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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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XRA1207IL24-FIC XPNDR 400KHZ I2C SMBUS 24QFN |
0 | - |
|
Datasheet |
- | 24-VFQFN Exposed Pad | Tray | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | - | Open Drain | - | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 24-QFN (4x4) |
|
XRA1402IG16-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 |
|
XRA1402IL16-FIC XPNDR 26MHZ SPI 16QFN |
0 | - |
|
Datasheet |
- | 16-VFQFN Exposed Pad | Tray | Obsolete | Not Verified | 8 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-QFN (3x3) |
|
XRA1403IG24-FIC XPNDR 26MHZ SPI 24TSSOP |
0 | - |
|
Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 16 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
XRA1404IL16-FIC XPNDR 26MHZ SPI 16QFN |
0 | - |
|
Datasheet |
- | 16-VFQFN Exposed Pad | Bulk | Obsolete | Not Verified | 8 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-QFN (3x3) |
|
XRA1200IL16-FIC XPNDR 400KHZ I2C SMBUS 16QFN |
0 | - |
|
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) |
|
XRA1405IG24-FIC XPNDR 26MHZ SPI 24TSSOP |
0 | - |
|
Datasheet |
- | 24-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 16 | SPI | Yes | - | Open Drain | - | 26 MHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
XRA1200PIG16-FIC XPND 400KHZ I2C SMBUS 16TSSOP |
0 | - |
|
Datasheet |
- | 16-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | - | Open Drain | - | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
XRA1200PIL16-FIC XPNDR 400KHZ I2C SMBUS 16QFN |
0 | - |
|
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) |
|
PCA9534PW/DG,118IC I/O EXPANDER I2C/SMBU 16TSSOP |
0 | - |
|
Datasheet |
* | - | Tape & Reel (TR) | Obsolete | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
DS4550EIC XPNDR 400KHZ I2C JTAG 20TSSOP |
0 | - |
|
- |
- | 20-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 9 | I2C, JTAG | No | EEPROM, POR | Open Drain | 16mA | 400 kHz | 2.7V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 20-TSSOP |
|
PCA9554U,029IC XPNDR 400KHZ I2C SMBUS DIE |
0 | - |
|
- |
- | Die | Bulk | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | - | - | - | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | Die |
|
PCA9500BSHPIC XPND 400KHZ I2C SMBUS 16HVQFN |
0 | - |
|
- |
- | 16-VQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SMBus | No | EEPROM, POR | Push-Pull | 100µA, 25mA | 400 kHz | 2.5V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 16-HVQFN (4x4) |
|
CP2120-GMRIC XPNDR 400KHZ I2C SPI 20QFN |
0 | - |
|
Datasheet |
- | 20-VFQFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | 8 | I2C, SPI | Yes | - | Open Drain, Push-Pull | 100mA | 400 kHz | 3V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 20-QFN (4x4) |
|
XRA1201IG24-FIC XPND 400KHZ I2C SMBUS 24TSSOP |
0 | - |
|
- |
- | 24-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | 16 | I2C, SMBus | Yes | - | - | - | 400 kHz | 1.65V ~ 3.6V | -40°C ~ 85°C | - | - | Surface Mount | 24-TSSOP |
|
AAT4295IJS-T1IC XPNDR SERIAL SC70 |
0 | - |
|
Datasheet |
- | 8-TFSOJ (0.069", 1.75mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 3 | Serial | No | - | - | - | - | 1.8V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 8-SC70JW |
|
LC709004AMJ-AHIC XPNDR PARALLEL 24MFPSJ |
0 | - |
|
- |
- | 24-SOP (0.236", 6.00mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 16 | Parallel | No | - | CMOS, Open-Drain | - | - | 2V ~ 6V | -30°C ~ 70°C | - | - | Surface Mount | 24-MFPSJ |
|
LC709006A-EIC XPNDR PARALLEL 36MFPSDJ |
0 | - |
|
- |
- | 36-SOP (0.311", 7.90mm Width) | Tube | Obsolete | Not Verified | 24 | Parallel | No | - | CMOS, Open-Drain | - | - | 2V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 36-MFPSDJ |
|
LC709006A-TLM-EIC XPNDR PARALLEL 36MFPSDJ |
0 | - |
|
- |
- | 36-SOP (0.311", 7.90mm Width) | Tape & Reel (TR) | Obsolete | Not Verified | 24 | Parallel | No | - | CMOS, Open-Drain | - | - | 2V ~ 6V | -40°C ~ 85°C | - | - | Surface Mount | 36-MFPSDJ |
|
LC709006V-EIC IO EXPANDER |
0 | - |
|
- |
- | - | Tube | Obsolete | Not Verified | - | - | No | - | - | - | - | 2V ~ 6V | -40°C ~ 85°C | - | - | - | - |

