| Type | Description | 
|---|---|
| Series: | CAT9555 | 
| Package: | Bulk | 
| Part Status: | Obsolete | 
| Number of I/O: | 16 | 
| Interface: | I²C, SMBus | 
| Interrupt Output: | Yes | 
| Features: | POR | 
| Output Type: | Push-Pull | 
| Current - Output Source/Sink: | - | 
| Clock Frequency: | 400 kHz | 
| Voltage - Supply: | 2.3V ~ 5.5V | 
| Operating Temperature: | -40°C ~ 85°C | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 24-WFQFN Exposed Pad | 
| Supplier Device Package: | 24-TQFN (4x4) | 
| Image | Part Number | Description | Stock / Unit Price | 
|---|---|---|---|
![]()  | 
                                
                                    MCP23017T-E/SORoving Networks / Microchip Technology | 
                                
                                     IC I/O EXPANDER I2C 16B 28SOIC  | 
                                
                                     In Stock: 0 $1.26000  | 
                            
![]()  | 
                                
                                    CDP1872CD | 
                                
                                     8-BIT INPUT AND OUTPUT PORT  | 
                                
                                     In Stock: 1,044 $9.34000  | 
                            
![]()  | 
                                
                                    PCF8574APWG4Texas Instruments | 
                                
                                     IC I/O EXPANDER I2C 8B 20TSSOP  | 
                                
                                     In Stock: 0 $1.09631  | 
                            
![]()  | 
                                
                                    MCP23018-E/SPRoving Networks / Microchip Technology | 
                                
                                     IC I/O EXPANDER I2C 16B 28SDIP  | 
                                
                                     In Stock: 605 $1.66000  | 
                            
![]()  | 
                                
                                    JLC1562BFELGSanyo Semiconductor/ON Semiconductor | 
                                
                                     PARALLEL I/O PORT, 8 I/O, CMOS  | 
                                
                                     In Stock: 84,760 $0.77000  | 
                            
![]()  | 
                                
                                    PCA9535ECDTR2GSanyo Semiconductor/ON Semiconductor | 
                                
                                     IC I/O Expander 16B 24TSSOP  | 
                                
                                     In Stock: 1,807 $2.42000  | 
                            
![]()  | 
                                
                                    AD8401ARLinear Technology (Analog Devices, Inc.) | 
                                
                                     8-BIT I/O PORT  | 
                                
                                     In Stock: 18,907 $13.20000  | 
                            
![]()  | 
                                
                                    IS31IO7328-QFLS4-TRLumissil Microsystems | 
                                
                                     IC MULTI-FUNCTION I/O DVR 16QFN  | 
                                
                                     In Stock: 0 $0.57876  | 
                            
![]()  | 
                                
                                    MCP23008T-E/MLRoving Networks / Microchip Technology | 
                                
                                     IC I/O EXPANDER I2C 8B 20QFN  | 
                                
                                     In Stock: 0 $1.16000  | 
                            
![]()  | 
                                
                                    PCA9570GMHNXP Semiconductors | 
                                
                                     IC GPIO EXPANDER 8XQFN  | 
                                
                                     In Stock: 3,870 $0.61000  |