PCF8575RGER Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
PCF8575RGER is a 16-bit I2C I/O expander from Texas Instruments with 400 kHz fast-mode support and 2-port architecture. Supports 8 hardware address combinations for multi-device bus. From $1.71, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 24
- Lifecycle
- ACTIVE
- Datasheet
- PCF8575RGER Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7100(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PCF8575RGER?
- 16-bit I/O expansion over I2C bus with only 2 signal lines, reducing PCB wiring complexity
- Supports up to 400 kHz fast-mode I2C clock for high-speed data transfer
- 8 hardware-selectable I2C addresses (A0–A2) allow up to 8 devices on a single bus
- Dual 8-bit quasi-bidirectional ports with interrupt output for event-driven GPIO control
- Low standby current and 2.5 V to 5.5 V wide supply voltage range for flexible system integration
What is PCF8575RGER used for?
The PCF8575RGER is widely used in industrial control systems and consumer electronics where GPIO expansion is needed without additional microcontroller pins. It is ideal for driving LED matrices, reading keypad inputs, and controlling relay banks in building automation, smart home gateways, and industrial HMI panels. Its compact QFN-24 package and I2C interface also make it a popular choice for space-constrained IoT sensor nodes and embedded development boards.
What are the specifications of PCF8575RGER?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Address Bus Width | 8 |
| Clock Frequency-Max | 0.4MHz |
| JESD-30 Code | S-PQCC-N24 |
| 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 | LCC24,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.2mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.5V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | PARALLEL IO PORT, GENERAL PURPOSE |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the PCF8575RGER datasheet?
PCF8575RGER Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PCF8575RGER?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum I2C clock frequency supported by the PCF8575RGER?
The PCF8575RGER supports a maximum I2C clock frequency of 400 kHz (fast mode), making it compatible with standard-mode (100 kHz) and fast-mode I2C masters. This allows efficient communication in time-sensitive applications such as industrial control panels and embedded IoT systems.
How many PCF8575RGER devices can be connected on a single I2C bus?
Up to 8 PCF8575RGER devices can share a single I2C bus simultaneously, as the chip provides 3 hardware address pins (A0, A1, A2) that allow 8 unique 7-bit I2C addresses. This enables expansion to 128 I/O lines from a single bus pair, ideal for large LED or relay matrix applications.
What is the supply voltage range and package type of the PCF8575RGER?
The PCF8575RGER operates from a supply voltage of 2.5 V to 5.5 V, making it compatible with both 3.3 V and 5 V logic systems. It is housed in a compact 24-pin Quad Flat No-Lead (QFN) package, which offers a small PCB footprint and good thermal performance for space-constrained designs.
What are typical applications for the PCF8575RGER?
Typical applications include GPIO expansion in microcontroller-based systems, LED and relay array control, keypad matrix scanning, industrial HMI panels, smart home automation controllers, and IoT sensor hubs. Its 16-bit bidirectional I/O with interrupt output makes it suitable for any application requiring remote I/O control over I2C.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.8100 | $3.81 |
| 25+ | $2.0900 | $52.25 |
| 73+ | $1.9050 | $139.06 |
| 100+ | $1.8000 | $180.00 |
| 158+ | $1.7621 | $278.41 |
| 250+ | $1.7100 | $427.50 |
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