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Texas Instruments SN74LV175APWT
- Part No.:
- SN74LV175APWT
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LV175APWT.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,424
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Product details
Overview
SN74LV175APWT from Texas Instruments is a quadruple positive-edge-triggered D-type 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. It is used in synchronous data latching and register storage within industrial control logic and digital instrumentation.
For engineers reviewing the SN74LV175APWT datasheet, SN74LV175APWT pinout, SN74LV175APWT application, or SN74LV175APWT equivalent, key selection considerations include its 16-pin TSSOP package, guaranteed tpd ≤ 7.5 ns at 5 V, Ioff-enabled power sequencing, dual-rail output structure, and compatibility with 3.3 V/5 V mixed-signal bus interfaces.
Technical Context
The SN74LV175APWT implements four independent D-type flip-flops sharing a common clock (CLK) and asynchronous clear (CLR) input. Each stage latches data on the rising edge of CLK and asserts complementary Q/Q̅ outputs simultaneously. Its CMOS design ensures rail-to-rail output swing and low dynamic ground bounce (VOLP < 0.8 V at 3.3 V).
It supports partial-power-down via Ioff, which disables outputs when VCC = 0 V, preventing backflow current. Input tolerance up to 5.5 V enables level translation from higher-voltage sources into lower-VCC domains without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - supports single-supply operation across 3.3 V and 5 V systems, eliminating need for level shifters |
| Max tpd @ 5 V | 7.5 ns - enables reliable operation up to 125 MHz fmax (CL = 15 pF), suitable for medium-speed control logic |
| Ioff Current | 5 µA max - ensures safe isolation during hot-insertion or power sequencing in multi-rail systems |
| Input Voltage Range | 0 V to 5.5 V - allows interfacing with 5 V TTL or CMOS outputs while powered from 3.3 V supply |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including programmable logic controllers and motor drives |
| Output Drive | ±12 mA @ 4.5 V - sufficient to drive multiple 74LVC inputs or short PCB traces without termination |
| Power Dissipation | 14.5 pF Cpd @ 5 V - low dynamic power consumption ideal for battery-backed or thermally constrained designs |
Pinout & Package
TSSOP-16 (PW) package: 5.0 mm × 4.4 mm body, 0.65 mm lead pitch, 1.2 mm max height, JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLR | Asynchronous active-low clear - forces all Q outputs low regardless of clock state |
| 2,3 | 1Q, 1Q̅ | Complementary outputs of first flip-flop - enables differential signaling or redundancy checking |
| 4 | 1D | Data input for first flip-flop - sampled on rising CLK edge if setup/hold times met |
| 5,12,13 | 2D, 3D, 4D | Independent data inputs for remaining stages - no shared input constraints |
| 6,7,10,11,14,15 | 2Q, 2Q̅, 3Q, 3Q̅, 4Q, 4Q̅ | Full complementary output set - eliminates need for external inverters in toggle or latch applications |
| 8 | GND | Ground reference - must be connected to system ground plane for noise immunity and timing stability |
| 9 | CLK | Global clock input - positive-edge sensitive; internal threshold fixed, not slew-rate dependent |
| 16 | VCC | Primary power supply - bypass capacitor required within 5 mm for stable switching performance |
Key Features
| Feature | Design Value |
|---|---|
| Quadruple D-type with double-rail outputs | Four independent flip-flops each provide true and complement outputs - reduces external logic count in parity generation or bus arbitration |
| Ioff partial-power-down support | Outputs enter high-impedance state when VCC = 0 V - prevents backdrive damage during board hot-swap or staged power-up |
| Mixed-mode voltage interface | 5.5 V-tolerant inputs operate correctly with 3.3 V VCC - enables direct connection to legacy 5 V microcontrollers or FPGAs |
| Low ground bounce (VOLP) | < 0.8 V at 3.3 V - minimizes noise coupling into adjacent analog or RF sections on shared PCBs |
| Guaranteed timing over full VCC range | Validated tpd, tsu, th specs at 2.5 V, 3.3 V, and 5 V - simplifies design reuse across multiple supply architectures |
Applications
| Industrial PLC Register Storage | Digital Instrumentation Data Latching |
|---|---|
Use Scenario: Holding sensor readouts or actuator command states across scan cycles in programmable logic controllers. IC Role / Device Role / Timing Role: Synchronous register bank providing glitch-free state retention synchronized to main controller clock. Use Value: Complementary outputs allow direct connection to differential bus drivers; Ioff prevents backfeed during CPU reset sequences. | Use Scenario: Capturing real-time measurements from ADCs or encoders before processing by an MCU. IC Role / Device Role / Timing Role: Edge-triggered data capture element aligning sampled values to system timing domain. Use Value: 7.5 ns tpd ensures sub-100 ns latency from sample pulse to registered value; 5.5 V input tolerance accepts direct FPGA GPIO signals. |
| Pattern Generator Control Logic | Buffered Shift Register Stage |
Use Scenario: Generating deterministic test waveforms for semiconductor ATE or communication protocol validation. IC Role / Device Role / Timing Role: Four-stage synchronous sequencer driving waveform memory address lines or enable signals. Use Value: Independent D inputs permit arbitrary pattern loading; CLR allows instant waveform restart without clock cycling. | Use Scenario: Isolating and retiming serial data streams between mismatched clock domains in embedded comms modules. IC Role / Device Role / Timing Role: Synchronizing and buffering shift register outputs to prevent metastability in downstream logic. Use Value: Dual-rail outputs feed both next-stage D inputs and status monitoring circuits; low VOLP avoids false triggering in noise-sensitive receivers. |
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 |
|---|---|---|---|
| SN74LVC175APW | Higher drive strength (24 mA), faster tpd (5.5 ns @ 3.3 V), but no Ioff support and narrower VCC range (1.65–3.6 V) | Requires strict 3.3 V supply; unsuitable for mixed-voltage or partial-power-down systems | Select when speed > 100 MHz and power sequencing is not required |
| 74AUP1G74DC | Single D-flip-flop in ultra-small 6-pin SC70, lower ICC (0.9 µA), but no CLR and only one stage | Cannot replace quad functionality without four discrete units; lacks global clear for coordinated reset | Select only for space-constrained single-bit latching where global control is unnecessary |
Compared with SN74LVC175APW and 74AUP1G74DC, the SN74LV175APWT uniquely balances quad-channel density, Ioff safety, wide VCC flexibility, and industrial temperature rating - making it optimal for robust, multi-rail register applications where reliability under power transition matters.
Availability
SN74LV175APWT is available at Aetrix Electronics and suitable for industrial automation, digital instrumentation, and test equipment requiring stable component supply across extended temperature ranges and mixed-voltage interfaces.
Supply support for SN74LV175APWT 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 for industrial, automotive, and communications markets.
The SN74LV175APWT belongs to TI's LV logic family, engineered for low-voltage operation with robust noise immunity and interoperability across mixed-supply systems - targeting industrial control, instrumentation, and legacy interface bridging.
FAQ
What is the maximum clock frequency supported by the SN74LV175APWT?
The SN74LV175APWT supports up to 150 MHz maximum operating frequency at 5 V with CL = 15 pF, and 125 MHz under worst-case conditions (min/max timing margins). At 3.3 V, fmax is 155 MHz typical but derates to 75 MHz under full process/voltage/temperature variation. These values are validated in TI's SCLS400J datasheet Section 6.11.
Does the SN74LV175APWT support partial-power-down mode?
Yes, the SN74LV175APWT supports partial-power-down mode via its Ioff feature. When VCC = 0 V, the outputs are disabled and leakage current is limited to 5 µA max, preventing damaging current backflow from live inputs into a powered-down device - a critical capability for hot-swap and multi-rail power sequencing in industrial systems using SN74LV175APWT.
What is the function of the complementary outputs (Q and Q̅) on each flip-flop stage of the SN74LV175APWT?
Each of the four flip-flop stages in the SN74LV175APWT provides both true (Q) and complement (Q̅) outputs. This eliminates the need for external inverters in applications requiring both logic states - such as differential bus driving, parity generation, or redundant signal paths - directly improving layout efficiency and reducing timing skew compared to discrete inversion of SN74LV175APWT outputs.
Can the SN74LV175APWT interface with 5 V logic while operating from a 3.3 V supply?
Yes, the SN74LV175APWT features 5.5 V-tolerant inputs, allowing it to accept 5 V logic signals while powered from a 3.3 V VCC. This mixed-mode capability is explicitly specified in Section 6.3 of the datasheet and enables direct connection to legacy 5 V microcontrollers or FPGAs without level-shifting circuitry - a key advantage distinguishing SN74LV175APWT from standard LVC-family devices.
Is the SN74LV175APWT pin-compatible with other members of the SN74LV175A family?
Yes, the SN74LV175APWT shares identical pinout and functionality with all SN74LV175A variants (e.g., SN74LV175ADR, SN74LV175ADGVR), differing only in package type (TSSOP-16 vs SOIC/SOP/TVSOP). All share the same logic diagram, timing behavior, and electrical specifications - enabling drop-in replacement across packages when board layout permits, provided thermal and routing constraints are satisfied for SN74LV175APWT.
SN74LV175APWT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LV
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
SN74LV175APWT FAQ
1.How can I place an order for SN74LV175APWT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LV175APWT 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 SN74LV175APWT reliable?
The price and inventory of SN74LV175APWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LV175APWT is usually 5 days.
3.What payment methods are accepted for SN74LV175APWT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LV175APWT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LV175APWT?
SN74LV175APWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LV175APWT 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 SN74LV175APWT?
For technical support, including SN74LV175APWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LV175APWT requirements.
6.How does Aetrix verify that SN74LV175APWT is sourced from the original manufacturer or authorized distributors?
All SN74LV175APWT 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 SN74LV175APWT meets industry standards.
7.What is the process for return or replacement of SN74LV175APWT?
All SN74LV175APWT units undergo pre-shipment inspection (PSI). If there is an issue with SN74LV175APWT, 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 SN74LV175APWT part is unused and in its original packaging.
Return procedure for SN74LV175APWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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