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Texas Instruments SN74LVC2G74DCTRG4
- Part No.:
- SN74LVC2G74DCTRG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
- Datasheet:
-
SN74LVC2G74DCTRG4.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT SM8
- Quantity:
- Payment:
- Shipping:
Inventory:1,253
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Product details
Overview
SN74LVC2G74DCTRG4 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 fundamental storage element in digital control logic, clock-domain synchronization, and state-holding circuits in compact embedded systems.
For engineers reviewing the SN74LVC2G74DCTRG4 datasheet, SN74LVC2G74DCTRG4 pinout, SN74LVC2G74DCTRG4 application, or SN74LVC2G74DCTRG4 equivalent, key selection criteria include its dual asynchronous control inputs, guaranteed operation across industrial temperature range (–40°C to +125°C), NanoFree™ SM8 package footprint, and overvoltage-tolerant inputs up to 5.5 V - critical for mixed-voltage interface design and power sequencing robustness.
Technical Context
This device implements a synchronous edge-triggered storage cell with independent active-low asynchronous set/reset functionality. Its clock input triggers on the positive-going voltage threshold (not edge rate-dependent), and data transfer occurs only when both PRE and CLR are high, satisfying setup (1.3 ns min at 3.3 V) and hold (0.5 ns min) timing requirements.
The Ioff circuitry disables outputs during power-down, blocking back-drive current, while input tolerance to 5.5 V enables level translation from 5 V logic to lower-VCC domains (e.g., 3.3 V or 1.8 V). ESD protection exceeds 2000 V HBM, 1000 V CDM, and 200 V MM per JESD22, supporting reliable handling in automated assembly environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports mixed-supply systems and legacy 5 V interfacing without level shifters |
| tpd (max) | 5.9 ns at 3.3 V - enables reliable operation in 175 MHz clock domains (–40°C to +85°C) |
| Output Drive | ±24 mA at 3.3 V - sufficient to directly drive multiple LVC inputs or small capacitive loads (≤30 pF) |
| Ioff Current | ±10 μA max - prevents damaging back-current during hot-swap or partial-power-down sequences |
| Input Voltage Tolerance | Up to 5.5 V - allows 5 V signals to be safely applied while VCC = 1.8 V or 2.5 V |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial motor control, and telecom infrastructure |
| ESD Rating | 2000 V HBM - meets IPC/JEDEC Class 2 requirements for board-level reliability |
Pinout & Package
SN74LVC2G74DCTRG4 is packaged in an 8-pin SM8 (Small Outline Package, NanoFree™) with body size 2.95 mm × 2.80 mm. This leaded package uses the die as the package, eliminating bond wires and reducing parasitic inductance for improved signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CLK | Clock input | Positive-edge-triggered control signal; voltage-threshold-based triggering ensures robustness against slow-rising clocks |
| 2 - D | Data input | Holds input value sampled on CLK rising edge; accepts 0–5.5 V regardless of VCC |
| 3 - Q | Non-inverted output | Active-high registered output; driven to valid VOH/VOL levels within tpd |
| 4 - GND | Ground reference | Primary return path for all internal logic and output currents; must be low-impedance |
| 5 - Q̅ | Inverted output | Complementary registered output; enables direct implementation of toggle or JK-like behavior |
| 6 - CLR | Asynchronous clear input | Active-low; forces Q = LOW, Q̅ = HIGH immediately, overriding CLK and D |
| 7 - PRE | Asynchronous preset input | Active-low; forces Q = HIGH, Q̅ = LOW immediately, overriding CLK and D |
| 8 - VCC | Supply voltage | Power rail for core logic and I/O buffers; requires local 0.1 μF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ SM8 packaging | Die-as-package construction reduces footprint by >50% vs. standard SOIC-8 and eliminates bond wire inductance |
| Ioff partial-power-down | Disables outputs when VCC = 0 V, preventing back-drive damage during hot-plug or multi-rail sequencing |
| Overvoltage-tolerant inputs | Accepts 0–5.5 V inputs at any valid VCC (1.65–5.5 V), enabling seamless 5 V → 3.3 V or 5 V → 1.8 V level translation |
| Low ground bounce (VOLP) | < 0.8 V typical at VCC = 3.3 V - minimizes noise coupling into shared ground planes in dense PCB layouts |
| Latch-up immunity | > 100 mA per JESD78 Class II - ensures robust operation in noisy industrial environments with transient surges |
Applications
| LED Display Row/Column Driver Control | Industrial PLC Input Debouncing |
|---|---|
|
Use Scenario: Synchronizing row enable signals in multiplexed LED matrix displays where clock jitter must be minimized to avoid visible flicker. IC Role / Device Role / Timing Role: Edge-triggered storage element holding row activation state; PRE/CLR used for display reset or blanking. Use Value: 5.9 ns tpd ensures precise timing alignment across rows; ±24 mA drive directly sources LED column drivers without external buffers. |
Use Scenario: Debouncing mechanical switch inputs in programmable logic controllers where contact bounce lasts 5–20 ms. IC Role / Device Role / Timing Role: Synchronizer and metastability filter; CLK driven by stable system clock, D tied to filtered switch signal. Use Value: Guaranteed setup/hold times (1.3 ns/0.5 ns at 3.3 V) prevent sampling errors; Ioff protects during firmware updates with partial power-down. |
| Network Switch Port State Latching | Motor Driver Enable Sequencing |
|
Use Scenario: Capturing and holding link-up status of Ethernet PHYs in managed switches before software initialization completes. IC Role / Device Role / Timing Role: Asynchronous latch holding PHY ready state; CLR used for hardware-initiated port reset. Use Value: 5.5 V input tolerance allows direct connection to 5 V PHY status pins; –40°C to +125°C rating matches switch chassis thermal profile. |
Use Scenario: Controlling gate-driver enable signals in BLDC motor inverters where safe start-up requires strict sequence enforcement. IC Role / Device Role / Timing Role: Synchronized enable register with PRE/CLR for emergency stop (ESTOP) override and power-on reset. Use Value: Dual asynchronous controls allow immediate disable (CLR) or forced enable (PRE); 10 μA ICC minimizes quiescent power in always-on safety circuits. |
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 |
|---|---|---|---|
| SN74LVC1G74DCKR | Single-channel, SC70-6 package (6-pin), no Q̅ output; 6.7 ns tpd at 3.3 V | Lacks inverted output; smaller footprint but reduced flexibility for complementary logic | Select when space is critical and Q̅ is unused; verify layout accommodates SC70-6 thermal pad |
| 74LVC2G74GW,125 | Nexperia variant in TSSOP8 (same pinout), 6.5 ns tpd at 3.3 V, –40°C to +125°C | Identical function and pin compatibility; slightly higher tpd and different MSL rating (Level-1 vs Level-3) | Drop-in alternative if TI supply constraints arise; validate reflow profile for Level-1 vs Level-3 MSL |
Compared with SN74LVC2G74DCTRG4, SN74LVC1G74DCKR saves board area but sacrifices Q̅ output utility, while 74LVC2G74GW,125 offers identical functionality and pinout with minor timing and packaging differences - making it the most direct functional substitute for continuity planning.
Availability
SN74LVC2G74DCTRG4 is available at Aetrix Electronics and suitable for industrial PLCs, LED display controllers, and network switch management requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVC2G74DCTRG4 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 expertise in high-reliability logic families and advanced packaging technologies.
SN74LVC2G74 belongs to the LVC (Low-Voltage CMOS) logic family, engineered for low-power, high-speed operation across wide voltage ranges - specifically targeting space-constrained, mixed-voltage digital systems in industrial automation and communications infrastructure.
FAQ
What is the maximum clock frequency supported by SN74LVC2G74DCTRG4?
SN74LVC2G74DCTRG4 supports up to 200 MHz maximum clock frequency at VCC = 5 V and TA = –40°C to +85°C, and 140 MHz at TA = –40°C to +125°C. These values derive from minimum clock pulse width (tw) and propagation delay (tpd) limits specified in the switching characteristics tables of the official datasheet SCES203Q.
Does SN74LVC2G74DCTRG4 support 1.8 V operation?
Yes, SN74LVC2G74DCTRG4 is fully specified for 1.65 V to 5.5 V VCC operation. At 1.8 V, it delivers 175 MHz fmax and 6.2 ns tpd (max) over –40°C to +85°C, with VIH/VIL thresholds scaled to 0.65 × VCC - enabling direct integration into 1.8 V FPGA I/O banks and microcontroller peripherals.
How does the Ioff feature function in SN74LVC2G74DCTRG4?
The Ioff feature in SN74LVC2G74DCTRG4 disables all outputs when VCC = 0 V, limiting leakage current to ±10 μA max. This prevents back-driving current from live system buses into the unpowered device - a critical safeguard during hot-swap events, multi-rail power sequencing, or firmware update cycles where VCC may be temporarily removed.
What package type is used for SN74LVC2G74DCTRG4?
SN74LVC2G74DCTRG4 uses the SM8 (Small Outline Package, NanoFree™) - an 8-pin leaded surface-mount package measuring 2.95 mm × 2.80 mm. It is distinct from VSSOP (DCU) and DSBGA (YZP) variants, and features NiPdAu lead finish with Level-1 MSL rating for standard reflow compatibility.
Can SN74LVC2G74DCTRG4 drive a 50 pF load reliably?
Yes, SN74LVC2G74DCTRG4 maintains 5.9 ns tpd (max) at 3.3 V with 30 pF load per JEDEC test conditions. For 50 pF, propagation delay increases predictably - Figure 6-1 shows ~6.5 ns typical tpd at 50 pF and 3 V - remaining well within timing budgets for ≤150 MHz systems with proper layout and termination.
SN74LVC2G74DCTRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm 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:
- SM8
SN74LVC2G74DCTRG4 FAQ
1.How can I place an order for SN74LVC2G74DCTRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G74DCTRG4 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 SN74LVC2G74DCTRG4 reliable?
The price and inventory of SN74LVC2G74DCTRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G74DCTRG4 is usually 5 days.
3.What payment methods are accepted for SN74LVC2G74DCTRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G74DCTRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G74DCTRG4?
SN74LVC2G74DCTRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G74DCTRG4 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 SN74LVC2G74DCTRG4?
For technical support, including SN74LVC2G74DCTRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G74DCTRG4 requirements.
6.How does Aetrix verify that SN74LVC2G74DCTRG4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G74DCTRG4 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 SN74LVC2G74DCTRG4 meets industry standards.
7.What is the process for return or replacement of SN74LVC2G74DCTRG4?
All SN74LVC2G74DCTRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G74DCTRG4, 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 SN74LVC2G74DCTRG4 part is unused and in its original packaging.
Return procedure for SN74LVC2G74DCTRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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