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SN74AVCH8T245

Features: Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage VCC Isolation Feature − If Either VCC Input Is at GND, All I/O Ports Are in the High-Impedance State Ioff Supports Partial-Power-Down Mode Operation Fully Configurable Dual-Rail Design Allows Each Port to Operate Over th...

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SN74AVCH8T245: Features: Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage VCC Isolation Feature − If Either VCC Input Is at GND, All I/O Ports Are in the High-Impedance State Ioff Supports Parti...

SN74AVCH8T245 Data Sheet

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Part Number:
SN74AVCH8T245
Supply Ability:
5000

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Product Details

Description



Features:

Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
VCC Isolation Feature − If Either VCC Input Is at GND, All I/O Ports Are in the High-Impedance State
Ioff Supports Partial-Power-Down Mode Operation
Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
I/Os Are 4.6-V Tolerant 
Max Data Rates:
    − 170 Mbps (1.2 V  (VCCA or VCCB)  3.3 V)
    − 320 Mbps (1.8 V  (VCCA or VCCB)  3.3 V)
Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
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)


Application

Audio                                www.ti.com/audio
Automotive                       www.ti.com/automotive
Broadband                        www.ti.com/broadband
Digital Control                   www.ti.com/digitalcontrol
Military                              www.ti.com/military
Optical Networking           www.ti.com/opticalnetwork
Security                            www.ti.com/security
Telephony                        www.ti.com/telephony
Video & Imaging               www.ti.com/video
Wireless                           www.ti.com/wireless


Pinout

Connection Diagram 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 VCCA, VCCB, or GND . . . . . . . . . . . . .  .. . . . . ±100 mA
Package thermal impedance, JA (see Note 3): DGV package . . . . . . . . . . 86°C/W
                                                                           PW package.  . . . . . . . . . 88°C/W
                                                                           RHL package. .  . . . . . ... . 43°C/W
Storage temperature range, Tstg  . . . .  . . . .  . . . . . . . .. . . . . . . . −65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
             2. The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed.
              3. The package thermal impedance is calculated in accordance with JESD 51-7.


Description

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVCH8T245 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 SN74AVCH8T245 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 SN74AVCH8T245 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. 




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