Overview
The 74LVCH8T245BQ,118 from Nexperia USA Inc. is an 8-bit dual supply translating transceiver with 3-state outputs, designed for bidirectional level translation. This integrated circuit is part of the 74LVCH8T245 series and is packaged in a DHVQFN24 (SOT815-1) package. It is suitable for translating between various low voltage nodes, making it versatile for use in a wide range of electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC(A) (Supply Voltage A) | 1.2 - 5.5 | V |
| VCC(B) (Supply Voltage B) | 1.2 - 5.5 | V |
| Logic Switching Levels | CMOS/LVTTL | |
| Output Drive Capability | ± 24 | mA |
| tpd (Propagation Delay) | 3.5 | ns |
| Number of Bits | 8 | |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package | DHVQFN24 (SOT815-1) | |
| Thermal Resistance (Rth(j-a)) | 66 | K/W |
| Thermal Resistance (Ψth(j-top)) | 5.8 | K/W |
| Thermal Resistance (Rth(j-c)) | 40 | K/W |
Key Features
- Bidirectional Level Translation: Enables translation between any two voltage levels from 1.2 V to 5.5 V.
- 3-State Outputs: Allows for high-impedance state, which is useful for bus applications.
- Auto Direction Sensing: Automatically senses the direction of data transmission based on the DIR input.
- Low Stand-by Current: Minimizes power consumption when the device is not active.
- High-Speed Operation: Supports a maximum data rate of 100 Mbps.
- Robust Rail-to-Rail Performance: Ensures reliable operation across the full voltage range.
- ESD Protection: Exceeds JESD 22 standards for electrostatic discharge protection.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- Fail-Safe Circuitry: Ensures that the outputs remain in a valid state even when the inputs are invalid.
- Automotive Qualified: Suitable for use in automotive applications.
Applications
- Interface Translation: Ideal for translating signals between different voltage domains in mixed-signal systems.
- Automotive Systems: Qualified for use in automotive applications where robustness and reliability are critical.
- Industrial Control Systems: Useful in industrial control systems that require reliable and high-speed data transmission.
- Consumer Electronics: Suitable for use in consumer electronics where low power consumption and high-speed data transfer are necessary.
- Embedded Systems: Can be used in embedded systems that require bidirectional level translation and low power consumption.
Q & A
- What is the primary function of the 74LVCH8T245BQ?
The primary function is to perform bidirectional level translation between two different voltage domains.
- What is the voltage range for VCC(A) and VCC(B)?
Both VCC(A) and VCC(B) can be supplied at any voltage between 1.2 V and 5.5 V.
- What is the maximum propagation delay of the 74LVCH8T245BQ?
The maximum propagation delay is 3.5 ns.
- What is the operating temperature range of the 74LVCH8T245BQ?
The operating temperature range is -40°C to +125°C.
- What type of package does the 74LVCH8T245BQ come in?
The device is packaged in a DHVQFN24 (SOT815-1) package.
- Does the 74LVCH8T245BQ have ESD protection?
Yes, it exceeds JESD 22 standards for electrostatic discharge protection.
- Is the 74LVCH8T245BQ suitable for automotive applications?
Yes, it is qualified for use in automotive applications.
- What is the maximum data rate supported by the 74LVCH8T245BQ?
The device supports a maximum data rate of 100 Mbps.
- Does the 74LVCH8T245BQ have fail-safe circuitry?
Yes, it ensures that the outputs remain in a valid state even when the inputs are invalid.
- What is the thermal resistance (Rth(j-a)) of the 74LVCH8T245BQ?
The thermal resistance (Rth(j-a)) is 66 K/W.
