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Texas Instruments SN74LVC2G74YZAR
- Part No.:
- SN74LVC2G74YZAR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-XFBGA, DSBGA
- Datasheet:
-
SN74LVC2G74YZAR.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,738
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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 in partial-power-down systems. It serves as a synchronous storage element in digital control logic, clock-domain interfacing, and signal conditioning circuits.
For engineers reviewing the SN74LVC2G74 datasheet, SN74LVC2G74 pinout, SN74LVC2G74 application, or SN74LVC2G74 equivalent, this page delivers verified electrical specs, package mapping to DSBGA-8 (YZP), functional timing behavior across –40°C to +125°C, and validated alternative options for industrial and telecom interface designs.
Technical Context
This device implements a master-slave D-flip-flop architecture triggered on the rising edge of CLK, with independent asynchronous active-low PRE and CLR inputs that override clocked data transfer. Its Ioff circuitry disables outputs when VCC = 0 V, preventing back-drive current during hot-swap or power sequencing.
It supports voltage translation: inputs tolerate up to 5.5 V regardless of VCC (e.g., 5 V logic driving 3.3 V or 1.8 V domains), while outputs swing rail-to-rail within the applied VCC range. Timing is specified down to –40°C and up to +125°C, with fmax = 140 MHz at 3.3 V over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables interoperability across 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains. |
| tpd (max) | 5.9 ns at VCC = 3.3 V, TA = 85°C - Supports >140 MHz clock rates in high-speed control paths. |
| Ioff Current | ±10 μA max - Ensures safe live insertion and prevents backflow when powered down. |
| Output Drive | ±24 mA at VCC = 3.3 V - Sufficient to directly drive multiple LVC inputs or small capacitive loads. |
| Input Voltage Tolerance | Up to 5.5 V on all inputs - Allows 5 V signals to interface safely with lower-VCC systems. |
| ESD Rating (HBM) | 2000 V - Meets JEDEC JS-001 for robust handling in automated assembly environments. |
| Operating Temp | –40°C to +125°C - Qualified for under-hood automotive, industrial motor control, and telecom infrastructure. |
Pinout & Package
SN74LVC2G74YZAR uses the YZP package: 8-pin DSBGA (Die Size Ball Grid Array), body size 1.91 mm × 0.91 mm, 0.4 mm ball pitch, solder-ball termination, MSL Level-1, RoHS-compliant, rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK (A1) | Clock input | Rising-edge sensitive; triggers synchronous data capture from D to Q/Q when PRE and CLR are high. |
| D (B1) | Data input | Holds next-state value; sampled at CLK rising edge if setup/hold times met and PRE/CLR inactive. |
| PRE (B2) | Asynchronous preset | Active-low: forces Q = H, Q = L immediately, overriding CLK and D - used for known initial state. |
| CLR (C2) | Asynchronous clear | Active-low: forces Q = L, Q = H immediately - enables hardware reset independent of clock domain. |
| Q (D2) | Non-inverted output | Reflects stored D value after CLK edge (if not overridden by PRE/CLR); drives downstream logic. |
| Q (C1) | Inverted output | Complement of Q; provides dual-phase output without external inverter - reduces board area. |
| VCC (A2) | Power supply | Single supply input; powers internal logic and output buffers; requires local 0.1 µF bypass capacitor. |
| GND (D1) | Ground reference | Return path for all currents; must be low-impedance and connected near VCC bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ DSBGA packaging | Die-as-package construction eliminates leadframe; achieves 1.91 mm × 0.91 mm footprint - ideal for space-constrained portable and IoT modules. |
| Ioff partial-power-down protection | Disables outputs at VCC = 0 V, blocking damaging back-current during hot-swap or multi-rail sequencing - critical for modular systems. |
| 5.5 V-tolerant inputs | Accepts 5 V signals while operating at 1.65–3.3 V VCC - eliminates level shifters in mixed-voltage FPGA/CPU interfaces. |
| Low ICC (10 μA max) | Minimizes quiescent power in always-on subsystems such as power-button latching or wake-up logic. |
| Robust ESD immunity | 2000 V HBM, 1000 V CDM - exceeds JEDEC standards for reliability in manufacturing and field deployment. |
Applications
| LED Display Control | Industrial Motor Driver Interface |
|---|---|
|
Use Scenario: Latching enable signals for LED column drivers in high-density signage, where precise timing and glitch-free state retention are required between refresh cycles. IC Role / Device Role / Timing Role: Synchronous D-flip-flop storing column activation state; PRE/CLR ensures deterministic startup and error recovery. Use Value: Eliminates need for external RC reset networks; 5.9 ns tpd enables tight timing margins in 1 kHz+ multiplexed displays. |
Use Scenario: Isolating and synchronizing direction/enable commands from microcontroller GPIO to gate-driver ICs in BLDC motor controllers. IC Role / Device Role / Timing Role: Edge-triggered storage element converting bursty MCU writes into stable, noise-immune control signals for power stage logic. Use Value: ±24 mA drive directly interfaces with high-threshold gate drivers; Ioff prevents latch-up during MCU sleep modes. |
| Telecom Line Card Timing | Server Baseboard Management |
|
Use Scenario: Capturing status flags (e.g., link up/down, alarm assert) from SERDES PHYs in 10G/25G line cards, where signals cross clock domains. IC Role / Device Role / Timing Role: Synchronizer and metastability filter; PRE/CLR resets state on power-up or fault condition. Use Value: 5.5 V-tolerant inputs accept open-drain status lines from legacy PHYs; operates reliably at +125°C ambient. |
Use Scenario: Implementing hardware-based power-on reset latches and watchdog timeout extension in server BMC (Baseboard Management Controller) subsystems. IC Role / Device Role / Timing Role: Nonvolatile state keeper for power sequencing states (e.g., "PSU OK", "Fan OK") between BMC reboots. Use Value: NanoFree™ DSBGA fits in dense BMC layouts; 10 μA ICC minimizes standby current in always-powered management rails. |
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 |
|---|---|---|---|
| SN74LVC1G74YZPR | Single D-flip-flop in same YZP package but lacks PRE input; only has CLR and CLK/D/Q/Q. | Suitable for simpler reset-only use cases; cannot preset high state without external logic. | Select when preset functionality is unnecessary and board space or BOM count must be minimized. |
| 74LVC2G74GW,125 | NXP part in SC-88 (TSOP-8) package; identical logic function and 1.65–5.5 V range, but larger 2.2 mm × 2.45 mm footprint. | Compatible timing and drive strength, but incompatible pinout and thermal resistance (RθJA = 227°C/W vs. YZP's 102°C/W). | Choose when existing PCB layout uses SC-88 or when higher thermal margin is needed in low-airflow enclosures. |
Compared with SN74LVC2G74YZAR, SN74LVC1G74YZPR reduces feature set to cut cost and size where preset is unused, while 74LVC2G74GW,125 offers identical functionality in a thermally less efficient but widely stocked TSOP package - enabling drop-in replacement only in non-space-constrained designs.
Availability
SN74LVC2G74YZAR is available at Aetrix Electronics and suitable for LED display control, industrial motor driver interface, and telecom line card timing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant DSBGA packaging.
Supply support for SN74LVC2G74YZAR 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, low-power logic families.
SN74LVC2G74 belongs to the LVC (Low-Voltage CMOS) logic family, engineered for voltage-flexible, low-noise, high-speed digital interfacing in industrial, automotive, and communications equipment.
FAQ
What is the maximum clock frequency supported by SN74LVC2G74YZAR?
SN74LVC2G74YZAR supports a maximum clock frequency of 140 MHz at VCC = 3.3 V over the full –40°C to +125°C operating range, as confirmed by tpd ≤ 6.9 ns and tw ≥ 3.5 ns in the switching characteristics table. At 25°C and 3.3 V, fmax reaches 200 MHz, but system-level timing margins must account for temperature, voltage, and load variations.
Does SN74LVC2G74YZAR support 5 V input signals while operating at 1.8 V VCC?
Yes, SN74LVC2G74YZAR accepts input voltages up to 5.5 V regardless of VCC level, including at 1.8 V operation. This allows direct interfacing of 5 V microcontrollers or legacy peripherals to 1.8 V logic domains without external level shifters - a key feature verified in the Recommended Operating Conditions table.
How does the Ioff feature of SN74LVC2G74YZAR protect the system during power-down?
The Ioff circuitry in SN74LVC2G74YZAR disables all outputs when VCC = 0 V, limiting leakage current to ±10 μA max. This prevents back-driving current from live signal lines into a powered-down section - essential for hot-pluggable modules, multi-rail power sequencing, and systems with partial power-down requirements.
What is the thermal resistance (RθJA) of the YZP package used in SN74LVC2G74YZAR?
The YZP (DSBGA-8) package of SN74LVC2G74YZAR has a junction-to-ambient thermal resistance (RθJA) of 102°C/W, significantly lower than the VSSOP (227°C/W) and SM8 (220°C/W) variants. This enables higher sustained output drive in compact, thermally constrained layouts without additional heatsinking.
Can SN74LVC2G74YZAR replace SN74LVC2G74DCTR in an existing design?
No - SN74LVC2G74YZAR (DSBGA-8) and SN74LVC2G74DCTR (SM8/SSOP-8) have incompatible footprints, pinouts, and thermal profiles. While functionally identical, the YZP package requires PCB redesign due to bottom-solder ball layout versus gull-wing leads. Direct replacement is not possible without layout revision.
SN74LVC2G74YZAR 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)
SN74LVC2G74YZAR FAQ
1.How can I place an order for SN74LVC2G74YZAR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G74YZAR 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 SN74LVC2G74YZAR reliable?
The price and inventory of SN74LVC2G74YZAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G74YZAR is usually 5 days.
3.What payment methods are accepted for SN74LVC2G74YZAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G74YZAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G74YZAR?
SN74LVC2G74YZAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G74YZAR 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 SN74LVC2G74YZAR?
For technical support, including SN74LVC2G74YZAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G74YZAR requirements.
6.How does Aetrix verify that SN74LVC2G74YZAR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G74YZAR 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 SN74LVC2G74YZAR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G74YZAR?
All SN74LVC2G74YZAR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G74YZAR, 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 SN74LVC2G74YZAR part is unused and in its original packaging.
Return procedure for SN74LVC2G74YZAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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