Timers & Real-Time Clocks

Reset All
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

RTC-72423:A3:ROHS

Toyocom U S A

INDUSTRIAL

GULL WING

24

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL

5.5 V

5

SMALL OUTLINE

SOP24,.5

N

4.5 V

85 Cel

-40 Cel

TIN BISMUTH

DUAL

2.8 mm

7.9 mm

LG-MAX

4

260

16.3 mm

CMOS

SECONDS

5 V

Timer or RTC

1.27 mm

R-PDSO-G24

Not Qualified

YES

e6

M41ST87WMX6TR

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3/3.3

SMALL OUTLINE

SOP28,.4

Y

2.7 V

85 Cel

-40 Cel

MATTE TIN

DUAL

2.69 mm

7.62 mm

.032 MHz

30

260

17.96 mm

1

CMOS

1/100 SECOND

3 V

Timers or RTCs

1.27 mm

R-PDSO-G28

3

Not Qualified

NO

e3

RV-3032-C7-32.768KHZ2.5PPM-TA-QA

Micro Crystal Ag

TIMER, REAL TIME CLOCK

NO LEAD

8

SON

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

SERIAL(I2C)

5.5 V

8

AEC-Q200

SMALL OUTLINE

SOLCC8,.06,35

Y

1.3 V

85 Cel

-40 Cel

GOLD

DUAL

.8 mm

16384

1.5 mm

ALSO REQUIRED 1.4V-5.5V SUPPLY FOR I2C BUS ACTIVE

.032768 MHz

40

260

3.2 mm

CMOS

SECONDS

3 V

.9 mm

R-CDSO-N8

NO

e4

DS1337U

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

1.5/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

1.8 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.1 mm

3 mm

.032 MHz

245

3 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

S-PDSO-G8

1

Not Qualified

YES

e0

DS1337U+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

1.5/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

1.8 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

YES

e3

MC14536BDWG

Onsemi

TIMER, PROGRAMMABLE

MILITARY

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

18 V

SMALL OUTLINE

3 V

125 Cel

-55 Cel

MATTE TIN

DUAL

2.65 mm

7.5 mm

2 MHz

30

260

10.3 mm

1

CMOS

5 V

1.27 mm

R-PDSO-G16

3

Not Qualified

e3

PCF8563TD

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

DUAL

.032 MHz

NOT SPECIFIED

NOT SPECIFIED

0

CMOS

SECONDS

2 V

Timer or RTC

.635 mm

R-PDSO-G8

Not Qualified

YES

PCF8563BS/4,118

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

10

HVSSOP

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

2/5

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH

SOLCC10,.11,20

Y

1.8 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1 mm

3 mm

.032 MHz

30

260

3 mm

1

CMOS

SECONDS

2 V

Timer or RTC

.5 mm

S-PDSO-G10

1

Not Qualified

YES

e4

RTC-8564JE:B0:ROHS

Seiko Epson

TIMER, REAL TIME CLOCK

INDUSTRIAL

J BEND

20

LSOJ

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

1.8/5

SMALL OUTLINE, LOW PROFILE

SOJ20,.24,25

Y

1.8 V

85 Cel

-40 Cel

TIN SILVER

DUAL

1.5 mm

5.4 mm

.4 MHz

260

7 mm

CMOS

.0008 mA

SECONDS

3 V

Timers or RTCs

.65 mm

R-PDSO-J22

Not Qualified

YES

e2

BQ32000D

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

MCP79410T-I/SN

Microchip Technology

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

TS 16949

2/5

SMALL OUTLINE

SOP8,.23

Y

1.8 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

64

3.9 mm

ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL

0

.032 MHz

30

260

4.9 mm

1

CMOS

3 mA

SECONDS

2.5 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

PCF2131TFY

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

16

HVSON

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

SOLCC16,.14,20

Y

3.3 V

85 Cel

-40 Cel

DUAL

1.5 mm

3.5 mm

also operates with 0.5 mhz @ 1.2v min supply

6.5 MHz

260

4.5 mm

1

CMOS

.8 mA

1/100 SECOND

.5 mm

R-PDSO-N16

3

NO

M4T32-BR12SH1

STMicroelectronics

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

4

RECTANGULAR

UNSPECIFIED

NO

SPECIAL SHAPE

70 Cel

0 Cel

TIN

DUAL

1

CMOS

2.8 V

R-XDSS-P4

Not Qualified

e3

IS82C54-10Z96

Renesas Electronics

TIMER, PROGRAMMABLE

INDUSTRIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

5.5 V

16

CHIP CARRIER

4.5 V

85 Cel

-40 Cel

MATTE TIN

QUAD

4.57 mm

11.505 mm

8

30

245

11.505 mm

6

CMOS

5 V

1.27 mm

S-PQCC-J28

3

Not Qualified

e3

DS1683S+T&R

Analog Devices

TIMER, PROGRAMMABLE

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

Y

2.5 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.75 mm

3.9 mm

.4 MHz

30

260

4.9 mm

CMOS

SECONDS

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

DS1302S/T&R

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.3

N

2 V

70 Cel

0 Cel

TIN LEAD

DUAL

2.13 mm

5.285 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

5.31 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e0

DS1302S+T&R

Analog Devices

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.3

N

2 V

70 Cel

0 Cel

Matte Tin (Sn) - annealed

DUAL

2.13 mm

5.285 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

30

260

5.31 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e3

RTC-8564JE:BB:ROHS

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

TIN SILVER

DUAL

1.5 mm

5.4 mm

260

7 mm

CMOS

3 V

.65 mm

R-PDSO-J20

e2

PCF8583T/5,518

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

6 V

8

3/5

SMALL OUTLINE

SOP8,.4

Y

2.5 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

2.65 mm

256

7.5 mm

.032 MHz

260

7.55 mm

0

CMOS

.2 mA

1/100 SECOND

5 V

Timer or RTC

1.27 mm

R-PDSO-G8

2

Not Qualified

YES

e4

DS1305EN+T&R/C01

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

2 V

85 Cel

-40 Cel

DUAL

1.1 mm

4.4 mm

6.5 mm

CMOS

5 V

.65 mm

R-PDSO-G20

1

DS12887A

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

PARALLEL, MUXED BUS

5.5 V

5

IN-LINE

DIP24,.6

Y

4.5 V

70 Cel

0 Cel

TIN LEAD

DUAL

9.398 mm

15.24 mm

DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING; 10 YEARS DATA RETENTION; RAM CLEAR I/P

8

.032 MHz

33.782 mm

1

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-PDIP-T24

1

Not Qualified

NO

e0

DS12887A+

Analog Devices

TIMER, PROGRAMMABLE

COMMERCIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

PARALLEL, MUXED BUS

5.5 V

5

IN-LINE

DIP24,.6

Y

4.5 V

70 Cel

0 Cel

Matte Tin (Sn) - annealed

DUAL

9.398 mm

15.24 mm

8

.032 MHz

33.782 mm

1

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-PDIP-T24

Not Qualified

NO

e3

PCF8563T/F4

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

2/5

SMALL OUTLINE

SOP8,.25

Y

1.8 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

0

.032 MHz

30

260

4.9 mm

1

CMOS

SECONDS

2 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e4

PCF85063BTL/1,118

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

10

HVSON

SQUARE

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

1.2/5

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

SOLCC10,.11,20

Y

.9 V

85 Cel

-40 Cel

DUAL

.5 mm

2.6 mm

260

2.6 mm

1

CMOS

SECONDS

3.3 V

Timers or RTCs

.5 mm

S-PDSO-N10

1

Not Qualified

YES

STWD100YNYWY3F

STMicroelectronics

TIMER, PROGRAMMABLE

AUTOMOTIVE

GULL WING

5

LSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

5.5 V

AEC-Q100

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

2.7 V

125 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.45 mm

1.6 mm

0

260

2.9 mm

0

CMOS

5 V

.95 mm

R-PDSO-G5

1

e4

PCF85263ATT/AJ

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

SQUARE

PLASTIC/EPOXY

YES

SERIAL(I2C)

5.5 V

8

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Y

.9 V

85 Cel

-40 Cel

DUAL

1.1 mm

1

3 mm

0

.032768 MHz

260

3 mm

1

CMOS

.000885 mA

SECONDS

3.3 V

.65 mm

S-PDSO-G8

1

NO

PCF8523TS/1,112

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

14

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

1.2/5.5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP14,.25

Y

1.2 V

85 Cel

-40 Cel

DUAL

1.1 mm

4.4 mm

.032 MHz

260

5 mm

1

CMOS

SECONDS

3 V

Timer or RTC

.65 mm

R-PDSO-G14

1

Not Qualified

YES

DS1302S

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.3

N

2 V

70 Cel

0 Cel

TIN LEAD

DUAL

2.13 mm

5.285 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

20

240

5.31 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e0

DS1302S+

Analog Devices

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP8,.3

N

2 V

70 Cel

0 Cel

Matte Tin (Sn) - annealed

DUAL

2.13 mm

5.285 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

30

260

5.31 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e3

MCP7940NT-I/MNY

Microchip Technology

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

8

HVSON

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

AEC-Q100

2/5

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

SOLCC8,.11,20

Y

1.8 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

.8 mm

64

2 mm

0

.032 MHz

40

260

3 mm

1

CMOS

.4 mA

SECONDS

2.5 V

Timer or RTC

.5 mm

R-PDSO-N8

1

Not Qualified

YES

e4

M41T83SMY6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

18

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL(I2C)

5.5 V

8

8

3.3/5

SMALL OUTLINE

SOP8,.4

Y

3 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

2.69 mm

7

7.62 mm

.4 MHz

30

240

11.61 mm

1

CMOS

.15 mA

1/100 SECOND

5 V

Timers or RTCs

1.27 mm

R-PDSO-G18

1

Not Qualified

NO

e3

DS1390U-33

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

10

TSSOP

SQUARE

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP10,.19,20

Y

2.97 V

85 Cel

-40 Cel

Tin/Lead (Sn/Pb)

DUAL

1.1 mm

3 mm

.032 MHz

20

240

3 mm

1

CMOS

1/100 SECOND

3.3 V

Timer or RTC

.5 mm

S-PDSO-G10

1

Not Qualified

YES

e0

DS1390U-33+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

10

TSSOP

SQUARE

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP10,.19,20

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

1/100 SECOND

3.3 V

Timers or RTCs

.5 mm

S-PDSO-G10

1

Not Qualified

NO

e3

PCF2129T/2

NXP Semiconductors

TIMER, MEMORY REFRESH

INDUSTRIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

4.2 V

SMALL OUTLINE

1.8 V

85 Cel

-40 Cel

DUAL

2.65 mm

7.5 mm

.032 MHz

10.3 mm

1

CMOS

2 V

1.27 mm

R-PDSO-G16

RV-8803-C7TAQC

Micro Crystal Ag

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

8

SON

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE

1.5 V

85 Cel

-40 Cel

GOLD OVER NICKEL

DUAL

.8 mm

1.5 mm

0

40

260

3.2 mm

CMOS

3 V

.9 mm

R-PDSO-N8

1

e4

DS1683S+

Analog Devices

TIMER, PROGRAMMABLE

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3/5

SMALL OUTLINE

SOP8,.25

Y

2.5 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.75 mm

3.9 mm

.4 MHz

30

260

4.9 mm

CMOS

SECONDS

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

PCF2123TS/1,112

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

260

5 mm

1

CMOS

SECONDS

1.6 V

Timers or RTCs

.65 mm

R-PDSO-G14

1

Not Qualified

YES

e4

PCF85063ATL/1

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

10

HVSON

SQUARE

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

.9 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

.5 mm

2.6 mm

ALSO OPERATES AT 1.8 V AT 400KHZ

.032 MHz

30

260

2.6 mm

1

CMOS

3.3 V

.5 mm

S-PDSO-N10

1

e4

M41T82SM6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL(I2C)

5.5 V

8

8

3.3/5

SMALL OUTLINE

SOP8,.25

Y

3 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

7

3.9 mm

.4 MHz

30

260

4.9 mm

1

CMOS

.15 mA

1/100 SECOND

5 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e4

DS1337

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

I2C

5.5 V

1.5/5

IN-LINE

DIP8,.3

Y

1.8 V

85 Cel

-40 Cel

TIN LEAD

DUAL

4.572 mm

7.62 mm

.032 MHz

9.375 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-PDIP-T8

1

Not Qualified

YES

e0

DS1337+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

I2C

5.5 V

1.5/5

IN-LINE

DIP8,.3

Y

1.8 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

4.572 mm

7.62 mm

.032 MHz

30

260

9.375 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-PDIP-T8

1

Not Qualified

YES

e3

DS3232S#

Analog Devices

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

3.3

SMALL OUTLINE

SOP20,.4

Y

2.3 V

70 Cel

0 Cel

Matte Tin (Sn) - annealed

DUAL

2.65 mm

7.5 mm

0

.032 MHz

12.8 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G20

1

Not Qualified

NO

e3

DS1302SN/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,.3

N

2 V

85 Cel

-40 Cel

TIN LEAD

DUAL

2.13 mm

5.285 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

5.31 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e0

DS1302SN+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,.3

N

2 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

2.13 mm

5.285 mm

BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA

.032 MHz

30

260

5.31 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e3

IS82C54-10Z

Renesas Electronics

TIMER, PROGRAMMABLE

INDUSTRIAL

J BEND

28

QCCJ

SQUARE

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

5.5 V

16

CHIP CARRIER

4.5 V

85 Cel

-40 Cel

MATTE TIN

QUAD

4.57 mm

11.505 mm

8

10 MHz

30

245

11.505 mm

3

CMOS

5 V

1.27 mm

S-PQCC-J28

3

Not Qualified

e3

RTC-8564JEB

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

TIN LEAD

DUAL

1.5 mm

5.4 mm

7 mm

1

CMOS

2 V

.65 mm

R-PDSO-J20

Not Qualified

e0

PCA21125T/Q900/1,1

NXP Semiconductors

AUTOMOTIVE

GULL WING

14

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 4 WIRE/SPI

5.5 V

AEC-Q100

1.5/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP14,.25

Y

1.3 V

125 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.1 mm

4.4 mm

30

260

5 mm

1

CMOS

SECONDS

3 V

Timer or RTC

.65 mm

R-PDSO-G14

1

Not Qualified

NO

e4

M41T81SM6E

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

DUAL

1.75 mm

3.9 mm

.032 MHz

40

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

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.