Overview
The 74LVCH245APW/AUJ is an octal bus transceiver produced by NXP USA Inc. This integrated circuit is designed to facilitate data transmission between two buses with different voltage levels, making it a versatile component for mixed-voltage systems. The device features 3-state outputs, an output enable (OE) pin, and a send/receive (DIR) pin for direction control. This allows for flexible configuration and efficient data transfer in various electronic systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Voltage - Supply | 1.2V ~ 3.6V |
| Output Type | 3-State |
| Number of Elements | 1 |
| Logic Type | Transceiver, Non-Inverting |
| Number of Bits per Element | 8 |
| Current - Output High, Low | 24mA, 24mA |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
Key Features
- Wide supply voltage range from 1.2 V to 3.6 V, allowing operation in mixed 3.3 V and 5 V environments.
- CMOS low-power consumption for energy efficiency.
- Direct interface with TTL levels.
- Overvoltage tolerant inputs up to 5.5 V.
- Bus hold on all data inputs (specific to 74LVCH245A).
- IOFF circuitry provides partial power-down mode operation.
- ESD protection: HBM exceeds 2000 V, CDM exceeds 1000 V.
- Schmitt-trigger action at all inputs for tolerance of slower input rise and fall times.
Applications
The 74LVCH245APW/AUJ is suitable for a variety of applications, including:
- Mixed-voltage systems where data needs to be transmitted between buses operating at different voltage levels.
- Partial power-down applications where the IOFF circuitry can prevent backflow current.
- Systems requiring low-power consumption and high ESD protection.
- Bus systems in industrial, automotive, and consumer electronics where reliable data transmission is critical.
Q & A
- What is the primary function of the 74LVCH245APW/AUJ? The primary function is to act as an octal bus transceiver, enabling data transmission between two buses with different voltage levels.
- What is the voltage range for the 74LVCH245APW/AUJ? The device operates within a supply voltage range of 1.2 V to 3.6 V.
- What type of outputs does the 74LVCH245APW/AUJ have? The device features 3-state outputs.
- What is the significance of the IOFF circuitry in the 74LVCH245APW/AUJ? The IOFF circuitry allows for partial power-down mode operation, preventing potentially damaging backflow current when the device is powered down.
- Is the 74LVCH245APW/AUJ ESD protected? Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What is the operating temperature range for the 74LVCH245APW/AUJ? The device operates from -40°C to 125°C.
- Is the 74LVCH245APW/AUJ RoHS compliant? Yes, it is ROHS3 compliant.
- What is the package type for the 74LVCH245APW/AUJ? The device comes in a 20-TSSOP package.
- How many bits per element does the 74LVCH245APW/AUJ support? It supports 8 bits per element.
- What is the current rating for the outputs of the 74LVCH245APW/AUJ? The output current is rated at 24mA for both high and low states.
