Overview
The 74LVCH2T45GM125 is a bidirectional voltage level translator from NXP USA Inc., designed to facilitate communication between different voltage domains. This device is part of the 74LVC family, known for its low-voltage CMOS logic and high-speed performance. It is particularly useful in systems where data needs to be translated between different voltage levels, such as in mixed-voltage systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range (VCC(A) and VCC(B)) | 1.2 V to 5.5 V | V |
| Data Rate | Up to 420 Mbps (3.3 V to 5.0 V translation) | Mbps |
| Operating Temperature Range | -40°C to +85°C (and up to +125°C for some packages) | °C |
| Package Type | 8-XQFN (1.6x1.6 mm) | - |
| ESD Protection | HBM JESD22-A114F Class 3A exceeds 4000 V, CDM JESD22-C101E exceeds 1000 V | V |
| Latch-up Performance | Exceeds 100 mA per JESD 78 Class II | mA |
| Output Drive | ±24 mA (VCC = 3.0 V) | mA |
| Input Capacitance | 2.2 pF (DIR input), 6.0 pF (A and B ports) | pF |
Key Features
- Dual Supply Voltage Range: Both VCC(A) and VCC(B) can be supplied at any voltage between 1.2 V and 5.5 V, making the device suitable for translating between various low-voltage nodes.
- High Noise Immunity: The device complies with JEDEC standards and has high noise immunity.
- High-Speed Data Rates: Supports data rates up to 420 Mbps for translations between 3.3 V and 5.0 V.
- 3-State Outputs: Enables bidirectional level translation with 3-state outputs.
- Partial Power-Down Mode: IOFF circuitry provides partial power-down mode operation, preventing backflow current when the device is powered down.
- Active Bus Hold Circuitry: Holds unused or floating data inputs at a valid logic level.
- Low Power Consumption: Maximum ICC of 16 μA.
Applications
- Mixed-Voltage Systems: Ideal for systems where data needs to be translated between different voltage levels.
- Consumer Electronics: Used in various consumer electronics to ensure compatibility between different voltage domains.
- Industrial Automation: Suitable for industrial automation systems that require reliable and high-speed data translation.
- Automotive Systems: Used in automotive systems for voltage level translation, ensuring reliable communication between different components.
- IoT Devices: Applicable in IoT devices that require efficient and reliable data translation between different voltage levels.
Q & A
- What is the primary function of the 74LVCH2T45GM125?
The primary function is to perform bidirectional voltage level translation between different voltage domains.
- What is the supply voltage range for this device?
The supply voltage range for both VCC(A) and VCC(B) is from 1.2 V to 5.5 V.
- What are the maximum data rates supported by this device?
The device supports data rates up to 420 Mbps for translations between 3.3 V and 5.0 V.
- Does the device support partial power-down mode?
- What is the operating temperature range for this device?
The operating temperature range is from -40°C to +85°C (and up to +125°C for some packages).
- What type of package is the 74LVCH2T45GM125 available in?
The device is available in an 8-XQFN (1.6x1.6 mm) package.
- Does the device have ESD protection?
- What is the latch-up performance of the device?
The latch-up performance exceeds 100 mA per JESD 78 Class II.
- What is the output drive capability of the device?
The output drive capability is ±24 mA (VCC = 3.0 V).
- What are some common applications for this device?
