TXB0108 Texas instruments

TXB0108

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TXB0108

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Описание

This 8-bit noninverting translator uses two separate configurable power-supply rails. 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 1.65 V to 5.5 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, 3.3-V, and 5-V voltage nodes. VCCA should not exceed VCCB.When the output-enable (OE) input is low, all outputs are placed in the high-impedance state.The TXB0108 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.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.

1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V on B Port (V_CCA ≤ V_CCB)
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, 4-µA Max I_CC
I_off Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- A Port
  - 2000-V Human-Body Model (A114-B)
  - 1000-V Charged-Device Model (C101)
- B Port
  - ±15-kV Human-Body Model (A114-B)
  - ±8-kV Human-Body Model (A114-B) (YZP Package Only)
  - 1000-V Charged-Device Model (C101)

Technology family	TXB
Applications	GPIO
Bits (#)	8
Data rate (max) (MBits)	100
High input voltage (min) (V)	0.78
High input voltage (max) (V)	5.5
Vout (min) (V)	1.2
Vout (max) (V)	5.5
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