16-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs - SN74AVC16T245

SN74AVC16T245 (ACTIVE)

16-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs

Description

This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC16T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB 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 SN74AVC16T245 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 the buses are effectively isolated.

The SN74AVC16T245 is designed so that the control pins (1DIR, 2DIR, 1OE\, and 2OE\) are supplied by VCCA.

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

The VCC isolation feature ensures that if either VCC input is at GND, then 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 VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Features

  • Control Inputs VIH/VIL Levels are Referenced to VCCA Voltage
  • VCC Isolation Feature - If Either VCC 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
  • Ioff Supports Partial-Power-Down Mode Operation
  • I/Os Are 4.6-V Tolerant
  • 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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Parametrics Compare all products in Dual Supply Translator

 
Technology Family
Bits (#)
VCCA (Min) (V)
VCCA (Max) (V)
VCCB (Min) (V)
VCCB (Max) (V)
tpd @ Nom Voltage (Max) (ns)
Max Drive (mA)
Schmitt Trigger
Rating
Operating Temperature Range (C)
Approx. Price (US$)
Pin/Package
SN74AVC16T245 SN74AVC16T245-Q1 SN74AVCH16T245
AVC     AVC     AVC    
16     16     16    
1.2     1.2     1.2    
3.6     3.6     3.6    
1.2     1.2     1.2    
3.6     3.6     3.6    
5     5     2.7    
12     12     12    
No     No     No    
Catalog     Automotive     Catalog    
-40 to 85     -40 to 125     -40 to 85    
1.50 | 1ku     1.75 | 1ku     1.50 | 1ku    
48TSSOP
48TVSOP
56BGA MICROSTAR JUNIOR    
48TVSOP     48TSSOP
48TVSOP
56BGA MICROSTAR JUNIOR    

Other qualified versions of SN74AVC16T245

Version Part Number Definition
Automotive SN74AVC16T245-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
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