Overview
The NLSX3018 is an 8-bit configurable dual-supply bidirectional level translator produced by onsemi. 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 operate from 1.3 V to 4.5 V, while the VL supply rail can operate 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 and reduces supply currents significantly.
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 | 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 |
| Output Enable (EN) Voltage | GND | 4.5 | 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 that translates 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 operate from 1.3 V to 4.5 V, while the VL supply rail can operate 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 low, disables both I/O ports and reduces supply currents significantly. Normal translation operation occurs when the EN pin is at a logic high level.
- What are the recommended power supply guidelines for the NLSX3018?
The VL supply should be less than or equal to the value of the VCC minus 0.4 V. Decoupling capacitors of 0.01 to 0.1 μF are recommended for optimal performance.
- Is the NLSX3018 suitable for use in high-speed applications?
- What is the significance of the device being Pb-Free?
The device being Pb-Free indicates that it is compliant with environmental regulations and does not contain lead, making it safer for use in various applications.
- Can the NLSX3018 be used as a uni-directional translator?
- What are the typical applications of the NLSX3018?
The NLSX3018 is typically used in mobile phones, PDAs, and other portable devices.
- How does the device handle powerup sequencing?
The NLSX3018 allows for non-preferential powerup sequencing, meaning the device will not be damaged during powerup even if the power supplies are not sequenced in a specific order.
