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NXP Semiconductors 74HC74D/S200118
- Part No.:
- 74HC74D/S200118
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC74D/S200118.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,305
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Product details
Overview
74HC74D/S200118 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, propagation delay as low as 14 ns at VCC = 6.0 V, and operation over –40 °C to +125 °C - used in digital clock domain synchronization, state machine control, and data latching in industrial logic systems.
For engineers reviewing the 74HC74D/S200118 datasheet, 74HC74D/S200118 pinout, 74HC74D/S200118 application, or 74HC74D/S200118 equivalent, key selection criteria include TTL/CMOS input compatibility (HC variant), SO14 package thermal profile, edge-trigger timing margins, and dual-channel isolation for independent register control.
Technical Context
This device implements two independent D-type latches, each triggered on the LOW-to-HIGH transition of its dedicated clock input (nCP), with Schmitt-trigger action on nCP enabling robust operation with slow-rising clock edges. Each section features active-low asynchronous nSD and nRD inputs that override clocked behavior.
Inputs include clamp diodes supporting interface to voltages exceeding VCC via current-limiting resistors. The design complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V), and meets HBM ESD >2000 V and CDM >1000 V per JS-001/JS-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HC high-speed CMOS - compatible with 3.3 V and 5 V systems, lower power than TTL |
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage board designs and battery-backed operation |
| Propagation Delay (tpd) | 14 ns max at VCC = 6.0 V - enables reliable operation up to 24 MHz clock frequency |
| Input Thresholds | VIH = 4.2 V, VIL = 1.8 V at VCC = 6.0 V - CMOS-level input compatibility, not TTL |
| Operating Temperature | –40 °C to +125 °C - qualified for extended industrial and under-hood applications |
| Package | SO14 (SOT108-1), 3.9 mm body width - standard surface-mount footprint with proven thermal reliability |
| ESD Rating | HBM >2000 V, CDM >1000 V - exceeds JEDEC JS-001 Class 2 and JS-002 Class C3 requirements |
Pinout & Package
74HC74D/S200118 is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads and 3.9 mm body width. Pin 1 is marked by an index area; pin 7 is GND, pin 14 is VCC.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | nRD (1st section reset) | Asynchronous active-low reset - forces 1Q = L, 1Q = H regardless of clock or data |
| 2 | 1D (1st section data) | Data input sampled on rising edge of 1CP - determines next-state output |
| 3 | 1CP (1st section clock) | LOW-to-HIGH edge-triggered clock with Schmitt-trigger input - tolerant to slow rise times |
| 4 | 1SD (1st section set) | Asynchronous active-low set - forces 1Q = H, 1Q = L regardless of clock or data |
| 5 | 1Q (1st section Q) | True output of first flip-flop - reflects stored data after valid clock edge |
| 6 | 1Q (1st section Q-bar) | Complementary output - provides inverted logic state without external inverter |
| 7 | GND | Ground reference (0 V) - must be connected to system ground plane |
| 8 | 2Q (2nd section Q-bar) | Complementary output of second flip-flop - electrically isolated from first section |
| 9 | 2Q (2nd section Q) | True output of second flip-flop - operates independently with own 2D, 2CP, 2SD, 2RD |
| 10 | 2SD (2nd section set) | Asynchronous active-low set for second section - no crosstalk with section 1 |
| 11 | 2CP (2nd section clock) | Independent edge-triggered clock input - allows dual-domain timing control |
| 12 | 2D (2nd section data) | Second data path - enables parallel register storage without shared control lines |
| 13 | 2RD (2nd section reset) | Asynchronous active-low reset for second section - fully decoupled from section 1 |
| 14 | VCC | Positive supply rail - must be decoupled with 100 nF ceramic capacitor near pin |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger clock input | Enables reliable triggering with slow-rising clocks (e.g., RC-generated or microcontroller GPIO clocks) |
| Input clamp diodes | Permits safe interfacing to signals exceeding VCC using series current-limiting resistors |
| Asynchronous set/reset per section | Allows immediate state initialization or clearing without waiting for clock edge - critical for power-up sequencing |
| High noise immunity | CMOS input thresholds and balanced output drive reduce susceptibility to board-level switching noise |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - ensures robustness in noisy industrial environments |
Applications
| Industrial PLC I/O Expansion | Digital Signal Sampling Buffer |
|---|---|
Use Scenario: Capturing status signals from multiple field sensors (e.g., limit switches, photoelectric sensors) synchronized to a central controller clock. IC Role / Device Role / Timing Role: Dual D-flip-flop acts as synchronous input latch - one section captures sensor A/B states, the other holds enable/control bits. Use Value: Eliminates metastability risk during asynchronous signal sampling while maintaining channel independence and deterministic setup/hold timing. | Use Scenario: Temporarily storing ADC conversion results before transfer to a microcontroller via SPI or parallel bus. IC Role / Device Role / Timing Role: Data register holding 1-bit converted value until host read cycle begins - uses 1Q/1Q outputs for level-sensitive handshake signaling. Use Value: Provides clean, glitch-free data hold with sub-15 ns propagation delay, ensuring accurate capture even at 24 MHz system clocks. |
| State Machine Control Logic | LED Driver Timing Sequencer |
Use Scenario: Implementing a 2-bit counter or finite-state controller in resource-constrained embedded systems without FPGA or MCU resources. IC Role / Device Role / Timing Role: Core sequential element - 1D/1CP configures state transition; 1SD/1RD initializes known start state on power-up or fault recovery. Use Value: Enables deterministic, cycle-accurate state transitions with guaranteed 3 ns minimum hold time and 13 ns setup time at 6 V supply. | Use Scenario: Generating non-overlapping enable pulses for multiplexed LED matrix drivers or segmented display backplanes. IC Role / Device Role / Timing Role: Edge-triggered toggle generator - feedback from 1Q to 1D creates divide-by-2 clock; 2Q/2Q outputs drive complementary gate drivers. Use Value: Delivers precise 50% duty-cycle timing with <19 ns transition time, minimizing cross-conduction in high-side/low-side MOSFET pairs. |
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 |
|---|---|---|---|
| 74HCT74D | TTL-compatible inputs (VIH = 2.0 V min); identical SO14 package and pinout | Better suited for mixed 5 V TTL/CMOS systems where input voltage thresholds must match legacy logic | Select when interfacing directly to 74LS or microcontroller GPIOs without level translation |
| SN74LVC74APW | 3.3 V only (1.65–3.6 V), smaller TSSOP14 package, faster tpd = 5.2 ns typical | Optimized for low-voltage portable electronics; not drop-in compatible due to supply range and thermal profile | Choose for space-constrained, battery-powered designs requiring sub-6 ns propagation delay |
Compared with 74HCT74D and SN74LVC74APW, the 74HC74D/S200118 offers widest supply flexibility (2–6 V), highest temperature rating (+125 °C), and proven SO14 reliability - making it optimal for industrial control and wide-input-range legacy system upgrades.
Availability
74HC74D/S200118 is available at Aetrix Electronics and suitable for industrial automation, test equipment, and embedded control applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC74D/S200118 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 focused on essential efficiency technologies - delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HC74D/S200118 belongs to Nexperia's 74HC logic family, engineered for robust, low-power digital signal conditioning and state retention in harsh environments - emphasizing wide voltage operation, high noise immunity, and extended temperature capability.
FAQ
What is the maximum operating frequency of the 74HC74D/S200118?
The 74HC74D/S200118 supports a maximum clock frequency of 24 MHz at VCC = 6.0 V and Tamb = +125 °C, verified by fmax testing per JEDEC standards. At 4.5 V and +25 °C, it achieves up to 69 MHz. This performance is enabled by its 14 ns propagation delay and 6 ns output transition time, making the 74HC74D/S200118 suitable for high-speed digital control loops and real-time sampling applications.
Does the 74HC74D/S200118 support 3.3 V operation?
Yes, the 74HC74D/S200118 is fully specified for 3.3 V operation within its 2.0–6.0 V supply range. At VCC = 3.3 V, VIH = 2.31 V min and VIL = 1.09 V max ensure reliable CMOS-level interfacing with 3.3 V microcontrollers and FPGAs. Static and dynamic parameters - including tpd ≤ 25 ns and tsu ≥ 8 ns - are guaranteed across the full –40 °C to +125 °C range at 3.3 V, confirming robust 3.3 V system integration for the 74HC74D/S200118.
How does the Schmitt-trigger clock input benefit the 74HC74D/S200118?
The Schmitt-trigger action on the 1CP and 2CP inputs of the 74HC74D/S200118 provides hysteresis (typically 0.8 V at VCC = 5 V), allowing reliable clocking even with slow-rising or noisy waveforms - such as those from RC oscillators, mechanical switch debouncing circuits, or long PCB traces. This eliminates false triggering and reduces need for external signal conditioning, directly enhancing system reliability in electrically noisy industrial environments where the 74HC74D/S200118 is commonly deployed.
Can the 74HC74D/S200118 replace a 74LS74 in existing designs?
The 74HC74D/S200118 is not a direct functional replacement for the bipolar 74LS74 due to fundamental differences: LS logic uses TTL input thresholds (VIH ≈ 2.0 V), while HC requires CMOS thresholds (VIH ≈ 3.5 V at 5 V). However, with appropriate pull-up/pull-down or level-shifting, the 74HC74D/S200118 can upgrade LS-based systems - delivering lower power (μA vs mA ICC), higher noise immunity, and extended temperature range. Always verify input drive strength and timing margins before substituting the 74HC74D/S200118 in legacy LS designs.
What is the meaning of "S200118" in the part number 74HC74D/S200118?
The suffix "S200118" in 74HC74D/S200118 is a Nexperia internal date/batch code indicating manufacturing week/year - specifically, week 11 of 2020 (S200118 = S[year] [week]). It does not denote a functional variant or revision; the core device remains the standard 74HC74D in SO14 package per Rev. 9 datasheet. All electrical, thermal, and timing specifications for the 74HC74D/S200118 match those published for 74HC74D in the official Nexperia product data sheet.
74HC74D/S200118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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-SO
74HC74D/S200118 FAQ
1.How can I place an order for 74HC74D/S200118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC74D/S200118 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 74HC74D/S200118 reliable?
The price and inventory of 74HC74D/S200118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC74D/S200118 is usually 5 days.
3.What payment methods are accepted for 74HC74D/S200118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC74D/S200118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC74D/S200118?
74HC74D/S200118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC74D/S200118 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 74HC74D/S200118?
For technical support, including 74HC74D/S200118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC74D/S200118 requirements.
6.How does Aetrix verify that 74HC74D/S200118 is sourced from the original manufacturer or authorized distributors?
All 74HC74D/S200118 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 74HC74D/S200118 meets industry standards.
7.What is the process for return or replacement of 74HC74D/S200118?
All 74HC74D/S200118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC74D/S200118, 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 74HC74D/S200118 part is unused and in its original packaging.
Return procedure for 74HC74D/S200118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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