PCF8574DW vs PCA9557D Ikinahambing
Detalyadong pagkakahiwalay na pagkakahambing ng PCF8574DW sa pamamagitan ng Texas Instruments at PCA9557D sa pamamagitan ng Texas Instruments. Ikinahambing ang mga pangunahing paglalarawan, mga tama ng elektriko, paakay, kalagayan ng buhay, presyo, at pagkakaroon upang makita ang pinakamahusay na komponente para sa iyong mga kinakailangang pang disenyo.
Texas Instruments
PCF8574DW - 8-Bit 100kHz I2C I/O Expander | Texas Instruments
PCF8574DW ✓ NakahandaTexas Instruments
PCA9557D - 8-Bit I2C/SMBus I/O Expander with Reset | TI (Tape & Reel)
PCA9557D ✗ Tapus ng BuhayPagsanggunian na paghahambing
| Parametro | PCF8574DW | PCA9557D |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Kategorya | Interface ICs | Interface ICs |
| Katayuan ng Lifecycle | Aktibo | Tapus ng Buhay |
| Product Type | 8-bit I2C I/O expander | — |
| Number of I/O Ports | 8 | — |
| I2C Maximum Clock Frequency | 100 kHz | — |
| Operating Supply Range | 2.5 V to 6 V VCC | — |
| Product-Page Supply Range | 2.5 V to 5.5 V | — |
| Interface | I2C two-line bidirectional bus | I2C, SMBus |
| Port Architecture | Quasi-bidirectional I/O | — |
| Interrupt Output | Open-drain | — |
| Standby Current | 10 µA maximum | — |
| Packhaging | 16-SOIC | 16-SOIC (DR, 7.5 mil pitch) |
| Bilang ng Pin | 16 pins | — |
| Uri ng Pagpapasok | Surface mount | Surface Mount |
| Application Category | I/O expander | — |
| Bus | I2C/SMBus | — |
| Port Names | P0 through P7 | — |
| Manufacturer | Texas Instruments | — |
| Compliance Information | [DATA_NEEDED: RoHS status] | — |
| Temperature na Operasyon | [DATA_NEEDED: operating temperature range] | -40 C to +85 C |
| Number of I/O Bits | — | 8 |
| Bus Frequency (Max) | — | 400 kHz |
| Supply Voltage (VCC) | — | 2.3 V to 5.5 V |
| Standby Current (Max) | — | 1 uA |
| Output Drive Current per Bit | — | [DATA_NEEDED: per-bit source/sink mA rating] |
| I/O Voltage Tolerance | — | 5.5 V tolerant |
| Reset Input | — | Active-low hardware RESET + software reset (general call) |
| Interrupt Output (INT) | — | Yes, open-drain |
| Slave Address Pins | — | A0, A1, A2 (3 pins, 8 addresses within family) |
| Level ng MSL | — | 1 (unlimited floor life) |
| Tindminan RoHS | — | Compliant |
| Lead-Free | — | Yes |
| Configuration Registers | — | Input/output direction registers, polarity inversion |