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Texas Instruments SN74LVC2G74DCUTE4
- Part No.:
- SN74LVC2G74DCUTE4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
SN74LVC2G74DCUTE4.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,286
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Product details
Overview
SN74LVC2G74 from Texas Instruments is a single positive-edge-triggered D-type flip-flop with asynchronous clear (CLR) and preset (PRE), designed for 1.65 V to 5.5 V operation, featuring 5.9 ns maximum propagation delay at 3.3 V, ±24 mA output drive, and Ioff support for live insertion and partial-power-down applications. It serves as a synchronous storage element in clock-domain interfacing, level translation, and power-button debouncing circuits.
For engineers reviewing the SN74LVC2G74 datasheet, SN74LVC2G74 pinout, SN74LVC2G74 application, or SN74LVC2G74 equivalent, key selection criteria include its dual-rail voltage tolerance (inputs accept up to 5.5 V independent of VCC), guaranteed operation from –40°C to +125°C, low ICC of 10 μA max, NanoFree™ VSSOP-8 package footprint, and precise setup/hold timing requirements for reliable edge-triggered sampling.
Technical Context
This device implements a classic master–slave D flip-flop architecture with asynchronous active-low PRE and CLR inputs that override clocked data transfer. Its input structure supports voltage-level translation across 1.65 V, 2.5 V, 3.3 V, and 5 V domains, enabling interoperability between mixed-supply logic subsystems.
The Ioff circuitry actively disables outputs during power-down, blocking back-drive current and eliminating the need for external isolation components. Timing behavior is defined by voltage-threshold-based clock triggering-not edge-rate dependent-ensuring robust operation even with slow or noisy clock edges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without level shifters. |
| tpd (max) | 5.9 ns at VCC = 3.3 V - Supports >140 MHz clock rates in high-speed control paths. |
| Output Drive | ±24 mA at VCC = 3.3 V - Sufficient to directly drive LEDs, small MOSFET gates, or multiple LVC inputs. |
| Ioff Current | ±10 μA max - Prevents damaging back-current when VCC = 0 V while other system rails remain active. |
| Input Voltage Tolerance | Up to 5.5 V on all inputs - Allows safe connection to 5 V signals even when operating at 1.65 V or 3.3 V. |
| Operating Temp | –40°C to +125°C - Qualified for under-hood automotive, industrial motor control, and telecom infrastructure use. |
| ESD Rating | HBM: 2000 V - Meets JEDEC JESD22-A114 for robust handling in automated assembly environments. |
Pinout & Package
The SN74LVC2G74DCUTE4 uses the DCU package: an 8-pin Very Small-Outline Package (VSSOP) with 2.30 mm × 2.00 mm body size, 0.5 mm lead pitch, and exposed pad for thermal enhancement. It is RoHS-compliant, NIPDAU-plated, and MSL Level-1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CLK | Clock input | Positive-edge-sensitive control signal; triggers synchronous data capture only on rising transitions meeting VIH/VIL thresholds. |
| 2 D | Data input | Primary synchronous input; value latched into Q on next valid CLK rising edge if PRE and CLR are high. |
| 3 Q | Non-inverted output | Complementary to Q; provides true-state storage output with ±24 mA drive capability. |
| 4 GND | Ground reference | Return path for all internal logic and output currents; must be low-impedance and decoupled near the package. |
| 5 Q | Inverted output | Complementary to Q; enables direct implementation of toggle or set/reset functions without external inverters. |
| 6 CLR | Asynchronous clear | Active-low reset: forces Q = LOW, Q = HIGH regardless of CLK or D state when pulled low. |
| 7 PRE | Asynchronous preset | Active-low set: forces Q = HIGH, Q = LOW regardless of CLK or D state when pulled low. |
| 8 VCC | Supply voltage | Power rail for logic core and I/O buffers; requires local 0.1 µF ceramic bypass capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-packages reduce board space by 50% vs. standard SOIC-8; eliminates bond wires and mold compound parasitics. |
| Ioff partial-power-down | Outputs enter high-impedance state when VCC = 0 V, enabling hot-swap and multi-rail sequencing without external isolation switches. |
| Overvoltage-tolerant inputs | Accepts 5.5 V signals at any VCC from 1.65 V to 5.5 V - simplifies interconnection between legacy 5 V and modern low-voltage subsystems. |
| Low ground bounce (VOLP) | < 0.8 V typical at VCC = 3.3 V - minimizes noise coupling into shared ground planes in dense digital layouts. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II - ensures reliability in noisy industrial environments with transient surges. |
Applications
| LED Display Row Drivers | Industrial Motor Control Logic |
|---|---|
Use Scenario: Driving multiplexed LED matrix rows where precise timing and glitch-free state retention are required during scan cycles. IC Role / Device Role / Timing Role: Stores row-enable state synchronized to display controller clock; PRE/CLR used for global blanking or error recovery. Use Value: ±24 mA drive directly sources LED rows; 5.9 ns tpd ensures tight timing alignment across 100+ Hz refresh rates. | Use Scenario: Implementing safety-critical enable/disable latching for H-bridge gate drivers in servo or BLDC motor systems. IC Role / Device Role / Timing Role: Acts as a hardware-settable fault latch: CLR resets after overcurrent event; PRE asserts safe-shutdown state until manual reset. Use Value: –40°C to +125°C rating supports under-hood deployment; Ioff prevents backfeed during MCU brownout. |
| Telecom Line Card Clock Buffering | IoT Edge Device Power Sequencing |
Use Scenario: Distributing and synchronizing control signals across FPGA, PHY, and memory interfaces on high-density line cards. IC Role / Device Role / Timing Role: Provides clean, edge-aligned clock enable strobes with deterministic setup/hold margins across temperature. Use Value: Input voltage tolerance allows direct connection to 5 V management controllers; low ICC reduces standby power in always-on modules. | Use Scenario: Managing startup sequence of sensor, MCU, and radio subsystems in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Holds wake-up signal stable during MCU boot; PRE/CLR used for hardware-initiated deep-sleep entry/exit. Use Value: NanoFree™ VSSOP-8 saves PCB area in space-constrained designs; 10 μA ICC extends battery life in sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G74DCUR | Single DFF in same VSSOP-8 package but lacks PRE input; only has CLR and CLK/D/Q/Q pins. | Suitable where preset functionality is unnecessary; smaller logic footprint but no hardware-set capability. | Select SN74LVC1G74DCUR only if asynchronous set is not required; otherwise SN74LVC2G74DCUTE4 remains necessary. |
| 74LVC2G74GM,115 (Nexperia) | Pin-compatible VSSOP-8 DFF with identical function, but specified only to +85°C and lacks Ioff support. | Applicable in commercial-temperature consumer designs; unsuitable for automotive or industrial thermal environments. | Choose 74LVC2G74GM,115 for cost-sensitive, non-extended-temp applications; retain SN74LVC2G74DCUTE4 for full –40°C to +125°C and Ioff compliance. |
Compared with SN74LVC1G74DCUR and 74LVC2G74GM,115, the SN74LVC2G74DCUTE4 uniquely delivers both PRE/CLR asymmetry, full industrial temperature range, and Ioff-enabled power sequencing-making it the only option for safety-critical or thermally demanding synchronous latching.
Availability
SN74LVC2G74DCUTE4 is available at Aetrix Electronics and suitable for industrial motor control, telecom infrastructure, and IoT edge device designs requiring stable component supply, long-term lifecycle assurance, and guaranteed RoHS-compliant sourcing.
Supply support for SN74LVC2G74DCUTE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of leadership in high-reliability logic families and advanced packaging technologies.
The SN74LVC2G74 belongs to TI's LVC (Low-Voltage CMOS) logic portfolio, engineered for mixed-voltage system interfacing, low-power portable electronics, and rugged industrial control applications where signal integrity and thermal resilience are critical.
FAQ
What is the maximum clock frequency supported by the SN74LVC2G74DCUTE4?
The SN74LVC2G74DCUTE4 supports a maximum clock frequency of 140 MHz at VCC = 3.3 V and TA = +125°C, and up to 200 MHz at VCC = 5 V and TA = +85°C. These values derive from the minimum clock pulse width (tw) and maximum propagation delay (tpd) specifications in the official datasheet SCES203Q. Operation above these frequencies risks setup/hold violations and metastability.
Does the SN74LVC2G74DCUTE4 support 1.8 V operation?
Yes, the SN74LVC2G74DCUTE4 is fully specified for 1.65 V to 5.5 V VCC operation, including reliable 1.8 V operation across –40°C to +125°C. At 1.8 V, it delivers 8 mA output drive, 13.4 ns maximum tpd, and meets all AC/DC electrical characteristics per the datasheet's Recommended Operating Conditions table.
Can the SN74LVC2G74DCUTE4 inputs safely interface with 5 V signals while running at 3.3 V VCC?
Yes, the SN74LVC2G74DCUTE4 inputs tolerate voltages up to 5.5 V regardless of VCC level, enabling direct connection to 5 V microcontrollers or legacy peripherals without external level shifters. This overvoltage capability is explicitly guaranteed in the Absolute Maximum Ratings and Feature sections of the TI datasheet SCES203Q.
What is the purpose of the Ioff feature in the SN74LVC2G74DCUTE4?
The Ioff feature in the SN74LVC2G74DCUTE4 disables output buffers when VCC = 0 V, preventing damaging back-current flow from live system buses into the unpowered device. This enables safe live insertion, partial-power-down sequencing, and hot-swap capability-critical in modular telecom and server applications where rail sequencing is complex.
Is the SN74LVC2G74DCUTE4 pin-compatible with other packages of the same part number?
No-the SN74LVC2G74DCUTE4 specifically uses the DCU (VSSOP-8) package with 2.30 mm × 2.00 mm dimensions and 0.5 mm pitch. While the SN74LVC2G74DCTR uses the DCT (SM8) package and YZPR uses DSBGA-8, their pinouts differ physically and electrically due to distinct land patterns and ball mappings. Only variants sharing the "DCU" suffix (e.g., DCUR, DCUT, DCUTE4) are mechanically and electrically interchangeable.
SN74LVC2G74DCUTE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Clock Frequency:
- 140 MHz
- Max Propagation Delay @ V, Max CL:
- 5.1ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Current - Quiescent (Iq):
- 10 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
SN74LVC2G74DCUTE4 FAQ
1.How can I place an order for SN74LVC2G74DCUTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G74DCUTE4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN74LVC2G74DCUTE4 reliable?
The price and inventory of SN74LVC2G74DCUTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G74DCUTE4 is usually 5 days.
3.What payment methods are accepted for SN74LVC2G74DCUTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G74DCUTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G74DCUTE4?
SN74LVC2G74DCUTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G74DCUTE4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN74LVC2G74DCUTE4?
For technical support, including SN74LVC2G74DCUTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G74DCUTE4 requirements.
6.How does Aetrix verify that SN74LVC2G74DCUTE4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G74DCUTE4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74LVC2G74DCUTE4 meets industry standards.
7.What is the process for return or replacement of SN74LVC2G74DCUTE4?
All SN74LVC2G74DCUTE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G74DCUTE4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN74LVC2G74DCUTE4 part is unused and in its original packaging.
Return procedure for SN74LVC2G74DCUTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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