Overview
The PCA9535BS1,118, produced by NXP USA Inc., is a 24-pin CMOS device designed to provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications. This device is part of the PCA9535 and PCA9535C series, which offer enhanced features such as higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, and smaller packaging. It is particularly useful in scenarios where additional I/O is needed for various applications like ACPI power switches, sensors, push buttons, LEDs, and fans.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 24-HVQFN |
| Supply Voltage Range | 2.3 V to 5.5 V |
| I/O Configuration | Individual configuration as input or output |
| Number of I/O Pins | 16 |
| Interface | I²C, SMBus |
| Clock Frequency | 0 Hz to 400 kHz |
| Operating Temperature Range | -40°C to 85°C |
| Interrupt Output | Active LOW interrupt output |
| ESD Protection | Exceeds 2000 V HBM, 200 V MM, and 1000 V CDM |
Key Features
- Operating power supply voltage range of 2.3 V to 5.5 V
- 5 V tolerant I/Os
- Polarity Inversion register for active HIGH or active LOW operation
- Active LOW interrupt output
- Low standby current
- No glitch on power-up
- Internal power-on reset
- Noise filter on SCL/SDA inputs
- Individual I/O configuration
- High-impedance open-drain outputs (PCA9535C variant)
Applications
- ACPI power switches
- Sensors
- Push buttons
- LEDs
- Fans
- General purpose I/O expansion in various embedded systems
Q & A
- What is the PCA9535BS1,118 used for?
The PCA9535BS1,118 is used for providing 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications.
- What is the operating voltage range of the PCA9535BS1,118?
The operating voltage range is from 2.3 V to 5.5 V.
- How many I/O pins does the PCA9535BS1,118 have?
The device has 16 I/O pins.
- What interface does the PCA9535BS1,118 use?
The device uses I²C and SMBus interfaces.
- What is the clock frequency range of the PCA9535BS1,118?
The clock frequency range is from 0 Hz to 400 kHz.
- Does the PCA9535BS1,118 have interrupt capabilities?
Yes, it has an active LOW interrupt output.
- What is the ESD protection level of the PCA9535BS1,118?
The ESD protection exceeds 2000 V HBM, 200 V MM, and 1000 V CDM.
- Can the PCA9535BS1,118 be used in high-temperature environments?
Yes, it operates within a temperature range of -40°C to 85°C.
- Is the PCA9535BS1,118 RoHS compliant?
Yes, the device is lead-free and RoHS compliant.
- How many devices can share the same I²C-bus/SMBus?
Up to eight devices can share the same I²C-bus/SMBus using different hardware address pins (A0, A1, A2).
