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Texas Instruments SN74HC175PWT
- Part No.:
- SN74HC175PWT
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74HC175PWT.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,396
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Product details
Overview
SN74HC175PWT from Texas Instruments is a quadruple positive-edge-triggered D-type flip-flop with asynchronous clear (CLR), complementary Q and Q̅ outputs per stage, 2–6 V supply operation, 13 ns typical propagation delay at 6 V, and ±4 mA output drive capability. It serves as a synchronous storage register in digital control logic, data buffering, and pattern generation circuits.
For engineers reviewing the SN74HC175PWT datasheet, SN74HC175PWT pinout, SN74HC175PWT application, or SN74HC175PWT equivalent, this page delivers verified electrical specs, TSSOP-16 package details, functional timing behavior, and real-world implementation guidance for logic-level signal synchronization and state retention.
Technical Context
The SN74HC175PWT implements four independent D-type latches triggered on the rising edge of CLK, each with dedicated CLR input enabling simultaneous asynchronous reset. Its CMOS architecture ensures rail-to-rail output swing and high noise immunity across the full 2–6 V operating range.
Each flip-flop provides true and complement outputs (Q, Q̅), supporting direct connection to downstream logic without external inverters. Input thresholds scale with VCC (VIH = 0.7×VCC, VIL = 0.3×VCC), and internal clamping diodes protect against transient overvoltage per JEDEC JESD78.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 6 V - supports mixed-voltage system interfacing and battery-powered operation down to 2 V. |
| Propagation Delay (tpd) | 13 ns (typ) at VCC = 6 V - enables reliable operation up to 25 MHz clock frequency in synchronous designs. |
| Output Drive | ±4 mA at VCC = 5 V - directly drives 10 LSTTL loads or interfaces with standard 5 V logic families without buffers. |
| Input Leakage Current | ≤1 μA max - minimizes static power draw and prevents unintended logic transitions in high-impedance nodes. |
| Power Consumption (ICC) | 80 μA max at VCC = 6 V - suitable for low-power portable and always-on embedded control applications. |
| Setup/Hold Time | tsu = 21 ns, th = 0 ns at VCC = 6 V - simplifies timing closure with zero hold requirement for data stability after clock edge. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade environmental reliability in non-military systems. |
Pinout & Package
TSSOP-16 package (PW), 5.00 mm × 4.40 mm body size, 0.65 mm lead pitch, 1.2 mm max height, RoHS-compliant NIPDAU/SN lead finish, MSL Level-1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CLR) | Asynchronous clear input | Active-low global reset: forces all Q outputs low regardless of clock or data state. |
| 2–5 (D1–D4) | Data inputs | Independent D inputs for each of four flip-flops; sampled on rising CLK edge. |
| 6–9 (Q1–Q4) | True outputs | Registered outputs reflecting D input state after CLK↑; drive downstream logic directly. |
| 10 (GND) | Ground reference | Return path for all internal circuitry and output current sinks. |
| 11–14 (Q1̅–Q4̅) | Complement outputs | Inverted versions of Q1–Q4; eliminate need for external inverters in toggle or differential logic. |
| 15 (CLK) | Clock input | Positive-edge-sensitive master clock controlling all four flip-flops simultaneously. |
| 16 (VCC) | Supply voltage | Primary power rail; decoupling capacitor (0.1 μF) required adjacent to pin for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Quadruple D-type with dual-rail outputs | Four independent flip-flops, each with Q and Q̅ outputs-reduces component count in register files and state machines. |
| Wide VCC range (2–6 V) | Enables interoperability between 3.3 V microcontrollers and 5 V legacy peripherals without level shifters. |
| Low ICC (80 μA max) | Supports energy-constrained applications such as sensor nodes and battery-backed control modules. |
| 13 ns tpd at 6 V | Meets timing requirements for 25 MHz synchronous bus interfaces and real-time control loops. |
| ±4 mA output drive | Drives standard TTL loads directly-eliminates buffer stages in I/O expansion and LED driver logic. |
Applications
| Industrial Control Logic | Digital Pattern Generator |
|---|---|
|
Use Scenario: Synchronizing sensor readouts and actuator commands in PLC I/O modules. IC Role / Device Role / Timing Role: Stores and clocks parallel status bits from isolated input cards into a microcontroller's data bus. Use Value: Complementary outputs enable direct connection to optocoupler drivers without added inverters, reducing BOM cost and board area. |
Use Scenario: Generating repeating test sequences for memory or interface validation in ATE systems. IC Role / Device Role / Timing Role: Holds and shifts predefined bit patterns under programmable clock control to stimulate DUT inputs. Use Value: 13 ns propagation delay ensures deterministic timing alignment across all four output channels, critical for setup/hold compliance in high-speed test vectors. |
| Buffer/Storage Register | Shift Register Stage |
|
Use Scenario: Isolating and latching address/data lines between FPGA and legacy parallel peripherals. IC Role / Device Role / Timing Role: Acts as a transparent latch during write cycles and holds stable values during read cycles. Use Value: Asynchronous CLR allows immediate register reset on system fault detection, improving fail-safe response time. |
Use Scenario: Implementing serial-to-parallel conversion in low-cost communication interfaces (e.g., SPI-to-parallel LED matrix drivers). IC Role / Device Role / Timing Role: Four cascaded stages form one nibble of a shift register; CLK advances data left-to-right. Use Value: Dual-rail outputs provide both active-high and active-low signals for driving common-anode or common-cathode displays without external logic inversion. |
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 |
|---|---|---|---|
| SN74HC174PWR | Hex D-type (6 FFs), no Q̅ outputs, shared CLK/CLR - higher density but lacks complement outputs. | Suitable for pure storage where inverted outputs are unnecessary; requires external inverters if Q̅ needed. | Select when board space is constrained and only true outputs are used; avoid if dual-rail signaling is required. |
| 74LVC175PW | Lower VCC range (1.65–3.6 V), faster tpd (2.5 ns @ 3.3 V), higher drive (24 mA), but not 5 V tolerant. | Optimized for modern 3.3 V systems; incompatible with 5 V buses unless level-shifted. | Prefer for high-speed, low-voltage designs; reject if 5 V interface compatibility or wide-supply flexibility is mandatory. |
Compared with SN74HC175PWT, SN74HC174PWR trades complement outputs for higher channel count in same TSSOP-16 footprint, while 74LVC175PW delivers speed and drive strength at the cost of 5 V tolerance and supply range - making SN74HC175PWT uniquely balanced for mixed-voltage industrial logic.
Availability
SN74HC175PWT is available at Aetrix Electronics and suitable for industrial control logic, digital pattern generation, buffer/storage registers, and shift register stage implementations requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74HC175PWT 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 logic families and industrial-grade qualification.
The SN74HC175PWT belongs to TI's 74HC high-speed CMOS logic series, designed specifically for robust, low-power, wide-supply digital interfacing and state-holding in industrial, automotive, and communications equipment.
FAQ
What is the maximum clock frequency supported by SN74HC175PWT?
The SN74HC175PWT supports up to 25 MHz maximum clock frequency at VCC = 6 V, derived from its 32 ns maximum propagation delay (tpd) and timing margin requirements. At 5 V, fmax drops to 21 MHz, and at 2 V it is limited to 5 MHz - design margins must account for temperature, load capacitance, and supply variation.
Does SN74HC175PWT support 5 V logic systems?
Yes, SN74HC175PWT is fully 5 V compatible: it operates across 2–6 V, accepts 5 V-tolerant inputs, delivers rail-to-rail 5 V outputs, and drives standard LSTTL loads. Its VIH minimum of 3.15 V at VCC = 4.5 V ensures reliable recognition of 5 V logic highs even with supply droop.
How does the CLR input function in SN74HC175PWT?
The CLR input on SN74HC175PWT is an asynchronous, active-low signal that immediately forces all four Q outputs low and all Q̅ outputs high, independent of CLK or D inputs. It overrides all synchronous operations and remains effective across the full −40 °C to +85 °C temperature range.
Can SN74HC175PWT be used in battery-powered applications?
Yes, SN74HC175PWT draws ≤80 μA ICC at 6 V and functions down to 2 V, making it suitable for battery-powered devices. Its low input leakage (≤1 μA) prevents standby current drain, and the 13 ns tpd at 6 V enables responsive wake-up and data capture without excessive active power.
Is SN74HC175PWT pin-compatible with other 74HC175 variants?
Yes, SN74HC175PWT shares identical pinout and functionality with all SN74HC175 variants in SOIC (D), SSOP (DB), PDIP (N), SOP (NS), and TSSOP (PW/PWR) packages. The PW and PWR suffixes differ only in tape-and-reel packaging and MSL rating - electrical and mechanical pin mapping is identical.
SN74HC175PWT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HC
- 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:
- 60 MHz
- Max Propagation Delay @ V, Max CL:
- 26ns @ 6V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
SN74HC175PWT FAQ
1.How can I place an order for SN74HC175PWT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HC175PWT 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 SN74HC175PWT reliable?
The price and inventory of SN74HC175PWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HC175PWT is usually 5 days.
3.What payment methods are accepted for SN74HC175PWT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HC175PWT transactions.
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4.How is shipping managed for SN74HC175PWT?
SN74HC175PWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HC175PWT 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 SN74HC175PWT?
For technical support, including SN74HC175PWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HC175PWT requirements.
6.How does Aetrix verify that SN74HC175PWT is sourced from the original manufacturer or authorized distributors?
All SN74HC175PWT 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 SN74HC175PWT meets industry standards.
7.What is the process for return or replacement of SN74HC175PWT?
All SN74HC175PWT units undergo pre-shipment inspection (PSI). If there is an issue with SN74HC175PWT, 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 SN74HC175PWT part is unused and in its original packaging.
Return procedure for SN74HC175PWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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