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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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MIC74YQS-TRIC XPNDR 100KHZ I2C SMBUS 16QSOP |
0 | - |
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Datasheet |
- | 16-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | 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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MAX7315AEE+TIC XPNDR 400KHZ I2C SMBUS 16QSOP |
0 | - |
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Datasheet |
- | 16-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 16-QSOP |
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MAX7323ATE+TIC XPNDR 400KHZ I2C 16TQFN |
0 | - |
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Datasheet |
- | 16-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 4 | I2C | Yes | POR | Open Drain, Push-Pull | 20mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-TQFN (3x3) |
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MAX7323AEE+TIC XPNDR 400KHZ I2C 16QSOP |
0 | - |
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Datasheet |
- | 16-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | 4 | I2C | Yes | POR | Open Drain, Push-Pull | 20mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 16-QSOP |
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PCF8575DWIC XPNDR 400KHZ I2C SMBUS 24SOIC |
0 | - |
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Datasheet |
- | 24-SOIC (0.295", 7.50mm Width) | Tube | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 4.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SOIC |
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MAX7313DAEG+IC XPNDR 400KHZ I2C SMBUS 24QSOP |
0 | - |
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Datasheet |
- | 24-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-QSOP |
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TCA6408RGTRIC XPNDR 400KHZ I2C SMBUS 16VQFN |
0 | - |
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Datasheet |
- | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-VQFN (3x3) |
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PCA9539RBS,118IC XPND 400KHZ I2C SMBUS 24HVQFN |
0 | - |
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Datasheet |
- | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-HVQFN (4x4) |
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PCA9539BS,115IC XPND 400KHZ I2C SMBUS 24HVQFN |
0 | - |
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Datasheet |
- | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-HVQFN (4x4) |
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PCA9539BSHPIC XPNDR 400KHZ I2C 24HVQFN |
0 | - |
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Datasheet |
- | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C | Yes | POR | Open Drain | 50mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-HVQFN (4x4) |
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TCA6416ZQSRIC XPNDR 400KHZ I2C SMBUS 24BGA |
0 | - |
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Datasheet |
- | 24-VFBGA | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-BGA MICROSTAR JUNIOR (3x3) |
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TCA6408PWRIC XPND 400KHZ I2C SMBUS 16TSSOP |
0 | - |
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Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 1.65V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
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MAX7313DATG+IC XPNDR 400KHZ I2C SMBUS 24TQFN |
0 | - |
|
Datasheet |
- | 24-WFQFN Exposed Pad | Tube | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | PWM | Open Drain | 50mA | 400 kHz | 2V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-TQFN (4x4) |
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MCP23008T-E/SSVAOIC XPNDR 10MHZ I2C 20SSOP |
0 | - |
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Datasheet |
- | 20-SSOP (0.209", 5.30mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 25mA | 10 MHz | 4.5V ~ 5.5V | -40°C ~ 125°C | Automotive | AEC-Q100 | Surface Mount | 20-SSOP |
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MAX7324AEG+TIC XPNDR 400KHZ I2C 24QSOP |
0 | - |
|
- |
- | 24-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 20mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 24-QSOP |
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MAX7324ATG+TIC XPNDR 400KHZ I2C 24TQFN |
0 | - |
|
- |
- | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 20mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 24-TQFN (4x4) |
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PCA9621D,118IC XPNDR 1MHZ I2C SMBUS 16SO |
0 | - |
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Datasheet |
- | 16-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | No | - | Open Drain | 65mA | 1 MHz | 2.7V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-SO |
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PCA9621PW,118IC XPNDR 1MHZ I2C SMBUS 16TSSOP |
0 | - |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | No | - | Open Drain | 65mA | 1 MHz | 2.7V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
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MAX7325AEG+TIC XPNDR 400KHZ I2C 24QSOP |
0 | - |
|
- |
- | 24-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 (8 Output Only) | I2C | Yes | POR | Open Drain, Push-Pull | 20mA | 400 kHz | 1.71V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 24-QSOP |
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MCP25020T-I/SLIC XPNDR 25MHZ CAN V2.0B 14SOIC |
0 | - |
|
Datasheet |
- | 14-SOIC (0.154", 3.90mm Width) | Tape & Reel (TR) | Active | Verified | 8 | CAN V2.0b | No | EEPROM, POR, PWM | Push-Pull | 25mA | 25 MHz | 2.7V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 14-SOIC |

