I/O Expanders
Browse available I/O Expanders part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| Photo | Mfr. Part # | Availability | Price | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
PCA9501BS,118IC XPND 400KHZ I2C SMBUS 20HVQFN |
3,319 | - |
|
Datasheet | - | 20-VQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | Yes | EEPROM, POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.5V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 20-HVQFN (5x5) |
|
PCAL9535APW,118IC XPND 400KHZ I2C SMBUS 24TSSOP |
3,679 | - |
|
Datasheet | Agile | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | 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-TSSOP |
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PCF8575RGERIC XPNDR 400KHZ I2C SMBUS 24VQFN |
2,485 | - |
|
Datasheet | - | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 1mA, 25mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-VQFN (4x4) |
|
|
PCA9673PW,118IC XPNDR 1MHZ I2C 24TSSOP |
7,104 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
|
PCA9671PW,118IC XPNDR 1MHZ I2C 24TSSOP |
5,225 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | No | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
|
PCA9675PW,118IC XPNDR 1MHZ I2C 24TSSOP |
2,971 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
PCA9671BS,118IC XPNDR 1MHZ I2C 24HVQFN |
2,316 | - |
|
Datasheet | - | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | No | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-HVQFN (4x4) |
|
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PCA9539RPW/Q900JIC XPND 400KHZ I2C SMBUS 24TSSOP |
5,940 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 3V ~ 5.5V | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | 24-TSSOP |
|
PI4IOE5V96224ZLEXIC XPNDR 1MHZ I2C SMBUS 32TQFN |
4,954 | - |
|
Datasheet | - | 32-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 24 | I2C, SMBus | Yes | POR | Push-Pull | 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 32-TQFN (3x6) |
|
PI4IOE5V6416Q2LEXIC XPNDR 400KHZ I2C 24TSSOP |
3,214 | - |
|
Datasheet | - | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 105°C | - | - | Surface Mount | 24-TSSOP |
|
ADP5587ACPZ-R7IC XPNDR 400KHZ I2C 24LFCSP |
6,273 | - |
|
Datasheet | - | 24-WFQFN Exposed Pad, CSP | Tape & Reel (TR) | Active | Not Verified | 18 | I2C | Yes | Keypad Controller, POR | Open Drain | - | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 24-LFCSP-WQ (4x4) |
|
MAX7320AEE+IC XPNDR 400KHZ I2C 16QSOP |
829 | - |
|
Datasheet | - | 16-SSOP (0.154", 3.90mm Width) | Tube | Active | Not Verified | 8 (Output Only) | I2C | No | POR | Open Drain, Push-Pull | 25mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-QSOP |
|
CY8C9520A-24PVXIIC XPNDR 100KHZ I2C 28SSOP |
584 | - |
|
Datasheet | - | 28-SSOP (0.209", 5.30mm Width) | Tube | Active | Not Verified | 20 | I2C | Yes | EEPROM, POR, PWM, WDT | Open Drain | 10mA, 25mA | 100 kHz | 3V ~ 5.25V | -40°C ~ 85°C | - | - | Surface Mount | 28-SSOP |
|
MAX7319ATE+IC XPNDR 400KHZ I2C 16TQFN |
443 | - |
|
Datasheet | - | 16-WFQFN Exposed Pad | Tube | Active | Not Verified | 8 (Input Only) | I2C | Yes | POR | - | 25mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-TQFN (3x3) |
|
MAX7328AWE+IC XPNDR 100KHZ 2-WIRE 16SOIC |
126 | - |
|
Datasheet | - | 16-SOIC (0.295", 7.50mm Width) | Tube | Active | Not Verified | 8 | 2-Wire | No | - | Open Drain | - | 100 kHz | 2.5V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-SOIC |
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MAX7320ATE+IC XPNDR 400KHZ I2C 16TQFN |
3,131 | - |
|
Datasheet | - | 16-WFQFN Exposed Pad | Tube | Active | Not Verified | 8 | I2C | No | POR | Open Drain, Push-Pull | 25mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-TQFN (3x3) |
|
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MAX7315ATE+IC XPNDR 400KHZ I2C SMBUS 16TQFN |
2,323 | - |
|
Datasheet | - | 16-WFQFN Exposed Pad | Tube | Active | Not Verified | 8 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 16-TQFN (3x3) |
|
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MAX7319AEE+IC XPNDR 400KHZ I2C 16QSOP |
2,112 | - |
|
Datasheet | - | 16-SSOP (0.154", 3.90mm Width) | Tube | Active | Not Verified | 8 (Input Only) | I2C | Yes | POR | - | 25mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-QSOP |
|
MAX7312AAG+IC XPNDR 400KHZ I2C SMBUS 24SSOP |
2,165 | - |
|
Datasheet | - | 24-SSOP (0.209", 5.30mm Width) | Tube | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 31mA, 43mA | 400 kHz | 2V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 24-SSOP |
|
MAX7313ATG+IC XPNDR 400KHZ I2C SMBUS 24TQFN |
3,958 | - |
|
Datasheet | - | 24-WFQFN Exposed Pad | Tube | Active | Not Verified | 16 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-TQFN (4x4) |
I/O Expanders FAQ
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Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.
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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
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Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.
