Overview
The PCF85263ATT1/AZ is a CMOS Real-Time Clock (RTC) and calendar chip designed by NXP Semiconductors. This component is optimized for low power consumption and features automatic switching to battery backup in case of main power loss. It is part of the PCF85263A family, which includes various package options such as TSSOP10, TSSOP8, SO8, and DFN2626-10. The PCF85263ATT1/AZ specifically comes in a TSSOP10 package, making it suitable for applications where space is a concern.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | TSSOP10 |
| Number of Leads | 10 |
| Body Width | 3 mm |
| Oscillator Frequency | 32.768 kHz |
| I2C-Bus Data Rate | Up to 400 kbit/s |
| Supply Voltage | 1.8 V to 5.5 V |
| Battery Backup Voltage | 1.3 V to 5.5 V |
| Operating Temperature | -40°C to +85°C |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC compliant |
Key Features
- Automatic switching to battery backup on main power loss
- Alarm function with two independent alarms
- Time stamp input and clock output
- Stop-watch mode for elapsed time counting (from 100th seconds to 999,999 hours)
- I2C-bus interface with auto-incrementing address register
- Integrated 32.768 kHz oscillator with capacitors and frequency divider
- Two independent interrupt signals (INTA and INTB)
- Leap year compensation and year, month, day, weekday, hours, minutes, seconds, and 100th seconds tracking
Applications
- Network powered devices
- Battery-backed up systems
- Data loggers
- Digital voice recorders
- Mobile equipment
- Accurate high-duration timers
Q & A
- What is the primary function of the PCF85263ATT1/AZ? The primary function is to serve as a Real-Time Clock (RTC) and calendar with low power consumption and automatic battery backup.
- What package type does the PCF85263ATT1/AZ come in? It comes in a TSSOP10 package.
- What is the oscillator frequency of the PCF85263ATT1/AZ? The oscillator frequency is 32.768 kHz.
- Does the PCF85263ATT1/AZ support I2C-bus communication? Yes, it supports I2C-bus with a maximum data rate of up to 400 kbit/s.
- What are the key environmental compliance standards for the PCF85263ATT1/AZ? It is PbFree, EU RoHS, Halogen Free, and REACH SVHC compliant.
- What is the operating temperature range for the PCF85263ATT1/AZ? The operating temperature range is -40°C to +85°C.
- Does the PCF85263ATT1/AZ have alarm functions? Yes, it has two independent alarm functions.
- Can the PCF85263ATT1/AZ be used as a stop-watch? Yes, it can be configured as a stop-watch for elapsed time counting.
- What types of devices can the PCF85263ATT1/AZ be used in? It can be used in network powered devices, battery-backed up systems, data loggers, digital voice recorders, and mobile equipment.
- Is the PCF85263ATT1/AZ suitable for high-duration timing applications? Yes, it is suitable for accurate high-duration timers.
