I/O Expanders
| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Series | Package/Case | Packaging | Product Status | Programmable | Number of I/O | Interface | Interrupt Output | Features | Output Type | Current - Output Source/Sink | Clock Frequency | Voltage - Supply | Operating Temperature | Grade | Qualification | Mounting Type | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PCAL6416AEXXIC XPND 400KHZ I2C SMBUS 24XFBGA |
4,635 |
|
- |
Agile | 24-XFBGA | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-XFBGA (2x2) |
|
PCAL6416AERXIC XPND 400KHZ I2C SMBUS 24UFBGA |
4,445 |
|
- |
Agile | 24-UFBGA | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-UFBGA (2x2) |
|
PCA9704PWJIC XPNDR 5MHZ SPI 16TSSOP |
3,324 |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 (Input Only) | SPI | Yes | - | Open Drain | - | 5 MHz | 4.5V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-TSSOP |
|
PCA9555PWRG4IC XPND 400KHZ I2C SMBUS 24TSSOP |
2,283 |
|
Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
|
PCF8574ANE48-BIT 2.5- TO 5.5-V I2C/SMBUS I/ |
4,445 |
|
Datasheet |
- | 16-DIP (0.300", 7.62mm) | Tube | Active | - | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Through Hole | 16-PDIP |
|
PCA9574HR,115IC XPNDR 400KHZ I2C 16HXQFNU |
2,374 |
|
Datasheet |
- | 16-XFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 1mA, 3mA | 400 kHz | 1.1V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-HXQFNU (2x2) |
|
PCF8574APWIC XPNDR 100KHZ I2C 20TSSOP |
1,539 |
|
Datasheet |
- | 20-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-TSSOP |
|
PCF8575DBQRG4IC XPNDR 400KHZ I2C SMBUS 24SSOP |
3,571 |
|
Datasheet |
- | 24-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 1mA, 25mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SSOP |
|
|
PCF8574NE48-BIT 2.5- TO 5.5-V I2C/SMBUS I/ |
4,239 |
|
Datasheet |
- | 16-DIP (0.300", 7.62mm) | Tube | Active | - | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Through Hole | 16-PDIP |
|
PCF8575DGVRG4IC XPND 400KHZ I2C SMBUS 24TVSOP |
1,481 |
|
Datasheet |
- | 24-TFSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 1mA, 25mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TVSOP |
|
|
TCAL6408DTURTCAL6408DTUR |
1,690 |
|
Datasheet |
- | 16-XFQFN | Tape & Reel (TR) | Active | - | 8 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 1 MHz | 1.08V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 16-X2QFN (1.6x1.6) |
|
|
KTS1620ERG-TRLOW VOLTAGE 24-BIT I2C-BUS I/O E |
3,006 |
|
Datasheet |
- | 32-WFQFN Exposed Pad | Tape & Reel (TR) | Active | - | 24 | I2C | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 1 MHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 32-TQFN (5x5) |
|
PCA8574AD,518IC XPNDR 400KHZ I2C 16SO |
4,962 |
|
Datasheet |
- | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-SO |
|
PCA8574TS,118IC XPNDR 400KHZ I2C 20SSOP |
2,790 |
|
Datasheet |
- | 20-LSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 20-SSOP |
|
PCAL9538ABS,128IC XPNDR 400KHZ I2C 16HVQFN |
2,067 |
|
Datasheet |
Agile | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-HVQFN (3x3) |
|
|
PCAL9554CBS,128IC XPND 400KHZ I2C SMBUS 16HVQFN |
4,965 |
|
Datasheet |
Agile | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-HVQFN (3x3) |
|
|
PCA9674BS,118IC XPNDR 1MHZ I2C 16HVQFN |
1,625 |
|
Datasheet |
- | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-HVQFN (3x3) |
|
|
PCA9672D,518IC XPNDR 1MHZ I2C 16SO |
4,232 |
|
Datasheet |
- | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-SO |
|
|
NCT5655YIC XPNDR 400KHZ I2C SMBUS 24QFN |
3,283 |
|
Datasheet |
- | 24-WFQFN Exposed Pad | Tray | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Open Drain | - | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-QFN (4x4) |
|
|
NCT5635YSMBUS-GPIO EXPANDER; 16 GPIO PIN |
2,722 |
|
- |
- | - | Tray | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
I/O Expanders Electronic Components Sourcing and Lifecycle Support
FPGAX is a global sourcing partner specializing in FPGA and programmable logic solutions for engineering and manufacturing organizations worldwide. For customers sourcing I/O Expanders components, we support both current production requirements and long-term component availability across demanding product lifecycles.
Our sourcing approach combines traceability, supply stability, and technical coordination. FPGAX is certified to AS9120B, ISO 9001:2008, and ISO 14001 standards and supports procurement programs where continuity, documentation, and dependable component supply are important.
How FPGAX Supports I/O Expanders Requirements
- Active component sourcing: support for current FPGA, programmable logic, and related semiconductor requirements.
- End-of-life sourcing: assistance with obsolete and hard-to-find parts when designs must remain in production.
- Lifecycle management: sourcing support during product transitions, allocation periods, and supply interruptions.
- Design continuity: long-term supply support intended to reduce redesign pressure and production disruption.
- Major programmable logic brands: sourcing coverage includes Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic.
Supply Support at a Glance
| Requirement | FPGAX Support |
| Current production | Active FPGA, programmable logic, and semiconductor component sourcing |
| Legacy programs | End-of-life and hard-to-find component sourcing |
| Supply continuity | Lifecycle transition and long-term availability support |
| Quality requirements | Traceable sourcing and quality-management processes |
Focused on FPGA and Programmable Logic Supply
FPGAX focuses on helping customers maintain access to critical programmable devices throughout the full component lifecycle. Whether the requirement is for a current design, an established production program, or an older platform facing component obsolescence, our goal is to provide a stable sourcing path and help customers maintain design and manufacturing continuity.
I/O Expanders FAQ
Can FPGAX source both active and end-of-life I/O Expanders components?
Yes. FPGAX supports sourcing for both active components and end-of-life or hard-to-find parts, with an emphasis on maintaining supply continuity for engineering and manufacturing programs.
Which programmable logic manufacturers does FPGAX support?
Our core sourcing coverage includes major FPGA and programmable logic manufacturers such as Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic, subject to specific part requirements and availability.
How does FPGAX help with component lifecycle changes?
We support customers through lifecycle transitions by helping locate current or legacy supply, reducing exposure to supply disruptions, and supporting long-term availability for designs that need to remain in production.
What quality and traceability standards does FPGAX follow?
FPGAX states certification to AS9120B, ISO 9001:2008, and ISO 14001 standards. Our sourcing services are structured around traceability, stable supply, and quality-management requirements.
What information should I provide for a I/O Expanders sourcing request?
Providing the manufacturer part number, required quantity, target delivery schedule, and any lifecycle or traceability requirements helps us evaluate the sourcing request more efficiently.