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 set low, disables both I/O ports and reduces supply currents significantly.
Key Specifications
| Parameter | Min | Typ | 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 | VL > 1.6 V | |||
| Input Transition Rise/Fall Time | 10 ns | VI, VIO from 30% to 70% of VCC; VCC = 3.3 V ± 0.3 V | |||
| DC Supply Current Through VCC | 100 mA | ||||
| DC Supply Current Through VL | 100 mA |
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
Applications
- Mobile phones
- PDAs
- Other portable devices
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?
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.
- 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.
- How does the Output Enable (EN) pin function?
The Output Enable (EN) pin, when set low, disables both I/O ports and reduces supply currents significantly. Normal translation operation occurs when the EN pin is set high.
- What are the key features of the NLSX3018?
The device features a wide operating voltage range, high-speed data rate, low bit-to-bit skew, overvoltage tolerant pins, non-preferential powerup sequencing, and small packaging.
- What types of devices typically use the NLSX3018?
The NLSX3018 is commonly used in mobile phones, PDAs, and other portable devices.
- Is the NLSX3018 Pb-free?
- What is the significance of the auto-sensing feature in the NLSX3018?
The auto-sensing feature allows the device to determine the direction of data flow without requiring a directional pin, making it highly versatile.
- How does the device handle power supply sequencing?
The NLSX3018 allows non-preferential powerup sequencing, meaning the device will not be damaged if the power supplies are not turned on in a specific order.
- What are the recommended decoupling capacitors for the power supplies?
For optimal performance, 0.01 to 0.1 μF decoupling capacitors are recommended for the VL and VCC power supplies.
