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SN74AVC16T245

Features: Control Inputs VIH/VILLevels Are Referenced to VCCAVoltageVCCIsolation Feature − If Either VCC Input Is at GND, Both Ports Are in the High-Impedance StateOvervoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data CommunicationsFully Configurable Dual-Rail Design Allows Each...

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SN74AVC16T245: Features: Control Inputs VIH/VILLevels Are Referenced to VCCAVoltageVCCIsolation Feature − If Either VCC Input Is at GND, Both Ports Are in the High-Impedance StateOvervoltage-Tolerant Inputs/...

SN74AVC16T245 Data Sheet

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Part Number:
SN74AVC16T245
Supply Ability:
5000

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Product Details

Description



Features:

Control Inputs VIH/VILLevels 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 PartialI/Os Are 4.6-V Tolerant
I/Os Are 4.6-V Tolerant
Latch-Up Performance Exceeds 100 mA Per
   JESD 78, Class II-Power-Down Mode Operation
ESD Protection Exceeds JESD 22
   −  4000-V Human-Body Model (A114-A)
   −  200-V Machine Model (A115-A)
   −  1000-V Charged-Device Model (C101)

 


Pinout

Connection Diagram




Specifications

Supply voltage range, VCCA and VCCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V
Input voltage range, VI(see Note 1):I/O ports (A port) . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 4.6 V
                                                          I/O ports (B port) . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to 4.6 V
                                                          Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V
Voltage range applied to any output in the high-impedance or power-off state, VO
(see Note 1):A port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   −0.5 V to 4.6 V
                     B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V
Voltage range applied to any output in the high or low state, VO
(see Notes 1 and 2):A port. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to VCCA+ 0.5 V 
                                             
                                 B port. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−0.5 V to VCCB+ 0.5 V
Input clamp current, IIK(VI< 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA
Output clamp current, IOK(VO< 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−50 mA
Continuous output current, IO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±50 mA
Continuous current through each VCCA, VCCB, and GND  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA
Package thermal impedance, JA(see Note 3):DGG package  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 °C/W
                                                                        DGV package   . . . . . . . . . . . . . . . . . . . . . . . . . . . .  58°C/W
                                                                        GQL/ZQL package  . . . . . . . . . . . . . . . . . . . . . . . . .  42°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .−65 to 150 


Description

This SN74AVC16T245 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 SN74AVC16T245 device is fully specified for partial-power-down applications using I off. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The SN74AVC16T245 VCC isolation feature ensures that if either VCC  input is at GND, both ports are in the high-impedance state.To ensure the high-impedance state during power up or power down, OEshould be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

 


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