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Nexperia USA Inc. 74AHCT374PW,118
- Part No.:
- 74AHCT374PW,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHCT374PW,118.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,738
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Product details
Overview
74AHCT374PW,118 from Nexperia is an octal positive-edge-triggered D-type flip-flop with 3-state outputs, designed for bus-oriented data latching in mixed-voltage digital systems. It features TTL-compatible inputs (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), 20-pin TSSOP package, and operates from -40 °C to +125 °C. Used in microcontroller peripheral interfacing, address/data bus buffering, and industrial control logic.
For engineers reviewing the 74AHCT374PW,118 datasheet, 74AHCT374PW,118 pinout, 74AHCT374PW,118 application, or 74AHCT374PW,118 equivalent, key selection criteria include edge-triggered register behavior, 3-state output enable timing (ten ≤ 14.0 ns, tdis ≤ 14.0 ns @ CL = 50 pF), TTL-level input compatibility, and high-temperature operation up to +125 °C.
Technical Context
This device implements eight independent D-type flip-flops synchronized on the LOW-to-HIGH clock transition, with a common active-low 3-state output enable (OE) that isolates outputs without affecting internal state. Each flip-flop samples its D-input only during the clock edge, meeting set-up (tsu = 2.5 ns) and hold (th = 2.5 ns) requirements at VCC = 4.5–5.5 V.
The 74AHCT374 variant uses TTL-compatible input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V), enabling direct interface with legacy 5 V TTL logic while maintaining CMOS power efficiency. Its overvoltage-tolerant inputs (up to 5.5 V) support level translation in mixed-supply environments without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal D-type flip-flop with 3-state outputs, positive-edge triggered on CP |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems |
| Input Compatibility | TTL-level inputs (VIH ≥ 2.0 V, VIL ≤ 0.8 V) - eliminates need for level-shifting buffers |
| Propagation Delay (tpd) | 4.3–10.4 ns @ CL = 15–50 pF - supports >85 MHz operation in 50 pF load conditions |
| Enable/Disable Timing | ten ≤ 14.0 ns, tdis ≤ 14.0 ns @ CL = 50 pF - enables fast bus turnaround in multiplexed systems |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and under-hood applications |
| ESD Protection | HBM >2000 V, CDM >1000 V - enhances robustness in automated assembly and field operation |
Pinout & Package
TSSOP20 plastic thin shrink small outline package (SOT360-1), 20 leads, body width 4.4 mm, 0.65 mm pitch - optimized for high-density PCB layouts and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Active-low 3-state output enable | Drives all Q outputs to high-impedance when HIGH; no effect on internal flip-flop state |
| 2 (VCC) | Positive supply voltage | 4.5–5.5 V nominal; powers internal logic and output drivers |
| 3–4, 7–8, 13–14, 17–18 (D0–D7) | Data inputs | Asynchronous inputs sampled on rising CP edge; TTL-compatible thresholds |
| 5–6, 9, 12, 15–16, 19 (Q0–Q7) | 3-state flip-flop outputs | Driven HIGH/LOW or tri-stated based on OE and registered D-state |
| 10 (GND) | Ground reference | 0 V return path for supply and signal integrity; decoupling required near VCC/GND pair |
| 11 (CP) | Clock input | LOW-to-HIGH edge triggers simultaneous capture of all D inputs into respective registers |
| 20 (VCC) | Positive supply voltage | Same as Pin 2 - dual VCC pins reduce supply impedance and improve noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible input thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V - enables direct connection to 5 V TTL outputs without level shifters |
| Overvoltage-tolerant inputs | Withstands up to 5.5 V regardless of VCC - allows safe interfacing with higher-voltage buses or hot-swap scenarios |
| Fast 3-state control | ten ≤ 14.0 ns, tdis ≤ 14.0 ns @ CL = 50 pF - minimizes bus contention windows in shared-data-path systems |
| Extended temperature range | Specified from -40 °C to +125 °C - supports deployment in industrial automation, motor drives, and automotive non-safety ECUs |
| Low dynamic power | CPD = 12 pF - reduces switching current and heat generation in high-frequency bus applications |
Applications
| Microcontroller Bus Interface | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Latching parallel address/data signals between an MCU and external memory or peripheral ICs. IC Role / Device Role / Timing Role: Synchronizes asynchronous bus writes using CP edge; OE controls bidirectional bus direction. Use Value: Enables clean separation of address setup and data hold timing, eliminating race conditions in 8-bit parallel interfaces. |
Use Scenario: Isolating sensor input or actuator output lines in modular PLC backplanes. IC Role / Device Role / Timing Role: Registers sensor status bits and gates outputs via OE under PLC scan-cycle control. Use Value: Provides deterministic sampling at scan boundaries and prevents bus contention during module hot-swap or fault isolation. |
| Legacy System Data Translation | Test Equipment Signal Conditioning |
|
Use Scenario: Interfacing modern 3.3 V FPGA I/O banks to legacy 5 V TTL logic subsystems. IC Role / Device Role / Timing Role: Acts as a unidirectional level translator with registered timing - D inputs accept 5 V TTL, Q outputs drive 3.3 V CMOS loads. Use Value: Eliminates need for discrete resistor networks or dedicated level shifters while preserving setup/hold margins. |
Use Scenario: Capturing and holding test stimulus patterns in automated test equipment (ATE) channel drivers. IC Role / Device Role / Timing Role: Stores pattern data on CP edge; OE enables synchronized release to DUT pins across multiple channels. Use Value: Ensures sub-10 ns skew between 8 parallel output channels during high-speed functional testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AHCT374PWR | TTL-compatible inputs, same 20-pin TSSOP package, but TI's version specifies fmax = 130 MHz @ CL = 15 pF vs. Nexperia's 140 MHz | Identical bus-latching function; TI part has tighter AC specs at lower loads but identical DC thresholds | Select for designs requiring marginally faster propagation in light-load (<20 pF) systems |
| 74AHC374PW,118 | CMOS-level inputs (VIH = 3.85 V min), wider VCC range (2.0–5.5 V), but lacks TTL compatibility | Suitable for pure CMOS systems or mixed 3.3/5 V domains where input thresholds match host logic | Choose when interfacing to 3.3 V microcontrollers or FPGAs with CMOS I/O standards |
Compared with SN74AHCT374PWR, the 74AHCT374PW,118 offers superior high-temperature stability (same +125 °C rating) and tighter disable-time consistency across voltage corners; versus 74AHC374PW,118, it trades wider supply flexibility for guaranteed interoperability with legacy TTL signaling.
Availability
74AHCT374PW,118 is available at Aetrix Electronics and suitable for industrial control systems, test equipment design, and legacy system upgrades requiring stable component supply and long-term manufacturability.
Supply support for 74AHCT374PW,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, reliable logic, analog, and MOSFET solutions with focus on efficiency and miniaturization.
The 74AHCT series targets robust, drop-in replacements for legacy TTL logic in industrial, computing, and communications infrastructure - emphasizing interoperability, thermal resilience, and manufacturing longevity.
FAQ
What is the maximum clock frequency supported by the 74AHCT374PW,118?
The device supports up to 140 MHz at VCC = 4.5–5.5 V with 15 pF load, and 75 MHz at 50 pF load per the datasheet's fmax specifications. Real-world achievable frequency depends on PCB layout, termination, and fan-out; for sustained 100+ MHz operation, keep trace lengths short and use controlled-impedance routing.
Can the 74AHCT374PW,118 operate with a 3.3 V supply?
No - the 74AHCT374PW,118 is specified only for 4.5–5.5 V operation. Its TTL-compatible inputs require VIH ≥ 2.0 V, but internal logic and output drive strength are not characterized below 4.5 V. For 3.3 V systems, use the pin-compatible 74AHC374PW,118 instead.
How does the OE pin behave during power-up or brownout conditions?
OE is active-low and internally pulled down on power-up in most Nexperia logic devices, placing outputs in high-impedance state until firmware asserts OE low. However, no internal pull-down is guaranteed per datasheet - external 10 kΩ pull-down on OE is recommended to prevent bus contention during undervoltage events.
Is the 74AHCT374PW,118 suitable for automotive applications?
No - this part is not AEC-Q100 qualified and lacks automotive-grade screening, qualification testing, or guaranteed PPAP documentation. While rated for -40 °C to +125 °C, it is intended for industrial and commercial use only; automotive applications require explicitly qualified variants such as Nexperia's Automotive AHCT series.
74AHCT374PW,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 130 MHz
- Max Propagation Delay @ V, Max CL:
- 10.4ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74AHCT374PW,118 FAQ
1.How can I place an order for 74AHCT374PW,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT374PW,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 74AHCT374PW,118 reliable?
The price and inventory of 74AHCT374PW,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT374PW,118 is usually 5 days.
3.What payment methods are accepted for 74AHCT374PW,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT374PW,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT374PW,118?
74AHCT374PW,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT374PW,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 74AHCT374PW,118?
For technical support, including 74AHCT374PW,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT374PW,118 requirements.
6.How does Aetrix verify that 74AHCT374PW,118 is sourced from the original manufacturer or authorized distributors?
All 74AHCT374PW,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 74AHCT374PW,118 meets industry standards.
7.What is the process for return or replacement of 74AHCT374PW,118?
All 74AHCT374PW,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT374PW,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 74AHCT374PW,118 part is unused and in its original packaging.
Return procedure for 74AHCT374PW,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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