Overview
The PCF8523TS/1,118 is a Real-Time Clock (RTC) and calendar IC manufactured by NXP USA Inc. This CMOS device is optimized for low power consumption and is designed to provide accurate timekeeping and calendar functions. It communicates via a 2-line bidirectional I2C interface with a maximum data rate of 1000 kbit/s. The PCF8523TS/1,118 features alarm and timer functions, a backup battery switch-over circuit, and an offset register for fine-tuning the clock frequency.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCF8523TS/1,118 |
| Package | 8-SOIC (0.154, 3.90mm Width) |
| Interface | I2C, 2-Wire Serial |
| Supply Voltage | 1.0 V to 5.5 V |
| Number of Terminations | 8 |
| Terminal Pitch | 1.27 mm |
| Height Seated (Max) | 1.75 mm |
| Width | 3.9 mm |
| RoHS Status | ROHS3 Compliant |
| 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.
- 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.
- Oscillator stop detection function.
- 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.
- Any system requiring accurate and reliable timekeeping with low power consumption.
Q & A
- What is the PCF8523TS/1,118?
The PCF8523TS/1,118 is a Real-Time Clock (RTC) and calendar IC manufactured by NXP USA Inc., optimized for low power consumption.
- What interface does the PCF8523TS/1,118 use?
The PCF8523TS/1,118 uses a 2-line bidirectional I2C interface with a maximum data rate of 1000 kbit/s.
- What is the supply voltage range for the PCF8523TS/1,118?
The supply voltage range is from 1.0 V to 5.5 V.
- Does the PCF8523TS/1,118 have a backup battery feature?
- What are the key features of the PCF8523TS/1,118?
Key features include low backup current, programmable timer and alarm, oscillator stop detection, and a programmable offset register for frequency adjustment.
- What are the typical applications of the PCF8523TS/1,118?
Typical applications include time keeping, battery powered devices, and metering applications.
- Is the PCF8523TS/1,118 RoHS compliant?
- What is the package type of the PCF8523TS/1,118?
The package type is 8-SOIC (0.154, 3.90mm Width).
- What is the terminal pitch of the PCF8523TS/1,118?
The terminal pitch is 1.27 mm.
- Does the PCF8523TS/1,118 have an internal Power-On Reset (POR)?
