Overview
The PCF85063AT/AY, produced by NXP USA Inc., is a Tiny Real-Time Clock (RTC) and calendar optimized for low power consumption. This CMOS device integrates an on-chip 32.768 kHz oscillator and supports an I2C-bus interface with a maximum data rate of 400 kbit/s. It is designed to provide accurate timekeeping with features such as alarm functions, countdown timers, and programmable clock outputs. The device is suitable for various applications requiring precise time and date information.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 0.9 V to 5.5 V |
| Current Consumption | Typical 0.22 μA at VDD = 3.3 V and Tamb = 25 °C |
| I2C-bus Interface | 400 kHz, two-line bidirectional |
| Oscillator Frequency | 32.768 kHz |
| Programmable Clock Outputs | 32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz |
| Integrated Oscillator Load Capacitors | Selectable for CL = 7 pF or CL = 12.5 pF |
| Package Types | SO8, TSSOP8, HXSON10 |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
Key Features
- Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal.
- Low power consumption with typical current of 0.22 μA at VDD = 3.3 V and Tamb = 25 °C.
- 400 kHz two-line I2C-bus interface.
- Programmable clock output for peripheral devices.
- Selectable integrated oscillator load capacitors.
- Alarm function, countdown timer, and minute/half minute interrupt.
- Oscillator stop detection function.
- Internal Power-On Reset.
- Programmable offset register for frequency adjustment.
Applications
- Digital still cameras.
- Digital video cameras.
- Printers.
- Copy machines.
- Mobile equipment.
- Battery-powered devices.
Q & A
- What is the PCF85063AT/AY? The PCF85063AT/AY is a Tiny Real-Time Clock (RTC) and calendar chip optimized for low power consumption, produced by NXP USA Inc.
- What is the operating voltage range of the PCF85063AT/AY? The operating voltage range is from 0.9 V to 5.5 V.
- What is the typical current consumption of the PCF85063AT/AY? The typical current consumption is 0.22 μA at VDD = 3.3 V and Tamb = 25 °C.
- What interface does the PCF85063AT/AY use? The PCF85063AT/AY uses a 400 kHz two-line I2C-bus interface.
- What are the programmable clock output frequencies of the PCF85063AT/AY? The programmable clock output frequencies include 32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz.
- Does the PCF85063AT/AY have an alarm function? Yes, the PCF85063AT/AY includes an alarm function, a countdown timer, and minute/half minute interrupt.
- What are the package types available for the PCF85063AT/AY? The available package types are SO8, TSSOP8, and HXSON10.
- What applications is the PCF85063AT/AY suitable for? It is suitable for digital still cameras, digital video cameras, printers, copy machines, mobile equipment, and battery-powered devices.
- Does the PCF85063AT/AY have an internal Power-On Reset? Yes, it includes an internal Power-On Reset.
