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Updated at 25/10/2025 10:30:15(UTC+8)
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Description
- DESCRIPTION/ORDERING INFORMATION
- This 8-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC
- operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)]. The PCA9534 consists of one 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low) register. At power on, the I/Os are configured as inputs. However, the system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
- FEATURES
- • Low Standby Current Consumption of 1 µA Max
- • I2C to Parallel Port Expander
- • Open-Drain Active-Low Interrupt Output
- • Operating Power-Supply Voltage Range of 2.3 V to 5.5 V
- • 5-V Tolerant I/O Ports
- • 400-kHz Fast I2C Bus
- • Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus
- • Input/Output Configuration Register
- • Polarity Inversion Register
- • Internal Power-On Reset
- • Power-Up With All Channels Configured as Inputs
- • No Glitch on Power-Up
- • Noise Filter on SCL/SDA Inputs
- • Latched Outputs With High-Current Drive Maximum Capability for Directly Driving LEDs
- • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
PCA9534PWR Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 16 Pin |
| Case/Package | TSSOP-16 |
| Supply Voltage (DC) | 2.30V ~ 5.50V |
| Number of Outputs | 8 Output |
| Number of Positions | 16 Position |
| Clock Speed | 400 kHz |
| Voltage Nodes | 2.70 V, 3.30 V, 3.60 V, 5.00 V |
| Number of Inputs and Outputs | 8 Input IO |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 2.3V ~ 5.5V |
| Supply Voltage (Max) | 5.5 V |
| Supply Voltage (Min) | 2.3 V |
| Show | |
| Operating Temperature | -40℃ ~ 85℃ |
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| ECCN Code | EAR99 |
Order guide
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- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
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