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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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NLVPCA9535EMTTXGIC XPNDR 100KHZ I2C 24WQFN |
0 | - |
|
Datasheet |
- | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | - | Open Drain | - | 100 kHz | 1.65V ~ 5.5V | -55°C ~ 125°C | - | - | Surface Mount | 24-WQFN (4x4) |
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PCA9535BS1,118IC XPND 400KHZ I2C SMBUS 24HWQFN |
0 | - |
|
Datasheet |
- | 24-WFQFN 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-HWQFN (4x4) |
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PCA9672PW,118IC XPNDR 1MHZ I2C 16TSSOP |
0 | - |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
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XRA1404IL16TR-FIC XPNDR 26MHZ SPI 16QFN |
0 | - |
|
Datasheet |
- | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Last Time Buy | Not Verified | 8 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-QFN (3x3) |
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XRA1402IG16TR-FIC XPNDR 26MHZ SPI 16TSSOP |
0 | - |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Last Time Buy | Not Verified | 8 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
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PCA9554ADBIC XPNDR 400KHZ I2C SMBUS 16SSOP |
0 | - |
|
Datasheet |
- | 16-SSOP (0.209", 5.30mm Width) | Tray | 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-SSOP |
|
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PCA9554APWIC XPND 400KHZ I2C SMBUS 16TSSOP |
0 | - |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tube | 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-TSSOP |
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XRA1404IG16-FIC XPNDR 26MHZ SPI 16TSSOP |
0 | - |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 8 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
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PI4IOE5V9555LEIC XPNDR 400KHZ I2C 24TSSOP |
0 | - |
|
Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tube | Active | Not Verified | 16 | I2C | Yes | - | - | - | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
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TCAL6416RDTOR16-BIT TRANSLATING IC-BUS/SMBUS |
0 | - |
|
Datasheet |
- | 24-QFN | Tape & Reel (TR) | Active | - | 16 | I2C, SMBus | Yes | POR | Open Drain, Push-Pull | 10mA, 25mA | 1 MHz | 1.08V ~ 3.6V | -40°C ~ 125°C | - | - | Surface Mount | 24-X2QFN (2x2) |
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PCA9555BSHPIC XPND 400KHZ I2C SMBUS 24HVQFN |
0 | - |
|
Datasheet |
- | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Active | 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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W83L604GIC XPNDR SMBUS 20SSOP |
0 | - |
|
Datasheet |
- | 20-SSOP (0.209", 5.30mm Width) | Tube | Not For New Designs | Not Verified | 14 | SMBus | Yes | Buzzer Outputs, LED Outputs, POR | Open Drain, Push-Pull | 16mA | - | 3.3V | 0°C ~ 70°C | - | - | Surface Mount | 20-SSOP |
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PCA9555N,112IC XPNDR 400KHZ I2C SMBUS 24DIP |
0 | - |
|
Datasheet |
- | 24-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Through Hole | 24-DIP |
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PCAL9722HN/Q900HPPCAL9722HN/Q900 |
0 | - |
|
Datasheet |
- | 32-VFQFN Exposed Pad | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | Surface Mount | 32-HVQFN (5x5) |
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PCA9536DP/DG,118IC XPNDR 400KHZ I2C SMBUS 8TSSOP |
0 | - |
|
Datasheet |
- | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 4 | I2C, SMBus | No | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 8-TSSOP |
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PCA9539RPW,112IC XPND 400KHZ I2C SMBUS 24TSSOP |
0 | - |
|
Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tube | 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-TSSOP |
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PCA9555RGERG4IC XPNDR 400KHZ I2C SMBUS 24VQFN |
0 | - |
|
Datasheet |
- | 24-VFQFN Exposed Pad | 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-VQFN (4x4) |
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TCA9536CDTMRPROTOTYPE |
0 | - |
|
Datasheet |
- | 8-XFDFN Exposed Pad | Tape & Reel (TR) | Active | - | 4 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 1 MHz | 1.65V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 8-X2SON (1.35x0.8) |
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PCA9555DWRG4IC XPNDR 400KHZ I2C SMBUS 24SOIC |
0 | - |
|
Datasheet |
- | 24-SOIC (0.295", 7.50mm 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-SOIC |
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PCA9671BQ,118IC XPNDR 1MHZ I2C 24DHVQFN |
0 | - |
|
Datasheet |
- | 24-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C | No | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-DHVQFN (5.5x3.5) |
