Timers & Real-Time Clocks

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Part RoHS Manufacturer Peripheral IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Package Body Material Surface Mount Information Access Method Maximum Supply Voltage On Chip Data RAM Width Screening Level No. of Bits Maximum Output Clock Frequency Power Supplies (V) Package Style (Meter) Package Equivalence Code Interrupt Capability Minimum Supply Voltage Maximum Operating Temperature Minimum Operating Temperature Terminal Finish Terminal Position Maximum Seated Height RAM Words Width Additional Features External Data Bus Width Maximum Clock Frequency Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length Total Dose (V) No. of Timers Technology Maximum Supply Current Minimum Time Nominal Supply Voltage Sub-Category Bus Compatibility Terminal Pitch JESD-30 Code Moisture Sensitivity Level (MSL) Qualification Volatile JESD-609 Code

M41T81SM6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

Y

2.7 V

85 Cel

-40 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

DUAL

1.75 mm

3.9 mm

.032 MHz

30

260

4.9 mm

1

CMOS

1/100 SECOND

5 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e4

DS3232SN#T&R

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE

SOP20,.4

Y

2.3 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

2.65 mm

7.5 mm

0

.032 MHz

30

260

12.8 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G20

1

Not Qualified

NO

e3

DS3231M+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE

SOP16,.4

Y

2.3 V

85 Cel

-40 Cel

DUAL

2.65 mm

7.5 mm

.4 MHz

30

260

10.3 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G16

3

Not Qualified

NO

DS3231M+TRL

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE

SOP16,.4

Y

2.3 V

85 Cel

-45 Cel

DUAL

2.65 mm

7.5 mm

30

260

10.3 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G16

3

Not Qualified

NO

ISL12057IUZ-T

Renesas Electronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

3.6 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

1.8 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.1 mm

3 mm

0

.032 MHz

30

260

3 mm

CMOS

3 V

.65 mm

S-PDSO-G8

1

Not Qualified

e3

PCF2129T/2,518

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

4.2 V

2/4

SMALL OUTLINE

SOP16,.4

Y

1.8 V

85 Cel

-40 Cel

DUAL

2.65 mm

7.5 mm

.032 MHz

260

10.3 mm

1

CMOS

SECONDS

2 V

Timers or RTCs

1.27 mm

R-PDSO-G16

3

Not Qualified

NO

DS3231MZ/V+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

AEC-Q100

3.3

SMALL OUTLINE

SOP8,.25

Y

2.3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

3.9 mm

30

260

4.9 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

DS3232MZ+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

4.5 V

2.5/4

SMALL OUTLINE

SOP8,.25

Y

2.3 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.75 mm

3.9 mm

.032 MHz

30

260

4.9 mm

1

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

DS1302ZN

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

N

2 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.75 mm

3.9 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

20

240

4.9 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e0

DS1302ZN+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

N

2 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.75 mm

3.9 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

30

260

4.9 mm

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e3

DS3232SN#

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE

SOP20,.4

Y

2.3 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

2.65 mm

7.5 mm

0

.032 MHz

30

260

12.8 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G20

1

Not Qualified

NO

e3

PCF8563T/F4,118

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

2/5

SMALL OUTLINE

SSOP8,.25

Y

1.8 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

.032 MHz

30

260

0

CMOS

SECONDS

2 V

Timer or RTC

.635 mm

R-PDSO-G8

1

Not Qualified

YES

e4

PCF8523T/1,118

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

1.2/5.5

SMALL OUTLINE

SOP8,.25

Y

1.2 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

.032 MHz

30

260

4.9 mm

1

CMOS

SECONDS

3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e4

DS1307ZN+T&R/C02

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

3.9 mm

4.9 mm

1

CMOS

5 V

1.27 mm

R-PDSO-G8

1

e3

M41T00SM6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

N

2.7 V

85 Cel

-40 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

DUAL

1.75 mm

3.9 mm

0

.032 MHz

30

260

4.9 mm

0

CMOS

SECONDS

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e4

DS1340Z-33/T&R

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE

SOP8,.25

N

2.97 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.75 mm

3.9 mm

.032 MHz

4.9 mm

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

Not Qualified

NO

e0

DS1340Z-33+T&R

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE

SOP8,.25

N

2.97 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.75 mm

3.9 mm

.032 MHz

30

260

4.9 mm

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

DS1302ZN/T&R

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

N

2 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.75 mm

3.9 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

4.9 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e0

DS1302ZN+T&R

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

N

2 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.75 mm

3.9 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

30

260

4.9 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e3

M41T62Q6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

16

HVQCCN

SQUARE

UNSPECIFIED

YES

I2C

4.4 V

1.5/3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC16,.12SQ,20

Y

1.3 V

85 Cel

-40 Cel

Matte Tin (Sn)

QUAD

1 mm

3 mm

.032 MHz

30

260

3 mm

1

CMOS

1/100 SECOND

2 V

Timer or RTC

.5 mm

S-XQCC-N16

1

Not Qualified

YES

e3

ISL12057IUZ

Renesas Electronics

TIMER, REAL TIME CLOCK

MATTE TIN

30

260

1

e3

PCF85063TP/1Z

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

8

HVSON

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

1.2/5

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

SOLCC8,.12,20

N

.9 V

85 Cel

-40 Cel

DUAL

.8 mm

2 mm

30

260

3 mm

1

CMOS

SECONDS

3.3 V

Timers or RTCs

.5 mm

R-PDSO-N8

1

Not Qualified

YES

RV-3028-C7-32.768KHZ1PPM-TA-QA

Micro Crystal Ag

TIMER, REAL TIME CLOCK

GOLD OVER NICKEL

40

260

1

e4

MCP79510-I/MS

Microchip Technology

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

10

TSSOP

SQUARE

PLASTIC/EPOXY

YES

SERIAL(SPI)

3.6 V

8

TS 16949

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP10,.19,20

Y

1.8 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.1 mm

64

3 mm

ALSO OPEARTES AT 1.8V MIN SUPPLY AT 3MHZ CLOCK FREQ

0

.032 MHz

40

260

3 mm

1

CMOS

5 mA

1/100 SECOND

3 V

.5 mm

S-PDSO-G10

2

NO

e3

PCF8563TS/5,118

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

2/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

1.8 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.1 mm

3 mm

0

.032 MHz

30

260

3 mm

1

CMOS

SECONDS

2 V

Timer or RTC

.65 mm

S-PDSO-G8

1

Not Qualified

YES

e4

RV-3028-C7TAQC

Micro Crystal Ag

TIMER, REAL TIME CLOCK

NO LEAD

8

VSON

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

I2C

5.5 V

8

SMALL OUTLINE, VERY THIN PROFILE

SOLCC8,.06,35

Y

1.1 V

85 Cel

-40 Cel

GOLD OVER NICKEL

DUAL

.8 mm

1

1.5 mm

40

260

3.2 mm

CMOS

.00000006 mA

SECONDS

3 V

.9 mm

R-CDSO-N8

1

NO

e4

DS1305EN/T&R

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

Y

2 V

85 Cel

-40 Cel

Tin/Lead (Sn/Pb)

DUAL

1.1 mm

4.4 mm

0

.032 MHz

20

240

6.5 mm

0

CMOS

SECONDS

5 V

Timer or RTC

.65 mm

R-PDSO-G20

1

Not Qualified

YES

e0

DS1305EN+T&R

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

Y

2 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.1 mm

4.4 mm

0

.032 MHz

30

260

6.5 mm

0

CMOS

SECONDS

5 V

Timer or RTC

.65 mm

R-PDSO-G20

1

Not Qualified

YES

e3

PCF8563TS/4,118

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

2/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

1.8 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.1 mm

3 mm

.032 MHz

30

260

3 mm

1

CMOS

SECONDS

2 V

Timer or RTC

.65 mm

S-PDSO-G8

1

Not Qualified

YES

e4

DS3232MZ/V+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

4.5 V

AEC-Q100

2.5/4

SMALL OUTLINE

SOP8,.25

Y

2.3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

3.9 mm

.032 MHz

30

260

4.9 mm

1

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

PCF2123TS/1,118

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

14

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

1.1/5.5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP14,.25

Y

1.1 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.1 mm

4.4 mm

.032 MHz

30

260

5 mm

1

CMOS

SECONDS

1.6 V

Timers or RTCs

.65 mm

R-PDSO-G14

1

Not Qualified

YES

e4

DS1339U-33/T&R

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

2.97 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.1 mm

3 mm

.032 MHz

3 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

S-PDSO-G8

1

Not Qualified

NO

e0

DS1339U-33+T&R

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

3.63 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

2.97 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.1 mm

3 mm

.032 MHz

30

260

3 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

S-PDSO-G8

1

Not Qualified

NO

e3

M41T81M6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

2.5/5

SMALL OUTLINE

SOP8,.25

Y

2 V

85 Cel

-40 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

DUAL

1.75 mm

3.9 mm

.032 MHz

30

260

4.9 mm

1

CMOS

1/100 SECOND

5 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e4

RTC-8564JE

Seiko Epson

TIMER, REAL TIME CLOCK

INDUSTRIAL

J BEND

20

SOJ

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE

1.8 V

85 Cel

-40 Cel

DUAL

1.5 mm

5.4 mm

0

.032 MHz

NOT SPECIFIED

NOT SPECIFIED

7 mm

0

CMOS

3 V

.65 mm

R-PDSO-J20

Not Qualified

DS3232MZ/V+T

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

4.5 V

AEC-Q100

SMALL OUTLINE

2.3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

3.9 mm

30

260

4.9 mm

1

CMOS

3.3 V

1.27 mm

R-PDSO-G8

1

e3

BQ32000DR

Texas Instruments

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE

SOP8,.25

N

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

0

.032 MHz

30

260

4.9 mm

CMOS

SECONDS

3.3 V

Timer or RTC

I2C

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e4

PCF2127AT/2Y

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

4.2 V

2/4

SMALL OUTLINE

SOP20,.4

Y

1.8 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

2.65 mm

7.5 mm

30

260

12.8 mm

1

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G20

3

Not Qualified

YES

e4

PCF8563TS/F4,118

NXP Semiconductors

DS1307

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

I2C

5.5 V

5

IN-LINE

DIP8,.3

N

4.5 V

70 Cel

0 Cel

Tin/Lead (Sn/Pb)

DUAL

4.572 mm

7.62 mm

.032 MHz

20

240

9.375 mm

1

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-PDIP-T8

1

Not Qualified

YES

e0

DS1307+

Analog Devices

TIMER, REAL TIME CLOCK

COMMERCIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

I2C

5.5 V

5

IN-LINE

DIP8,.3

N

4.5 V

70 Cel

0 Cel

Matte Tin (Sn) - annealed

DUAL

4.572 mm

7.62 mm

.032 MHz

30

260

9.375 mm

1

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-PDIP-T8

1

Not Qualified

YES

e3

M4T32-BR12SH6

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

4

RECTANGULAR

UNSPECIFIED

NO

SERIAL

N

85 Cel

-40 Cel

DUAL

8.128 mm

17.653 mm

0

.032768 MHz

40

260

21.463 mm

CMOS

2.8 V

R-XDSS-P4

Not Qualified

NO

PCF85263ATL/AX

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

10

HVSON

SQUARE

PLASTIC/EPOXY

YES

SERIAL(I2C)

5.5 V

8

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

SOLCC10,.11,20

Y

.9 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

.5 mm

1

2.6 mm

0

.032768 MHz

30

260

2.6 mm

1

CMOS

.000885 mA

SECONDS

3.3 V

.5 mm

S-PDSO-N10

1

NO

e4

DS1339U-33

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

2.97 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.1 mm

3 mm

.032 MHz

20

240

3 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

S-PDSO-G8

1

Not Qualified

NO

e0

DS1339U-33+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

2.97 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.1 mm

3 mm

.032 MHz

30

260

3 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

S-PDSO-G8

1

Not Qualified

NO

e3

RTC-8564JE:B3:ROHS

Seiko Epson

TIMER, REAL TIME CLOCK

INDUSTRIAL

J BEND

20

SOJ

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

1.8/5

SMALL OUTLINE

SSOJ20,.25

Y

1.8 V

85 Cel

-40 Cel

TIN SILVER

DUAL

1.5 mm

5.4 mm

260

7 mm

CMOS

SECONDS

3 V

Timers or RTCs

.65 mm

R-PDSO-J20

Not Qualified

YES

e2

PCF85063AT/AAZ

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE

SOP8,.25

Y

.9 V

85 Cel

-40 Cel

DUAL

1.75 mm

3.9 mm

ALSO OPERATES AT 1.8 V AT 400KHZ

.032768 MHz

260

4.9 mm

1

CMOS

50 mA

SECONDS

3.3 V

1.27 mm

R-PDSO-G8

2

NO

M4T32-BR12SH6TR

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

4

RECTANGULAR

UNSPECIFIED

NO

SPECIAL SHAPE

85 Cel

-40 Cel

DUAL

1

CMOS

2.8 V

R-XDSS-P4

Not Qualified

Timers & Real-Time Clocks

Timers and real-time clocks (RTCs) are electronic devices that are used to measure and track time intervals in electronic systems. They are crucial components in many applications, such as control systems, automation systems, and consumer electronics.

A timer is an electronic device that is used to measure the duration of time intervals. Timers can be either digital or analog and can be used to measure time intervals ranging from microseconds to hours or even days. They can be used for a variety of applications, such as controlling the duration of a signal or triggering an event after a specified time interval.

A real-time clock (RTC) is a clock that keeps track of the current time and date. Unlike a timer, an RTC is capable of keeping track of time even when the system is powered off. RTCs are commonly used in consumer electronics such as watches, clocks, and digital cameras, as well as in control systems, data loggers, and other applications that require accurate timekeeping.