Overview
The SN74LVC1G74DCUR is a single positive-edge-triggered D-type flip-flop designed by Texas Instruments. This device is part of the LVC (Low-Voltage CMOS) family and is optimized for 1.65-V to 5.5-V VCC operation. It features a NanoFree™ package, which is a breakthrough in IC packaging, using the die as the package. The flip-flop includes clear and preset inputs, allowing for flexible 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 | Value | Unit |
|---|---|---|
| Package | VSSOP (DCU) | - |
| Pins | 8 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage Range | 1.65 to 5.5 | V |
| Input Voltage Range | -0.5 to 6.5 | V |
| Output Current (High Level) | -24 mA at VCC = 3.3 V | mA |
| Output Current (Low Level) | 24 mA at VCC = 3.3 V | mA |
| Propagation Delay (CLK to Q) | 2.2 to 5.9 ns at VCC = 3.3 V | ns |
| Thermal Resistance (Junction to Ambient) | 227 | °C/W |
Key Features
- Available in Texas Instruments NanoFree™ package, using the die as the package.
- 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.
- Typical VOLP (output ground bounce) < 0.8 V and VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, TA = 25°C.
- Ioff supports live insertion, partial-power-down mode, and back-drive protection.
- Latch-up performance exceeds 100 mA per JESD 78, class II, and ESD protection exceeds JESD 22 (2000-V human-body model, 200-V machine model, 1000-V charged-device model).
Applications
The SN74LVC1G74DCUR is suitable for a variety of digital logic applications, including:
- General-purpose logic circuits
- Partial-power-down applications
- Systems requiring low power consumption and high output drive capability
- Applications needing robust ESD protection and latch-up performance
Q & A
- What is the operating voltage range of the SN74LVC1G74DCUR?
The operating voltage range is from 1.65 V to 5.5 V. - What type of package does the SN74LVC1G74DCUR come in?
The device is available in a VSSOP (DCU) package with 8 pins. - What is the maximum propagation delay from CLK to Q at 3.3 V VCC?
The maximum propagation delay is 5.9 ns. - Does the SN74LVC1G74DCUR support partial-power-down applications?
Yes, it supports partial-power-down applications using Ioff circuitry. - What is the thermal resistance (junction to ambient) for the DCU package?
The thermal resistance is 227 °C/W. - What are the ESD protection levels for the SN74LVC1G74DCUR?
The device exceeds JESD 22 standards with 2000-V human-body model, 200-V machine model, and 1000-V charged-device model. - How much output current can the SN74LVC1G74DCUR drive at 3.3 V VCC?
The device can drive ±24 mA at 3.3 V VCC. - What is the purpose of the Ioff feature in the SN74LVC1G74DCUR?
The Ioff feature supports live insertion, partial-power-down mode, and back-drive protection. - What are the typical output ground bounce and output VOH undershoot values at 3.3 V VCC and 25°C?
The typical VOLP is < 0.8 V and VOHV is > 2 V. - Can the SN74LVC1G74DCUR be used in high-temperature environments?
Yes, the device operates over a temperature range of -40°C to 125°C.
