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Texas Instruments SN74LVC2G74YEAR
- Part No.:
- SN74LVC2G74YEAR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-XFBGA, DSBGA
- Datasheet:
-
SN74LVC2G74YEAR.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,268
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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 max propagation delay at 3.3 V, ±24 mA output drive, and Ioff support for live insertion in partial-power-down systems. It serves as a synchronous storage element in digital control paths of LED displays and network switch timing circuits.
For engineers reviewing the SN74LVC2G74 datasheet, SN74LVC2G74 pinout, SN74LVC2G74 application, or SN74LVC2G74 equivalent, key selection criteria include its dual asynchronous control inputs, overvoltage-tolerant 5.5 V inputs, low ICC (10 μA max), NanoFree™ DSBGA package option, and guaranteed operation across –40°C to +125°C.
Technical Context
This device implements a master-slave D flip-flop architecture triggered on the rising edge of CLK, with independent active-low PRE and CLR inputs that override clocked data transfer. Its Ioff circuitry disables outputs during power-down to prevent back-drive current, and input tolerance up to 5.5 V enables mixed-voltage interfacing (e.g., 5 V logic driving 3.3 V or 1.8 V domains).
Timing behavior is voltage- and temperature-dependent: maximum clock frequency reaches 200 MHz at 3.3 V/–40°C to +85°C, dropping to 140 MHz at 3.3 V/–40°C to +125°C; setup time is as low as 1.1 ns and hold time as low as 0.5 ns under those conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families |
| tpd (max) | 5.9 ns at 3.3 V - enables reliable operation in high-speed digital control loops up to ~170 MHz |
| Ioff Support | Yes - prevents damaging back-current when powered down, critical for hot-swap and modular system designs |
| Output Drive | ±24 mA at 3.3 V - sufficient to directly drive multiple LVC inputs or small capacitive loads without buffering |
| Input Voltage Tolerance | Up to 5.5 V - allows 5 V signals to safely interface with lower-VCC domains without level shifters |
| Operating Temp | –40°C to +125°C - qualified for industrial and telecom infrastructure environments |
| ESD Rating | 2000 V HBM - meets JEDEC JESD22-A114 reliability requirements for board-level handling |
Pinout & Package
The SN74LVC2G74 is available in three 8-pin packages: SM8 (DCT), VSSOP (DCU), and DSBGA (YZP). All variants share identical pin functions and electrical behavior.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Clock input | Rising-edge sensitive; triggers synchronous data capture from D to Q/Q when PRE and CLR are high |
| D | Data input | Holds next-state value; sampled only on valid CLK edges when PRE/CLR inactive |
| PRE | Asynchronous preset | Active-low: forces Q = H, Q = L regardless of CLK or D state |
| CLR | Asynchronous clear | Active-low: forces Q = L, Q = H regardless of CLK or D state |
| Q | True output | Non-inverted registered output; drives loads up to ±24 mA at 3.3 V |
| Q | Inverted output | Complementary registered output; matches Q timing within specified skew limits |
| GND | Ground reference | Return path for all internal logic and output currents; must be low-impedance |
| VCC | Supply voltage | Power rail for core logic and I/O; requires local 0.1 μF bypass capacitor per supply pin |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | DSBGA footprint as small as 1.91 mm × 0.91 mm - eliminates leadframe, reduces parasitic inductance, ideal for space-constrained PCBs |
| Overvoltage-tolerant inputs | Accepts up to 5.5 V regardless of VCC - enables robust 5 V-to-3.3 V or 5 V-to-1.8 V signal translation without external components |
| Ioff protection | Disables outputs during power-down - prevents reverse current flow in live-insertion or multi-rail systems |
| Low dynamic power | 10 μA max ICC - minimizes quiescent power in always-on control logic and battery-backed subsystems |
| High noise immunity | VOLP < 0.8 V and VOHV > 2 V at 3.3 V - suppresses ground bounce and undershoot in dense routing environments |
Applications
| LED Display Control | Network Switch Timing |
|---|---|
Use Scenario: Driving column/row drivers in high-refresh-rate LED signage where precise edge-aligned latching is required. IC Role / Device Role / Timing Role: Synchronous data latch holding pixel enable states; PRE/CLR used for global display reset or blanking. Use Value: 5.9 ns tpd ensures minimal skew between parallel channels, supporting >1 kHz frame rates with tight timing margins. | Use Scenario: Capturing status flags or configuration bits in packet forwarding engines operating across mixed-voltage domains. IC Role / Device Role / Timing Role: Level-shifting register for 5 V management interfaces feeding 3.3 V switch fabric control logic. Use Value: 5.5 V input tolerance eliminates need for discrete level shifters, reducing BOM count and layout complexity. |
| Industrial Motor Driver Interface | IoT Device Power Sequencing |
Use Scenario: Isolating and synchronizing enable signals between microcontroller GPIO and gate-driver ICs in servo drives. IC Role / Device Role / Timing Role: Glitch-free edge-triggered buffer with asynchronous reset for safe motor startup/shutdown sequencing. Use Value: Independent PRE/CLR pins allow hardware-initiated emergency stop independent of clock or firmware state. | Use Scenario: Implementing a debounced power-button latch in battery-powered edge nodes requiring ultra-low standby current. IC Role / Device Role / Timing Role: Low-leakage storage element holding wake-up state; Ioff ensures zero current draw when main rail is off. Use Value: 10 μA max ICC and Ioff support >10-year shelf life in energy-harvesting or coin-cell applications. |
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 |
|---|---|---|---|
| SN74LVC1G74 | Single DFF in 5-pin SC70; no Q output; higher ICC (20 μA); same VCC range and timing | Lacks inverted output; unsuitable where complementary signals are required | Select SN74LVC1G74 only if board space is critical and Q is unused |
| 74AUP1G74 | Lower ICC (0.9 μA), slower tpd (10.3 ns at 3.3 V), narrower VCC (0.8–3.6 V), no 5.5 V input tolerance | Better for ultra-low-power IoT but incompatible with 5 V signaling or wide-supply systems | Choose 74AUP1G74 only for sub-μA standby-critical designs with 3.3 V-only I/O |
Compared with SN74LVC2G74, SN74LVC1G74 saves board area but sacrifices functional completeness, while 74AUP1G74 improves static power by >90% at the cost of speed, voltage range, and interface flexibility - making SN74LVC2G74 the balanced choice for industrial mixed-signal control.
Availability
SN74LVC2G74 is available at Aetrix Electronics and suitable for LED displays, network switches, and motor driver control requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for SN74LVC2G74 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The SN74LVC2G74 belongs to TI's LVC logic family, engineered for high-speed, low-voltage operation with robust mixed-signal interfacing - specifically targeting space- and power-constrained digital control applications in infrastructure equipment.
FAQ
What is the maximum clock frequency supported by the SN74LVC2G74?
The SN74LVC2G74 supports a maximum clock frequency of 200 MHz at VCC = 3.3 V and TA = –40°C to +85°C, dropping to 140 MHz at TA = –40°C to +125°C. This is derived from the minimum clock pulse width (tw) of 2.0 ns and verified in the Switching Characteristics tables of the official datasheet SCES203Q. The actual usable frequency depends on load capacitance and board layout.
Does the SN74LVC2G74 support 5 V input signals when powered from 3.3 V?
Yes, the SN74LVC2G74 supports input voltages up to 5.5 V regardless of VCC level, enabling direct interfacing of 5 V logic signals into a 3.3 V system without external level shifters. This overvoltage tolerance is explicitly specified in the Features and Recommended Operating Conditions sections of the SN74LVC2G74 datasheet.
What package options are available for the SN74LVC2G74?
The SN74LVC2G74 is offered in three production-ready packages: SM8 (DCT, 2.95 mm × 2.80 mm), VSSOP (DCU, 2.30 mm × 2.00 mm), and DSBGA (YZP, 1.91 mm × 0.91 mm). All are 8-pin, RoHS-compliant, and rated for –40°C to +125°C operation (except YZP, rated to +85°C). Pin functions and electrical specs are identical across packages.
How does the Ioff feature function in the SN74LVC2G74?
The Ioff feature in the SN74LVC2G74 disables output buffers when VCC = 0 V, preventing current backflow from live I/O traces into the unpowered device. This protects against damage during hot-swap, partial power-down, or board-level testing. Ioff leakage is limited to ±10 μA per pin, as confirmed in Section 6.5 Electrical Characteristics of the SN74LVC2G74 datasheet.
Can the SN74LVC2G74 replace a 74HC74 in an existing design?
The SN74LVC2G74 is not a direct drop-in replacement for the 74HC74 due to differences in pinout (74HC74 is dual DFF in 14-pin SOIC), voltage range (74HC74 operates 2–6 V vs. LVC's 1.65–5.5 V), and AC characteristics. However, as a single DFF with identical logic function, it can replace one half of a 74HC74 in new designs where space, power, or mixed-voltage operation are priorities - provided pin mapping and timing margins are revalidated.
SN74LVC2G74YEAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 5.4ns @ 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFBGA, DSBGA
SN74LVC2G74YEAR FAQ
1.How can I place an order for SN74LVC2G74YEAR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G74YEAR 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 SN74LVC2G74YEAR reliable?
The price and inventory of SN74LVC2G74YEAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G74YEAR is usually 5 days.
3.What payment methods are accepted for SN74LVC2G74YEAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G74YEAR transactions.
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4.How is shipping managed for SN74LVC2G74YEAR?
SN74LVC2G74YEAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G74YEAR 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 SN74LVC2G74YEAR?
For technical support, including SN74LVC2G74YEAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G74YEAR requirements.
6.How does Aetrix verify that SN74LVC2G74YEAR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G74YEAR 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 SN74LVC2G74YEAR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G74YEAR?
All SN74LVC2G74YEAR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G74YEAR, 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 SN74LVC2G74YEAR part is unused and in its original packaging.
Return procedure for SN74LVC2G74YEAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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