TXB0302 Texas instruments

TXB0302

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TXB0302

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Описание

This 2-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 0.9 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 0.9 V to 3.6 V. This allows for low-voltage bidirectional translation between 1-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V and 3.3-V voltage nodes. For the TXB0302, when the output-enable (OE) input is low, all outputs are placed in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. The TXB0302 is designed so that the OE input circuit is 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.

Fully Symmetric Supply Voltages.
0.9 V to 3.6 V on A Port and 0.9 V to 3.6 V
V_CC Isolation Feature — If Either V_CC
Input Is at GND, All Outputs Are in the High-Impedance State
OE Input Circuit Referenced to V_CCA
Low Power Consumption, 5-µA Max I_CC
Ioff Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 4000-V Human-Body Model (A114-B)
- 1000-V Charged-Device Model (C101)

Technology family	TXB
Bits (#)	2
Data rate (max) (MBits)	140
High input voltage (min) (V)	0.81
High input voltage (max) (V)	3.6
Vout (min) (V)	0.9
Vout (max) (V)	3.6
IOH (max) (mA)	-0.02
IOL (max) (mA)	0.02
Supply current (max) (µA)	10
Features	Edge rate accelerator, Integrated pullup resistors, Output enable, Partial power down (Ioff), Vcc isolation
Input type	Standard CMOS
Output type	3-State, CMOS, Push-Pull
Rating	Catalog
Operating temperature range (°C)	-40 to 85