This single-bit noninverting bus transceiver uses two separate configurable power-supply rails. TheSN74AVC1T45(购买请点击) is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB aslow 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. TheB port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universallow-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 SN74AVC1T45(购买请点击) is designed for asynchronous communication between two data buses. The logic levels ofthe direction-control (DIR) input activate either the B-port outputs or the A-port outputs. The device transmits datafrom the A bus to the B bus when the B-port outputs are activated and from the B bus to the A bus when theA-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logicHIGH or LOW level applied to prevent excess ICC and ICCZ.
The SN74AVC1T45(购买请点击) is designed so that the DIR input is powered 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.
1FEATURES
Available in the Texas Instruments NanoFree™ · Typical Max Data Rates;
Package – 500 Mbps (1.8-V to 3.3-V Translation)SN74AVC1T45(购买请点击) ;
Fully Configurable Dual-Rail Design Allows – 320 Mbps (<1.8-V to 3.3-V Translation);
Each Port to Operate Over the Full 1.2-V to – 320 Mbps (Translate to 2.5 V or 1.8 V);
3.6-V Power-Supply RangeSN74AVC1T45(购买请点击) ;
– 280 Mbps (Translate to 1.5 V) · VCC Isolation Feature - If Either VCC Input Is atGND, Both Ports Are in the High-Impedance – 240 Mbps (Translate to 1.2 V);
State Latch-Up Performance Exceeds 100 mA Per;
DIR Input Circuit Referenced to VCCA JESD 78, Class II · ±12-mA Output Drive at 3.3 V · ESD Protection Exceeds JESD 22I/Os Are 4.6-V Tolerant – 2000-V Human-Body Model (A114-A);
Ioff Supports Partial-Power-Down Mode – 200-V Machine Model (A115-A)。
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