Overview
The PCA9670PW,112 is a remote 8-bit I/O expander produced by NXP USA Inc. This component is designed to provide general-purpose remote I/O expansion via the two-wire bidirectional I²C-bus interface. It is part of the PCA9670 family, which offers a versatile solution for expanding the I/O capabilities of microcontrollers and other I²C-bus compatible devices.
Key Specifications
| Specification | Value |
|---|---|
| Interface | I²C-bus |
| Supply Voltage | 3 V |
| Technology | CMOS |
| Number of Terminations | 16 |
| Package Type | 16-TSSOP (0.173, 4.40mm Width) |
| Operating Temperature | -40°C ~ 85°C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Bits | 8 |
| Pin Count | 16 |
| Current - Output Source/Sink | 100μA / 25mA |
Key Features
- Eight quasi-bidirectional ports for flexible I/O expansion.
- 1 MHz I²C-bus interface for high-speed communication.
- Three hardware address inputs allowing up to eight devices on the same bus.
- Reset input for easy initialization.
- Low power consumption and CMOS technology for efficient operation.
Applications
The PCA9670PW,112 is suitable for a variety of applications where I/O expansion is necessary. These include:
- Industrial control systems requiring additional I/O ports.
- Automotive systems where space and power efficiency are critical.
- Consumer electronics needing flexible and reliable I/O expansion.
- Medical devices requiring precise and low-power I/O control.
Q & A
- What is the primary function of the PCA9670PW,112?
The PCA9670PW,112 is a remote 8-bit I/O expander designed to provide general-purpose remote I/O expansion via the I²C-bus interface. - What is the operating temperature range of the PCA9670PW,112?
The operating temperature range is -40°C to 85°C. - What is the package type of the PCA9670PW,112?
The package type is 16-TSSOP with a width of 0.173 inches (4.40 mm). - How many quasi-bidirectional ports does the PCA9670PW,112 have?
The PCA9670PW,112 has eight quasi-bidirectional ports. - What is the maximum I²C-bus frequency supported by the PCA9670PW,112?
The maximum I²C-bus frequency is 1 MHz. - Can multiple PCA9670PW,112 devices be connected on the same I²C-bus?
Yes, up to eight devices can be connected on the same bus using the three hardware address inputs. - What is the supply voltage for the PCA9670PW,112?
The supply voltage is 3 V. - What is the current sourcing and sinking capability of the PCA9670PW,112?
The device can source up to 100μA and sink up to 25mA. - Is the PCA9670PW,112 still in production?
No, the PCA9670PW,112 is listed as obsolete and no longer manufactured. - What technology is used in the PCA9670PW,112?
The PCA9670PW,112 uses CMOS technology.
