Overview
The NLSX3018, produced by onsemi, is an 8-bit configurable dual-supply bidirectional level translator. This device is designed to translate logic signals between two different power supply rails, VCC and VL, without the need for a direction control pin. The VCC supply rail can be configured from 1.3 V to 4.5 V, while the VL supply rail ranges from 0.9 V to (VCC - 0.4) V. This allows for the translation of lower voltage logic signals on the VL side to higher voltage logic signals on the VCC side, and vice versa. The device features an Output Enable (EN) input that, when low, disables both I/O ports by putting them in a 3-state, significantly reducing supply currents from both VCC and VL.
Key Specifications
| Parameter | Min | Max | Unit | Condition |
|---|---|---|---|---|
| VCC Supply Voltage | 1.3 | 4.5 | V | |
| VL Supply Voltage | 0.9 | VCC - 0.4 | V | |
| Operating Temperature Range | -40 | +85 | °C | |
| Maximum Data Rate | 100 | Mb/s | For VL > 1.6 V | |
| Input Transition Rise/Fall Time | 0 | 10 | ns | VI, VIO from 30% to 70% of VCC; VCC = 3.3 V ± 0.3 V |
| I/O VCC Input HIGH Voltage | 0.8 * VCC | V | ||
| I/O VCC Input LOW Voltage | 0.2 * VCC | V | ||
| I/O VL Input HIGH Voltage | 0.8 * VL | V | ||
| I/O VL Input LOW Voltage | 0.2 * VL | V |
Key Features
- Wide High-Side VCC Operating Range: 1.3 V to 4.5 V and Wide Low-Side VL Operating Range: 0.9 V to (VCC - 0.4) V
- High-Speed with 100 Mb/s Guaranteed Data Rate for VL > 1.6 V
- Low Bit-to-Bit Skew
- Overvoltage Tolerant Enable and I/O Pins
- Non-preferential Powerup Sequencing
- Small packaging: 4.0 mm x 2.0 mm UDFN20
- Pb-Free Device
- Auto-sensing I/O ports without the need for a direction control pin
- Output Enable (EN) input for tri-state operation
Applications
- Mobile Phones
- PDAs
- Other Portable Devices
- Systems requiring bi-directional voltage level shifting between different supply voltages
- Applications such as SPI that use multiple uni-directional I/O lines
Q & A
- What is the primary function of the NLSX3018?
The NLSX3018 is an 8-bit configurable dual-supply bidirectional level translator, designed to translate logic signals between two different power supply rails, VCC and VL.
- What are the operating voltage ranges for VCC and VL?
VCC operates from 1.3 V to 4.5 V, and VL operates from 0.9 V to (VCC - 0.4) V.
- What is the maximum data rate supported by the NLSX3018?
The device supports a maximum data rate of 100 Mb/s for VL > 1.6 V.
- Does the NLSX3018 require a direction control pin?
No, the NLSX3018 does not require a direction control pin as it features auto-sensing I/O ports.
- What is the purpose of the Output Enable (EN) input?
The Output Enable (EN) input provides tri-state operation at the I/O pins, minimizing power consumption when driven low.
- Is the NLSX3018 Pb-free?
Yes, the NLSX3018 is a Pb-free device.
- What are the typical applications for the NLSX3018?
Typical applications include mobile phones, PDAs, other portable devices, and systems requiring bi-directional voltage level shifting.
- What is the operating temperature range for the NLSX3018?
The operating temperature range is from -40°C to +85°C.
- Can the NLSX3018 be used as a uni-directional translator?
Yes, the NLSX3018 can function as a non-inverting uni-directional translator, which is useful in applications like SPI.
- What are the input and output voltage levels for the I/O ports?
The input and output voltage levels for the I/O ports are referenced to VCC and VL, with specific high and low voltage thresholds as detailed in the specifications.
