Overview
The NLSX5014, produced by onsemi, is a 4-bit configurable dual-supply autosensing bidirectional level translator. This device does not require a direction control pin, allowing for flexible and efficient voltage level translation between different power supply rails. The NLSX5014 can translate logic signals between two independent supply rails, VCC and VL, which can be configured from 0.9 V to 4.5 V. This feature enables the translation of logic signals to either higher or lower voltage levels, enhancing design flexibility in various applications.
Key Specifications
| Parameter | Value | Condition | Unit |
|---|---|---|---|
| VCC (High-side DC Supply Voltage) | −0.5 to +5.5 | V | |
| VL (Low-side DC Supply Voltage) | −0.5 to +5.5 | V | |
| I/O VCC (VCC-Referenced DC Input/Output Voltage) | −0.5 to +5.5 | V | |
| I/O VL (VL-Referenced DC Input/Output Voltage) | −0.5 to +5.5 | V | |
| VI (Enable Control Pin DC Input Voltage) | −0.5 to +5.5 | V | |
| ICC (DC Supply Current Through VCC) | ≤ 100 | mA | |
| IL (DC Supply Current Through VL) | ≤ 100 | mA | |
| TSTG (Storage Temperature) | −65 to +150 | °C | |
| tR−VCC (I/O VCC Rise Time) | 8.5 ns (0.9–4.5 V), 3.5 ns (1.8–4.5 V) | CIOVCC = 15 pF | ns |
| tF−VCC (I/O VCC Fall Time) | 8.5 ns (0.9–4.5 V), 3.5 ns (1.8–4.5 V) | CIOVCC = 15 pF | ns |
Key Features
- Wide VCC, VL Operating Range: 0.9 V to 4.5 V
- Independent VL and VCC Supplies: VL may be greater than, equal to, or less than VCC
- High Capacitive Drive Capability: Up to 100 pF
- High-Speed Operation: Guaranteed data rate of 140 Mb/s for VCC, VL > 1.8 V
- Low Bit-to-Bit Skew: Ensures synchronized data transmission
- Overvoltage Tolerant Enable and I/O Pins: Protects against voltage spikes
- Non-Preferential Powerup Sequencing: No specific power-up sequence required
- Power-Off Protection: I/O pins in high impedance state when either supply is off
- Output Enable (EN) Pin: Reduces power consumption by putting I/O ports in 3-state
Applications
The NLSX5014 is suitable for various applications requiring level translation between different voltage domains. These include:
- Mixed Voltage System Designs: Translates logic signals between different power supply rails.
- High-Speed Data Transfer: Ideal for applications requiring fast data rates, such as in high-frequency EMI filters.
- SPI and Other Multi-I/O Protocols: Can be configured as uni-directional or bi-directional translators, simplifying PCB trace connections.
- Power Management Systems: Features power-down protection and low power consumption in 3-state mode.
Q & A
- What is the primary function of the NLSX5014?
The NLSX5014 is a 4-bit configurable dual-supply autosensing bidirectional level translator that translates logic signals between two independent supply rails, VCC and VL.
- What is the operating voltage range for VCC and VL?
The operating voltage range for both VCC and VL is from 0.9 V to 4.5 V.
- Can VL be greater than VCC?
- What is the maximum capacitive load the NLSX5014 can drive?
The NLSX5014 can drive high capacitive loads up to 100 pF.
- What is the guaranteed data rate for the NLSX5014?
The guaranteed data rate is 140 Mb/s for VCC, VL > 1.8 V.
- How does the Output Enable (EN) pin function?
The EN pin can be used to disable both I/O ports by putting them in 3-state, significantly reducing power consumption.
- What is the significance of non-preferential powerup sequencing?
The device does not require a specific power-up sequence, ensuring flexibility during power-up operations.
- How does the NLSX5014 protect against power-off conditions?
The I/O pins are in a high impedance state if either supply voltage is 0 V, providing power-off protection.
- What type of protection does the NLSX5014 offer for the enable and I/O pins?
The NLSX5014 offers overvoltage tolerant (OVT) protection for the enable and I/O pins.
- What are some common applications for the NLSX5014?
