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TCA9548ARGER
TCA9548ARGER
TCA9548ARGER
TCA9548ARGER

TCA9548ARGER

NT$ 45


產品貨號

368010102148

品牌

原廠貨號

595-TCA9548ARGERQ1

數量

  庫存量:49

關鍵字

運送方式

7-11取貨付款 郵寄(單一運費) 宅配 宅配貨到付款 外島郵寄 順豐快遞 順豐快遞貨到付款

商品簡介

TCA9548A具有八個雙向可以通過以下方式控制開關的翻譯I2C匯流排。 SCL / SDA上游對散開到八個下游對或通道。 任何 SCn / SDn通道或通道組合是可以選擇,由內容決定可編程控制暫存器。 這些下游通道可用於解析I2C從站地址衝突問題。 例如,如果八個相同的數字應用中需要溫度感測器,每個通道可以連接一個感測器:0-7。

系統主控器可以將TCA9548A重置為發生超時或其他不當操作斷言RESET輸入為低電壓。同樣,上電複位取消選擇所有通道並初始化 I2C / SMBus狀態。 斷言復位導致相同的重置和初始化發生無需關閉部分電源。 這樣可以恢復下游I2C匯流排之一是否應在低狀態。

開關的通過構造如下:VCC引腳可用於限制最大值,TCA9548A通過的高電壓。 限制最大高壓允許使用每對上的匯流排電壓不同,因此1.8V,2.5- V或3.3V元件可以與5V元件通信,沒有任何其他保護。 外部上拉電阻將匯流排上拉至所需的電壓水平每個頻道。所有 I/O 引腳均允許5V電壓。


商品特色

  • 1-to-8 Bidirectional translating switches
  • I2C Bus and SMBus compatible
  • Active-low reset input
  • Three address pins, allowing up to eight TCA9548A devices on the I2C bus
  • Channel selection through an I2C Bus, in any combination
  • Power up with all switch channels deselected • Low RON switches
  • Allows voltage-level translation between 1.8-V, 2.5-V, 3.3-V, and 5-V buses
  • No glitch on power up
  • Supports hot insertion
  • Low standby current
  • Operating power-supply voltage range of 1.65 V to 5.5 V
  • 5-V Tolerant inputs
  • 0- to 400-kHz Clock frequency
  • Latch-up performance exceeds 100 mA Per JESD 78, class II
  • ESD Protection exceeds JESD 22
      – ±2000-V Human-body model (A114-A)
      – 200-V Machine model (A115-A)
      – ±1000-V Charged-device model (C101)

商品應用

  • 伺服器
  • 路由器(電信交換裝置)
  • 工廠自動化
  • 具有I2C從站地址衝突的產品(例如 多個相同溫度感測器)

商品規格

TCA9548ARGER


PIN TYPE Description
NAME TSSOP
(PW)
QFN
(RGE)
A0 1 22 I Address input 0. Connect directly to VCC or ground
A1 2 23 I Address input 1. Connect directly to VCC or ground
A2 21 18 I Address input 2. Connect directly to VCC or ground
GND 12 9 - Ground
RESET 3 24 I Active-low reset input. Connect to VCC or VDPUM
(1) through a pull-up resistor, if not used
SD0 4 1 I/O Serial data 0. Connect to VDPU0
(1) through a pull-up resistor
SC0 5 2 I/O Serial clock 0. Connect to VDPU0
(1) through a pull-up resistor
SD1 6 3 I/O Serial data 1. Connect to VDPU1
(1) through a pull-up resistor
SC1 7 4 I/O Serial clock 1. Connect to VDPU1
(1) through a pull-up resistor
SD2 8 5 I/O Serial data 2. Connect to VDPU2
(1) through a pull-up resistor
SC2 9 6 I/O Serial clock 2. Connect to VDPU2
(1) through a pull-up resistor
SD3 10 7 I/O Serial data 3. Connect to VDPU3
(1) through a pull-up resistor
SC3 11 8 I/O Serial clock 3. Connect to VDPU3
(1) through a pull-up resistor
SD4 13 10 I/O Serial data 4. Connect to VDPU4
(1) through a pull-up resistor
SC4 14 11 I/O Serial clock 4. Connect to VDPU4
(1) through a pull-up resistor
SD5 15 12 I/O Serial data 5. Connect to VDPU5
(1) through a pull-up resistor
SC5 16 13 I/O Serial clock 5. Connect to VDPU5
(1) through a pull-up resistor
SD6 17 14 I/O Serial data 6. Connect to VDPU6
(1) through a pull-up resistor
SC6 18 15 I/O Serial clock 6. Connect to VDPU6
(1) through a pull-up resistor
SD7 19 16 I/O Serial data 7. Connect to VDPU7
(1) through a pull-up resistor
SC7 20 17 I/O Serial clock 7. Connect to VDPU7
(1) through a pull-up resistor
SCL 22 19 I/O Serial clock bus. Connect to VDPUM
(1) through a pull-up resistor
SDA 23 20 I/O Serial data bus. Connect to VDPUM
(1) through a pull-up resistor
VCC 24 21 Power Supply voltage

(1) VDPUX is the pull-up reference voltage for the associated data line. VDPUM is the master I2C reference voltage and VDPU0-VDPU7 are the slave channel reference voltages.


文件下載

Datasheet


出貨清單

  • TCA9548ARGER x 1