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PCA9518DBQR

PCA9518DBQR
Mfr. #:
PCA9518DBQR
Descripción:
Interface - I/O Expanders Expandable 5-Ch I2C Hub
Ciclo vital:
Nuevo de este fabricante.
Ficha de datos:
PCA9518DBQR Ficha de datos
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Más información:
PCA9518DBQR más información PCA9518DBQR Product Details
Atributo del producto
Valor de atributo
Fabricante:
Instrumentos Texas
Categoria de producto:
Interfaz: expansores de E / S
RoHS:
Y
Número de E / S:
5 I/O
Frecuencia máxima de reloj:
400 kHz
Voltaje de suministro operativo:
3 V to 3.6 V
Temperatura mínima de funcionamiento:
- 40 C
Temperatura máxima de funcionamiento:
+ 85 C
Estilo de montaje:
SMD / SMT
Paquete / Caja:
QSOP-20
Embalaje:
Carrete
Características:
Restablecer pin
Serie:
PCA9518
Marca:
Instrumentos Texas
Familia lógica:
PCA
Sensible a la humedad:
Yes
Tipo de producto:
Expansores de E / S
Cantidad de paquete de fábrica:
2500
Subcategoría:
Circuitos integrados de interfaz
Unidad de peso:
0.004437 oz
Tags
PCA9518DB, PCA9518D, PCA9518, PCA951, PCA95, PCA9, PCA
Service Guarantees

We guarantee 100% customer satisfaction.

Quality Guarantees

We provide 90-360 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.
Our experienced sales team and tech support team back our services to satisfy all our customers.

we buy and manage excess electronic components, including excess inventory identified for disposal.
Email us if you have excess stock to sell.

Email: [email protected]

Step1: Vacuum Packaging with PL
Step1:
Vacuum Packaging with PL
Step2: Anti-Static Bag
Step2:
Anti-Static Bag
Step3: Packaging Boxes
Step3:
Packaging Boxes
    K***s
    K***s
    LT

    ok

    2019-01-08
    S***n
    S***n
    KG

    Everything corresponds to the description. it came in time.

    2019-02-06
    A***l
    A***l
    RU

    Two months to moscow

    2019-04-10
    E**x
    E**x
    RO

    Super !

    2019-03-18
***as Instruments
5-channel bidirectional 3- to 3.6-V expandable 400-kHz I2C/SMBus buffer/hub 20-SSOP -40 to 85
***ical
I2C Buffer/Repeater 3.3V 20-Pin SSOP T/R
***i-Key
IC INTERFACE SPECIALIZED 20QSOP
***i-Key Marketplace
PCA9518 EXPANDABLE FIVE-CHANNEL
***
The PCA9518 is an expandable five-channel bidirectional buffer for I2C and SMBus applications. The I2C protocol requires a maximum bus capacitance of 400 pF, which is derived from the number of devices on the I2C bus and the bus length. The PCA9518 overcomes this restriction by separating and buffering the I2C data (SDA) and clock (SCL) lines into multiple groups of 400-pF segments. Any segment-to-segment transition sees only one repeater delay. Each PCA9518 can communicate with other PCA9518 hubs through a 4-wire inter-hub expansion bus. Using multiple PCA9518 parts, any width hub (in multiples of five) can be implemented using the expansion pins, with only one repeater delay and no functional degradation of the system performance.
***OMO Electronic
The PCA9518 does not support clock stretching across the repeater.
***as Instr.
The device is designed for 3-V to 3.6-V VCC operation, but it has 5-V tolerant I2C and enable (EN) input pins. This feature allows for translation from 3 V to 5 V between a master and slave. The enable pin also can be used to electrically isolate a repeater segment from the I2C bus. This is useful in cases where one segment needs to run at 100 kHz while the rest of the system is at 400 kHz. If the master is running at 400 kHz, the maximum system operating frequency may be less than 400 kHz, because of the delays added by the repeater.
***ASIN
The output low levels for each internal buffer are approximately 0.5 V, but the input voltage of each internal buffer must be 70 mV or more below the output low level, when the output internally is driven low. This prevents a lockup condition from occurring when the input low condition is released.
***as Instruments Inc.
A PCA9518 cluster cannot be put in series with a repeater such as the PCA9515 or another PCA9518 cluster, as the design does not allow this configuration. Multiple PCA9518 devices can be grouped with other PCA9518 devices into any size cluster using the EXPxxxx pins that allow the I2C signals to be sent or received from one PCA9518 to another PCA9518 within the cluster. Because there is no direction pin, slightly different valid low voltage levels are used to avoid lockup conditions between the input and the output of individual repeaters in the cluster. A valid low applied at the input of any of the PCA9518 devices is propagated as a buffered low, with a slightly higher value, to all enabled outputs in the PCA9518 cluster. When this buffered low is applied to another repeater or separate PCA9518 cluster (not connected via the EXPxxxx pins) in series, the second repeater or PCA9518 cluster does not recognize it as a regular low and does not propagate it as a buffered low again. For this reason, the PCA9518 should not be put in series with other repeater or PCA9518 clusters.
***AS INS
The PCA9518 has five multidirectional open-drain buffers designed to support the standard low-level-contention arbitration of the I2C bus. Except during arbitration, the PCA9518 acts like a pair of noninverting open-drain buffers, one for SDA and one for SCL.
***XS
There is an internal power-on-reset circuit (VPOR) that allows for an initial condition and the ramping of VCC to set the internal logic.
***as Instruments (TI)
As with the standard I2C system, pullup resistors are required on each SDAn and SCLn to provide the logic high levels on the buffered bus. The size of these pullup resistors depends on the system, but it is essential that each side of the repeater have a pullup resistor. The device is designed to work with standard-mode and fast-mode I2C devices in addition to SMBus devices. Standard-mode I2C devices only specify 3 mA in a generic I2C system where standard-mode devices and multiple masters are possible.
PCA9518 12C Hub
OMO Electronic' PCA9518 expandable five-channel I2C protocol requires a maximum bus capacitance of 400pF, which is derived from the number of devices on the I2C bus and the bus length. Each PCA9518 can communicate with other PCA9158 hubs through a 4-wire inter-hub expansion bus. Using multiple PCA9518 parts, any width hub can be implemented using the expansion pins, with only one repeater delay and no functional degradation of the system performance. The low-power device is ideal for telecom, server, and computing applications.
Parte # Descripción Valores Precio
PCA9518DBQR
DISTI # 296-22764-1-ND		IC EXPANDABLE 5CH I2C HUB 20QSOP
RoHS: Compliant
Min Qty: 1
Container: Cut Tape (CT)		2393In Stock
  • 1000:$0.9857
  • 500:$1.1897
  • 100:$1.4480
  • 10:$1.8010
  • 1:$2.0100
PCA9518DBQR
DISTI # 296-22764-6-ND		IC EXPANDABLE 5CH I2C HUB 20QSOP
RoHS: Compliant
Min Qty: 1
Container: Digi-Reel®		2393In Stock
  • 1000:$0.9857
  • 500:$1.1897
  • 100:$1.4480
  • 10:$1.8010
  • 1:$2.0100
PCA9518DBQR
DISTI # 296-22764-2-ND		IC EXPANDABLE 5CH I2C HUB 20QSOP
RoHS: Compliant
Min Qty: 2500
Container: Tape & Reel (TR)		Temporarily Out of Stock
  • 5000:$0.8580
  • 2500:$0.8910
PCA9518DBQR
DISTI # PCA9518DBQR		I2C Hub 20-Pin SSOP T/R - Tape and Reel (Alt: PCA9518DBQR)
RoHS: Compliant
Min Qty: 2500
Container: Reel		Americas - 0
  • 2500:$0.9569
  • 5000:$0.9109
  • 10000:$0.8809
  • 15000:$0.8509
  • 25000:$0.8279
PCA9518DBQR
DISTI # PCA9518DBQR		I2C Hub 20-Pin SSOP T/R (Alt: PCA9518DBQR)
RoHS: Compliant
Min Qty: 2500
Container: Tape and Reel		Europe - 0
  • 2500:€1.1069
  • 5000:€0.9789
  • 10000:€0.8769
  • 15000:€0.8339
  • 25000:€0.7949
PCA9518DBQRG4
DISTI # PCA9518DBQRG4		I2C Hub 20-Pin SSOP T/R (Alt: PCA9518DBQRG4)
RoHS: Compliant
Min Qty: 2500
Container: Tape and Reel		Europe - 0
    PCA9518DBQRExpandable Five-Channel I2C Hub4950
    • 1000:$0.7500
    • 750:$0.8200
    • 500:$1.0000
    • 250:$1.1900
    • 100:$1.2900
    • 25:$1.4800
    • 10:$1.5900
    • 1:$1.7800
    PCA9518DBQRInterface Circuit, PDSO20
    RoHS: Compliant    		9353
    • 1000:$0.8700
    • 500:$0.9100
    • 100:$0.9500
    • 25:$0.9900
    • 1:$1.0700
    PCA9518DBQR
    DISTI # 595-PCA9518DBQR    		Interface - I/O Expanders Expandable 5-Ch I2C Hub
    RoHS: Compliant    		2500
    • 1:$1.9500
    • 10:$1.6500
    • 100:$1.3200
    • 500:$1.1600
    • 1000:$0.9570
    • 2500:$0.8910
    • 5000:$0.8580
    PCA9518DBQRG4
    DISTI # 595-PCA9518DBQRG4    		Interface - I/O Expanders Expandable 5-Ch I2C Hub
    RoHS: Compliant    		0
      Imagen Parte # Descripción
      SN74HC04N

      Mfr.#: SN74HC04N

      OMO.#: OMO-SN74HC04N

      		 Inverters Hex
      SN74AUC1G86DCKR

      Mfr.#: SN74AUC1G86DCKR

      OMO.#: OMO-SN74AUC1G86DCKR

      		 Logic Gates Single 2-Input Excl- OR Gate
      SN74CBT3125PWR

      Mfr.#: SN74CBT3125PWR

      OMO.#: OMO-SN74CBT3125PWR

      		 Digital Bus Switch ICs Quad FET
      SN74HC04N

      Mfr.#: SN74HC04N

      OMO.#: OMO-SN74HC04N-TEXAS-INSTRUMENTS

      		 Inverters Hex
      SN74AUC1G86DCKR

      Mfr.#: SN74AUC1G86DCKR

      OMO.#: OMO-SN74AUC1G86DCKR-TEXAS-INSTRUMENTS

      		 Logic Gates Single 2-Input Excl- OR Gate
      SN74CBT3125PWR

      Mfr.#: SN74CBT3125PWR

      OMO.#: OMO-SN74CBT3125PWR-TEXAS-INSTRUMENTS

      		 Digital Bus Switch ICs Quad FET
      Disponibilidad
      Valores:
      Available
      En orden:
      1985
      Ingrese la cantidad:
      El precio actual de PCA9518DBQR es solo de referencia, si desea obtener el mejor precio, envíe una consulta o envíe un correo electrónico directo a nuestro equipo de ventas [email protected]
      Precio de referencia (USD)
      Cantidad
      Precio unitario
      Ext. Precio
      1
      1,95 US$
      1,95 US$
      10
      1,65 US$
      16,50 US$
      100
      1,32 US$
      132,00 US$
      500
      1,16 US$
      580,00 US$
      1000
      0,96 US$
      957,00 US$
      Debido a la escasez de semiconductores a partir de 2021, el precio inferior es el precio normal antes de 2021. Envíe una consulta para confirmar.
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