QIP Timers & Real-Time Clocks 21

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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

DS1747-70IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

32

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP32,.6

N

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

10.922 mm

15.24 mm

8

.032 MHz

43.053 mm

0

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-XDMA-P32

Not Qualified

NO

e0

DS1743W-150IND+

Analog Devices

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

85 Cel

-40 Cel

Matte Tin (Sn) - annealed

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

2.54 mm

R-XDMA-P28

Not Qualified

NO

e3

DS1744+100

Analog Devices

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

IN-LINE

DIP32,.6

N

4.5 V

70 Cel

0 Cel

Matte Tin (Sn) - annealed

DUAL

9.02 mm

15.24 mm

8

.032 MHz

37.595 mm

0

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-XDIP-P28

Not Qualified

NO

e3

DS1486-120

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

32

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

IN-LINE

DIP32,.6

Y

4.5 V

70 Cel

0 Cel

TIN LEAD

DUAL

10.922 mm

15.24 mm

8

.032 MHz

43.053 mm

1

CMOS

1/100 SECOND

5 V

Timer or RTC

2.54 mm

R-XDIP-P32

Not Qualified

NO

e0

DS1486-120+

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

32

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

IN-LINE

DIP32,.6

Y

4.5 V

70 Cel

0 Cel

MATTE TIN

DUAL

10.922 mm

15.24 mm

8

43.053 mm

CMOS

1/100 SECOND

5 V

Timer or RTC

2.54 mm

R-XDIP-P32

Not Qualified

NO

e3

DS1743W-120+

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

70 Cel

0 Cel

MATTE TIN

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e3

DS1747W-120IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

32

QIP

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

10.922 mm

15.24 mm

8

.032 MHz

43.053 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-XDMA-P32

Not Qualified

NO

e0

DS1743W-150

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

70 Cel

0 Cel

TIN LEAD

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e0

DS1743-100IND+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

5 V

Timers or RTCs

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e3

DS1743W-120

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

70 Cel

0 Cel

TIN LEAD

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e0

DS1743-70

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

4.5 V

70 Cel

0 Cel

TIN LEAD

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e0

DS1743-100IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-XDMA-P28

Not Qualified

NO

e0

DS1743W-150+

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

70 Cel

0 Cel

MATTE TIN

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e3

DS1743W-120IND+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

85 Cel

-40 Cel

MATTE TIN

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timers or RTCs

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e3

DS1747-70

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

32

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP32,.6

N

4.5 V

70 Cel

0 Cel

TIN LEAD

DUAL

10.922 mm

15.24 mm

8

.032 MHz

43.053 mm

0

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-XDMA-P32

Not Qualified

NO

e0

DS1743W-120IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

85 Cel

-40 Cel

TIN LEAD

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-XDMA-P28

Not Qualified

NO

e0

DS1743-100+

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

4.5 V

70 Cel

0 Cel

MATTE TIN

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

5 V

Timers or RTCs

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e3

DS1747W-120

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

32

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP32,.6

N

2.97 V

70 Cel

0 Cel

TIN LEAD

DUAL

10.922 mm

15.24 mm

8

.032 MHz

43.053 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-XDMA-P32

Not Qualified

NO

e0

DS1743W-150IND

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

3.63 V

3.3

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

2.97 V

85 Cel

-40 Cel

TIN LEAD

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

2.54 mm

R-XDMA-P28

Not Qualified

NO

e0

DS1743-70+

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

4.5 V

70 Cel

0 Cel

MATTE TIN

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e3

DS1743-100

Maxim Integrated

TIMER, REAL TIME CLOCK

COMMERCIAL

PIN/PEG

28

QIP

RECTANGULAR

UNSPECIFIED

NO

PARALLEL, DIRECT ADDRESS

5.5 V

5

MICROELECTRONIC ASSEMBLY

DIP28,.6

N

4.5 V

70 Cel

0 Cel

TIN LEAD

DUAL

10.67 mm

15.24 mm

8

.032 MHz

38.225 mm

0

CMOS

SECONDS

5 V

Timer or RTC

2.54 mm

R-XDMA-P28

1

Not Qualified

NO

e0

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.