Overview
The PCF8523TK/1,118 is a Real-Time Clock (RTC) and calendar IC produced by NXP USA Inc. This component is optimized for low power consumption and is part of the PCF8523 series. It features a CMOS design and operates using a 32.768 kHz quartz crystal. The PCF8523TK/1,118 is available in an HVSON-8 package and is suitable for a variety of applications requiring precise timekeeping and low power usage.
Key Specifications
| Attribute | Specification |
|---|---|
| Time Format | HH:MM:SS |
| Interface | I2C (2 line bidirectional 1 MHz Fast-mode Plus) |
| Supply Voltage-Nom | 1.0 V to 5.5 V |
| Temperature Grade | Industrial |
| Operating Temp Range | -40°C to +85°C |
| Storage Temperature Range | -65°C to +150°C |
| Moisture Sensitivity Level | 1 |
| Package Style | HVSON-8 |
| Mounting Method | Surface Mount |
| Backup Current | Typical 150 nA at VDD = 3.0 V and Tamb = 25 °C |
Key Features
- Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal.
- Resolution: seconds to years.
- Clock operating voltage: 1.0 V to 5.5 V.
- Low backup current: typical 150 nA at VDD = 3.0 V and Tamb = 25 °C.
- 2 line bidirectional 1 MHz Fast-mode Plus (Fm+) I2C interface.
- Battery backup input pin and switch-over circuit.
- Freely programmable timer and alarm with interrupt capability.
- Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF.
- Internal Power-On Reset (POR).
- Open-drain interrupt or clock output pins.
- Programmable offset register for frequency adjustment.
Applications
- Time keeping applications.
- Battery powered devices.
- Metering applications.
Q & A
- What is the operating voltage range of the PCF8523TK/1,118?
The operating voltage range is from 1.0 V to 5.5 V.
- What type of interface does the PCF8523TK/1,118 use?
The PCF8523TK/1,118 uses a 2 line bidirectional 1 MHz Fast-mode Plus (Fm+) I2C interface.
- What is the typical backup current of the PCF8523TK/1,118?
The typical backup current is 150 nA at VDD = 3.0 V and Tamb = 25 °C.
- Does the PCF8523TK/1,118 have a battery backup feature?
- Can the PCF8523TK/1,118 generate interrupts?
- What is the package style of the PCF8523TK/1,118?
The package style is HVSON-8.
- What is the operating temperature range of the PCF8523TK/1,118?
The operating temperature range is from -40°C to +85°C.
- Does the PCF8523TK/1,118 have a programmable offset register?
- What are the common applications of the PCF8523TK/1,118?
- Does the PCF8523TK/1,118 have internal power-on reset (POR) functionality?
