PCF2123TS/1,112 NXP Semiconductors, PCF2123TS/1,112 Datasheet

PCF2123TS/1,112

Manufacturer Part Number

PCF2123TS/1,112

Description

IC SPI RTC/CALENDAR 14-TSSOP

Manufacturer

NXP Semiconductors

Type

Clock/Calendar/Alarmr

Datasheets

1.PCF2123TS1118.pdf (61 pages)

2.PCF2123TS1112.pdf (2 pages)

Specifications of PCF2123TS/1,112

Package / Case

14-TSSOP

Time Format

HH:MM:SS (12/24 hr)

Date Format

YY-MM-DD-dd

Interface

SPI, 3-Wire Serial

Voltage - Supply

1.1 V ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Function

Clock, Calendar

Supply Voltage (max)

5.5 V

Supply Voltage (min)

1.1 V

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Mounting Style

SMD/SMT

Rtc Bus Interface

Serial

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Memory Size

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

Other names

935286384112
PCF2123TS/1
PCF2123TS/1

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NXP Real-time clock sets new record

in power efficiency

This compact, highly efficient real-time clock (RTC) cuts power demand in half. It fits nearly

anywhere, can be powered by a very small battery cell or a small super-cap, and performs vital

functions like time keeping, process control, and other time-critical tasks.

Key features

} 32.768-kHz quartz crystal

} Low backup current: typical 0.10 μA at V

} Resolution: seconds to years

} Clock operating voltage: 1.1 to 5.5 V

} 3-line SPI with separate, combinable data I/O

} Serial interface (at V

} Interrupt output: 1 second or 1 minute

} Freely programmable timer with interrupt

} Freely programmable alarm function with interrupt

} Integrated oscillator load capacitors for CL = 7 pF

} Programmable offset register for frequency adjustment

Key applications

} Very accurate time references

} Timing

} Time measurements

} Clock/calendar

} Industrial control

} Power management unit (PMU)

} Metering

} Time reference

} Watchdog timer

Tamb = 25 °C

= 1.6 to 5.5 V)

= 2.0 V and

NXP ultra-low-power RTC

with electronic frequency

tuning PCF2123

The NXP PCF2123 is an industry-leading CMOS RTC and

calendar optimized for low power consumption. It operates at

a current of less than 100 nanoAmperes (0.10 µA) with a 1.5-V

power supply and consumes less than 0.15 µW of power.

Housed in a tiny (3 x 3 x 1 mm) package, it is well suited to a

range of handheld and battery-operated applications, including

blood-pressure monitors and other home-use medical devices,

pocket calculators, portable phones, and PDAs. It is also an

ideal component for white goods, metering units, and other

industrial systems.

The highly accurate Watchdog function can be used to wake

the microcontroller from hibernation mode or for independent

monitoring of microcontroller tasks. The calendar functions track

year, month, date, and day with built-in Leap Year flags. There

is a freely programmable alarm and timer function, so designers

have the option to generate a wake-up signal on an interrupt pin.

Related parts for PCF2123TS/1,112

PCF2123TS/1,112 Summary of contents

Page 1

NXP Real-time clock sets new record in power efficiency This compact, highly efficient real-time clock (RTC) cuts power demand in half. It fits nearly anywhere, can be powered by a very small battery cell or a small super-cap, and performs ...

Page 2

Block diagram PCF2123 OSCI OSCILLATOR DIVIDER 32.768 kHz OSCO MONITOR OFFSET FUNCTION 0D OFFSET TIMER FUNCTION TEST 0E TIMER/CLKOUT CONTROL COUNTDOWN TIMER V SS CONTROL 00 CONTROL/STATUS 1 01 CONTROL/STATUS 2 POWER ON RESET TIME 02 OS/SECONDS ...

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