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Texas Instruments SN74LV74AMPWREP
- Part No.:
- SN74LV74AMPWREP
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LV74AMPWREP.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,254
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Product details
Overview
SN74LV74AMPWREP from Texas Instruments is a dual positive-edge-triggered D-type flip-flop IC designed for synchronous logic control in 2-V to 5.5-V systems. It features independent preset (PRE) and clear (CLR) inputs, 14-pin TSSOP package, propagation delay as low as 6.6 ns at 5 V, and Ioff support for partial-power-down mode. It is used in clock-domain synchronization and data latching in aerospace-grade embedded controllers.
For engineers reviewing the SN74LV74AMPWREP datasheet, SN74LV74AMPWREP pinout, SN74LV74AMPWREP application, or SN74LV74AMPWREP equivalent, key selection criteria include extended temperature range (–55°C to 125°C), mixed-mode voltage operation on all ports, latch-up performance >250 mA per JESD 17, and guaranteed tpd ≤13 ns at 5 V.
Technical Context
This device implements two independent edge-triggered D flip-flops with asynchronous active-low PRE and CLR inputs. Each flip-flop transfers data from D to Q on the rising edge of CLK while PRE and CLR are high, and supports simultaneous asynchronous set/reset regardless of clock state.
It uses LVCMOS logic family architecture with rail-to-rail input voltage tolerance (–0.5 V to 7 V), Ioff protection enabling safe backflow prevention during power sequencing, and dynamic output undershoot/overshoot specifications validated at 3.3 V (VOHV >2.3 V, VOLP <0.8 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - Enables interoperability across 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| tpd (max) | 13 ns at 5 V - Guarantees sub-15 ns timing margin for 50 MHz synchronous designs. |
| Operating Temp | –55°C to 125°C - Qualified for extended-temperature military and space applications per JESD 22 and HAST. |
| Ioff Support | Yes - Prevents damaging current flow when VCC = 0 V, critical for hot-swap and multi-rail power sequencing. |
| Input Voltage Range | –0.5 V to 7 V - Allows robust handling of transient overvoltage and mixed-voltage signal routing. |
| Output Drive | ±12 mA at 5 V - Sufficient to drive 50-pF loads at 90 MHz fmax, supporting fan-out of ≥10 standard LVCMOS inputs. |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM - Meets stringent electrostatic discharge immunity for assembly and field environments. |
Pinout & Package
TSSOP-14 (PW) package, 5.0 mm × 4.4 mm × 1.2 mm height, moisture sensitivity level 1 (260°C peak reflow), lead finish NIPDAU, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLR, 2CLR | Asynchronous Clear Input | Active-low reset forcing Q = L, Q̅ = H independent of clock or data; overrides all other inputs. |
| 1PRE, 2PRE | Asynchronous Preset Input | Active-low set forcing Q = H, Q̅ = L independent of clock or data; overrides all other inputs. |
| 1D, 2D | Data Input | Primary synchronous data source; sampled on rising CLK edge when PRE/CLR are inactive (high). |
| 1CLK, 2CLK | Clock Input | Positive-edge-triggered sampling node; threshold defined by VCC-dependent VIH/VIL, not edge rate. |
| 1Q, 2Q | True Output | Non-inverted registered output; drives downstream logic with specified VOH/VOL under load. |
| 1Q̅, 2Q̅ | Complement Output | Inverted registered output; enables direct implementation of toggle or JK-like functionality. |
| GND | Ground Reference | Logic and power return path; must be low-impedance for noise immunity and output switching integrity. |
| VCC | Supply Voltage | Core power rail; supports 2–5.5 V operation with ICC ≤20 µA at 5.5 V (quiescent). |
Key Features
| Feature | Design Value |
|---|---|
| Extended Temperature Range | –55°C to 125°C operation qualified per JEDEC HAST, temperature cycling, and biased 85/85 testing. |
| Mixed-Mode Voltage Operation | All I/Os tolerate voltages up to 7 V regardless of VCC, enabling safe interfacing between 3.3 V and 5 V subsystems. |
| Partial-Power-Down Protection | Ioff limits off-state current to ≤5 µA, preventing backflow when VCC = 0 V and inputs remain active. |
| Low Dynamic Ground Bounce | VOLP <0.8 V at 3.3 V ensures stable logic levels during simultaneous output switching in dense layouts. |
| Latch-Up Immunity | Exceeds 250 mA per JESD 17, eliminating risk of destructive latch-up in high-noise industrial environments. |
Applications
| Aerospace Data Acquisition | Industrial PLC Control Logic |
|---|---|
|
Use Scenario: Capturing sensor samples synchronized to a master timing reference in radiation-tolerant flight computers. IC Role / Device Role / Timing Role: Dual D flip-flop latching analog-to-digital converter outputs on precise clock edges while maintaining isolation between channels. Use Value: Guaranteed 13 ns max tpd and –55°C to 125°C operation ensure deterministic timing across orbital thermal cycles. |
Use Scenario: Implementing safety-critical state machines in programmable logic controllers with redundant watchdog timers. IC Role / Device Role / Timing Role: Providing asynchronous reset/set for control registers and synchronizing external interrupt signals to internal clock domain. Use Value: Independent PRE/CLR pins enable fail-safe initialization without requiring external combinational logic. |
| Military Communication Sync | Satellite Payload Sequencing |
|
Use Scenario: Aligning baseband data streams across multiple RF transceivers in secure tactical radios. IC Role / Device Role / Timing Role: Edge-triggered registration of serial bit streams with simultaneous Q/Q̅ outputs for differential signaling paths. Use Value: Mixed-mode I/O allows direct interface to both 2.5 V FPGA I/O banks and 5 V legacy modulators. |
Use Scenario: Controlling staged power-up sequences for imaging sensors and telemetry transmitters in CubeSats. IC Role / Device Role / Timing Role: Generating sequenced enable pulses using cascaded Q outputs and asynchronous CLR for emergency shutdown. Use Value: Ioff protection prevents backfeed during partial power-down of non-critical subsystems during orbit insertion. |
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 |
|---|---|---|---|
| SN74LV74APWRE | Commercial-grade version (–40°C to 85°C); identical pinout, timing, and electrical specs except temp range and qualification pedigree. | Not qualified for extended-temperature or high-reliability programs; lacks HAST, 85/85, and electromigration validation. | Select only for cost-sensitive terrestrial applications where extended temp and enhanced reliability are not required. |
| SN74LV74A-Q1 | Automotive-qualified (AEC-Q100 Grade 1, –40°C to 125°C); same PW package and logic function but with additional automotive stress testing. | Targeted at automotive ADAS and infotainment; lacks military/aerospace pedigree (e.g., no DMS support or qualification pedigree reporting). | Prefer for automotive OEM designs; not suitable for space/military use due to different qualification scope and documentation traceability. |
Compared with SN74LV74AMPWREP, SN74LV74APWRE omits extended-temperature qualification and reliability pedigree, while SN74LV74A-Q1 adds automotive-specific validation but excludes aerospace-grade DMS and HAST reporting-making SN74LV74AMPWREP uniquely suited for defense and space programs requiring full JEDEC-qualified extended-temp assurance.
Availability
SN74LV74AMPWREP is available at Aetrix Electronics and suitable for aerospace avionics, industrial control systems, and satellite payload electronics requiring stable component supply across long production lifecycles and extreme environmental conditions.
Supply support for SN74LV74AMPWREP 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 logic solutions with emphasis on reliability, precision, and long-term product support.
SN74LV74AMPWREP belongs to TI's enhanced-product (EP) logic portfolio, engineered specifically for high-reliability applications demanding extended temperature operation, controlled baseline manufacturing, and full qualification pedigree reporting.
FAQ
What is the maximum operating temperature for SN74LV74AMPWREP?
The SN74LV74AMPWREP is rated for continuous operation from –55°C to 125°C. This extended temperature range is validated through JEDEC-qualified testing including Highly Accelerated Stress Test (HAST), temperature cycling, and biased 85/85, making it suitable for deployment in spacecraft, high-altitude UAVs, and downhole industrial equipment where ambient extremes are routine. The SN74LV74AMPWREP maintains full electrical specification compliance across this entire range.
Does SN74LV74AMPWREP support partial-power-down mode?
Yes, SN74LV74AMPWREP includes Ioff circuitry that disables outputs when VCC = 0 V, limiting off-state current to ≤5 µA. This feature prevents damaging current backflow from live inputs into a powered-down device-a critical requirement in multi-rail systems such as phased-array radar modules or modular satellite buses where subsystems power up/down independently. The SN74LV74AMPWREP implements this without external components or configuration.
What is the propagation delay of SN74LV74AMPWREP at 3.3 V?
At VCC = 3.3 V ± 0.3 V and TA = 25°C, the SN74LV74AMPWREP exhibits a typical propagation delay (tpd) of 10.2 ns (min) to 15.4 ns (max) from CLK to Q or Q̅ with CL = 50 pF. This value is measured under standardized load conditions and guarantees deterministic timing behavior in 3.3 V digital systems such as FPGA-based telemetry interfaces or radiation-hardened microcontroller peripherals using the SN74LV74AMPWREP.
Is SN74LV74AMPWREP pin-compatible with commercial SN74LV74A variants?
Yes, SN74LV74AMPWREP uses the identical TSSOP-14 (PW) package and pinout as SN74LV74APWRE and SN74LV74A-Q1, including matching placement of VCC (pin 14), GND (pin 7), and all functional I/Os. However, pin compatibility does not imply functional interchangeability in mission-critical designs-only SN74LV74AMPWREP carries the full EP qualification pedigree required for aerospace and defense applications.
What packaging and reel information applies to SN74LV74AMPWREP?
SN74LV74AMPWREP is supplied in tape-and-reel format: TSSOP-14 (PW) package, 2000 units per reel, reel diameter 330 mm, reel width 12.4 mm, and pin-1 quadrant Q1. The moisture sensitivity level is Level-1 (unlimited floor life at ≤30°C/60% RH), and peak reflow temperature is rated at 260°C. This packaging supports automated SMT assembly in high-reliability production lines handling the SN74LV74AMPWREP.
SN74LV74AMPWREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LV
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 140 MHz
- Max Propagation Delay @ V, Max CL:
- 9.9ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Iq):
- 20 µA
- Input Capacitance:
- 2 pF
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
SN74LV74AMPWREP FAQ
1.How can I place an order for SN74LV74AMPWREP through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LV74AMPWREP 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 SN74LV74AMPWREP reliable?
The price and inventory of SN74LV74AMPWREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LV74AMPWREP is usually 5 days.
3.What payment methods are accepted for SN74LV74AMPWREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LV74AMPWREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LV74AMPWREP?
SN74LV74AMPWREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LV74AMPWREP 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 SN74LV74AMPWREP?
For technical support, including SN74LV74AMPWREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LV74AMPWREP requirements.
6.How does Aetrix verify that SN74LV74AMPWREP is sourced from the original manufacturer or authorized distributors?
All SN74LV74AMPWREP 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 SN74LV74AMPWREP meets industry standards.
7.What is the process for return or replacement of SN74LV74AMPWREP?
All SN74LV74AMPWREP units undergo pre-shipment inspection (PSI). If there is an issue with SN74LV74AMPWREP, 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 SN74LV74AMPWREP part is unused and in its original packaging.
Return procedure for SN74LV74AMPWREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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