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Nexperia USA Inc. 74HCT175D,653
- Part No.:
- 74HCT175D,653
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT175D,653.pdf
- Description:
- IC FF D-TYPE SNGL 4BIT 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,057
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Product details
Overview
74HCT175D,653 from Nexperia is a quad positive-edge-triggered D-type flip-flop with asynchronous master reset (MR), 16-pin SO16 package, TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), propagation delay of 19–50 ns (VCC = 4.5 V), and operation across -40 °C to +125 °C. It synchronizes four parallel data bits in digital control logic, bus interface latching, and clock-domain crossing circuits.
For engineers reviewing the 74HCT175D,653 datasheet, 74HCT175D,653 pinout, 74HCT175D,653 application, or 74HCT175D,653 equivalent, key selection criteria include TTL-level input compatibility, guaranteed 25 MHz maximum clock frequency at VCC = 4.5 V, simultaneous asynchronous reset behavior, and SO16 thermal performance (Ptot = 500 mW at Tamb ≤ 110 °C).
Technical Context
This device implements four independent edge-triggered D flip-flops sharing one common clock (CP) and one active-low master reset (MR). Each flip-flop stores the logic state present at its Dn input on the LOW-to-HIGH transition of CP, provided setup (tsu = 16 ns) and hold (th = 5 ns) times are met. MR overrides clocking and forces all Qn outputs LOW regardless of CP or Dn states.
The internal structure includes input clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors. Output drive capability is ±4.0 mA (VOH/VOL) at VCC = 4.5 V, supporting direct connection to standard TTL loads without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT - TTL-compatible inputs, CMOS outputs; enables direct interfacing with legacy 5 V TTL systems |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard 5 V rail with ±10 % tolerance; excludes 3.3 V operation |
| Propagation Delay (tpd) | 19–50 ns at VCC = 4.5 V - determines maximum synchronous data throughput in register chains |
| Maximum Clock Frequency | 25 MHz at VCC = 4.5 V - sets upper limit for reliable sampling rate in control-state machines |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - ensures robust noise margin against TTL output levels (e.g., 74LS series) |
| Operating Temperature | -40 °C to +125 °C - qualified for industrial and under-hood automotive auxiliary electronics |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets JEDEC JS-001/JS-002 Class 2/C3 for handling in non-ESD-controlled environments |
Pinout & Package
74HCT175D,653 uses the SOT109-1 plastic small outline package (SO16), 16-pin, 3.9 mm body width, with standard 1.27 mm lead pitch and gull-wing leads. Thermal resistance θJA = 12.4 mW/K above 110 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (MR) | Asynchronous master reset | Active-LOW signal forcing all Qn outputs LOW immediately, independent of clock edge |
| 2, 7, 10, 15 (Q0–Q3) | True outputs | Four buffered, non-inverted flip-flop outputs; each drives ±4.0 mA at VCC = 4.5 V |
| 3, 6, 11, 14 (Q0–Q3) | Complementary outputs | Four inverted outputs - eliminates need for external inverters in toggle or differential signaling |
| 4, 5, 12, 13 (D0–D3) | Data inputs | Four independent D-type latch inputs; each requires 16 ns setup and 5 ns hold before CP rising edge |
| 8 (GND) | Ground reference | Primary 0 V return path; must be low-impedance to minimize ground bounce during simultaneous output switching |
| 9 (CP) | Clock input | Single edge-sensitive input triggering all four flip-flops on LOW-to-HIGH transition only |
| 16 (VCC) | Positive supply | 5 V nominal supply; decoupling capacitor (100 nF) required within 10 mm of pin for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V - eliminates level shifters when interfacing with 74LS, 74F, or microcontroller GPIOs |
| Simultaneous asynchronous reset | MR pin resets all four Q outputs to LOW within tPHL ≤ 38 ns - ensures deterministic startup or fault recovery in safety-critical sequencers |
| Complementary outputs per stage | Each flip-flop provides Qn and Qn - supports differential bus drivers, JK emulation, and glitch-free toggling without added gates |
| Wide temperature range | Specified from -40 °C to +125 °C - validated for use in motor control enclosures, power supply supervisors, and industrial PLC I/O modules |
| Input clamp diodes | Integrated ESD protection diodes to VCC and GND - allows safe interfacing to signals up to VCC + 0.5 V using series resistors |
Applications
| Industrial PLC Input Latching | Digital Panel Meter Data Capture |
|---|---|
Use Scenario: Capturing 4-bit status flags from isolated sensor inputs in a programmable logic controller rack. IC Role / Device Role / Timing Role: Quad D flip-flop acting as synchronized input register; CP driven by system scan clock, MR tied to watchdog timeout signal. Use Value: Ensures atomic sampling of all four bits on one clock edge, preventing metastability-induced partial updates during hot-swap or noise events. | Use Scenario: Holding 4-bit BCD digits from an analog-to-digital converter in a handheld multimeter display driver. IC Role / Device Role / Timing Role: Data latch buffering ADC output before multiplexed 7-segment LED drive; CP triggered by conversion completion pulse. Use Value: Eliminates flicker or ghost digits by guaranteeing stable digit values during display refresh cycles, even with variable ADC conversion time. |
| Legacy Bus Interface Adapter | State Machine Register Bank |
Use Scenario: Adapting 4-bit control lines between a vintage 5 V TTL microprocessor bus and modern FPGA-based peripheral logic. IC Role / Device Role / Timing Role: Level-translating register aligning timing domains; D inputs driven by CPU data bus, Q outputs feed FPGA configuration registers. Use Value: Provides clean, jitter-free 5 V logic levels compatible with both TTL fanout requirements and FPGA input thresholds, avoiding signal integrity degradation. | Use Scenario: Storing four independent state bits in a finite-state machine controlling stepper motor sequencing. IC Role / Device Role / Timing Role: Core register element holding current state vector; MR initialized by power-on reset, CP synchronized to step-clock generator. Use Value: Enables deterministic state transitions with zero hold-time violation risk, critical for precise open-loop motion control without feedback sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC175D,653 | CMOS-input thresholds (VIH = 3.15 V min), wider VCC range (2.0–6.0 V), slower propagation (20–265 ns) | Better suited for mixed-voltage systems (e.g., 3.3 V MCU driving 5 V peripherals) but incompatible with pure TTL sources | Select when interfacing with HC-series logic or wide-supply designs; avoid if driving from 74LS or microcontroller GPIOs without pull-ups |
| SN74HCT175N | Dual-in-line package (DIP-16), identical electrical specs, no SO16 thermal derating curve | Preferred for prototyping on breadboards or through-hole PCBs; lacks SO16's space efficiency and reflow compatibility | Choose for lab validation or legacy board repair; not recommended for volume production due to larger footprint and manual assembly cost |
Compared with 74HC175D,653 and SN74HCT175N, the 74HCT175D,653 uniquely balances TTL input compatibility, SO16 manufacturability, and industrial temperature support-making it optimal for automated assembly of ruggedized control hardware where signal integrity and supply voltage constraints are fixed at 5 V.
Availability
74HCT175D,653 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, digital panel meters, legacy bus adapters, and stepper motor controller register banks requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT175D,653 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
Nexperia is a global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices optimized for efficiency and miniaturization in power management, automotive, and industrial applications.
The 74HCT logic family targets interoperability between legacy TTL systems and modern CMOS-based controllers, emphasizing robust noise immunity, precise timing margins, and drop-in replacement capability for 74LS and 74F logic in upgrade paths.
FAQ
Can 74HCT175D,653 operate at 3.3 V supply?
No. The 74HCT175D,653 is specified only for VCC = 4.5 V to 5.5 V. At 3.3 V, input thresholds (VIH ≥ 2.0 V) remain valid, but VOH drops below TTL HIGH recognition level and propagation delay increases beyond specification. Use 74HC175D,653 or 74LVC175 for true 3.3 V operation.
What is the minimum pulse width required on the MR pin?
The MR pin requires a minimum LOW pulse width of 20 ns at VCC = 4.5 V to guarantee reliable reset across temperature and voltage extremes. Shorter pulses may fail to propagate through internal logic stages, resulting in incomplete or metastable reset behavior.
Does the 74HCT175D,653 support hot insertion?
No. While input clamp diodes allow limited overvoltage tolerance, the device lacks hot-swap protection circuitry such as power-up sequencing control or back-drive prevention. Applying VCC while signals are active risks latch-up or accelerated wear; always power VCC before applying CP or D inputs.
How does the SO16 package affect thermal performance?
The SOT109-1 (SO16) package has a total power dissipation limit of 500 mW at Tamb ≤ 110 °C, derating linearly by 12.4 mW/K above that temperature. At 125 °C ambient, Ptot reduces to ~311 mW - sufficient for typical 74HCT175D,653 operation (<10 mW static + <50 mW dynamic), but requires careful PCB copper pour design for sustained high-frequency use.
74HCT175D,653 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 4
- Clock Frequency:
- 49 MHz
- Max Propagation Delay @ V, Max CL:
- 33ns @ 4.5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 8 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HCT175D,653 FAQ
1.How can I place an order for 74HCT175D,653 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT175D,653 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 74HCT175D,653 reliable?
The price and inventory of 74HCT175D,653 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT175D,653 is usually 5 days.
3.What payment methods are accepted for 74HCT175D,653?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT175D,653 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT175D,653?
74HCT175D,653 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT175D,653 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 74HCT175D,653?
For technical support, including 74HCT175D,653 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT175D,653 requirements.
6.How does Aetrix verify that 74HCT175D,653 is sourced from the original manufacturer or authorized distributors?
All 74HCT175D,653 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 74HCT175D,653 meets industry standards.
7.What is the process for return or replacement of 74HCT175D,653?
All 74HCT175D,653 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT175D,653, 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 74HCT175D,653 part is unused and in its original packaging.
Return procedure for 74HCT175D,653:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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