NXP Semiconductors PCF85063 CMOS Real-Time Clock (RTC) & Calendar
NXP Semiconductors PCF85063 CMOS Real-Time Clock (RTC) and Calendar offers precise timing in a small, low-power format and is well suited for a wide range of applications. The PCF85063 can be used to perform the standard functions of a real-time clock (RTC), tracking the actual time and date or acting as a reference timer. To support power management, the PCF85063 can be used to wake the microcontroller from hibernation mode, and in systems that use a PLL, it can serve as a system reference clock for the PLL input. The PCF85063 can also be used as a Watchdog or countdown timer, or as an activation timer to start measurements or initiate other functions.The PCF85063 is offered in several variants, offering serial, SPI, and I2C interface options. The device is offered in SO8, TSSOP8, TSSOP10, HWSON8, and DFN2626-10 package options for design flexibility.
Features
- Time and date from seconds to years
- Electronic frequency tuning via command
- Supports interrupts every 30 or 60 seconds
- General-purpose RAM byte
- Clock out from 1Hz to 768kHz
- Oscillator option for low-power quartz (CL = 7pF)
- Large voltage operating range (VDD= 9.0V to 5.5V)
- Ideal for battery-powered operation (IDD = ~0.2µA)
- -40°C to +85°C operating temperature range
- Package options
- SO8
- TSSOP8
- TSSOP10
- HWSON8
- DFN2626-10
Applications
- Inkjet and laser printers
- Self-care medical devices
- Digital still and video cameras
- Handheld and mobile devices
- Gaming, toys
- Industrial equipment
- Home automation
- Alarm systems
- Eco-friendly heating control
- Printers, copiers
Device Options
Block Diagram
Typical Application Circuit
View Results ( 5 ) Page
| Part Number | Datasheet | RTC Bus Interface | Battery Backup Switching | Package/Case |
|---|---|---|---|---|
| PCF85063AT/AY | ![]() |
I2C | No Backup Switching | SOIC-8 |
| PCF85063ATL/1,118 | ![]() |
I2C | No Backup Switching | DFN2626-10 |
| PCF85063ATT/AJ | ![]() |
I2C | No Backup Switching | TSSOP-8 |
| PCF85363ATT/AJ | ![]() |
I2C | Backup Switching | TSSOP-8 |
| PCF85063BTL/1,118 | ![]() |
SPI | No Backup Switching | DFN2626-10 |
Published: 2013-08-14
| Updated: 2025-07-17

