My Inquiry
My Account
Texas Instruments SN74LVC74APWG4
- Part No.:
- SN74LVC74APWG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVC74APWG4.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,013
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74LVC74APWG4 from Texas Instruments is a dual positive-edge-triggered D-type flip-flop with independent preset and clear inputs, operating from 1.65 V to 3.6 V supply, delivering 5.2 ns propagation delay at 3.3 V, and supporting 5.5 V-tolerant inputs for mixed-voltage interfacing in digital control logic circuits.
For engineers reviewing the SN74LVC74APWG4 datasheet, SN74LVC74APWG4 pinout, SN74LVC74APWG4 application, or SN74LVC74APWG4 equivalent, this device serves as a low-voltage, high-speed edge-triggered storage element in clock-domain synchronization, state machine sequencing, and frequency division-requiring precise setup/hold timing, rail-to-rail output drive, and robust ESD immunity.
Technical Context
The SN74LVC74APWG4 implements two independent CMOS D flip-flops, each with asynchronous active-low preset (PRE) and clear (CLR) inputs that override clock and data states. Its positive-edge clock triggering is voltage-level sensitive-not dependent on input slew rate-and supports operation across –40°C to 125°C.
Input overvoltage tolerance up to 5.5 V enables safe level translation between 1.8 V, 2.5 V, and 3.3 V domains. The device exhibits balanced push-pull outputs with ±24 mA drive capability at 3.0 V, and maintains sub-1 ns output skew under specified load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 3.6 V - Enables direct integration into modern low-power 1.8 V and 2.5 V systems without level shifters. |
| Max Propagation Delay | 5.2 ns at VCC = 3.3 V - Supports >100 MHz clock operation in synchronous logic paths with tight timing budgets. |
| Input Voltage Tolerance | Up to 5.5 V - Allows connection to legacy 5 V buses or higher-voltage control signals without external protection. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - Sufficient to drive multiple LVC loads or moderate PCB traces without signal degradation. |
| ESD Rating | ±2000 V HBM - Meets industrial-grade robustness requirements for handling and board assembly environments. |
| Operating Temperature | –40°C to +125°C - Qualified for automotive under-hood, industrial motor control, and telecom infrastructure applications. |
Pinout & Package
TSSOP-14 (PW) package: 5.0 mm × 6.4 mm body, 0.65 mm pitch, exposed pad not present, RoHS-compliant NiPdAu finish, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLK, 2CLK | Positive-edge clock input | Triggers synchronous data capture on rising transition; threshold defined by VCC/2, insensitive to input slew rate. |
| 1D, 2D | Data input | Samples and latches logic level at CLK↑ if setup/hold times are met; unaffected by subsequent D changes after hold interval. |
| 1PRE, 2PRE | Asynchronous preset input | Active-low: forces Q = HIGH regardless of CLK or D state; overrides all synchronous functions when asserted. |
| 1CLR, 2CLR | Asynchronous clear input | Active-low: forces Q = LOW regardless of CLK or D state; provides hardware reset independent of clock domain. |
| 1Q, 2Q | True output | CMOS-compatible push-pull output; drives full VCC or GND rails with <0.55 V VOL and >VCC–0.2 V VOH at rated loads. |
| 1Q, 2Q | Inverted output | Complementary to true output; enables direct implementation of toggle or differential signaling without external inverters. |
| VCC | Power supply | Single 1.65–3.6 V supply; requires local 0.1 µF ceramic bypass capacitor placed adjacent to pin for noise suppression. |
| GND | Ground reference | Common return path for all I/O and internal logic; must be low-impedance and tied to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 1.65 V to 3.6 V operation supports interoperability across 1.8 V, 2.5 V, and 3.3 V logic families without voltage translation. |
| 5.5 V-tolerant inputs | Enables direct interface to 5 V microcontrollers or sensors while powered from lower VCC, eliminating external level shifters. |
| Sub-6 ns propagation delay | Ensures reliable timing closure in high-speed digital systems such as clock dividers, pipeline registers, and state machines. |
| Asynchronous preset/clear | Provides deterministic initialization and emergency reset functionality independent of clock presence or frequency. |
| High ESD immunity | ±2000 V HBM rating reduces risk of field failure during handling, assembly, or end-user operation in harsh environments. |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
Use Scenario: Synchronizing PWM enable signals across multiple gate drivers in BLDC motor inverters. IC Role / Device Role / Timing Role: Dual D flip-flop acts as a clock-synchronized latch to align phase-shifted control pulses and prevent shoot-through. Use Value: Ensures simultaneous edge alignment of complementary PWM outputs with <1 ns inter-output skew, improving inverter efficiency and thermal stability. |
Use Scenario: Debouncing and synchronizing door lock/unlock switch inputs in central body control modules. IC Role / Device Role / Timing Role: Each flip-flop captures and stabilizes mechanical switch transitions using asynchronous clear for manual override reset. Use Value: Eliminates metastability-induced spurious actuation by enforcing synchronous sampling at MCU clock edges, meeting ISO 11898-3 EMC requirements. |
| Telecom Baseband Processing | Medical Imaging Data Capture |
Use Scenario: Implementing 2:1 clock domain crossing for JESD204B serializer/deserializer interfaces. IC Role / Device Role / Timing Role: Flip-flops serve as handshake synchronizers transferring status flags between FPGA fabric and high-speed PHY layers. Use Value: Provides verified 2-stage synchronization with guaranteed MTBF >109 hours per channel under worst-case process/voltage/temperature corners. |
Use Scenario: Capturing parallel ADC output streams from ultrasound transducer arrays before FPGA buffering. IC Role / Device Role / Timing Role: Dual flip-flops register sampled pixel data on system clock edges while preserving bit integrity across noisy analog front-end zones. Use Value: Delivers <5.2 ns tpd and <0.8 V ground bounce at 3.3 V, minimizing timing jitter and quantization error in 14-bit medical-grade acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC74ADBR | TSSOP-14 replaced with SSOP-14 (6.2 mm × 7.8 mm); identical electrical specs and pinout; slightly higher RθJA (140.4°C/W vs. 150.8°C/W). | Preferred where board space allows larger footprint and existing SSOP tooling is in place; same thermal derating required above 50 mW. | Select SN74LVC74ADBR only when SSOP packaging is mandated by legacy layout or assembly line constraints. |
| 74LVC74ABQAR | WQFN-14 (3 mm × 2.5 mm) replaces TSSOP; identical logic function and timing; improved thermal resistance (RθJA = 102.3°C/W); no exposed pad. | Better suited for space-constrained portable or wearable devices requiring minimal PCB area and enhanced power density. | Choose 74LVC74ABQAR when board real estate is critical and reflow profile supports QFN mounting; verify solder mask clearance per TI SLUA754. |
Compared with SN74LVC74APWG4, SN74LVC74ADBR offers identical functionality in a wider SSOP package for legacy compatibility, while 74LVC74ABQAR delivers superior thermal performance and 45% smaller footprint in WQFN-enabling denser layouts without sacrificing timing or drive strength.
Availability
SN74LVC74APWG4 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and telecom baseband processing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVC74APWG4 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 over 90 years of innovation in high-reliability, low-power, and precision electronics.
The SN74LVC74A product line delivers advanced low-voltage CMOS logic for timing-critical digital systems, designed specifically for interoperability across mixed-voltage domains and demanding industrial/automotive environments.
FAQ
What is the maximum clock frequency supported by SN74LVC74APWG4 at 3.3 V?
The SN74LVC74APWG4 supports a maximum clock frequency of 100 MHz at VCC = 3.3 V ± 0.3 V and TA = –40°C to 125°C. At TA = –40°C to 85°C, it achieves up to 150 MHz under the same supply conditions. These values are validated per TI's switching characteristics test methodology in the official datasheet SCAS287W.
Does SN74LVC74APWG4 require external pull-up resistors on PRE and CLR inputs?
No, SN74LVC74APWG4 does not require external pull-up resistors on PRE or CLR inputs. These inputs are internally biased and function correctly when left unconnected only if actively driven; however, TI recommends tying unused PRE/CLR pins to VCC via a 10 kΩ resistor or directly to VCC to prevent floating states and ensure deterministic operation per Application Report SCBA004.
Can SN74LVC74APWG4 safely interface with 5 V logic outputs?
Yes, SN74LVC74APWG4 supports 5.5 V-tolerant inputs, allowing direct connection to 5 V logic outputs without damage or level-shifting circuitry. Input voltage ratings remain valid across the full operating temperature range (–40°C to 125°C), provided VCC is within 1.65 V to 3.6 V and absolute maximum ratings are not exceeded.
What is the recommended bypass capacitor for SN74LVC74APWG4?
A 0.1 µF ceramic capacitor is recommended for SN74LVC74APWG4, placed as close as possible to the VCC pin with minimal trace length. This value is specified in TI's layout guidelines to suppress high-frequency supply noise and maintain stable output drive during fast edge transitions, especially critical given the device's 5.2 ns tpd and ±24 mA output capability.
How does the asynchronous clear function behave in SN74LVC74APWG4?
In SN74LVC74APWG4, asserting CLR low forces the corresponding Q output to LOW and Q to HIGH immediately-regardless of clock state or data input. This action overrides all synchronous behavior and persists until CLR is deasserted (returned high), at which point normal edge-triggered operation resumes on the next CLK↑, provided setup/hold timing is met.
SN74LVC74APWG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 150 MHz
- Max Propagation Delay @ V, Max CL:
- 5.2ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- 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:
- 14-TSSOP
SN74LVC74APWG4 FAQ
1.How can I place an order for SN74LVC74APWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC74APWG4 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 SN74LVC74APWG4 reliable?
The price and inventory of SN74LVC74APWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC74APWG4 is usually 5 days.
3.What payment methods are accepted for SN74LVC74APWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC74APWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC74APWG4?
SN74LVC74APWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC74APWG4 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 SN74LVC74APWG4?
For technical support, including SN74LVC74APWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC74APWG4 requirements.
6.How does Aetrix verify that SN74LVC74APWG4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC74APWG4 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 SN74LVC74APWG4 meets industry standards.
7.What is the process for return or replacement of SN74LVC74APWG4?
All SN74LVC74APWG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC74APWG4, 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 SN74LVC74APWG4 part is unused and in its original packaging.
Return procedure for SN74LVC74APWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74LVC74APWG4 Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
