PCA9535PWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
PCA9535PWR is a 16-bit I2C/SMBus I/O expander with interrupt output, operating at up to 400 kHz in a 24-TSSOP package. From $0.77 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- PCA9535PWR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7675(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 16-bit I/O expansion via I2C/SMBus interface at up to 400 kHz fast-mode
- Two configurable 8-bit I/O ports with independent direction control per pin
- Active-low interrupt output for real-time change notification without polling
- Low standby current and 2.3V–5.5V supply voltage range for flexible system integration
- 24-TSSOP (TSSOP-24) package enables compact PCB layout
Applications
The PCA9535PWR is widely used in embedded systems and consumer electronics where GPIO expansion is needed, such as LED matrix control, keypad scanning, and sensor interfacing. It is commonly deployed in industrial automation panels, smart home gateways, and IoT edge nodes to extend microcontroller I/O with minimal bus overhead. Its interrupt-driven design makes it ideal for battery-powered and real-time applications requiring efficient pin monitoring.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Address Bus Width | 8 |
| Clock Frequency-Max | 0.4MHz |
| JESD-30 Code | R-PDSO-G24 |
| JESD-609 Code | e4 |
| Number of Bits | 16 |
| Number of I/O Lines | 16 |
| Number of Ports | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP24,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.2mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | PARALLEL IO PORT, GENERAL PURPOSE |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PCA9535PWR:
Frequently Asked Questions
What is the maximum clock frequency supported by the PCA9535PWR?
The PCA9535PWR supports I2C fast-mode operation at up to 400 kHz, making it compatible with most microcontrollers and SoCs that implement the standard I2C/SMBus protocol.
How many I/O pins does the PCA9535PWR provide and how are they organized?
The PCA9535PWR provides 16 bidirectional I/O pins organized into two independent 8-bit ports (Port 0 and Port 1). Each pin can be individually configured as input or output via the configuration registers.
What package does the PCA9535PWR use and what are its supply voltage requirements?
The PCA9535PWR comes in a 24-pin TSSOP (TSSOP-24) package. It operates from a supply voltage range of 2.3V to 5.5V, making it suitable for both 3.3V and 5V systems.
Does the PCA9535PWR support interrupt functionality?
Yes, the PCA9535PWR features an active-low interrupt output (INT) that asserts whenever an input pin changes state. This eliminates the need for continuous polling and reduces CPU overhead in real-time applications.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.5400 | $2.54 |
| 10+ | $1.5800 | $15.80 |
| 25+ | $1.4500 | $36.25 |
| 100+ | $1.2543 | $125.43 |
| 250+ | $1.2141 | $303.52 |
| 265+ | $0.7675 | $203.39 |
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