PCF8574DW vs PCA8574D Comparação
Comparação detalhada lado a lado de PCF8574DW por Texas Instruments e PCA8574D por NXP Semiconductors. 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.
Comparação de especificações
| Parâmetro | PCF8574DW | PCA8574D |
|---|---|---|
| Marca | Texas Instruments | NXP Semiconductors |
| Categoria | Interface ICs | USB Interface ICs |
| Status do ciclo de vida | Ativo | Fim de vida |
| Status do estoque | In Stock | In Stock |
| Preço unitário (USD) | $1,10 | $0,74 |
| Product Type | 8-bit I2C I/O expander | — |
| Number of I/O Ports | 8 | 8 quasi-bidirectional |
| 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-bus (SCL, SDA) |
| Port Architecture | Quasi-bidirectional I/O | — |
| Interrupt Output | Open-drain | Yes, open-drain INT with latched flag |
| Standby Current | 10 µA maximum | — |
| Encapsulamento | 16-SOIC | SO16 (SOIC-16, SOT109-1) |
| 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] | [DATA_NEEDED: operating temperature range] |
| Função | — | Remote 8-bit I/O expander for I2C-bus with interrupt |
| I2C Bus Speed | — | 400 kHz |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| Hardware Address Pins | — | 3 (A0, A1, A2) - 8 addresses |
| Power-on Reset | — | Yes, ports initialized high (input mode) |
| Ordering Suffixes | — | PCA8574D,512 (Reel 13 inch), PCA8574D,518 (Reel 7 inch) |
| Max Devices per Bus | — | 8 (PCA8574) or 16 with PCA8574A (128 I/Os total) |
| LED Driving | — | Direct drive, current-sink mode per family datasheet |
| Status RoHS | — | [DATA_NEEDED: RoHS status] |
| Status do ciclo de vida | — | End of Life (per NXP product page) |