PCF8523U Product Information|NXP

Buy Options

PCF8523U/12AA/1,00

No Longer Manufactured

12NC: 935293887005

Details

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Operating Features

ParameterValue
Supply Voltage [Min to Max] (V)
1.2 to 5.5, 1.6 to 5.5
Communication protocol
I²C
Battery Back Up
Yes
Watchdog timer
Y
Programmable alarm
Y
ParameterValue
Countdown Timer
Y
Integrated Temperature Compensation
N
AEC-Q100 compliant
N
Operating Temperature (Min-Max) (℃)
-40 to 85

Environmental

Part/12NCPbFreeEU RoHSHalogen FreeRHF IndicatorREACH SVHCWeight (mg)
PCF8523U/12AA/1,00(935293887005)
Yes
Yes
Yes
DREACH SVHC
1.58

Quality

Part/12NCSafe Assure Functional SafetyFITMTBF
PCF8523U/12AA/1,00
(935293887005)
No
5
2.0E8

Shipping

Part/12NCHarmonized Tariff (US)Disclaimer
PCF8523U/12AA/1,00
(935293887005)
854239

Discontinued and Replacement Part Data

Part/12NCDiscontinuance NoticeLast Time Buy DateLast Time Delivery DateReplacement
PCF8523U/12AA/1,00
(935293887005)
NOTICE
2023-02-25
2023-05-26
-

Product Change Notice

Part/12NCIssue DateEffective DatePCNTitle
PCF8523U/12AA/1,00
(935293887005)
2022-05-262022-05-27202205030DNNXP R01 and RN3 2022 2Q Misc Discontinuation Notice

More about PCF8523

The PCF8523 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. Data is transferred serially via the I²C-bus with a maximum data rate of 1000 kbit/s. Alarm and timer functions are available with the possibility to generate a wake-up signal on an interrupt pin. An offset register allows fine-tuning of the clock. The PCF8523 has a backup battery switch-over circuit, which detects power failures and automatically switches to the battery supply when a power failure occurs.