Overview
The SN74LVC1G74DQER is a single positive-edge-triggered D-type flip-flop produced by Texas Instruments. This device is designed for operation over a wide voltage range of 1.65 V to 5.5 V, making it versatile for various applications. It features the innovative NanoFree™ package technology, which uses the die as the package, enhancing its compactness and performance. The flip-flop includes clear and preset inputs, allowing for direct control over the output states. It is fully specified for partial-power-down applications and supports live insertion, partial power-down mode, and back-drive protection through its Ioff circuitry.
Key Specifications
| Parameter | Min | Max | Unit |
|---|---|---|---|
| Supply Voltage (VCC) | 1.65 | 5.5 | V |
| Input Voltage (VI) | 0 | 5.5 | V |
| High-Level Input Voltage (VIH) | 0.7 × VCC | VCC | V |
| Low-Level Input Voltage (VIL) | 0 | 0.3 × VCC | V |
| Maximum Propagation Delay (tpd) at 3.3 V | 5.9 | ns | |
| Low Power Consumption (ICC) | 10 | µA | |
| Output Drive at 3.3 V | ±24 | mA | |
| Operating Free-Air Temperature (TA) | -40 | 125 | °C |
| ESD Protection | 2000 V (Human-Body Model) | V |
Key Features
- Available in Texas Instruments NanoFree™ package, which uses the die as the package, enhancing compactness and performance.
- Supports 5-V VCC operation and inputs accept voltages up to 5.5 V.
- Low power consumption with a maximum ICC of 10 µA.
- ±24-mA output drive at 3.3 V.
- Ioff supports live insertion, partial power-down mode, and back-drive protection.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- ESD protection exceeds JESD 22 standards (2000-V human-body model, 200-V machine model, 1000-V charged-device model).
- Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C.
Applications
The SN74LVC1G74DQER is suitable for a variety of applications where low power consumption and high-speed operation are critical. These include:
- High-speed digital circuits requiring low power and compact packaging.
- Partial-power-down applications where the device needs to be powered down without causing backflow currents.
- Systems requiring ESD protection and latch-up performance.
- Embedded systems, microcontrollers, and other digital logic circuits.
Q & A
- What is the voltage range for the SN74LVC1G74DQER?
The device operates over a voltage range of 1.65 V to 5.5 V.
- What is the maximum propagation delay at 3.3 V?
The maximum propagation delay at 3.3 V is 5.9 ns.
- What is the output drive capability at 3.3 V?
The output drive capability at 3.3 V is ±24 mA.
- Does the SN74LVC1G74DQER support partial-power-down applications?
- What kind of ESD protection does the SN74LVC1G74DQER offer?
The device offers ESD protection exceeding JESD 22 standards, including 2000-V human-body model, 200-V machine model, and 1000-V charged-device model.
- What is the operating temperature range for the SN74LVC1G74DQER?
The operating free-air temperature range is from -40°C to 125°C.
- What is the significance of the NanoFree™ package?
The NanoFree™ package technology uses the die as the package, enhancing compactness and performance.
- How does the Ioff circuitry benefit the device?
The Ioff circuitry disables the outputs during power-down, preventing damaging current backflow through the device.
- What are the typical output ground bounce and output undershoot values?
The typical VOLP (output ground bounce) is < 0.8 V, and the typical VOHV (output undershoot) is > 2 V at VCC = 3.3 V, TA = 25°C.
- What are some common applications for the SN74LVC1G74DQER?
