I/O Expanders
Devices in this family are used in conjunction with microcontrollers, microprocessors, or similar devices for the purpose of increasing the number of signal connections available for connecting peripheral devices. The typical concept of operation involves the use of serial communications requiring only a few I/O lines on the host device to read/write the status of many input/output pins on the expander device. The technique exchanges speed of communication for increased connectivity, and is best suited for applications where fast response is not critical, such as in many human interface applications.
Sourcing Semtech I/O Expanders: in-stock lines for quick ship, BOM matching for multi-line builds, and original-channel screening — not keyword stuffing.
Product List
Total Components: 15
| Product | Pricing | Datasheet | Number of I/O | Interrupt Output | Current - Output Source/Sink | Clock Frequency | Features | Interface | Mounting Type | Operating Temperature | Output Type | Voltage - Supply | Package / Case | Supplier Device Package | Stock & Quantity |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 SX1502I087TRT Semtech | 1 $1.6119 100 $1.2895 500 $1.0746 | 8 | Yes | 8mA, 24mA | 400 kHz | POR | I²C | Surface Mount | -40°C ~ 85°C | Push-Pull | 1.2V ~ 5.5V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 1,000 | |
SX1508BIULTRT Semtech | 1 $2.1800 | 8 | Yes | - | 400 kHz | POR | I²C | Surface Mount | -40°C ~ 85°C | Open Drain, Push-Pull | 1.2V ~ 3.6V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 2,811 | |
 SX1509BIULTRT Semtech | 1 $3.5500 | 16 | Yes | 8mA, 15mA | 400 kHz | Keypad Controller, LED Output, POR | I²C | Surface Mount | -40°C ~ 85°C | Open Drain, Push-Pull | 1.425V ~ 3.6V | 28-UFQFN Exposed Pad | 28-QFN-UT (4x4) | 4,300 | |
SX1511BIULTRT Semtech | 8 | No | 8mA, 15mA | 20 MHz | - | SPI | Surface Mount | -40°C ~ 85°C | Open Drain, Push-Pull | 1.425V ~ 3.6V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 4,632 | ||
SX1512BIULTRT Semtech | 16 | No | 8mA, 15mA | 20 MHz | - | SPI | Surface Mount | -40°C ~ 85°C | Open Drain, Push-Pull | 1.425V ~ 3.6V | 28-UFQFN Exposed Pad | 28-QFN-UT (4x4) | 5,316 | ||
 SX1501087TRT Semtech | - | - | - | - | - | - | - | - | - | - | - | - | 5,175 | ||
SX1502087TRT Semtech | - | - | - | - | - | - | - | - | - | - | - | - | 2,144 | ||
SX1503I091TRT Semtech | 1 $1.6200 | 16 | Yes | 8mA, 24mA | 400 kHz | POR | I²C | Surface Mount | -40°C ~ 85°C | Push-Pull | 1.2V ~ 5.5V | 28-UFQFN Exposed Pad | 28-QFN-UT (4x4) | 5,927 | |
SX1509QBIULTRT Semtech | 1 $3.5500 | 16 | Yes | 8mA, 15mA | 400 kHz | Keypad Controller, LED Output, POR | I²C | Surface Mount | -40°C ~ 85°C | Open Drain, Push-Pull | 1.425V ~ 3.6V | 28-UFQFN Exposed Pad | 28-QFN-UT (4x4) | 7,625 | |
SX1508QBIULTRT Semtech | 1 $0.9990 | 8 | No | 8mA, 15mA | 400 kHz | - | I²C | Surface Mount | -40°C ~ 85°C | Open Drain, Push-Pull | 1.425V ~ 3.6V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 5,298 | |
SX1501I087TRT Semtech | 4 | Yes | 8mA, 24mA | 400 kHz | POR | I²C | Surface Mount | -40°C ~ 85°C | Push-Pull | 1.2V ~ 5.5V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 3,560 | ||
SX1504I087TRT Semtech | 4 | Yes | 8mA, 24mA | 400 kHz | POR | I²C | Surface Mount | -40°C ~ 85°C | Push-Pull | 2.5V ~ 5.5V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 2,936 | ||
SX1505I087TRT Semtech | 8 | Yes | 8mA, 24mA | 400 kHz | POR | I²C | Surface Mount | -40°C ~ 85°C | Push-Pull | 2.5V ~ 5.5V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 2,580 | ||
SX1506I091TRT Semtech | 16 | Yes | 8mA, 24mA | 400 kHz | POR | I²C | Surface Mount | -40°C ~ 85°C | Push-Pull | 2.5V ~ 5.5V | 28-UFQFN Exposed Pad | 28-QFN-UT (4x4) | 9,989 | ||
SX1508IULTRT Semtech | 8 | Yes | 8mA, 15mA | 400 kHz | Keypad Controller, LED Output, POR | I²C | Surface Mount | -40°C ~ 85°C | Open Drain, Push-Pull | 1.425V ~ 3.6V | 20-UFQFN Exposed Pad | 20-QFN-UT (3x3) | 5,208 |