Overview
The 74LVC1T45GM,115 is a dual supply translating transceiver with 3-state outputs, designed by NXP Semiconductors (now part of Nexperia). This single-bit transceiver enables bidirectional level translation between different voltage levels, making it versatile for various electronic designs. It features two 1-bit input-output ports (A and B), a direction control input (DIR), and dual supply pins (VCC(A) and VCC(B)) that can operate within a wide voltage range of 1.2 V to 5.5 V. This device is particularly useful for translating between different low voltage nodes such as 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V.
Key Specifications
| Parameter | Min | Max | Unit | Description |
|---|---|---|---|---|
| VCC(A) | 1.2 | 5.5 | V | Supply voltage A |
| VCC(B) | 1.2 | 5.5 | V | Supply voltage B |
| VI | 0 | 5.5 | V | Input voltage |
| VO | 0 | 5.5 | V | Output voltage |
| Tamb | -40 | 125 | °C | Ambient temperature |
| t pd | 2.5 | ns | Propagation delay | |
| Data Rate | 420 | Mbps | Maximum data rate (3.3 V to 5.0 V translation) | |
| Output Drive Capability | ±24 | mA | Output drive capability (VCC = 3.0 V) | |
| Package | 6-XSON (SOT886) |
Key Features
- Wide Supply Voltage Range: VCC(A) and VCC(B) can be supplied at any voltage between 1.2 V and 5.5 V, making it suitable for translating between various low voltage nodes.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- High Data Rates: Supports maximum data rates of 420 Mbps (3.3 V to 5.0 V translation), 210 Mbps (translate to 3.3 V), 140 Mbps (translate to 2.5 V), 75 Mbps (translate to 1.8 V), and 60 Mbps (translate to 1.5 V).
- ESD Protection: Complies with HBM JESD22-A114F Class 3A (exceeds 4000 V) and CDM JESD22-C101E (exceeds 1000 V).
- Partial Power-Down Mode: IOFF circuitry disables the output to prevent backflow current when the device is powered down.
- Active Bus Hold Circuitry: Available in the 74LVCH1T45, holds unused or floating data inputs at a valid logic level.
- Low Power Consumption: Maximum ICC of 16 μA.
- Multiple Package Options: Available in various packages, including 6-XSON (SOT886).
Applications
The 74LVC1T45GM,115 is versatile and can be used in a wide range of applications across various industries, including:
- Automotive: For level translation in automotive systems where different voltage levels are used.
- Industrial IoT: In industrial IoT devices that require reliable and high-speed data translation.
- Mobile and Consumer Electronics: For translating between different voltage levels in mobile devices and consumer electronics.
- Computing and Power Systems: In computing systems and power management circuits where level translation is necessary.
- Wearables and Embedded Systems: In wearables and other embedded systems that require compact and efficient level translation.
Q & A
- What is the primary function of the 74LVC1T45GM,115?
The primary function is to enable bidirectional level translation between different voltage levels, ranging from 1.2 V to 5.5 V.
- What are the supported data rates for the 74LVC1T45GM,115?
The device supports data rates up to 420 Mbps (3.3 V to 5.0 V translation), with lower rates for other voltage translations.
- What is the purpose of the IOFF circuitry in the 74LVC1T45GM,115?
The IOFF circuitry disables the output to prevent backflow current when the device is powered down.
- What is the operating temperature range for the 74LVC1T45GM,115?
The device operates within an ambient temperature range of -40°C to +125°C.
- What type of ESD protection does the 74LVC1T45GM,115 offer?
The device complies with HBM JESD22-A114F Class 3A (exceeds 4000 V) and CDM JESD22-C101E (exceeds 1000 V).
- What package options are available for the 74LVC1T45GM,115?
The device is available in a 6-XSON (SOT886) package.
- How does the active bus hold circuitry work in the 74LVCH1T45?
The active bus hold circuitry holds unused or floating data inputs at a valid logic level.
- What is the maximum output drive capability of the 74LVC1T45GM,115?
The maximum output drive capability is ±24 mA when VCC = 3.0 V.
- Can the 74LVC1T45GM,115 be used in partial power-down applications?
Yes, the device is fully specified for partial power-down applications using IOFF circuitry.
- What are some common applications for the 74LVC1T45GM,115?
Common applications include automotive, industrial IoT, mobile and consumer electronics, computing, and wearables.
