INDUSTRIAL Timers & Real-Time Clocks 1,864

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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

M48T35AV-10MH6E

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

3.6 V

3.3

SMALL OUTLINE

SOP28,.5

N

3 V

85 Cel

-40 Cel

DUAL

3.05 mm

8.56 mm

8

10

260

18.1 mm

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G28

Not Qualified

NO

MCP79402T-I/ST

Microchip Technology

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

TS 16949

2/5

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.25

Y

1.8 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.2 mm

64

3 mm

0

.032 MHz

4.4 mm

1

CMOS

3 mA

SECONDS

2.5 V

Timer or RTC

.65 mm

R-PDSO-G8

Not Qualified

NO

e3

MCP79410-I/MNY

Microchip Technology

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

8

HVSON

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

TS 16949

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

ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL

0

.032 MHz

40

260

3 mm

1

CMOS

3 mA

SECONDS

2.5 V

Timers or RTCs

.5 mm

R-PDSO-N8

1

Not Qualified

NO

e4

PCF8583PN

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

I2C

6 V

8

IN-LINE

2.5 V

85 Cel

-40 Cel

DUAL

4.2 mm

256

7.62 mm

.1 MHz

40

250

9.5 mm

0

CMOS

.2 mA

5 V

2.54 mm

R-PDIP-T8

Not Qualified

RX8900CE:UA3

Seiko Epson

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

10

VSON

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

I2C

5.5 V

SMALL OUTLINE, VERY THIN PROFILE

SOLCC10,.098,27

Y

2.5 V

85 Cel

-40 Cel

DUAL

1 mm

2.5 mm

.032768 MHz

30

260

3.2 mm

CMOS

.1 mA

SECONDS

3 V

.7 mm

R-CDSO-N10

NO

CDP68HC68T1EZ

Renesas Electronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

SERIAL, 3-WIRE/SPI

6 V

8

IN-LINE

DIP16,.3

Y

3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

5.33 mm

32

7.62 mm

0

4 MHz

19.17 mm

0

CMOS

SECONDS

3.3 V

2.54 mm

R-PDIP-T16

YES

e3

DS1344E-33+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3.3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

Y

3 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.1 mm

4.4 mm

4 MHz

30

260

6.5 mm

1

CMOS

SECONDS

3.3 V

Timers or RTCs

.65 mm

R-PDSO-G20

1

Not Qualified

NO

e3

ISL12026IVZ-T

Renesas Electronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

2.7 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.2 mm

3 mm

30

260

4.4 mm

CMOS

3.3 V

.65 mm

R-PDSO-G8

1

e3

M41T81MX6

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

2.5/5

SMALL OUTLINE

SOP28,.4

Y

2 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

2.69 mm

7.62 mm

.032 MHz

17.96 mm

1

CMOS

1/100 SECOND

5 V

Timer or RTC

1.27 mm

R-PDSO-G28

Not Qualified

NO

e4

M41T94MQ6E

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3/5

SMALL OUTLINE

SOP16,.25

Y

2.7 V

85 Cel

-40 Cel

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

DUAL

1.75 mm

3.9 mm

WATCHDOG TIMER

.032 MHz

30

260

9.9 mm

1

CMOS

1/100 SECOND

3 V

Timer or RTC

1.27 mm

R-PDSO-G16

3

Not Qualified

YES

e4

DS12885SN+TR

Analog Devices

INDUSTRIAL

GULL WING

24

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, MUXED BUS

5.5 V

5

SMALL OUTLINE

SOP24,.4

Y

4.5 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

2.67 mm

7.5 mm

8

.032 MHz

30

260

17.9 mm

1

CMOS

SECONDS

5 V

Timer or RTC

1.27 mm

R-PDSO-G24

1

Not Qualified

NO

e3

DS1343E-3+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.1 mm

4.4 mm

4 MHz

30

260

6.5 mm

1

CMOS

SECONDS

3 V

Timers or RTCs

.65 mm

R-PDSO-G20

1

Not Qualified

NO

e3

DS1344E-3+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

3

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

1.1 mm

4.4 mm

4 MHz

30

260

6.5 mm

1

CMOS

SECONDS

3 V

Timers or RTCs

.65 mm

R-PDSO-G20

1

Not Qualified

NO

e3

DS1678S

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

5

SMALL OUTLINE

SOP8,.3

Y

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

2.13 mm

5.285 mm

.032 MHz

5.31 mm

0

CMOS

SECONDS

5 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e0

DS1678S+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

5

SMALL OUTLINE

SOP8,.3

Y

4.5 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

2.13 mm

5.285 mm

.032 MHz

30

260

5.31 mm

0

CMOS

SECONDS

5 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e3

IP82C54Z

Renesas Electronics

TIMER, PROGRAMMABLE

INDUSTRIAL

THROUGH-HOLE

24

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

PARALLEL, DIRECT ADDRESS

5.5 V

16

IN-LINE

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

6.35 mm

15.24 mm

8

8 MHz

31 mm

3

CMOS

5 V

2.54 mm

R-PDIP-T24

Not Qualified

e3

M41T00M6

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

N

2 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

.032 MHz

4.9 mm

0

CMOS

SECONDS

5 V

Timer or RTC

1.27 mm

R-PDSO-G8

1

Not Qualified

YES

e4

M41T82ZM6E

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

3/5

SMALL OUTLINE

SOP8,.25

Y

2.38 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

1.75 mm

3.9 mm

.4 MHz

40

260

4.9 mm

1

CMOS

1/100 SECOND

3 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e4

M48T35Y-70MH6E

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

5.5 V

5

SMALL OUTLINE

SOP28,.5

N

4.5 V

85 Cel

-40 Cel

DUAL

3.05 mm

8.56 mm

8

.032 MHz

10

260

18.1 mm

0

CMOS

SECONDS

5 V

Timers or RTCs

1.27 mm

R-PDSO-G28

Not Qualified

NO

M48T35Y-70MH6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

5.5 V

5

SMALL OUTLINE

SOP28,.5

N

4.5 V

85 Cel

-40 Cel

DUAL

3.05 mm

8.56 mm

8

.032 MHz

10

260

18.1 mm

0

CMOS

SECONDS

5 V

Timers or RTCs

1.27 mm

R-PDSO-G28

Not Qualified

NO

MCP795W20-I/SL

Microchip Technology

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

14

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL(SPI)

5.5 V

8

TS 16949

8

2/5

SMALL OUTLINE

SOP14,.24

Y

1.8 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

64

3.9 mm

ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ

0

.032 MHz

8.65 mm

1

CMOS

5 mA

1/100 SECOND

3 V

Timer or RTC

1.27 mm

R-PDSO-G14

Not Qualified

NO

e3

PCF2123BS/1,112

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

16

HVQCCN

SQUARE

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

8

1.1/5.5

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC16,.12SQ,20

Y

1.1 V

85 Cel

-40 Cel

MATTE TIN

QUAD

1 mm

3 mm

0

.032 MHz

3 mm

1

CMOS

SECONDS

2 V

Timer or RTC

.5 mm

S-PQCC-N16

1

Not Qualified

YES

e3

PCF8583P/F5,112

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

I2C

6 V

8

3/5

IN-LINE

DIP8,.3

Y

2.5 V

85 Cel

-40 Cel

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

DUAL

4.2 mm

256

7.62 mm

.1 MHz

40

250

9.5 mm

0

CMOS

.2 mA

1/100 SECOND

5 V

Timer or RTC

2.54 mm

R-PDIP-T8

Not Qualified

YES

e4

PT7C4339WEX

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE

SOP8,.23

Y

3 V

85 Cel

-40 Cel

DUAL

1.75 mm

3.885 mm

4.9 mm

1

CMOS

3.3 V

I2C

1.27 mm

R-PDSO-G8

NO

RX8130CE

Seiko Epson

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

10

VSON

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

1.5/5

SMALL OUTLINE, VERY THIN PROFILE

SOLCC10,.1,28

Y

1.25 V

85 Cel

-40 Cel

GOLD

DUAL

1 mm

2.5 mm

30

260

3.2 mm

CMOS

SECONDS

3 V

Timer or RTC

R-PDSO-N10

Not Qualified

NO

e4

DS1744W-120IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

28

DIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP32,.6

N

2.97 V

85 Cel

-40 Cel

TIN LEAD

DUAL

10.42 mm

15.24 mm

8

.032 MHz

38.865 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-XDMA-T28

Not Qualified

NO

e0

DS1744W-120IND+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

28

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

IN-LINE

DIP32,.6

N

2.97 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

10.668 mm

15.24 mm

8

.032 MHz

38.227 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-PDIP-T28

Not Qualified

NO

e3

M41T82SM6E

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

3.3/5

SMALL OUTLINE

SOP8,.25

Y

3 V

85 Cel

-40 Cel

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

DUAL

1.75 mm

3.9 mm

.4 MHz

30

260

4.9 mm

1

CMOS

1/100 SECOND

5 V

Timers or RTCs

1.27 mm

R-PDSO-G8

1

Not Qualified

NO

e4

M41T93RMY6E

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

18

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 4 WIRE/SPI

5.5 V

8

3/5

SMALL OUTLINE

SOP18,.4

Y

2.7 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

2.69 mm

7.62 mm

5 MHz

30

240

11.61 mm

1

CMOS

1/100 SECOND

3 V

Timers or RTCs

1.27 mm

R-PDSO-G18

1

Not Qualified

NO

e3

M48T35AV-10MH6

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

3.6 V

3.3

SMALL OUTLINE

SOP28,.5

N

3 V

85 Cel

-40 Cel

TIN LEAD

DUAL

3.05 mm

8.56 mm

8

.032 MHz

18.1 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G28

Not Qualified

NO

e0

M48T35AV-10MH6F

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

3.6 V

3.3

SMALL OUTLINE

SOP28,.5

N

3 V

85 Cel

-40 Cel

DUAL

3.05 mm

8.56 mm

8

10

260

18.1 mm

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G28

Not Qualified

NO

M48T35AV-10MH6TR

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

28

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

3.6 V

3.3

SMALL OUTLINE

SOP28,.5

N

3 V

85 Cel

-40 Cel

TIN LEAD

DUAL

3.05 mm

8.56 mm

8

.032 MHz

18.1 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

1.27 mm

R-PDSO-G28

Not Qualified

NO

e0

MCP795W21-I/SL

Microchip Technology

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

14

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL(SPI)

5.5 V

8

TS 16949

8

2/5

SMALL OUTLINE

SOP14,.24

Y

1.8 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

64

3.9 mm

ALSO OPEARTES AT 1.8 V MINIMUM SUPPLY AT 3 MHZ

0

.032 MHz

8.65 mm

1

CMOS

5 mA

1/100 SECOND

3 V

Timer or RTC

1.27 mm

R-PDSO-G14

Not Qualified

NO

e3

PCF8583BS,518

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

20

HVQCCN

SQUARE

PLASTIC/EPOXY

YES

I2C

6 V

3/5

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC20,.20SQ,25

Y

2.5 V

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

QUAD

1 mm

5 mm

TIMEKEEPING CURRENT = 10UA; AUTO WORD INCREMENTING

1

.1 MHz

5 mm

0

CMOS

1/100 SECOND

5 V

Timer or RTC

.65 mm

S-PQCC-N20

3

Not Qualified

YES

e4

PCF8583P

NXP Semiconductors

TIMER, REAL TIME CLOCK

INDUSTRIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

I2C

6 V

8

3/5

IN-LINE

DIP8,.3

Y

2.5 V

85 Cel

-40 Cel

DUAL

4.2 mm

248

7.62 mm

TIMEKEEPING CURRENT = 10UA; AUTO WORD INCREMENTING

0

1 MHz

40

250

9.5 mm

0

CMOS

.2 mA

1/100 SECOND

5 V

Timer or RTC

2.54 mm

R-PDIP-T8

Not Qualified

YES

RTC-4574SA:B

Seiko Epson

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

14

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

1.8/5

SMALL OUTLINE

SOP14,.3

Y

1.6 V

85 Cel

-40 Cel

DUAL

3.3 mm

5 mm

.032 MHz

NOT SPECIFIED

NOT SPECIFIED

10.1 mm

CMOS

SECONDS

3 V

Timer or RTC

1.27 mm

R-PDSO-G14

Not Qualified

YES

RTC-4574SA:B3:ROHS

Seiko Epson

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

14

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

1.8/5

SMALL OUTLINE

SOP14,.3

Y

1.6 V

85 Cel

-40 Cel

TIN

DUAL

3.3 mm

5 mm

0

.032 MHz

260

10.1 mm

0

CMOS

SECONDS

3 V

Timer or RTC

1.27 mm

R-PDSO-G14

Not Qualified

YES

e3

S-35390A-T8T1G

Ablic

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

TSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 2-WIRE/I2C

5.5 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

1.3 V

85 Cel

-40 Cel

TIN BISMUTH

DUAL

1.1 mm

3 mm

.032 MHz

10

260

4.4 mm

1

CMOS

3 V

.65 mm

R-PDSO-G8

Not Qualified

e6

1338-31DCGI

Renesas Electronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

SOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL(I2C)

5.5 V

8

SMALL OUTLINE

SOP8,.25

N

2.45 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.75 mm

56

3.9 mm

0

.032768 MHz

30

260

4.9 mm

1

CMOS

.025 mA

SECONDS

3.3 V

1.27 mm

R-PDSO-G8

1

NO

e3

AB-RTCMC-32.768KHZ-AIGZ-S7-T

Abracon

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

8

SON

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

I2C

4.4 V

SMALL OUTLINE

1 V

85 Cel

-40 Cel

GOLD OVER NICKEL

DUAL

.8 mm

1.5 mm

.032 MHz

10

260

3.2 mm

1

CMOS

2 V

.9 mm

R-CDSO-N8

1

e4

AB-RTCMK-32.768KHZ-T3

Abracon

TIMER, REAL TIME CLOCK

INDUSTRIAL

NO LEAD

8

VSON

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE, VERY THIN PROFILE

1.3 V

85 Cel

-40 Cel

DUAL

1 mm

2.5 mm

10

265

3.2 mm

CMOS

3 V

R-PDSO-N8

1

BU9873FVM-GTTR

ROHM

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

8

VSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH

1.8 V

85 Cel

-40 Cel

DUAL

.9 mm

2.8 mm

NOT SPECIFIED

NOT SPECIFIED

2.9 mm

CMOS

3 V

.65 mm

R-PDSO-G8

DS1248WP-120IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

J INVERTED

34

DIP

RECTANGULAR

UNSPECIFIED

YES

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP32,.6

N

2.97 V

85 Cel

-40 Cel

TIN LEAD

DUAL

8

CMOS

1/100 SECOND

3.3 V

Timer or RTC

2.54 mm

R-XDMA-U34

1

Not Qualified

NO

e0

DS1248WP-120IND+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

J INVERTED

34

RECTANGULAR

UNSPECIFIED

YES

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

MODULE,34LEAD,1.0

N

2.97 V

85 Cel

-40 Cel

MATTE TIN

DUAL

6.858 mm

23.495 mm

8

24.384 mm

CMOS

1/100 SECOND

3.3 V

Timer or RTC

1.27 mm

R-XDMA-U34

1

Not Qualified

NO

e3

DS1248WP-120-IND

Dallas Semiconductor

TIMER, REAL TIME CLOCK

INDUSTRIAL

J INVERTED

34

DIP

RECTANGULAR

UNSPECIFIED

YES

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP32,.6

N

2.97 V

85 Cel

-40 Cel

Tin/Lead (Sn/Pb)

DUAL

A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED

8

CMOS

1/100 SECOND

3.3 V

Timer or RTC

2.54 mm

R-XDMA-U34

Not Qualified

NO

e0

DS1251YP-70IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

J INVERTED

34

RECTANGULAR

UNSPECIFIED

YES

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

MODULE,34LEAD,1.0

N

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

USE DS9034PCX TO ORDER POWERCAP

8

CMOS

1/100 SECOND

5 V

Timer or RTC

R-XDMA-U34

Not Qualified

NO

e0

DS1251YP--70-IND

Dallas Semiconductor

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

34

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

MICROELECTRONIC ASSEMBLY

4.5 V

85 Cel

-40 Cel

DUAL

USE DS9034PCX TO ORDER POWERCAP

8

0

CMOS

5 V

R-XDMA-P34

Not Qualified

DS1251YP-70IND+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

J INVERTED

34

RECTANGULAR

UNSPECIFIED

YES

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

MODULE,34LEAD,1.0

N

4.5 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

6.858 mm

23.495 mm

USE DS9034PCX TO ORDER POWERCAP

8

24.384 mm

CMOS

1/100 SECOND

5 V

Timer or RTC

1.27 mm

R-XDMA-U34

Not Qualified

NO

e3

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.