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Texas Instruments SN74LV175APW
- Part No.:
- SN74LV175APW
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LV175APW.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,337
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Product details
Overview
SN74LV175APW from Texas Instruments is a quadruple D-type positive-edge-triggered flip-flop with asynchronous clear, designed for 2 V to 5.5 V operation. It features complementary Q and Q̅ outputs per stage, 7.5 ns maximum propagation delay at 5 V, Ioff support for partial-power-down mode, and mixed-mode voltage interface capability across all ports. It serves as a storage register in synchronous digital control systems requiring reliable data latching under varying supply conditions.
For engineers reviewing the SN74LV175APW datasheet, SN74LV175APW pinout, SN74LV175APW application, or SN74LV175APW equivalent, key selection considerations include its 16-pin TSSOP package, guaranteed 5 V/3.3 V/2.5 V timing compliance, direct-clear functionality, dual-rail output architecture, and Ioff-enabled system-level power sequencing.
Technical Context
The SN74LV175APW implements four independent D-type latches synchronized to the rising edge of CLK, each with dedicated CLR input and true/complement outputs. Its CMOS design ensures rail-to-rail output swing, low dynamic ground bounce (<0.8 V at 3.3 V), and controlled VOH undershoot (>2.3 V at 3.3 V).
It operates across –40°C to +85°C with full Ioff specification (5 µA max at 0 V), enabling safe back-drive prevention during partial power-down. Input tolerance up to 5.5 V allows level translation from higher-voltage logic domains into lower-VCC subsystems without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - supports single-supply operation across legacy 5 V, industrial 3.3 V, and low-power 2.5 V systems |
| tpd (max) | 7.5 ns at VCC = 5 V - enables reliable operation in 100+ MHz clock domains with margin |
| Ioff (max) | 5 µA at 0 V - guarantees isolation during hot-insertion or partial power-down sequences |
| VOH / VOL | VOL ≤ 0.55 V @ 12 mA, VOH ≥ 3.8 V @ –12 mA at 4.5 V - ensures robust noise margins with standard CMOS loads |
| Input Voltage Range | –0.5 V to 5.5 V - permits 5.5 V-tolerant inputs on any port regardless of VCC setting |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and instrumentation |
| Package | TSSOP-16 (PW) - 5 mm × 4.4 mm footprint with 0.65 mm pitch, suitable for high-density PCB layouts |
Pinout & Package
TSSOP-16 (PW) package: 5.0 mm × 4.4 mm body, 0.65 mm lead pitch, 1.2 mm max height, gull-wing leads, RoHS-compliant NiPdAu/Sn finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CLR) | Asynchronous clear input | Active-low global reset; forces all Q outputs low independently of clock edge |
| 2,3 (1Q, 1Q̅) | Complementary outputs, Flip-Flop 1 | True and inverted latched data from D1; enables differential signaling or logic inversion without extra gates |
| 4 (1D) | Data input, Flip-Flop 1 | Samples input on rising CLK edge; setup/hold times defined per VCC (e.g., tsu = 4 ns min at 5 V) |
| 5–7 (2D, 2Q, 2Q̅) | Data input & complementary outputs, Flip-Flop 2 | Independent channel identical in timing and drive to FF1; no inter-channel skew dependency |
| 8 (GND) | Ground reference | Primary return path for all internal logic and output drivers; must be low-impedance for noise control |
| 9 (CLK) | Clock input | Positive-edge-triggered; threshold voltage fixed, not dependent on edge rate; immune to slow transitions |
| 10–12 (3Q, 3Q̅, 3D) | Complementary outputs & data input, Flip-Flop 3 | Same electrical behavior as FF1/FF2; fully decoupled timing paths |
| 13–15 (4D, 4Q, 4Q̅) | Data input & complementary outputs, Flip-Flop 4 | Final channel; pinout symmetry simplifies PCB routing for parallel data paths |
| 16 (VCC) | Power supply | Single supply for all four flip-flops; bypass capacitor required near pin for stable switching performance |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (2–5.5 V) | Eliminates need for level shifters when interfacing 5 V microcontrollers with 3.3 V FPGAs or sensors |
| Ioff support | Prevents current backflow during power sequencing-critical for hot-swap and multi-rail systems |
| Complementary outputs per stage | Reduces external inverters in toggle, enable/disable, or differential bus applications |
| Low ground bounce (VOLP < 0.8 V) | Minimizes signal integrity risk in dense layouts with shared ground planes |
| Mixed-mode voltage interface | Accepts 5.5 V inputs while operating at 2.5 V VCC-enables seamless voltage translation |
Applications
| Industrial PLC I/O Expansion | Digital Pattern Generator |
|---|---|
Use Scenario: Latching sensor status bits from 24 V field inputs via optocouplers into a 3.3 V controller bus. IC Role / Device Role / Timing Role: Storage register holding sampled states until polled by MCU; CLR used for system-wide fault reset. Use Value: Dual-rail outputs drive both enable and disable lines of downstream analog switches; Ioff prevents leakage during controller sleep mode. | Use Scenario: Generating repeating test sequences (e.g., PRBS, walking 1s) for validating serial interface receivers. IC Role / Device Role / Timing Role: Synchronous shift register stage; CLK driven by programmable oscillator; CLR initializes pattern start state. Use Value: 7.5 ns tpd at 5 V supports >100 MHz pattern rates; 5.5 V-tolerant inputs allow direct connection to FPGA I/O banks. |
| Automotive Body Control Module | Legacy Bus Interface Buffer |
Use Scenario: Isolating and synchronizing door lock actuator commands between 5 V CAN transceiver and 3.3 V MCU. IC Role / Device Role / Timing Role: Level-translating latch ensuring command persistence across power domain boundaries. Use Value: Mixed-mode operation eliminates discrete level shifters; Ioff protects MCU I/O during battery brownout events. | Use Scenario: Buffering address/data lines between aging 5 V microprocessor and modern 3.3 V peripheral ICs. IC Role / Device Role / Timing Role: Transparent data hold element preventing metastability during clock domain crossing. Use Value: Guaranteed setup/hold times at 2.5 V–5.5 V ensure compatibility across multiple generations of host controllers. |
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 |
|---|---|---|---|
| SN74LVC175APWR | Lower VCC min (1.65 V), faster tpd (5.5 ns @ 3.3 V), but no 5.5 V input tolerance | Better suited for pure 3.3 V or 2.5 V systems; incompatible with 5 V-tolerant interfaces | Select SN74LVC175APWR only if VCC ≤ 3.6 V and 5.5 V input tolerance is unnecessary |
| 74AHC175PW | Higher drive strength (±8 mA), wider VCC (2–5.5 V), but no Ioff or 5.5 V input tolerance | Preferred for driving heavier capacitive loads; lacks partial-power-down safety for hot-swap designs | Choose 74AHC175PW when output load exceeds 12 mA or when Ioff is not required |
Compared with SN74LVC175APWR and 74AHC175PW, the SN74LV175APW uniquely combines 5.5 V input tolerance, Ioff, and industrial temperature range-making it the only option for mixed-voltage, hot-pluggable, or safety-critical latching where input overvoltage resilience and power sequencing integrity are mandatory.
Availability
SN74LV175APW is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, digital pattern generation, and legacy bus interface buffering requiring stable component supply across extended temperature and mixed-voltage environments.
Supply support for SN74LV175APW 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 industrial-grade logic families.
The SN74LV175APW belongs to TI's LV (Low-Voltage) logic series, engineered for robust operation across wide supply ranges and mixed-signal environments-targeting industrial automation, automotive control, and legacy system upgrades.
FAQ
What is the maximum clock frequency supported by the SN74LV175APW?
The SN74LV175APW supports up to 125 MHz maximum operating frequency at VCC = 5 V with CL = 15 pF, and 75 MHz at VCC = 3.3 V under same load. These values derive from fmax specifications in the official datasheet (SCLS400J, Section 6.11), confirmed across temperature and process corners. The SN74LV175APW achieves this using optimized CMOS gate design with minimal internal propagation skew.
Does the SN74LV175APW support partial-power-down operation?
Yes, the SN74LV175APW supports partial-power-down operation via its Ioff specification: maximum 5 µA leakage when VCC = 0 V and inputs/outputs biased between 0–5.5 V. This feature is explicitly tested and guaranteed per datasheet Section 6.5, enabling safe use in systems where one supply rail may be inactive while others remain powered-such as in modular industrial controllers.
What is the function of the complementary outputs (Q and Q̅) on each flip-flop in the SN74LV175APW?
Each of the four flip-flops in the SN74LV175APW provides true (Q) and complement (Q̅) outputs simultaneously. This eliminates the need for external inverters in applications requiring both logic states-such as enabling/disabling paired drivers, implementing toggle functions, or generating differential control signals. The outputs are internally generated and guaranteed to be logically opposite under all valid operating conditions.
Can the SN74LV175APW accept 5 V inputs while operating at 3.3 V VCC?
Yes, the SN74LV175APW accepts input voltages up to 5.5 V regardless of VCC level-a feature documented in Section 6.1 (Absolute Maximum Ratings) and Section 6.3 (Recommended Operating Conditions). This 5.5 V input tolerance enables direct interfacing with 5 V logic families without level-shifting components, making the SN74LV175APW ideal for voltage translation in mixed-supply systems.
What is the thermal resistance (RθJA) of the SN74LV175APW in its TSSOP-16 package?
The SN74LV175APW in the PW (TSSOP-16) package has a junction-to-ambient thermal resistance (RθJA) of 138.7 °C/W, as specified in Section 6.4 of the datasheet (SCLS400J, Revision J, March 2023). This value assumes standard JEDEC 2-layer board conditions and confirms suitability for industrial ambient temperatures up to +85°C without forced airflow or heatsinking.
SN74LV175APW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Clock Frequency:
- 165 MHz
- Max Propagation Delay @ V, Max CL:
- 9.3ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Iq):
- 20 µA
- Input Capacitance:
- 1.4 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
SN74LV175APW FAQ
1.How can I place an order for SN74LV175APW through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LV175APW 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 SN74LV175APW reliable?
The price and inventory of SN74LV175APW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LV175APW is usually 5 days.
3.What payment methods are accepted for SN74LV175APW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LV175APW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LV175APW?
SN74LV175APW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LV175APW 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 SN74LV175APW?
For technical support, including SN74LV175APW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LV175APW requirements.
6.How does Aetrix verify that SN74LV175APW is sourced from the original manufacturer or authorized distributors?
All SN74LV175APW 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 SN74LV175APW meets industry standards.
7.What is the process for return or replacement of SN74LV175APW?
All SN74LV175APW units undergo pre-shipment inspection (PSI). If there is an issue with SN74LV175APW, 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 SN74LV175APW part is unused and in its original packaging.
Return procedure for SN74LV175APW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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