This 2-bit non-inverting bus transceiver uses two separate configurable power-supply rails. The A ports are designed to track VCCA and accepts any supply voltage from 1.2 V to 3.6 V. The B ports are designed to track VCCB and accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation and level-shifting between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVC2T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR pin) input activate either the B-port outputs or the A-port outputs. The device transmits data from the A bus to the B bus when the B-port outputs are activated and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic HIGH or LOW level applied to prevent excess leakage current on the internal CMOS structure.
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Part number | Order | Technology Family | Application | Bits (#) | High input voltage (Min) (Vih) | High input voltage (Max) (Vih) | Output voltage (Min) (V) | Output voltage (Max) (V) | IOH (Max) (mA) | IOL (Max) (mA) | Package Group | Rating |
---|---|---|---|---|---|---|---|---|---|---|---|---|
SN74AVC2T45 |
|
AVC | I2S | 2 | 0.78 | 3.6 | 1.2 | 3.6 | -12 | 12 |
DSBGA | 8
SM8 | 8 VSSOP | 8 |
Catalog |
SN74AVC2T244 |
|
AVC | 2 | 0.81 | 3.6 | 0.9 | 3.6 | -24 | 24 |
X2SON | 8
X2SON | 8 |
Catalog | |
SN74AVC2T245 |
|
AVC | JTAG | 2 | 0.78 | 3.6 | 1.2 | 3.6 | -12 | 12 | UQFN | 10 | Catalog |
SN74AVC2T45-Q1 |
|
AVC |
GPIO
I2S |
2 | 0.78 | 3.6 | 1.2 | 3.6 | -12 | 12 | VSSOP | 8 | Automotive |
SN74AVCH2T45 |
|
AVC |
GPIO
I2S |
2 | 0.8 | 3.6 | 1.2 | 3.6 | -12 | 12 |
DSBGA | 8
SM8 | 8 VSSOP | 8 |
Catalog |
SN74AXC1T45 |
|
AXC | GPIO | 1 | 0.455 | 3.6 | 0.65 | 3.6 | -12 | 12 |
SC70 | 6
SOT-23 | 6 SOT-5X3 | 6 X2SON | 6 X2SON | 6 |
Catalog |
SN74AXC2T45 |
|
AXC | UART | 2 |