Best quality RF Transceiver - PCA9548APW,118 Circuitos integrados de interruptor multiplexor 8-CH I2C SWITCH W/RESET – Shinzo
Best quality RF Transceiver - PCA9548APW,118 Circuitos integrados de interruptor multiplexor 8-CH I2C SWITCH W/RESET – Shinzo Detail:
♠ Product Description
| Atributo del producto | Valor de atributo |
| Fabricante: | NXP |
| Categoría de producto: | Circuitos integrados de interruptor multiplexor |
| RoHS: | Detalles |
| Serie: | PCA9548A |
| Producto: | Multiplexers |
| Estilo de montaje: | SMD/SMT |
| Paquete / Cubierta: | TSSOP-24 |
| Número de canales: | 8 Channel |
| Configuración: | 2 x 8:1 |
| Voltaje de alimentación – Mín.: | 2.3 V |
| Voltaje de alimentación – Máx.: | 5.5 V |
| Mínimo voltaje de alimentación doble: | - |
| Máximo voltaje de alimentación doble: | - |
| Resistencia en modo encendido – Máx.: | 24 Ohms |
| Tiempo encendido – Máx.: | 300 ns |
| Tiempo apagado – Máx.: | 300 ns |
| Temperatura de trabajo mínima: | - 40 C |
| Temperatura de trabajo máxima: | + 85 C |
| Empaquetado: | Reel |
| Empaquetado: | Cut Tape |
| Empaquetado: | MouseReel |
| Ancho de banda: | 0.4 MHz |
| Marca: | NXP Semiconductors |
| Altura: | 0.95 mm |
| Longitud: | 7.9 mm |
| Voltaje de alimentación operativo: | 2.3 V to 5.5 V |
| Dp – Disipación de potencia : | 400 mW |
| Tipo de producto: | Multiplexer Switch ICs |
| Tiempo de retardo de propagación: | 0.3 ns |
| Cantidad de empaque de fábrica: | 2500 |
| Subcategoría: | Switch ICs |
| Ancho: | 4.5 mm |
| Alias de las piezas n.º: | 935275816118 |
| Peso de la unidad: | 0.006399 oz |
PCA9548A 8-channel I2C-bus switch with reset
The PCA9548A is an octal bidirectional translating switch controlled via the I2C-bus. The SCL/SDA upstream pair fans out to eight downstream pairs, or channels. Any individual SCx/SDx channel or combination of channels can be selected, determined by the contents of the programmable control register. An active LOW reset input allows the PCA9548A to recover from a situation where one of the downstream I2C-buses is stuck in a LOW state.
Pulling the RESET pin LOW resets the I2C-bus state machine and causes all the channels to be deselected as does the internal Power-on reset function. The pass gates of the switches are constructed such that the VDD pin can be used to limit the maximum high voltage which will be passed by the PCA9548A. This allows the use of different bus voltages on each pair, so that 1.8 V or 2.5 V or 3.3 V parts can communicate with 5 V parts without any additional protection.
External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 6 V tolerant.
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