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Texas Instruments SN74LVC2G74YEPR
- Part No.:
- SN74LVC2G74YEPR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-XFBGA, DSBGA
- Datasheet:
-
SN74LVC2G74YEPR.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,958
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Product details
Overview
SN74LVC2G74YEPR 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 clock-domain interfacing and signal synchronization circuits.
For engineers reviewing the SN74LVC2G74YEPR datasheet, SN74LVC2G74YEPR pinout, SN74LVC2G74YEPR application, or SN74LVC2G74YEPR equivalent, key selection considerations include its dual-rail voltage tolerance (inputs accept up to 5.5 V independent of VCC), guaranteed operation from –40°C to +125°C, NanoFree™ DSBGA package footprint, and Ioff-enabled back-drive protection in powered-down states.
Technical Context
This device implements a classic master–slave D-flip-flop architecture triggered on the rising edge of CLK, with priority-ordered asynchronous control: low-level assertion of CLR or PRE forces Q or Q outputs regardless of clock or data state. Its logic family is LVC (Low-Voltage CMOS), ensuring compatibility with 1.8 V, 2.5 V, 3.3 V, and 5 V systems while maintaining rail-to-rail input voltage tolerance.
The Ioff circuitry actively disables outputs when VCC = 0 V, blocking current flow between powered and unpowered sections of a board - critical for hot-swap and modular system designs. All inputs and outputs are ESD-protected to 2000 V HBM, 1000 V CDM, and 200 V MM per JESD22, meeting industrial reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - supports mixed-voltage system interfacing without level shifters |
| Max Propagation Delay (tpd) | 5.9 ns at VCC = 3.3 V, TA = 25°C - enables reliable operation up to 200 MHz clock rate in 3.3 V systems |
| Output Drive Strength | ±24 mA at VCC = 3.3 V - sufficient to drive multiple LVC loads or small capacitive traces directly |
| Ioff Current | ±10 μA max - prevents damaging back-current during partial power-down or hot-plug events |
| Input Voltage Tolerance | 0 V to 5.5 V - allows 5 V signals to be safely applied even when VCC = 1.8 V or 2.5 V |
| Operating Temperature | –40°C to +125°C - qualified for automotive under-hood and industrial control environments |
| ESD Rating (HBM) | 2000 V - exceeds JEDEC JS-001 Class 2, enabling robust handling in automated assembly |
Pinout & Package
SN74LVC2G74YEPR is packaged in an 8-pin DSBGA (YZP) measuring 1.91 mm × 0.91 mm, using NanoFree™ technology where the silicon die itself forms the package substrate - eliminating wirebonds and leadframe for ultra-low profile and thermal resistance (RθJA = 102°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Clock input | Rising-edge sensitive; triggers synchronous data capture from D to Q/Q; threshold-based (not slew-rate dependent) |
| D | Data input | Holds value sampled at CLK rising edge; must meet 1.3 ns setup time (VCC = 3.3 V, –40°C to +85°C) |
| PRE | Asynchronous preset | Active-low: forces Q = high, Q = low when asserted; overrides CLK and D |
| CLR | Asynchronous clear | Active-low: forces Q = low, Q = high when asserted; overrides CLK and D |
| Q | True output | Non-inverted registered output; capable of sourcing/sinking ±24 mA at 3.3 V |
| Q | Inverted output | Complementary registered output; matches Q timing within 0.3 ns skew (typ.) |
| VCC | Power supply | Single supply pin; bypassing with 0.1 μF capacitor near pin required for stable switching |
| GND | Ground reference | Return path for all I/O and internal logic; must be low-impedance and co-located with VCC decoupling |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ DSBGA packaging | 1.91 mm × 0.91 mm footprint with no mold compound or leadframe - reduces board area by >60% vs. VSSOP and improves thermal performance |
| Ioff partial-power-down protection | Disables outputs when VCC = 0 V, preventing reverse current flow into powered sections during hot-swap or modular reconfiguration |
| 5.5 V tolerant inputs | Accepts 5 V logic signals across full VCC range (1.65–5.5 V), enabling direct interface with legacy 5 V controllers without external translators |
| Low dynamic power consumption | 10 μA max ICC at 25°C - minimizes quiescent current in always-on subsystems such as power sequencers and status latches |
| Robust ESD immunity | 2000 V HBM, 1000 V CDM, 200 V MM - exceeds JEDEC standards for automated PCB assembly and field-replaceable modules |
Applications
| LED Display Row Drivers | Industrial I/O Expanders |
|---|---|
Use Scenario: Driving multiplexed LED matrix rows where precise timing and glitch-free state transitions are required to avoid visible flicker or ghosting. IC Role / Device Role / Timing Role: Synchronizes row enable signals to a global scan clock, latching display data on each positive clock edge while supporting fast clear/preset for blanking intervals. Use Value: 5.9 ns tpd ensures sub-microsecond update latency; ±24 mA drive directly sources common-anode LED rows without external buffers. |
Use Scenario: Adding isolated, glitch-immune GPIO bits to microcontroller-based PLC modules where hot-swap capability and mixed-voltage interoperability are mandatory. IC Role / Device Role / Timing Role: Acts as a buffered, edge-triggered latch for digital input sampling - isolating field-side 24 V signals (via level-shifting front-end) from the MCU's 3.3 V domain. Use Value: Ioff prevents backfeed during module replacement; 5.5 V-tolerant inputs simplify interface to industrial level-shifters; 125°C rating supports enclosure-mounted deployment. |
| Telecom Line Card Clock Synchronization | Motor Driver Enable Sequencing |
Use Scenario: Aligning distributed clock domains across multi-board telecom switch fabric, where deterministic setup/hold margins and low jitter propagation are essential. IC Role / Device Role / Timing Role: Captures reference clock edges and forwards synchronized enable pulses to downstream SerDes or PHY ICs, with asynchronous reset for fault recovery. Use Value: Guaranteed 1.3 ns setup time (3.3 V) and 0.5 ns hold time ensure clean clock forwarding; low ground bounce (<0.8 V) preserves signal integrity in dense RF-sensitive layouts. |
Use Scenario: Controlling gate-driver enable signals in BLDC motor inverters, where safe startup/shutdown sequencing must prevent shoot-through and ensure dead-time compliance. IC Role / Device Role / Timing Role: Stores safety-critical enable/disable commands from MCU, releasing them synchronously to power stage drivers only upon valid clock edge and cleared fault flags. Use Value: Asynchronous PRE/CLR allows immediate forced disable during overcurrent events; 125°C rating matches motor controller ambient; low ICC extends battery runtime in portable tools. |
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 DFF in SC70-6 package (6-pin); lacks inverted output Q; smaller footprint but no complementary output | Suitable only where Q-only output is needed; not drop-in due to missing Q pin and different pinout | Select when board space is constrained and inverted output is unnecessary; verify routing compatibility with 6-pin layout |
| MC74LCX74DT | Dual DFF in TSSOP-14; includes two independent channels; higher ICC (20 μA typ.), wider temperature range (–55°C to +125°C) | Used in dual-channel sync applications (e.g., differential clock forwarding); requires PCB redesign for pin count and spacing | Choose when dual flip-flop functionality is required and legacy LCX voltage translation (2.5 V ↔ 3.3 V) is preferred over LVC's 5.5 V tolerance |
Compared with SN74LVC2G74YEPR, SN74LVC1G74DCKR saves board area but sacrifices functional completeness (no Q), while MC74LCX74DT adds channel count and extended temp range at the cost of larger size and higher static current - making SN74LVC2G74YEPR optimal for compact, single-channel, mixed-voltage, hot-swap–ready designs.
Availability
SN74LVC2G74YEPR is available at Aetrix Electronics and suitable for industrial I/O expanders, telecom line card synchronization, and motor driver enable sequencing requiring stable component supply, long-term lifecycle support, and RoHS-compliant DSBGA packaging.
Supply support for SN74LVC2G74YEPR 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 interface and timing ICs.
SN74LVC2G74YEPR belongs to TI's LVC logic family - engineered for low-voltage, high-speed, mixed-signal interoperability in industrial automation, communications infrastructure, and automotive subsystems.
FAQ
What is the maximum clock frequency supported by SN74LVC2G74YEPR?
SN74LVC2G74YEPR supports up to 200 MHz maximum clock frequency at VCC = 3.3 V and TA = 25°C, based on its 5.9 ns maximum propagation delay and verified timing margins in the datasheet's Switching Characteristics table. At full industrial temperature (–40°C to +125°C), the guaranteed maximum is 140 MHz under 3.3 V conditions.
Does SN74LVC2G74YEPR support 5 V input signals when operating at 1.8 V VCC?
Yes, SN74LVC2G74YEPR supports 5 V-tolerant inputs across its entire VCC range (1.65 V to 5.5 V). When VCC = 1.8 V, inputs may swing from 0 V to 5.5 V without damage or functional degradation - enabling direct connection to 5 V microcontrollers or sensors without external level shifters.
What is the purpose of the Ioff feature in SN74LVC2G74YEPR?
The Ioff feature in SN74LVC2G74YEPR disables all outputs when VCC = 0 V, preventing current backflow from powered system sections into the unpowered IC. This protects against latch-up and enables safe live insertion in modular backplane or hot-swap applications - a requirement explicitly validated per JESD78 Class II latch-up testing.
Which package type does SN74LVC2G74YEPR use, and what are its dimensions?
SN74LVC2G74YEPR uses the YZP package - an 8-ball DSBGA (Die Size Ball Grid Array) with NanoFree™ construction. Its body measures 1.91 mm × 0.91 mm with 0.5 mm ball pitch, offering the smallest footprint among SN74LVC2G74 variants and optimized thermal resistance (RθJA = 102°C/W).
How does SN74LVC2G74YEPR handle asynchronous preset and clear functions?
SN74LVC2G74YEPR implements priority-based asynchronous control: a low signal on CLR forces Q = low and Q = high; a low signal on PRE forces Q = high and Q = low - both overriding CLK and D. When both PRE and CLR are high, the device operates synchronously on the rising CLK edge, transferring D to Q with defined setup/hold timing.
SN74LVC2G74YEPR 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-DSBGA (1.9x0.9)
SN74LVC2G74YEPR FAQ
1.How can I place an order for SN74LVC2G74YEPR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G74YEPR 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 SN74LVC2G74YEPR reliable?
The price and inventory of SN74LVC2G74YEPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G74YEPR is usually 5 days.
3.What payment methods are accepted for SN74LVC2G74YEPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G74YEPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G74YEPR?
SN74LVC2G74YEPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G74YEPR 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 SN74LVC2G74YEPR?
For technical support, including SN74LVC2G74YEPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G74YEPR requirements.
6.How does Aetrix verify that SN74LVC2G74YEPR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G74YEPR 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 SN74LVC2G74YEPR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G74YEPR?
All SN74LVC2G74YEPR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G74YEPR, 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 SN74LVC2G74YEPR part is unused and in its original packaging.
Return procedure for SN74LVC2G74YEPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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