| 128392 | PCA9555PW,118 | TSSOP-24 | 16 | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 16256 | $0.73 |
| 148077 | AW9523BTQR | TQFN-24-EP(4x4) | 16 | 2.4V - 5.5V | I²C | Yes | 20mA sink / 20mA source | 400kHz | 11256 | $0.34 |
| 7605 | PCF8574T/3,518 | SOIC-16-300mil | 8 | 2.5V - 6V | I²C | Yes | 25mA sink / 300000mA source | 100kHz | 11004 | $1.40 |
| 130204 | TCA9535PWR | TSSOP-24 | 16 | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 8918 | $0.46 |
| 561273 | XL9535 | TSSOP-24 | | | | No | | | 8497 | $0.54 |
| 131972 | TCA9539PWR | TSSOP-24 | 16 | 1.65V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 7999 | $0.55 |
| 2987288 | PCF8574T/TR | SO-16-300mil | 8 | | I²C | No | | | 7743 | $0.72 |
| 133803 | PCA9534PWR | TSSOP-16 | 8 | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 7321 | $0.65 |
| 141380 | PCA9557PW,118 | TSSOP-16 | 8 | 2.3V - 5.5V | I²C, SMBus | No | 20mA sink / 10mA source | 400kHz | 6378 | $0.50 |
| 457770 | FXL6408UMX | UQFN-16(1.8x2.6) | | | | No | | | 5093 | $0.50 |
| 128577 | MCP23S17T-E/SS | SSOP-28-208mil | 16 | 1.8V - 5.5V | SPI | Yes | 25mA sink / 25mA source | 10MHz | 5013 | $1.32 |
| 609791 | XL9555 | TSSOP-24 | | | | No | | | 4541 | $0.52 |
| 2987289 | PCF8574AT/TR | SOP-16-W | 8 | | I²C | No | | | 4330 | $0.74 |
| 181499 | TCA6408ARGTR | QFN-16-EP(3x3) | 8 | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 4315 | $0.46 |
| 477924 | TCA9554PWR | TSSOP-16 | | 1.65V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 4302 | $0.66 |
| 629439 | MCP23017T-E/ML | QFN-28-EP(6x6) | | 1.8V - 5.5V | I²C | No | | 1.70MHz | 3701 | $1.41 |
| 255606 | PCA9535PW,118 | TSSOP-24 | 16 | 2.3V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 3563 | $1.48 |
| 2687996 | PCA9539PW,118 | TSSOP-24 | | 2.3V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 2910 | $0.97 |
| 2669725 | PI4IOE5V9539ZDEX | TQFN-24-EP(4x4) | | 2.3V - 5.5V | I²C | No | | 400kHz | 2864 | $1.08 |
| 22396388 | TCA9535PWR(UMW) | TSSOP-24 | 16 | 1.4V - 5.5V | I²C | Yes | | 2.40MHz | 2775 | $0.32 |
| 206010 | TCA9534APWR | TSSOP-16 | 8 | 1.65V - 5.5V | I²C | Yes | | 400kHz | 2705 | $0.57 |
| 140277 | TCA9555RTWR | WQFN-24-EP(4x4) | 16 | 1.65V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 2685 | $0.81 |
| 2652314 | PI4IOE5V6416ZDEX | QFN-24-EP(4x4) | | 1.65V - 5.5V | I²C | No | 25mA sink / 10mA source | 400kHz | 2670 | $1.33 |
| 3188776 | PI4IOE5V9535ZDEX | QFN-24(4x4) | | 2.3V - 5.5V | I²C | Yes | | 400kHz | 2549 | $0.50 |
| 80692 | TCA6424ARGJR | VQFN-32-EP(5x5) | 24 | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 2437 | $1.07 |
| 2688883 | PCA9536D,118 | SO-8 | | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 2406 | $0.83 |
| 517989 | XRA1201PIG24TR-F | TSSOP-24 | | 1.65V - 3.6V | I²C, SMBus | Yes | | 400kHz | 2047 | $1.16 |
| 134039 | TCA9539RTWR | WQFN-24-EP(4x4) | 16 | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 2025 | $0.85 |
| 57790 | PCF8574TS/3,118 | SSOP-20-4.4mm | 8 | 2.5V - 6V | I²C | Yes | 25mA sink / 300000mA source | 100kHz | 1809 | $1.73 |
| 86803 | PCA9554APW,118 | TSSOP-16 | 8 | 2.3V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 1796 | $0.77 |
| 129516 | PCA9539PW | TSSOP-24 | 16 | 2.3V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 1651 | $1.01 |
| 133183 | PCA9555DB,118 | SSOP-24-208mil | 16 | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 1611 | $1.23 |
| 86832 | PCF8574AT/3,518 | SOIC-16-300mil | 8 | 2.5V - 6V | I²C | No | 25mA sink / 300000mA source | 100kHz | 1553 | $1.50 |
| 2652295 | PCA9555APW,118 | TSSOP-24 | | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 1522 | $1.10 |
| 629440 | MCP23017T-E/SO | SOIC-28-300mil | | 1.8V - 5.5V | I²C | No | | 1.70MHz | 1361 | $1.68 |
| 561271 | XL8574T | SOP-16-300mil | | | | No | | | 1338 | $0.52 |
| 2669676 | PCA9500PW,118 | TSSOP-16 | | 2.5V - 3.6V | I²C, SMBus | No | 25mA sink / 100000mA source | 400kHz | 1328 | $1.62 |
| 161197 | PCA9534PW,118 | TSSOP-16 | 8 | 2.3V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 1205 | $1.38 |
| 544871 | TCA1116PWR | TSSOP-24 | | 1.65V - 5.5V | I²C | Yes | | 400kHz | 1132 | $0.63 |
| 2652321 | PCA9557DR | SOIC-16 | | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 1092 | $1.28 |
| 3202154 | PCA9535PWR | TSSOP-24 | | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 1065 | $1.73 |
| 5956642 | TCAL6416RTWR | WQFN-24(4x4) | | 1.08V - 3.6V | I²C | No | 25mA sink / 10mA source | 100kHz | 1062 | $1.64 |
| 47023 | MCP23017-E/SO | SOIC-28-300mil | 16 | 1.8V - 5.5V | I²C | Yes | 25mA sink / 25mA source | 1.70MHz | 988 | $1.53 |
| 506653 | MCP23017-E/SS | SSOP-28(5.3x10.2x0.65) | 16 | 1.8V - 5.5V | | Yes | | | 900 | $1.49 |
| 398072 | PCF8574AP | DIP-16 | 8 | 2.5V - 6V | I²C | No | 25mA sink / 300000mA source | 100kHz | 847 | $0.73 |
| 2669685 | PCA9505DGG,118 | TSSOP-56-6.1mm | | | | No | | | 831 | $3.98 |
| 629442 | MCP23S17T-E/ML | QFN-28-EP(6x6) | | 1.8V - 5.5V | SPI | No | | 10MHz | 829 | $1.81 |
| 561270 | XL8574AT | SOP-16-300mil | | | | No | | | 750 | $0.50 |
| 783615 | TCA9534PWR | TSSOP-16 | | 1.65V - 5.5V | I²C | Yes | 25mA sink / 10mA source | 400kHz | 724 | $0.53 |
| 398073 | PCF8574P | DIP-16 | 8 | 2.5V - 6V | I²C | Yes | 25mA sink / 300000mA source | 100kHz | 683 | $0.70 |
| 561268 | XD8574AP | DIP-16 | | | | No | | | 678 | $0.38 |
| 2834482 | HT8574BRWZ | SO-16-300mil | | | | No | | | 551 | $0.67 |
| 2652271 | PCF8574DWR | SOIC-16-300mil | | 2.5V - 6V | I²C | No | 25mA sink / 1mA source | 100kHz | 539 | $1.45 |
| 2655460 | PCA9575PW2,118 | TSSOP-28 | | 1.1V - 3.6V | I²C, SMBus | Yes | 3mA sink / 1mA source | 400kHz | 522 | $2.16 |
| 2652287 | PCAL6416AHF,128 | QFN-24-EP(4x4) | | | | No | | | 485 | $1.37 |
| 2652292 | PCA9535CPW,118 | TSSOP-24 | | | I²C, SMBus | Yes | | 400kHz | 474 | $0.71 |
| 526717 | PI4IOE5V6408ZTAEX | UQFN-16(1.8x2.6) | | 1.65V - 3.6V | I²C | No | | 1MHz | 472 | $0.64 |
| 2652270 | PCF8574RGTR | WQFN-16-EP(3x3) | | | | No | | | 441 | $1.40 |
| 206177 | TCA6408APWR | TSSOP-16 | 8 | 1.65V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 425 | $0.59 |
| 94361 | PCF8574APWR | ETSSOP-20 | 8 | 2.5V - 6V | I²C | Yes | 25mA sink / 300000mA source | 100kHz | 370 | $0.93 |
| 129522 | PCA9536D | SOIC-8 | 4 | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 351 | $0.88 |
| 148009 | MCP23S17-E/SS | SSOP-28-208mil | 16 | 1.8V - 5.5V | SPI | Yes | 25mA sink / 25mA source | 10MHz | 338 | $1.39 |
| 2652289 | PCA9538PW,118 | TSSOP-16 | | 2.3V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 334 | $0.97 |
| 144211 | MCP23008-E/ML | QFN-20-EP(4x4) | 8 | 1.8V - 5.5V | I²C | Yes | 25mA sink / 25mA source | 1.70MHz | 331 | $1.99 |
| 527428 | TCA9535RGER | VQFN-24-EP(4x4) | | 1.65V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 312 | $0.84 |
| 707086 | XD82C55-5 | DIP-40 | | | | No | | | 276 | $1.48 |
| 2649389 | PCA9536DGKR | VSSOP-8-0.65mm | | | | No | | | 273 | $0.95 |
| 152205 | MCP23S08-E/SO | SOIC-18-300mil | 8 | 1.8V - 5.5V | SPI | Yes | 25mA sink / 25mA source | 10MHz | 263 | $2.47 |
| 130203 | TCA6416APWR | TSSOP-24 | 16 | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 241 | $0.59 |
| 2652304 | PCA9535D,118 | SO-24-300mil | | | | No | | | 240 | $2.49 |
| 2867511 | TCA9554DWR | SOIC-16-300mil | | 1.65V - 5.5V | I²C | No | | 400kHz | 235 | $0.73 |
| 129354 | TCA9535RTWR | WQFN-24-EP(4x4) | 16 | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 228 | $0.94 |
| 2652275 | PCA9555RGER | VQFN-24-EP(4x4) | | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 225 | $1.31 |
| 882806 | PCA9534DWR | SOIC-16-300mil | | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 208 | $1.92 |
| 561269 | XD8574P | DIP-16 | | | | No | | | 202 | $0.52 |
| 465732 | TCA9555PWR | TSSOP-24 | | 1.65V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 189 | $0.57 |
| 2652338 | TCA9554ADBQR | SSOP-16-208mil | | | | No | | | 180 | $1.48 |
| 2865317 | TCA9555DBR | SSOP-24-208mil | 16 | 1.65V - 5.5V | I²C, SMBus | Yes | | 400kHz | 179 | $1.26 |
| 2652274 | PCA9555DWR | SOIC-24-300mil | | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 163 | $2.14 |
| 145413 | MCP23S17-E/SO | SOIC-28-300mil | 16 | 1.8V - 5.5V | SPI | No | 25mA sink / 25mA source | 10MHz | 161 | $1.37 |
| 707087 | XD71055 | DIP-40 | | | | No | | | 159 | $1.36 |
| 2867583 | PCF8574ADWR | SOIC-16-300mil | | 2.5V - 6V | I²C | No | 25mA sink / 1mA source | 100kHz | 152 | $0.89 |
| 2669657 | MAX7313ATG+T | QFN-24-EP(4x4) | | 2V - 3.6V | I²C, SMBus | Yes | | 400kHz | 150 | $4.10 |
| 2669689 | PCA9671PW,118 | TSSOP-24 | | 2.3V - 5.5V | I²C | No | 25mA sink / 100000mA source | 1MHz | 149 | $2.99 |
| 57543 | CH422G | SOP-16 | 8 | 3V - 5V | I²C, SPI | No | | 1MHz | 141 | $0.54 |
| 17230 | PCA9554PW,118 | TSSOP-16 | 8 | 2.3V - 5.5V | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 136 | $1.22 |
| 2873588 | PCA9554PWR | TSSOP-16 | | 2.3V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 119 | $1.76 |
| 2652278 | PCF8575DWR | SOIC-24-300mil | | 2.5V - 5.5V | I²C, SMBus | No | 25mA sink / 1mA source | 400kHz | 117 | $2.63 |
| 2869248 | TCA9555RGER | VQFN-24-EP(4x4) | | 1.65V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 116 | $1.81 |
| 2652326 | PI4IOE5V9535LEX | TSSOP-24 | | 2.3V - 5.5V | I²C | Yes | | 400kHz | 115 | $2.36 |
| 111663 | CH423S | SOP-28-300mil | 8 | 3V - 5V | I²C, SPI | No | | 1MHz | 111 | $0.34 |
| 2649390 | TCA6408ARSVR | UQFN-16(1.8x2.6) | 8 | | I²C, SMBus | Yes | | 400kHz | 111 | $0.50 |
| 148011 | MCP23008-E/SS | SSOP-20-208mil | 8 | 1.8V - 5.5V | I²C | Yes | 25mA sink / 25mA source | 1.70MHz | 110 | $1.90 |
| 2669664 | MAX7315AUE+T | TSSOP-16 | | 2V - 3.6V | I²C, SMBus | No | | 400kHz | 110 | $6.10 |
| 2669740 | PCAL9555APW,118 | TSSOP-24 | | 1.65V - 5.5V | I²C, SMBus | No | 25mA sink / 10mA source | 400kHz | 102 | $2.29 |
| 1522614 | MAX7315ATE+ | TQFN-16-EP(3x3) | | 2V - 3.6V | I²C, SMBus | Yes | | 400kHz | 90 | $5.45 |
| 2669667 | PCAL6524EVJ | VFBGA-36(2.6x2.6) | | 1.65V - 5.5V | I²C | No | | 1MHz | 90 | $1.76 |
| 2669742 | PCA9673PW,118 | TSSOP-24 | | 2.3V - 5.5V | I²C | Yes | 25mA sink / 100000mA source | 1MHz | 85 | $1.72 |
| 5125492 | XL9555QF24 | QFN-24 | 16 | | I²C, SMBus | Yes | 25mA sink / 10mA source | 400kHz | 83 | $0.56 |
| 219143 | MCP23009-E/MG | VQFN-16-EP(3x3) | 8 | 1.8V - 5.5V | I²C | Yes | 25mA sink / 25mA source | 3.40MHz | 82 | $2.43 |
