General description

The NTS0308E is an 8-bit, dual supply translating transceiver family with auto direction

sensing, that enables bidirectional voltage level translation. It features eight 1-bit inputoutput ports (A and B), one output enable input (OE) and two supply pins (VCC(A) and VCC(B)). VCC(A) can be supplied at any voltage between 0.95 V and 3.6 V. VCC(B) can be supplied at any voltage between 1.65 V and 5.5 V. This flexibility makes the device suitable for translating between any of the voltage nodes (0.95 V, 1.2 V, 1.8 V, 2.5 V, 3.3V and 5.0 V). VCC(A) must be ≤ VCC(B) to ensure proper operation.

Pins A and OE are referenced to VCC(A) and pin B is referenced to VCC(B). A LOW level at pin OE causes the outputs to assume a high-impedance OFF-state.

Features and benefits

• Wide supply voltage range:

– VCC(A): 0.95 V to 3.6 V and VCC(B): 1.65 V to 5.5 V; VCC(A) must be ≤ VCC(B)

• No power-sequencing required

• Maximum data rate

– Open-drain: 2 Mbps

– Push-pull: 20 Mbps

• Longer one-shot pulse for driving larger capacitive loads with much reduced ringing

and overshoot

• A-side and OE inputs accept voltages up to 3.6 V and are 3.6 V tolerant

• B-side inputs accept voltages up to 5.5 V and are 5.5 V tolerant

• ESD protection:

– IEC 61000-4-2 Class 4, 8 kV contact for B-side port

– HBM JESD22-A114E Class 2 exceeds 2000 V for both ports

– CDM JESD22-C101E exceeds 1000 V for both ports

• Latch-up performance exceeds 100 mA per JESD 78B Class II

• Package options: TSSOP20

• Specified from -40 °C to +125 °C

Applications

• I2C/SMBus, UART

• GPIO