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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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PCA9674AN,112IC XPNDR 1MHZ I2C 16DIP |
0 | - |
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Datasheet |
- | 16-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Through Hole | 16-DIP |
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PCF8574NG4IC XPNDR 100KHZ I2C 16DIP |
0 | - |
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Datasheet |
- | 16-DIP (0.300", 7.62mm) | Tube | Discontinued at Digi-Key | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Through Hole | 16-PDIP |
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PCA9554APWRG4IC XPND 400KHZ I2C SMBUS 16TSSOP |
0 | - |
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Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | 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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PCF8574ADWRE4IC XPNDR 100KHZ I2C 16SOIC |
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 | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 16-SOIC |
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PCF8574ADWRG4IC XPNDR 100KHZ I2C 16SOIC |
0 | - |
|
Datasheet |
- | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 16-SOIC |
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PCA9554APWG4IC XPND 400KHZ I2C SMBUS 16TSSOP |
0 | - |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tube | Discontinued at Digi-Key | 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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PCF8574ARGYRG4IC XPNDR 100KHZ I2C 20VQFN |
0 | - |
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Datasheet |
- | 20-VFQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-VQFN (3.5x4.5) |
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PCA9674N,112IC XPNDR 1MHZ I2C 16DIP |
0 | - |
|
Datasheet |
- | 16-DIP (0.300", 7.62mm) | Tube | Obsolete | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 1 MHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Through Hole | 16-DIP |
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PCF8574APWRE4IC XPNDR 100KHZ I2C 20TSSOP |
0 | - |
|
Datasheet |
- | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-TSSOP |
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PCF8574APWRG4IC XPNDR 100KHZ I2C 20TSSOP |
0 | - |
|
Datasheet |
- | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-TSSOP |
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PCF8574DGVRG4IC XPNDR 100KHZ I2C 20TVSOP |
0 | - |
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Datasheet |
- | 20-TFSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C | Yes | POR | Push-Pull | 1mA, 25mA | 100 kHz | 2.5V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 20-TVSOP |
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PCAL9722HNHPPCAL9722HN |
0 | - |
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Datasheet |
- | 32-VFQFN Exposed Pad | Tape & Reel (TR) | Active | - | - | - | - | - | - | - | - | - | - | - | - | Surface Mount | 32-HVQFN (5x5) |
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XRA1206IL16-FIC XPNDR 400KHZ I2C SMBUS 16QFN |
1 | - |
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Datasheet |
- | 16-VFQFN Exposed Pad | Tray | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | - | Open Drain | - | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-QFN (3x3) |
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XRA1403IG24TR-FIC XPNDR 26MHZ SPI 24TSSOP |
0 | - |
|
Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | 16 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
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PCA9534ARGTRG4IC XPNDR 400KHZ I2C SMBUS 16VQFN |
0 | - |
|
Datasheet |
- | 16-VFQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-VQFN (3x3) |
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PCA9534RGVRG4IC XPNDR 400KHZ I2C SMBUS 16VQFN |
0 | - |
|
Datasheet |
- | 16-VQFN Exposed Pad | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | 8 | I2C, SMBus | Yes | POR | Push-Pull | 10mA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-VQFN (4x4) |
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PCA8575DK,118IC XPNDR 400KHZ I2C 24SSOP |
0 | - |
|
Datasheet |
- | 24-SSOP (0.154", 3.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 16 | I2C | Yes | POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-SSOP |
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PCA9535HFHPIC XPND 400KHZ I2C SMBUS 24HWQFN |
0 | - |
|
Datasheet |
- | 24-WFQFN Exposed Pad | Tape & Reel (TR) | Active | Not Verified | 16 | I2C, SMBus | Yes | POR | Open Drain | 160mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 24-HWQFN (4x4) |
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PCA9539PW,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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PCA9539PW/Q900,118IC XPND 400KHZ I2C SMBUS 24TSSOP |
0 | - |
|
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 |
