Automotive Tiny Real-Time Clock/Calendar with alarm function and I²C-Bus | NXP Semiconductors

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Automotive Tiny Real-Time Clock/Calendar with Alarm Function and I²C-Bus

PCA85073A Active

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The PCA85073A is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. An offset register allows fine-tuning of the clock. All addresses and data are transferred serially via the two-line bidirectional I²C-bus. Maximum data rate is 400 kbit/s. The register address is incremented automatically after each written or read data byte.

Block Diagram

PCA85073A

PCA85073A Block diagram
Get diagram PDF

Features

Key Features

  • AEC-Q100 grade 2 compliant for automotive applications
  • Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
  • Low current; typical 0.25 µA at VDD = 3.0 V and Tamb = 25 °C
  • Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)
  • Alarm function
  • Minute and half minute interrupt
  • Internal Power-On Reset (POR)
  • High temperature operation range: —40 °C to +105 °C
  • Clock operating voltage: 0.9 V to 5.5 V
  • 400 kHz two-line I²C-bus interface (at VDD = 1.8 V to 5.5 V)
  • Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
  • Countdown timer
  • Oscillator stop detection function
  • Programmable offset register for frequency adjustment
  • Latch-up performance exceeds 100 mA per JESD 78, Class II
  • ESD protection exceeds JESD 22
    • 4000 V Human-Body Model (A114-A)
    • 1000 V Charged-Device Model (C101)
  • Package offered: TSSOP8

Buy/Parametrics

1 result

Include 0 NRND

Part

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CAD Model

Status

RTC Type

Accuracy (Typ) (+/- ppm)

Supply Voltage [Min to Max] (V)

Low Supply Current (μA)

Communication protocol

Capacitive Load (μF)

Battery Back Up

Watchdog timer

Programmable alarm

Countdown Timer

Tamper Input

Interrupt Output

Integrated Temperature Compensation

AEC-Q100 compliant

Package Type

Package Dimensions (LxWxZ (mm))

Operating Temperature (Min-Max) (℃)

Budgetary Price excluding tax

PCA85073ADP
Data Sheet

Active

IC

20 to 50 at 25°C

1.8 to 5.5

0.25

I²C

7, 12.5

No

Y

Y

Y

0

1

Y

Y

TSSOP8

3 x 3 x 1.1

-40 to 105

1K @ US$0.49
N true 0 PSPPCA85073Aen 3 Brochure Brochure t518 1 Data Sheet Data Sheet t520 1 Selector Guide Selector Guide t528 1 en_US en_US en Data Sheet Data Sheet 1 1 PCA85073ADP 1 English The PCA85073A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. An offset register allows fine-tuning of the clock. 1570463575703717357267 PSP 675.3 KB None None documents None 1570463575703717357267 /docs/en/data-sheet/PCA85073A.pdf 675313 /docs/en/data-sheet/PCA85073A.pdf PCA85073A documents N N 2019-10-07 Automotive tiny Real-Time Clock/calendar with alarm function and I<sup>2</sup>C-bus /docs/en/data-sheet/PCA85073A.pdf /docs/en/data-sheet/PCA85073A.pdf Data Sheet N 980000996212993340 2023-08-17 pdf N en Oct 4, 2019 980000996212993340 Data Sheet Y N Automotive tiny Real-Time Clock/calendar with alarm function and I<sup>2</sup>C-bus Brochure Brochure 1 2 2 English NXP provides broad portfolio of lower power and high temperature Real Time Clocks for automotive applications 1442049170618710543515 PSP 354.3 KB None None documents None 1442049170618710543515 /docs/en/brochure/75017665.pdf 354250 /docs/en/brochure/75017665.pdf 75017665 documents N N 2015-07-21 Real-time clocks for automotive applications /docs/en/brochure/75017665.pdf /docs/en/brochure/75017665.pdf Brochure N 712453003803778552 2022-12-07 pdf N en Aug 21, 2019 712453003803778552 Brochure Y N Real-time clocks for automotive applications Selector Guide Selector Guide 1 3 0 Japanese リアルタイム・クロックセレクターガイド。高精度な計時、長い電池寿命、過酷な環境でのアプリケーションに、NXPの豊富なRTCのポートフォリオからお選びください。 1579625550018748134969ja PSP 1.1 MB None None documents None 1579625550018748134969 /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf 1111554 /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf RTCSelectorGuideA4 documents N N 2020-01-21 Real Time Clocks Selector Guide Brochure /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf /docs/ja/product-selector-guide/RTCSelectorGuideA4.pdf Selector Guide N 553557935274807777 2024-04-12 ja Apr 5, 2023 553557935274807777 Selector Guide Y N リアルタイム・ クロック 5 English Real Time Clocks Selector Guide. For highly accurate time-keeping, long battery life, and rugged environment applications, choose from NXP's extensive portfolio of RTCs. 1579625550018748134969 PSP 1.1 MB None None documents None 1579625550018748134969 /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf 1111554 /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf RTCSelectorGuideA4 documents N N 2020-01-21 Real Time Clocks Selector Guide Brochure /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf Selector Guide N 553557935274807777 2024-04-12 pdf N en Apr 17, 2023 553557935274807777 Selector Guide Y N Real Time Clocks Selector Guide Brochure false 0 PCA85073A downloads en true 1 Y PSP Y Y Brochure 1 /docs/en/brochure/75017665.pdf 2015-07-21 1442049170618710543515 PSP 2 Aug 21, 2019 Brochure NXP provides broad portfolio of lower power and high temperature Real Time Clocks for automotive applications None /docs/en/brochure/75017665.pdf English documents 354250 None 712453003803778552 2022-12-07 N /docs/en/brochure/75017665.pdf Real-time clocks for automotive applications /docs/en/brochure/75017665.pdf documents 712453003803778552 Brochure N en None Y pdf 2 N N Real-time clocks for automotive applications 354.3 KB 75017665 N 1442049170618710543515 Data Sheet 1 /docs/en/data-sheet/PCA85073A.pdf 2019-10-07 1570463575703717357267 PSP 1 Oct 4, 2019 Data Sheet The PCA85073A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. An offset register allows fine-tuning of the clock. None /docs/en/data-sheet/PCA85073A.pdf English documents 675313 None 980000996212993340 2023-08-17 N /docs/en/data-sheet/PCA85073A.pdf Automotive tiny Real-Time Clock/calendar with alarm function and I<sup>2</sup>C-bus /docs/en/data-sheet/PCA85073A.pdf documents 980000996212993340 Data Sheet N en None Y pdf 1 N N Automotive tiny Real-Time Clock/calendar with alarm function and I<sup>2</sup>C-bus PCA85073ADP 675.3 KB PCA85073A N 1570463575703717357267 Selector Guide 1 /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf 2020-01-21 1579625550018748134969 PSP 3 Apr 17, 2023 Selector Guide Real Time Clocks Selector Guide. For highly accurate time-keeping, long battery life, and rugged environment applications, choose from NXP's extensive portfolio of RTCs. None /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf English documents 1111554 None 553557935274807777 2024-04-12 N /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf Real Time Clocks Selector Guide Brochure /docs/en/product-selector-guide/RTCSelectorGuideA4.pdf documents 553557935274807777 Selector Guide N en None Y pdf 5 N N Real Time Clocks Selector Guide Brochure 1.1 MB RTCSelectorGuideA4 N 1579625550018748134969 true Y Products

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