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Nexperia USA Inc. 74HC74PW,118
- Part No.:
- 74HC74PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC74PW,118.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,361
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Product details
Overview
74HC74PW,118 from Nexperia is a dual positive-edge-triggered D-type flip-flop with independent asynchronous set (nSD) and reset (nRD) inputs, 2.0–6.0 V supply range, 14-pin TSSOP package (SOT402-1), and operation up to +125 °C - used for synchronous data latching and state storage in digital control logic, clock domain synchronization, and register file design.
For engineers reviewing the 74HC74PW,118 datasheet, 74HC74PW,118 pinout, 74HC74PW,118 application, or 74HC74PW,118 equivalent, this device supports robust edge-triggered storage with Schmitt-trigger clock inputs, TTL-compatible variants (74HCT74PW), and verified performance across industrial temperature ranges and mixed-voltage logic interfaces.
Technical Context
The 74HC74PW implements two independent D-flip-flops sharing no internal coupling - each features separate nD, nCP, nSD, nRD, nQ, and nQ̅ terminals. Its LOW-to-HIGH clock transition triggers data capture, with asynchronous nSD/nRD overriding clock action when asserted low.
Schmitt-trigger hysteresis on nCP enables reliable operation with slow-rising clock edges; input clamp diodes allow safe interfacing to voltages exceeding VCC using current-limiting resistors. The device complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0 V to 6.0 V - supports direct interface with 3.3 V and 5 V logic families without level shifters. |
| Propagation delay (nCP → nQ) | 14 ns at VCC = 6.0 V - enables reliable operation up to 28 MHz maximum clock frequency. |
| Set-up time (nD → nCP) | 13 ns at VCC = 6.0 V - defines minimum data stability window before clock edge for deterministic capture. |
| Hold time (nD → nCP) | 3 ns at VCC = 6.0 V - specifies minimum data persistence after clock edge to prevent metastability. |
| Output drive strength | ±25 mA - sufficient to directly drive multiple 74HC inputs or small capacitive loads (CL ≤ 50 pF). |
| Input leakage current | ±1.0 μA at VCC = 6.0 V - ensures minimal power loss and signal integrity in high-impedance control paths. |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLCs, and outdoor embedded controllers. |
Pinout & Package
TSSOP14 plastic thin shrink small outline package (SOT402-1); 14 leads; body width 4.4 mm; 0.65 mm lead pitch; exposed pad not present; RoHS-compliant; moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1RD | Asynchronous reset (active LOW) | Forces nQ = LOW regardless of clock or data - used for system initialization or fault recovery. |
| VCC | Positive supply rail | Primary power input; must be decoupled locally with 100 nF ceramic capacitor near pin 14. |
| 1D | Data input (Flip-flop 1) | Sampled on rising nCP edge; determines next-state value of 1Q output. |
| 2RD | Asynchronous reset (active LOW) | Independent reset for second flip-flop; enables selective state clearing in multi-stage logic. |
| 1CP | Clock input (Flip-flop 1) | Schmitt-triggered; accepts slow edges (≤83 ns/V rise/fall) without false triggering. |
| 2D | Data input (Flip-flop 2) | Independent data path; allows dual-channel synchronous storage in single IC footprint. |
| 1SD | Asynchronous set (active LOW) | Forces 1Q = HIGH independently of clock - useful for presetting known states. |
| 2CP | Clock input (Flip-flop 2) | Electrically isolated from 1CP; supports dual-clock-domain applications. |
| 1Q | True output (Flip-flop 1) | Complementary to 1Q̅; drives downstream logic or feedback paths with symmetrical impedance. |
| 2SD | Asynchronous set (active LOW) | Enables independent preset of second flip-flop - critical for pipeline stage alignment. |
| 1Q̅ | Inverted output (Flip-flop 1) | Provides logical complement without external inverter; reduces board space and propagation delay. |
| 2Q | True output (Flip-flop 2) | Matches 1Q electrical characteristics - simplifies timing analysis in mirrored logic blocks. |
| GND | Ground reference | Return path for all internal currents; requires low-inductance connection to system ground plane. |
| 2Q̅ | Inverted output (Flip-flop 2) | Guaranteed phase opposition to 2Q; supports differential signaling or XOR-based toggling logic. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger clock input | Enables reliable operation with slow or noisy clock edges (e.g., RC-generated clocks or long PCB traces). |
| Asynchronous set/reset per flip-flop | Allows independent initialization or forced state control without disrupting the other channel's operation. |
| CMOS-level input compatibility (74HC) | Direct interface with 3.3 V microcontroller GPIOs and other HC-series logic without level translation. |
| High noise immunity (≥40 % VCC) | Withstands EMI-induced glitches on control lines in motor-drive or switching-power-supply environments. |
| Latch-up immunity >100 mA | Meets JESD78 Class II Level B - prevents destructive latch-up during transient overvoltage events. |
Applications
| Industrial Control Logic | Digital Signal Synchronization |
|---|---|
|
Use Scenario: Latching sensor status (e.g., limit switch closure) in programmable logic controllers with cycle-based scanning. IC Role / Device Role / Timing Role: Edge-triggered storage element capturing asynchronous inputs into synchronous scan cycles. Use Value: Eliminates metastability risk via controlled setup/hold timing and provides clean, debounced outputs for safety-critical interlocks. |
Use Scenario: Aligning data between two clock domains (e.g., ADC sampling clock and system processor clock). IC Role / Device Role / Timing Role: Dual-stage synchronizer where first flip-flop samples async data and second stage removes metastability. Use Value: Reduces mean time between failures (MTBF) for metastability events by >10⁶× compared to single-stage sampling. |
| LED Display Row Drivers | State Machine Registers |
|
Use Scenario: Holding row-enable signals in multiplexed 7-segment or dot-matrix LED displays driven by microcontrollers. IC Role / Device Role / Timing Role: Output latch storing display row address bits between refresh cycles. Use Value: Maintains stable row activation during column data updates - prevents ghosting or flicker in high-brightness displays. |
Use Scenario: Storing current state bits in finite-state machines for communication protocol engines (e.g., UART TX/RX state registers). IC Role / Device Role / Timing Role: Core storage unit holding encoded state values updated on each protocol event. Use Value: Enables deterministic state transitions with predictable timing margins due to balanced tPLH/tPHL delays. |
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 |
|---|---|---|---|
| 74HCT74PW,118 | TTL-compatible inputs (VIH = 2.0 V min); identical pinout and timing at 4.5–5.5 V. | Better interoperability with legacy 5 V TTL logic; higher input current draw vs. 74HC74. | Select when interfacing with 74LS or older microcontrollers lacking CMOS-level outputs. |
| SN74LVC74APWRE4 | 3.3 V only (1.65–3.6 V); lower propagation delay (5.5 ns typ); different pinout (no shared VCC/GND placement). | Optimized for modern low-voltage FPGAs and ARM SoCs; not drop-in replaceable due to voltage and layout mismatch. | Choose for new 3.3 V designs requiring sub-10 ns timing and AEC-Q100 qualification (available variant). |
Compared with 74HC74PW,118, the 74HCT74PW,118 offers guaranteed TTL input thresholds but higher static current, while SN74LVC74APWRE4 delivers faster speed and lower voltage operation at the cost of non-interchangeable packaging and thermal derating behavior.
Availability
74HC74PW,118 is available at Aetrix Electronics and suitable for industrial control systems, digital instrumentation, LED display drivers, and automotive body electronics requiring stable component supply across extended temperature ranges.
Supply support for 74HC74PW,118 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 logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in high-volume applications.
The 74HC74 series belongs to Nexperia's standard logic portfolio, designed specifically for robust, low-power digital interfacing and state retention in industrial, automotive, and consumer equipment.
FAQ
What is the maximum clock frequency supported by the 74HC74PW,118?
The 74HC74PW,118 supports a maximum clock frequency of 28 MHz at VCC = 6.0 V and CL = 50 pF, verified per JEDEC test conditions in the official Nexperia datasheet Rev. 9. At 4.5 V, fmax drops to 24 MHz; at 2.0 V, it is limited to 4.8 MHz due to increased propagation delay.
Can the 74HC74PW,118 operate reliably with a 3.3 V supply?
Yes - the 74HC74PW,118 is fully specified from 2.0 V to 6.0 V, including 3.3 V operation. At VCC = 3.3 V, typical propagation delay is ~25 ns, VIH = 2.31 V min, and VOL = 0.33 V max at 4 mA load, meeting standard 3.3 V logic interface requirements.
Does the TSSOP14 package require thermal pad soldering?
No - the SOT402-1 (TSSOP14) package used for 74HC74PW,118 has no exposed thermal pad. Unlike QFN variants (e.g., DHVQFN14), its thermal performance relies solely on lead-frame conduction through pins 7 (GND) and 14 (VCC), with Ptot = 500 mW at Tamb ≤ 81 °C.
How does the Schmitt-trigger clock input improve system robustness?
The Schmitt-trigger on nCP provides hysteresis (~0.4 V at VCC = 4.5 V), allowing reliable edge detection even with slow-rising clock signals (e.g., from RC oscillators or long cables). This eliminates multiple triggering and ensures single, deterministic state transitions per clock cycle.
74HC74PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- 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:
- 82 MHz
- Max Propagation Delay @ V, Max CL:
- 37ns @ 6V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Iq):
- 40 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74HC74PW,118 FAQ
1.How can I place an order for 74HC74PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC74PW,118 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 74HC74PW,118 reliable?
The price and inventory of 74HC74PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC74PW,118 is usually 5 days.
3.What payment methods are accepted for 74HC74PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC74PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC74PW,118?
74HC74PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC74PW,118 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 74HC74PW,118?
For technical support, including 74HC74PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC74PW,118 requirements.
6.How does Aetrix verify that 74HC74PW,118 is sourced from the original manufacturer or authorized distributors?
All 74HC74PW,118 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 74HC74PW,118 meets industry standards.
7.What is the process for return or replacement of 74HC74PW,118?
All 74HC74PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC74PW,118, 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 74HC74PW,118 part is unused and in its original packaging.
Return procedure for 74HC74PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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