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0755-82798135I/O Expanders
I/O Expanders are interface ICs used to increase the number of input and output ports available to microcontrollers, processors and embedded systems. They are widely used in industrial control, communication equipment, consumer electronics, automotive electronics, medical devices, IoT products, smart home devices and embedded control applications.
This category includes GPIO expanders, I2C I/O expanders, SPI I/O expanders, port expanders, keypad interface expanders, LED control expanders and related interface control components. These devices are commonly selected based on interface type, number of I/O channels, supply voltage, interrupt support, output drive capability, package type and system compatibility.
TomatoElec supplies original I/O Expanders from recognized semiconductor manufacturers such as Texas Instruments, NXP, Microchip, STMicroelectronics, onsemi, Diodes Incorporated, Renesas, Infineon and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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PCA9672D,518IC XPNDR 1MHZ I2C 16SO |
0 | - |
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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 |
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NCT5655YIC XPNDR 400KHZ I2C SMBUS 24QFN |
0 | - |
|
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) |
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NCT5635YSMBUS-GPIO EXPANDER; 16 GPIO PIN |
0 | - |
|
- |
- | - | Tray | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
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PCA6416AEVJIC XPND 400KHZ I2C SMBUS 24VFBGA |
0 | - |
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Datasheet |
- | 24-VFBGA | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-VFBGA (3x3) |
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MIC74BQS-TRIC XPNDR 100KHZ I2C SMBUS 16QSOP |
0 | - |
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Datasheet |
- | 16-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C, SMBus | Yes | Fan Speed Controller | Open Drain, Push-Pull | 7mA, 10mA | 100 kHz | 2.7V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-QSOP |
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DS4520EIC XPNDR 400KHZ I2C 16TSSOP |
0 | - |
|
- |
- | 16-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 9 | I2C | No | EEPROM, POR | Open Drain | 12mA | 400 kHz | 2.7V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
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PCA9674ATS,118IC XPNDR 1MHZ I2C 20SSOP |
0 | - |
|
Datasheet |
- | 20-LSSOP (0.173", 4.40mm 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 | 20-SSOP |
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PCA9674TS,118IC XPNDR 1MHZ I2C 20SSOP |
0 | - |
|
Datasheet |
- | 20-LSSOP (0.173", 4.40mm 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 | 20-SSOP |
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PCA9538D,118IC XPNDR 400KHZ I2C SMBUS 16SO |
0 | - |
|
Datasheet |
- | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-SO |
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SX1506I091TRTIC XPNDR 400KHZ I2C 28QFN |
0 | - |
|
Datasheet |
- | 28-UFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 8mA, 24mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 28-QFN-UT (4x4) |
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PCA9701HF,118IC XPNDR 5MHZ SPI SERIAL 24HWQFN |
0 | - |
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Datasheet |
- | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 (Input Only) | SPI Serial | Yes | - | Push-Pull | - | 5 MHz | 2.5V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 24-HWQFN (4x4) |
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PCA9537DP,118IC XPND 400KHZ I2C SMBUS 10TSSOP |
0 | - |
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Datasheet |
- | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 4 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 10-TSSOP |
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TCA6416RTWRIC XPNDR 400KHZ I2C SMBUS 24WQFN |
0 | - |
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Datasheet |
- | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Not For New Designs | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-WQFN (4x4) |
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SX1503I091TRTIC XPNDR 400KHZ I2C 28QFN |
0 | - |
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Datasheet |
- | 28-UFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 8mA, 24mA | 400 kHz | 1.2V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 28-QFN-UT (4x4) |
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MCP23017T-E/MLVAO16-BIT INPUT/OUTPUT EXPANDER, I2 |
0 | - |
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Datasheet |
- | 28-VQFN Exposed Pad | Tape & Reel (TR) | Active | - | 16 | I2C | Yes | POR | Open Drain | 25mA | 1.7 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | 28-QFN (6x6) |
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TCA7408ZSZRIC XPNDR 400KHZ I2C SMBUS 16UCSP |
0 | - |
|
Datasheet |
- | 16-UFBGA, CSPBGA | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-UCSP (2x2) |
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PCA9535PWG4IC XPND 400KHZ I2C SMBUS 24TSSOP |
0 | - |
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Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tube | 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 |
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STMPE1601TBRIC XPNDR 400KHZ I2C 25TFBGA |
0 | - |
|
Datasheet |
Xpander Logic™ | 25-TFBGA | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C | Yes | Keypad Controller, POR, PWM | Open Drain | 4mA | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 25-TFBGA (3x3) |
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NCT5655WIC XPND 400KHZ I2C SMBUS 24TSSOP |
0 | - |
|
Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tube | Active | Not Verified | 16 | I2C, SMBus | Yes | LED Output(s), POR | Open Drain | - | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
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STMPE1801BJRIC XPNDR 400KHZ I2C 25FLIPCHIP |
0 | - |
|
Datasheet |
Xpander Logic™ | 25-WFBGA, WLCSP | Tape & Reel (TR) | Obsolete | Not Verified | 18 | I2C | Yes | Keypad Controller, POR | Push-Pull | 4mA | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 25-FlipChip (2x2) |
