Description

SN74AVC20T245ZQLR: 2.4GHz high-speed wireless transceiver chip IC with low performance and low power consumption

Package: BGA

Mfr. Part#: SN74AVC20T245ZQLR

Mfr.: TI
Datasheet: (e-mail or chat us for PDF file)

ROHS Status: 

Quality: 100% Original

Warranty: 180 days
 

This 20-bit noninverting bus transceiver uses two separate configurable power-supply rails.

The SN74AVC20T245 is optimized to operate with V_CCA/V_CCB set at 1.4 V to 3.6 V. It is operational with V_CCA/V_CCB as low as 1.2 V. The A port is designed to track V_CCA. V_CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V_CCB. V_CCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC20T245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable OE input can be used to disable the outputs so that the buses are effectively isolated.

The SN74AVC20T245 is designed so that the control (1DIR, 2DIR, 1OE, and 2OE) inputs are supplied by V_CCA.

This device is fully specified for partial-power-down applications using I_off. The I_off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The V_CC isolation feature ensures that if either V_CC input is at GND, both ports are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Key Features

• Control Inputs V_IH/V_IL Levels are Referenced to V_CCA Voltage
• V_CC Isolation Feature - If Either V_CC Input Is at GND, Both Ports Are in the High-Impedance State
• Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
• Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
• I_off Supports Partial-Power-Down Mode Operation
• I/Os Are 4.6-V Tolerant
• Max Data Rates
  • 380 Mbps (1.8-V to 3.3-V Translation)
  • 260 Mbps (1.8-V to 3.3-V Translation)
  • 260 Mbps (Translate to 2.5 V)
  • 210 Mbps (Translate to 1.8 V)
  • 120 Mbps (Translate to 1.5 V)
  • 100 Mbps (Translate to 1.2 V)
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
  • 8000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)
  • 1000-V Charged-Device Model (C101)

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