Overview
The PCF8583T/5,512, produced by NXP USA Inc., is a highly integrated clock and calendar chip designed for a wide range of applications requiring precise timekeeping and additional memory. This device is based on a 2048-bit static CMOS RAM, organized as 256 words by 8 bits. It features an on-chip 32.768 kHz oscillator circuit, a frequency divider, and a serial two-line bidirectional I2C-bus interface. The PCF8583T/5,512 is available in an 8-pin SOIC package, making it suitable for space-constrained designs while offering robust functionality.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | 8-pin SOIC (SO8) |
| Memory Size | 240 x 8-bit RAM (2048 bits total) |
| Supply Voltage | 2.5 V to 6 V (I2C-bus), 1.0 V to 6.0 V (clock operation) |
| Operating Temperature | -40°C to +85°C |
| Interface | Serial two-line bidirectional I2C-bus |
| Oscillator Frequency | 32.768 kHz |
| Power Consumption | Max 50 μA at fSCL = 0 Hz |
| Alarm and Timer Functions | Programmable alarm registers and timer functions |
| Interrupt Output | Open-drain interrupt output (active LOW) |
Key Features
- I2C-bus interface for serial communication
- On-chip 32.768 kHz oscillator circuit for precise timekeeping
- 240 x 8-bit low-voltage RAM for data storage
- Programmable alarm registers and timer functions
- Open-drain interrupt output (active LOW)
- Power-On Reset (POR) circuit for reliable startup
- Operating supply voltage range from 2.5 V to 6 V
- Low power consumption with a maximum of 50 μA at fSCL = 0 Hz
Applications
- Consumer electronics requiring precise timekeeping, such as clocks, watches, and appliances
- Industrial control systems and automation
- Medical devices and healthcare equipment
- Automotive systems, including navigation and infotainment
- Smart home devices and IoT applications
Q & A
- What is the primary function of the PCF8583T/5,512?
The primary function of the PCF8583T/5,512 is to provide a clock and calendar with additional RAM for data storage, using an I2C-bus interface for serial communication.
- What is the memory size of the PCF8583T/5,512?
The PCF8583T/5,512 has 240 x 8-bit RAM, totaling 2048 bits.
- What is the operating supply voltage range for the PCF8583T/5,512?
The operating supply voltage range is from 2.5 V to 6 V for the I2C-bus interface and from 1.0 V to 6.0 V for clock operation.
- What is the oscillator frequency of the PCF8583T/5,512?
The oscillator frequency is 32.768 kHz.
- Does the PCF8583T/5,512 have alarm and timer functions?
Yes, the PCF8583T/5,512 has programmable alarm registers and timer functions.
- What is the maximum power consumption of the PCF8583T/5,512?
The maximum power consumption is 50 μA at fSCL = 0 Hz.
- What type of interface does the PCF8583T/5,512 use?
The PCF8583T/5,512 uses a serial two-line bidirectional I2C-bus interface.
- What is the operating temperature range for the PCF8583T/5,512?
The operating temperature range is from -40°C to +85°C.
- Does the PCF8583T/5,512 have an interrupt output?
Yes, the PCF8583T/5,512 has an open-drain interrupt output (active LOW).
- What package type is the PCF8583T/5,512 available in?
The PCF8583T/5,512 is available in an 8-pin SOIC package.
