PCF8574DW vs PCA9557D Comparação
Comparação detalhada lado a lado de PCF8574DW por Texas Instruments e PCA9557D por Texas Instruments. Compare especificações principais, parâmetros elétricos, encapsulamento, status do ciclo de vida, preços e disponibilidade para determinar o melhor componente para os requisitos do seu projeto.
Texas Instruments
PCA9557D - 8-Bit I2C/SMBus I/O Expander with Reset | TI (Tape & Reel)
PCA9557D ✗ Fim de vidaComparação de especificações
| Parâmetro | PCF8574DW | PCA9557D |
|---|---|---|
| Marca | Texas Instruments | Texas Instruments |
| Categoria | Interface ICs | Interface ICs |
| Status do ciclo de vida | Ativo | Fim de vida |
| Status do estoque | In Stock | In Stock |
| Preço unitário (USD) | $1,10 | $0,71 |
| 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 | — |
| Encapsulamento | 16-SOIC | 16-SOIC (DR, 7.5 mil pitch) |
| Contagem de pinos | 16 pins | — |
| Tipo de montagem | 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] | — |
| Temperatura de operação | [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) |
| Nível MSL | — | 1 (unlimited floor life) |
| Status RoHS | — | Compliant |
| Lead-Free | — | Yes |
| Configuration Registers | — | Input/output direction registers, polarity inversion |