Overview
The PCF8570T/F5,518 is a serial real-time clock (RTC) and memory device manufactured by NXP USA Inc. This component is designed to provide accurate timekeeping and calendar functions, along with additional memory capabilities. It features an I2C-bus interface for communication with microcontrollers and is suitable for various applications requiring precise timing and data storage.
The device includes a built-in 4K bytes electrically erasable programmable read-only memory (EEPROM) and a power sense circuit, which monitors the power supply and generates an interrupt signal when the device is powered off or on. It operates at low power consumption, making it ideal for battery-powered devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part # | PCF8570T/F5,518 | |
| Package/Case | 8-SOIC (0.295", 7.50mm Width) | |
| Voltage - Supply | 2.5V ~ 6V | V |
| Technology | SRAM | |
| Operating Temperature | -40°C ~ 85°C (TA) | °C |
| Mounting Type | Surface Mount | |
| Memory Type | Volatile | |
| Memory Size | 2Kbit | |
| Memory Organization | 256 x 8 | |
| Memory Interface | I²C | |
| Clock Frequency | 100 kHz | Hz |
Key Features
- Serial Real-Time Clock (RTC): Provides accurate timekeeping and calendar functions.
- I2C-bus Interface: Enables communication with microcontrollers using the I2C protocol.
- Built-in EEPROM: Offers 4K bytes of electrically erasable programmable read-only memory for storing data.
- Power Sense Circuit: Monitors power supply and generates an interrupt signal when the device is powered off or on.
- Low Power Consumption: Operates at low power consumption, making it suitable for battery-powered devices.
Applications
The PCF8570T/F5,518 is designed for various applications that require accurate timekeeping and calendar functions, including:
- Industrial Control Systems: Suitable for use in industrial control systems that require precise timing and calendar functions.
- Automotive Electronics: Designed for use in automotive electronics, such as infotainment systems and vehicle management systems.
- Consumer Appliances: Can be used in consumer appliances, such as smart home devices and wearables.
Q & A
- What is the primary function of the PCF8570T/F5,518?
The primary function is to provide accurate timekeeping and calendar functions along with additional memory capabilities.
- What type of interface does the PCF8570T/F5,518 use for communication?
The device uses an I2C-bus interface for communication with microcontrollers.
- What is the memory capacity of the PCF8570T/F5,518?
The device has a 2K-bit SRAM memory organized as 256 x 8 bits.
- What is the operating voltage range of the PCF8570T/F5,518?
The operating voltage range is from 2.5V to 6V.
- What is the operating temperature range of the PCF8570T/F5,518?
The operating temperature range is from -40°C to 85°C.
- Is the PCF8570T/F5,518 RoHS compliant?
- What type of package does the PCF8570T/F5,518 come in?
The device comes in an 8-SOIC (Small Outline Integrated Circuit) package.
- Is the PCF8570T/F5,518 still in production?
No, the PCF8570T/F5,518 is no longer manufactured.
- What are some equivalent parts to the PCF8570T/F5,518?
Equivalent parts include the DS1307 from Maxim Integrated and the M41T62 from STMicroelectronics.
- What is the clock frequency of the I2C interface on the PCF8570T/F5,518?
The clock frequency of the I2C interface is 100 kHz.
