Features
According to the product information, the features of PCF8574TS/3 are:
- 8-bit I/O expander for I2C-bus with interrupt
- Open-drain interrupt output
- Cascading possibility
- Multi-master capability
- High noise immunity
- Operates from 2.5 to 6 V
- Consumes low power
These features make it suitable for various applications, including automotive and industrial automation, and enable its use as a bidirectional I/O expander or high current-drive load application.
Package
The package type of PCF8574TS/3 is SSOP20 (Shrink Small Outline Package, 20 pins).
Pinout
The PCF8574TS/3 has a pin count of 20 pins in an SSOP20 package.
The functions of each pin are:
- VCC: Power supply (2.5V to 6V)
- GND: Ground
- SDA: I2C data line
- SCL: I2C clock line
- INT: Interrupt output (open-drain)
- OE: Output enable (active low)
- A0-A2: Address inputs (for multi-master capability)
The remaining pins are dedicated to the 8-bit bidirectional I/O lines.
Manufacturer
The manufacturer of the PCF8574TS/3 is NXP Semiconductors, a leading global semiconductor company that specializes in designing and manufacturing semiconductors for various industries such as automotive, industrial, and consumer electronics.
Applications
The PCF8574TS/3 is suitable for various applications, including bidirectional I/O expander applications and high current-drive load applications. It can be used in automotive and industrial automation systems, as well as other areas where a low-power, multi-master capable I2C-bus interface is required.
Specifications
| Product Category |
Real Time Clock |
Product Type |
Real Time Clocks |
| Subcategory |
Clock & Timer ICs |
PCF8574TS/3 FAQs
1.Q: What are related parts to the PCF8574TS/3?
A: Similar parts include PCF8574T (DIP16), PCF8574AT (alternate I2C address), and PCA9554 (enhanced I/O expander).
2.Q: Does the PCF8574TS/3 comply with industry certifications?
A: Yes, it is RoHS compliant, Pb-free, and follows industrial-grade ECCN (EAR99) and HTS (8542.39.00.01) standards.
3.Q: What package does the PCF8574TS/3 use?
A: It comes in an SSOP-20 package (LSSOP, 4.4mm body width, 0.65mm pitch), compliant with MO-152 standard.
4.Q: What is the recommended operating condition for PCF8574TS/3’s supply voltage?
A: Recommended VDD is 2.5V to 6V with a nominal 3.3V or 5V supply, ensuring I2C-bus compatibility.
5.Q: What are the absolute maximum ratings for the PCF8574TS/3?
A: VDD max: 6V; input voltage range: -0.5V to VDD+0.5V; max junction temp: 150°C. Exceeding these may damage the device.
6.Q: In which applications is the PCF8574TS/3 commonly used?
A: It’s used in LCD/LED displays, keypad interfaces, sensor hubs, and general-purpose I/O expansion in industrial/consumer systems.
7.Q: What are the key features of the PCF8574TS/3?
A: Key features include 8-bit parallel I/O port, I2C-bus interface (up to 400 kHz), industrial temperature range (-40°C to +85°C), and interrupt output for remote monitoring.
8.Q: What is the pinout configuration of the PCF8574TS/3 I/O expander?
A: The PCF8574TS/3 has 20 pins in SSOP package. Key pins include SDA (serial data), SCL (serial clock), A0-A2 (address inputs), P0-P7 (8-bit I/O ports), and VDD/GND for power.
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