I/O Expanders
Browse available I/O Expanders part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.
For BOM, shortage or hard-to-find requirements, send your part number and quantity to Winsun (HK) Electronics for availability, lead-time and quotation support.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MM82PC12NIIC XPNDR CMOS |
4,004 | - |
|
Datasheet | - | - | Bulk | Active | Not Verified | 8 | CMOS | Yes | - | - | - | - | 4.5V ~ 5.5V | -40°C ~ 85°C | - | - | - | - |
|
MAX7300ATIMULTI-PORT I/O EXPANDER |
1,390 | - |
|
Datasheet | - | 28-WFQFN Exposed Pad | Bulk | Active | Not Verified | 20 | I2C, 2-Wire Serial | Yes | - | Open Drain, Push-Pull | 4.5mA, 10mA | 400 kHz | 2.5V ~ 5.5V | -40°C ~ 125°C | - | - | Surface Mount | 28-TQFN (5x5) |
|
CMP82C55AZIC XPNDR PARALLEL 40DIP |
1,328 | - |
|
Datasheet | - | 40-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | 24 | Parallel | No | - | Open Drain | 2.5mA | - | 4.5V ~ 5.5V | 0°C ~ 70°C | - | - | Through Hole | 40-PDIP |
|
CDP1852CD3IC XPNDR PARALLEL 24SBDIP |
920 | - |
|
Datasheet | - | 24-CDIP (0.600", 15.24mm) | Bulk | Active | Not Verified | 8 | Parallel | No | - | - | 4.4mA, 6.1mA | - | 4V ~ 6.5V | -55°C ~ 125°C | - | - | Through Hole | 24-SBDIP |
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|
IMS82C55AZIC XPNDR PARALLEL 44PLCC |
110 | - |
|
Datasheet | - | 44-LCC (J-Lead) | Tube | Obsolete | Not Verified | 24 | Parallel | No | - | Open Drain | 2.5mA | - | 4.5V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 44-PLCC (16.58x16.58) |
|
VSC7161XHK10 PORT SAS EXPANDER AT 1.5GBPS |
3,159 | - |
|
Datasheet | * | - | Bulk | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
MD8243/BI/O EXPANDER |
317 | - |
|
Datasheet | * | - | Bulk | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
MC68B21CP-GMC68B21 - PERIPHERAL INTERFACE A |
3,899 | - |
|
Datasheet | * | - | Bulk | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
933FM/BDUAL FOUR INPUT EXPANDER |
454 | - |
|
Datasheet | * | - | Bulk | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
VSC7155XVU-02IC INTERFACE CONTROLLER |
1,016 | - |
|
Datasheet | * | - | Tube | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
LD8755APARALLEL I/O PORT, 16 I/O, MOS, |
433 | - |
|
Datasheet | * | - | Bulk | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
VSC7153SS-02IC INTERFACE CONTROLLER |
8,688 | - |
|
Datasheet | * | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
VSC7153XSS-02IC INTERFACE CONTROLLER |
486 | - |
|
Datasheet | * | - | Tube | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
VSC7154XYS/CIC INTERFACE CONTROLLER |
3,954 | - |
|
Datasheet | * | - | Tube | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
NSC831E-MILPARALLEL IO PORT, 8-BIT CQCC44 |
2,743 | - |
|
Datasheet | - | - | Bulk | Active | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
933HM/BDUAL FOUR INPUT EXPANDER |
169 | - |
|
Datasheet | * | - | Bulk | Active | Not Verified | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
|
CAT9554AWGI-T2IC XPNDR 400KHZ I2C SMBUS 16SOIC |
6,000 | - |
|
Datasheet | CAT9554 | 16-SOIC (0.154", 3.90mm Width) | Bulk | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Open Collector, Open Drain, Push-Pull | 10mA, 24mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-SOIC |
|
|
CAT9554AYGIIC XPND 400KHZ I2C SMBUS 16TSSOP |
3,544 | - |
|
Datasheet | CAT9554 | 16-TSSOP (0.173", 4.40mm Width) | Bulk | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Open Collector, Open Drain, Push-Pull | 10mA, 24mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
|
CAT9554AYGI-T2IC XPND 400KHZ I2C SMBUS 16TSSOP |
2,000 | - |
|
Datasheet | CAT9554 | 16-TSSOP (0.173", 4.40mm Width) | Bulk | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Open Collector, Open Drain, Push-Pull | 10mA, 24mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
|
|
CAT9554YGIIC XPND 400KHZ I2C SMBUS 16TSSOP |
1,936 | - |
|
Datasheet | CAT9554 | 16-TSSOP (0.173", 4.40mm Width) | Bulk | Obsolete | Not Verified | 8 | I2C, SMBus | Yes | POR | Open Collector, Open Drain, Push-Pull | 10mA, 24mA | 400 kHz | 2.3V ~ 5.5V | -40°C ~ 85°C | - | - | Surface Mount | 16-TSSOP |
I/O Expanders FAQ
Common questions about selecting, comparing and sourcing I/O Expanders components through Winsun (HK) Electronics.
What should I check when selecting I/O Expanders components?
Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.
Can Winsun help source specific I/O Expanders part numbers?
Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.
Do you support shortage, obsolete or hard-to-find I/O Expanders parts?
Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.
How do I request a quote for I/O Expanders components?
Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.
