SSOP Timers & Real-Time Clocks 134

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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

M48T37Y-70MH6

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

44

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

5.5 V

8

5

SMALL OUTLINE, SHRINK PITCH

SOP44,.5,32

N

4.5 V

85 Cel

-40 Cel

DUAL

3.05 mm

8.56 mm

8

.032 MHz

NOT SPECIFIED

NOT SPECIFIED

18.1 mm

0

CMOS

SECONDS

5 V

Timer or RTC

.81 mm

R-PDSO-G44

Not Qualified

NO

M48T37Y-70MH6TR

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

44

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

5.5 V

8

5

SMALL OUTLINE, SHRINK PITCH

SOP44,.5,32

N

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

3.05 mm

8.56 mm

8

.032 MHz

18.1 mm

0

CMOS

SECONDS

5 V

Timer or RTC

.81 mm

R-PDSO-G44

Not Qualified

NO

e0

M48T37V-70MH1TR

STMicroelectronics

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

44

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

3.6 V

8

3.3

SMALL OUTLINE, SHRINK PITCH

SOP44,.5,32

N

3 V

70 Cel

0 Cel

DUAL

3.05 mm

8.56 mm

8

.032 MHz

NOT SPECIFIED

NOT SPECIFIED

18.1 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

.81 mm

R-PDSO-G44

Not Qualified

NO

e0

M48T212Y-70MH1E

STMicroelectronics

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

44

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

5.5 V

5

SMALL OUTLINE, SHRINK PITCH

SOP44,.5,32

Y

4.5 V

70 Cel

0 Cel

DUAL

3.05 mm

8.56 mm

8

.032 MHz

10

260

18.1 mm

CMOS

SECONDS

5 V

Timer or RTC

.81 mm

R-PDSO-G44

Not Qualified

NO

M41T256YMT7TR

STMicroelectronics

TIMER, REAL TIME CLOCK

OTHER

GULL WING

44

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

5

SMALL OUTLINE, SHRINK PITCH

SOP44,.5,32

N

4.5 V

70 Cel

-25 Cel

TIN LEAD

DUAL

3.05 mm

8.56 mm

.032 MHz

18.1 mm

0

CMOS

1/100 SECOND

5 V

Timer or RTC

.81 mm

R-PDSO-G44

Not Qualified

NO

e0

M48T37V-70MH6TR

STMicroelectronics

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

44

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, DIRECT ADDRESS

3.6 V

8

3.3

SMALL OUTLINE, SHRINK PITCH

SOP44,.5,32

N

3 V

85 Cel

-40 Cel

DUAL

3.05 mm

8.56 mm

8

.032 MHz

NOT SPECIFIED

NOT SPECIFIED

18.1 mm

0

CMOS

SECONDS

3.3 V

Timer or RTC

.81 mm

R-PDSO-G44

Not Qualified

NO

e0

STK17TC8-RF25I

Infineon Technologies

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

48

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, MUXED BUS

3.6 V

SMALL OUTLINE, SHRINK PITCH

2.7 V

85 Cel

-40 Cel

MATTE TIN

DUAL

2.79 mm

7.52 mm

8

.032 MHz

260

15.88 mm

1

CMOS

3 V

.635 mm

R-PDSO-G48

Not Qualified

e3

STK17TC8-RF25

Infineon Technologies

TIMER, REAL TIME CLOCK

COMMERCIAL

GULL WING

48

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

PARALLEL, MUXED BUS

3.6 V

SMALL OUTLINE, SHRINK PITCH

2.7 V

70 Cel

0 Cel

MATTE TIN

DUAL

2.79 mm

7.52 mm

8

.032 MHz

260

15.88 mm

1

CMOS

3 V

.635 mm

R-PDSO-G48

Not Qualified

e3

PT7C4910SQEX

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

PT7C4909RQEX

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

PT7C4910RQEX

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

PT7C4910SQE

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

PT7C4909SQEX

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

PT7C4909RQE

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

PT7C4909SQE

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3.3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

PT7C4910RQE

Diodes Incorporated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

DUAL

1.73 mm

3.905 mm

8.65 mm

1

CMOS

SECONDS

3 V

Timer or RTC

.65 mm

R-PDSO-G20

Not Qualified

NO

MAX6916EO33+T

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

8

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

30

260

8.65 mm

CMOS

SECONDS

3.3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

MAX6917EO30+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

MAX6917EO50-T

Maxim Integrated

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 2 WIRE/I2C

5

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

85 Cel

-40 Cel

Tin/Lead (Sn/Pb)

DUAL

CMOS

SECONDS

5 V

Timer or RTC

.635 mm

R-PDSO-G20

Not Qualified

NO

e0

MAX6917EO50

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

5

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

5 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e0

MAX6917EO33-T

Maxim Integrated

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 2 WIRE/I2C

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

85 Cel

-40 Cel

Tin/Lead (Sn/Pb)

DUAL

CMOS

SECONDS

3.3 V

Timer or RTC

.635 mm

R-PDSO-G20

Not Qualified

NO

e0

DS2404B+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

SMALL OUTLINE, SHRINK PITCH

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.99 mm

5.29 mm

1 HZ FIXED O/P; 64-BIT LASERED ROM; TIMEKEEPING CURRENT = 350NA

.032 MHz

30

260

6.2 mm

0

CMOS

5 V

.65 mm

R-PDSO-G16

1

Not Qualified

e3

MAX6917EO30

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e0

DS2404B+T&R

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

SMALL OUTLINE, SHRINK PITCH

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.99 mm

5.29 mm

1 HZ FIXED O/P; 64-BIT LASERED ROM; TIMEKEEPING CURRENT = 350NA

.032 MHz

30

260

6.2 mm

0

CMOS

5 V

.65 mm

R-PDSO-G16

1

Not Qualified

e3

MAX6917EO33+T

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3.3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

MAX6916EO30+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

8

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3 V

Timer or RTC

.635 mm

R-PDSO-G20

Not Qualified

NO

e3

MAX6916EO33+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

8

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3.3 V

Timer or RTC

.635 mm

R-PDSO-G20

Not Qualified

NO

e3

MAX6917EO50+T

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

5

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

5 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

DS2404B/T&R

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

SMALL OUTLINE, SHRINK PITCH

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.99 mm

5.29 mm

1 HZ FIXED O/P; 64-BIT LASERED ROM; TIMEKEEPING CURRENT = 350NA

.032 MHz

6.2 mm

0

CMOS

5 V

.65 mm

R-PDSO-G16

1

Not Qualified

e0

MAX6917EO33+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3.3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

MAX6917EO30+T

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

DS2404B

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

16

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 3-WIRE

5.5 V

SMALL OUTLINE, SHRINK PITCH

4.5 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.99 mm

5.29 mm

1 HZ FIXED O/P; 64-BIT LASERED ROM; TIMEKEEPING CURRENT = 350NA

.032 MHz

245

6.2 mm

0

CMOS

5 V

.65 mm

R-PDSO-G16

1

Not Qualified

e0

MAX6917EO50+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

5

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

5 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

MAX6917EO33

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.6 V

3.3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

3 V

85 Cel

-40 Cel

TIN LEAD

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3.3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e0

MAX6917EO30-T

Maxim Integrated

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

SERIAL, 2 WIRE/I2C

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

85 Cel

-40 Cel

Tin/Lead (Sn/Pb)

DUAL

CMOS

SECONDS

3 V

Timer or RTC

.635 mm

R-PDSO-G20

Not Qualified

NO

e0

MAX6916EO50+T

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

5

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

5 V

Timer or RTC

.635 mm

R-PDSO-G20

1

Not Qualified

NO

e3

MAX6916EO50+

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

5.5 V

8

5

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

4.5 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

5 V

Timer or RTC

.635 mm

R-PDSO-G20

Not Qualified

NO

e3

MAX6916EO30+T

Maxim Integrated

TIMER, REAL TIME CLOCK

INDUSTRIAL

GULL WING

20

SSOP

RECTANGULAR

PLASTIC/EPOXY

YES

I2C

3.3 V

8

3

SMALL OUTLINE, SHRINK PITCH

SSOP20,.25

Y

2.7 V

85 Cel

-40 Cel

MATTE TIN

DUAL

1.73 mm

3.9 mm

.032 MHz

8.65 mm

CMOS

SECONDS

3 V

Timer or RTC

.635 mm

R-PDSO-G20

1

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.