-150PC1 STMicroelectronics	240	-	-	150 ns	-	8b	M48T08	-	Tin	3mA @ 4.7V~5.5V	YY-MM-DD-dd	EAR99	-	25 Weeks	Leap Year, Watchdog Timer	32.768kHz	8.89mm	-	8542.39.00.01	-	Parallel	N	e3	Lead Free	39.88mm	ACTIVE (Last Updated: 7 months ago)	-	Clock	-	8kB	-	1 (Unlimited)	Through Hole	Through Hole	-	-	-	28	28	-	-	-	5V	0u00b0C~70u00b0C	28-DIP Module (0.600, 15.24mm)	Tube	Active	-	28	-	-	-	No	8184	-	No SVHC	ROHS3 Compliant	-	Timekeeperu00ae	5V	-	-	2.54mm	DUAL	Through Hole	HH:MM:SS (24 hr)	SECONDS	-	Clock/Calendar	Commercial grade	NO	4.75V~5.5V	-	4.190003g	18.34mm
M48T12-150PC1 STMicroelectronics	3120	-	-	150 ns	10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.2V	-	M48T12	-	-	3mA @ 4.5V~5.5V	YY-MM-DD-dd	EAR99	-	25 Weeks	Leap Year	150GHz	8.89mm	-	8542.39.00.01	-	Parallel	N	e3	Lead Free	34.8mm	ACTIVE (Last Updated: 6 months ago)	-	Clock	-	2kB	-	1 (Unlimited)	Through Hole	Through Hole	80mA	-	-	24	24	-	-	-	5V	0u00b0C~70u00b0C	24-DIP Module (0.600, 15.24mm)	Tube	Active	-	24	-	5V	-	No	2040	-	No SVHC	ROHS3 Compliant	-	Timekeeperu00ae	5V	-	Matte Tin (Sn)	2.54mm	DUAL	-	HH:MM:SS (24 hr)	SECONDS	-	Clock/Calendar	Commercial grade	NO	4.5V~5.5V	-	-	18.34mm
M48T201V-85MH1F STMicroelectronics	840	-	-	85 ns	-	-	M48T201	-	-	2mA @ 3V~3.6V	YY-MM-DD-dd	EAR99	8	26 Weeks	Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K	85GHz	-	3.05mm	-	-	Parallel	Y	e3/e4	Lead Free	-	-	-	Clock	1W	3.8MB	-	3 (168 Hours)	Surface Mount	Surface Mount	-	-	-	44	44	1	1	10mA	3.3V	0u00b0C~70u00b0C	44-BSOP (0.337, 8.56mm Width) requires SNAPHAT	Tape & Reel (TR)	Active	-	44	-	-	-	No	-	-	-	ROHS3 Compliant	-	Timekeeperu00ae	3.3V	-	TIN/NICKEL PALLADIUM GOLD	-	DUAL	-	HH:MM:SS (24 hr)	SECONDS	-	Clock/Calendar	-	NO	3V~3.6V	3V	-	8.56mm
M48T35-70PC1 STMicroelectronics	3120	-	-	70 ns	-	-	M48T35	-	-	2mA @ 4.75V~5.5V	YY-MM-DD-dd	EAR99	-	25 Weeks	Leap Year	32.768kHz	8.89mm	-	8542.39.00.01	-	Parallel	N	e3	Lead Free	39.88mm	-	-	Clock	-	32MB	-	1 (Unlimited)	Through Hole	Through Hole	-	-	-	28	28	-	-	-	5V	0u00b0C~70u00b0C	28-DIP Module (0.600, 15.24mm)	Tube	Active	-	28	-	5V	-	No	32760	-	No SVHC	ROHS3 Compliant	-	Timekeeperu00ae	5V	-	Matte Tin (Sn)	2.54mm	DUAL	-	HH:MM:SS (24 hr)	SECONDS	-	Clock/Calendar	Commercial grade	NO	4.75V~5.5V	-	4.190003g	18.34mm
M48T35Y-70MH1E STMicroelectronics	-	-	-	70 ns	-	-	M48T35	-	-	2mA @ 4.75V~5.5V	YY-MM-DD-dd	EAR99	-	-	Leap Year	70GHz	2.69mm	-	8542.39.00.01	-	Parallel	N	e3	Lead Free	18.49mm	-	-	Clock	-	32kB	SRAM	3 (168 Hours)	Surface Mount	Surface Mount	-	-	-	28	28	-	-	-	5V	0u00b0C~70u00b0C	28-SOP (0.350, 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	260	28	-	5V	-	No	-	-	No SVHC	ROHS3 Compliant	-	Timekeeperu00ae	5V	-	Tin (Sn)	1.27mm	DUAL	-	HH:MM:SS (24 hr)	SECONDS	30	Clock/Calendar	-	NO	4.5V~5.5V	-	2.214806g	8.89mm
M48T35Y-70PC1 STMicroelectronics	-	-	-	70 ns	-	-	M48T35	-	-	2mA @ 4.75V~5.5V	YY-MM-DD-dd	EAR99	-	25 Weeks	Leap Year	70GHz	8.89mm	-	8542.39.00.01	-	Parallel	N	e3	Lead Free	39.88mm	ACTIVE (Last Updated: 7 months ago)	100pF	Clock	-	32kB	SRAM	1 (Unlimited)	Through Hole	Through Hole	80mA	-	-	28	28	-	-	-	5V	0u00b0C~70u00b0C	28-DIP Module (0.600, 15.24mm)	Tube	Active	-	28	1W	5V	-	No	32760	-	No SVHC	ROHS3 Compliant	-	Timekeeperu00ae	5V	-	Matte Tin (Sn)	2.54mm	DUAL	-	HH:MM:SS (24 hr)	SECONDS	-	Clock/Calendar	Commercial grade	NO	4.5V~5.5V	-	4.190003g	18.34mm
M48T37V-10MH1F STMicroelectronics	736	-	-	100 ns	-	-	M48T37	-	Tin	2mA @ 3V~3.6V	YY-MM-DD-dd	EAR99	8	26 Weeks	Alarm, Leap Year, Watchdog Timer	100GHz	-	3.05mm	8542.39.00.01	-	Parallel	Y	e3	Lead Free	18.1mm	-	-	Clock	-	250kB	-	3 (168 Hours)	Surface Mount	Surface Mount	-	-	8	44	44	-	-	-	3.3V	0u00b0C~70u00b0C	44-BSOP (0.337, 8.56mm Width) requires SNAPHAT	Tape & Reel (TR)	Active	245	44	-	-	-	No	-	-	-	ROHS3 Compliant	-	Timekeeperu00ae	3.3V	-	-	0.81mm	DUAL	-	HH:MM:SS (24 hr)	SECONDS	30	Clock/Calendar	Commercial grade	NO	3V~3.6V	-	-	8.56mm
MCP79400-I/SN Microchip Technology	10000	-	-	-	-	-	MCP79400	0.4MHz	-	1.2u03bcA Typ @ 3.3V	YY-MM-DD-dd	EAR99	-	7 Weeks	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	-	1.5mm	-	-	I2C	I2C, 2-Wire Serial	Y	e3	Lead Free	4.9mm	-	-	Clock	-	64B	-	3 (168 Hours)	Surface Mount	Surface Mount	-	-	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-SOIC (0.154, 3.90mm Width)	Tube	Active	260	8	-	2/5V	2005	No	-	-	No SVHC	ROHS3 Compliant	TS 16949	-	2.5V	-	Matte Tin (Sn) - annealed	1.27mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Automotive grade	NO	1.8V~5.5V	1.3V~5.5V	-	3.9mm
MCP79401-I/SN Microchip Technology	10000	-	-	-	-	-	MCP79401	0.4MHz	-	1.2u03bcA Typ @ 3.3V	YY-MM-DD-dd	EAR99	-	6 Weeks	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	-	-	1.75mm	-	I2C	I2C, 2-Wire Serial	Y	e3	-	4.9mm	-	-	Clock	-	64B	-	1 (Unlimited)	Surface Mount	Surface Mount	-	-	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-SOIC (0.154, 3.90mm Width)	Tube	Active	260	8	-	2/5V	2011	No	-	-	No SVHC	ROHS3 Compliant	TS 16949	-	2.5V	-	Matte Tin (Sn) - annealed	1.27mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Automotive grade	NO	1.8V~5.5V	1.3V~5.5V	-	3.9mm
MCP79402-I/SN Microchip Technology	10000	-	-	-	-	-	MCP79402	0.4MHz	-	1.2u03bcA Typ @ 3.3V	YY-MM-DD-dd	EAR99	-	6 Weeks	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	-	1.5mm	-	-	I2C	I2C, 2-Wire Serial	Y	e3	-	4.9mm	-	-	Clock	-	64B	-	1 (Unlimited)	Surface Mount	Surface Mount	-	-	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-SOIC (0.154, 3.90mm Width)	Tube	Active	260	8	-	2/5V	2011	No	-	-	No SVHC	ROHS3 Compliant	TS 16949	-	2.5V	-	Matte Tin (Sn) - annealed	1.27mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Automotive grade	NO	1.8V~5.5V	1.3V~5.5V	-	3.9mm
MCP79402-I/ST Microchip Technology	5000	-	-	-	-	-	MCP79402	0.4MHz	-	1.2u03bcA Typ @ 3.3V	YY-MM-DD-dd	EAR99	-	6 Weeks	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	-	-	1.2mm	-	I2C	I2C, 2-Wire Serial	Y	e3	-	4.4mm	-	-	Clock	-	64B	-	1 (Unlimited)	Surface Mount	Surface Mount	-	-	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-TSSOP (0.173, 4.40mm Width)	Tube	Active	260	8	-	2/5V	2011	No	-	-	-	ROHS3 Compliant	TS 16949	-	2.5V	-	Matte Tin (Sn) - annealed	0.65mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Automotive grade	NO	1.8V~5.5V	1.3V~5.5V	-	3mm
MCP7940M-I/MS Microchip Technology	4327	-	-	-	-	-	MCP7940M	-	-	1u03bcA @ 5.5V	YY-MM-DD-dd	EAR99	-	7 Weeks	Alarm, Leap Year, Square Wave Output, SRAM	-	950u03bcm	-	-	I2C	I2C, 2-Wire Serial	Y	e3	Lead Free	3mm	-	-	Clock	-	-	-	1 (Unlimited)	-	Surface Mount	-	64 B	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-TSSOP, 8-MSOP (0.118, 3.00mm Width)	Tube	Active	260	-	-	2/5V	2007	No	-	-	No SVHC	ROHS3 Compliant	-	-	2.5V	YES	Matte Tin (Sn) - annealed	0.65mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	-	-	1.8V~5.5V	-	-	3mm
MCP7940M-I/SN Microchip Technology	99	-	-	-	-	-	MCP7940M	-	-	1u03bcA @ 5.5V	YY-MM-DD-dd	EAR99	-	6 Weeks	Alarm, Leap Year, Square Wave Output, SRAM	-	1.25mm	-	-	I2C	I2C, 2-Wire Serial	Y	e3	Lead Free	4.9mm	-	-	Clock	-	-	-	1 (Unlimited)	-	Surface Mount	-	64 B	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-SOIC (0.154, 3.90mm Width)	Tube	Active	260	-	-	2/5V	1998	No	-	-	No SVHC	ROHS3 Compliant	-	-	2.5V	YES	Matte Tin (Sn) - annealed	1.27mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Industrial grade	-	1.8V~5.5V	-	-	3.9mm
MCP7940MT-I/MNY Microchip Technology	-	-	-	-	-	-	MCP7940M	-	-	1u03bcA @ 5.5V	YY-MM-DD-dd	EAR99	-	6 Weeks	Alarm, Leap Year, Square Wave Output, SRAM	-	750u03bcm	-	-	I2C	I2C, 2-Wire Serial	Y	e4	Lead Free	2mm	-	-	Clock	-	-	-	1 (Unlimited)	-	Surface Mount	-	64 B	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-WFDFN Exposed Pad	Tape & Reel (TR)	Active	260	-	-	2/5V	2012	No	-	-	No SVHC	ROHS3 Compliant	-	-	2.5V	YES	Nickel/Palladium/Gold (Ni/Pd/Au)	0.5mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Industrial grade	-	1.8V~5.5V	-	-	3mm
MCP7940MT-I/SN Microchip Technology	35	-	-	-	-	-	MCP7940M	-	-	1u03bcA @ 5.5V	YY-MM-DD-dd	EAR99	-	7 Weeks	Alarm, Leap Year, Square Wave Output, SRAM	-	-	1.75mm	-	I2C	I2C, 2-Wire Serial	Y	e3	-	4.9mm	-	-	Clock	-	64B	-	1 (Unlimited)	Surface Mount	Surface Mount	-	-	-	8	8	1	-	-	-	-40u00b0C~85u00b0C	8-SOIC (0.154, 3.90mm Width)	Tape & Reel (TR)	Active	260	-	-	2/5V	2007	No	-	-	-	ROHS3 Compliant	-	-	2.5V	-	Matte Tin (Sn) - annealed	1.27mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Industrial grade	NO	1.8V~5.5V	-	-	3.9mm
MCP7940N-I/MS Microchip Technology	3	-	-	-	-	-	MCP7940N	0.032MHz	-	1.2u03bcA @ 3.3V	YY-MM-DD-dd	EAR99	-	7 Weeks	Alarm, Leap Year, Square Wave Output, SRAM	-	950u03bcm	-	-	I2C	I2C, 2-Wire Serial	Y	e3	-	3mm	-	-	Clock	-	64B	-	1 (Unlimited)	Surface Mount	Surface Mount	-	-	-	8	8	-	-	-	-	-40u00b0C~85u00b0C	8-TSSOP, 8-MSOP (0.118, 3.00mm Width)	Tube	Active	260	8	-	2/5V	2011	No	-	-	-	ROHS3 Compliant	-	Automotive, AEC-Q100	2.5V	-	Matte Tin (Sn) - annealed	0.65mm	DUAL	-	HH:MM:SS (12/24 hr)	SECONDS	40	Clock/Calendar	Industrial grade	YES	1.8V~5.5V	1.3V~5.5V	-	3mm

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