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Renesas 74ACT374FP-E
- Part No.:
- 74ACT374FP-E
- Manufacturer:
- Renesas
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
74ACT374FP-E.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
74ACT374FP-E from Renesas is an octal D-type flip-flop with 3-state outputs, TTL-compatible inputs, and positive-edge-triggered clock logic. It operates from 4.5 V to 5.5 V, delivers ±24 mA output drive, supports bus-oriented data latching in industrial control and digital instrumentation, and features common buffered Clock (CP) and Output Enable (OE) inputs.
For engineers reviewing the 74ACT374FP-E datasheet, 74ACT374FP-E pinout, 74ACT374FP-E application, or 74ACT374FP-E equivalent, this page provides verified functional specifications, package mapping to SOP-20 (FP-20DAV), truth table behavior, timing constraints including 90 MHz max clock frequency at VCC = 5.0 V, and real-world design implications for bus isolation and synchronous data capture.
Technical Context
The 74ACT374FP-E implements eight independent edge-triggered D flip-flops sharing a single buffered CP input and a common OE control line. Each flip-flop samples its Dn input on the low-to-high CP transition and holds the value until the next valid clock edge, satisfying setup (min 7.0 ns) and hold (min 1.5 ns) requirements at VCC = 5.0 V.
When OE is low, all eight Q outputs (O0–O7) drive actively with VOH ≥ 3.80 V and VOL ≤ 0.37 V at IOL/IOH = ±24 mA; when OE is high, outputs enter high-impedance state with IOZ ≤ ±5.0 µA across –40°C to +85°C. The device uses AC-characterized propagation delays (tPLH/tPHL ≤ 11.5 ns) and disable times (tHZ/tLZ ≤ 12.5 ns) under CL = 50 pF loading.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74ACT - TTL-compatible inputs, CMOS outputs, 5 V operation |
| Function | Octal D-type edge-triggered flip-flop with 3-state outputs |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V digital systems |
| Max Clock Frequency | 90 MHz at VCC = 5.0 V - supports high-speed synchronous data capture in bus interfaces |
| Output Drive Strength | ±24 mA - sufficient to drive multiple LSTTL loads or terminated transmission lines |
| Propagation Delay (CP→Q) | ≤11.5 ns - enables tight timing margins in 10 ns–20 ns clock domains |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
Pinout & Package
SOP-20 package (JEITA code FP-20DAV), 12.6 mm × 7.5 mm body, 0.65 mm pitch, Ni/Pd/Au plating, lead-free compliant (V suffix implied per note).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply rail - must be decoupled locally with 0.1 µF ceramic capacitor |
| 2–9 | D0–D7 | Data inputs - sampled on rising CP edge; TTL-compatible voltage thresholds |
| 10 | OE | Active-low 3-state enable - asserts high-impedance outputs when high |
| 11–18 | O0–O7 | True 3-state outputs - drive or float based on OE and stored Dn state |
| 19 | CP | Buffered positive-edge clock - triggers simultaneous latch of all D inputs |
| 20 | GND | Ground reference - requires low-inductance connection to minimize switching noise |
Key Features
| Feature | Design Value |
|---|---|
| TTL-Compatible Inputs | VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5.5 V - interoperable with legacy 74LS/TTL logic without level shifters |
| High-Speed Edge Triggering | tsu = 7.0 ns, th = 1.5 ns at VCC = 5.0 V - enables reliable sampling in fast synchronous buses |
| Robust 3-State Control | IOZ ≤ ±5.0 µA over full temperature range - prevents bus contention during output disable |
| Low Propagation Skew | tPLH/tPHL matching ≤ 1.5 ns - maintains data validity across all eight outputs in parallel paths |
| Industrial Temperature Range | –40°C to +85°C operation - validated for use in programmable logic controllers and test equipment |
Applications
| Industrial PLC I/O Modules | Digital Test Equipment Data Capture |
|---|---|
Use Scenario: Latching sensor status or actuator command signals in modular I/O backplanes with shared data buses. IC Role / Device Role / Timing Role: Synchronous data register holding parallel inputs until CPU read cycle; CP synchronized to system bus clock. Use Value: Enables deterministic sampling of 8-bit status words with guaranteed setup/hold timing and bus isolation via OE-controlled 3-state outputs. |
Use Scenario: Capturing parallel waveform samples from ADCs or logic analyzers before serial upload to host controller. IC Role / Device Role / Timing Role: High-speed data buffer staging sampled values on rising clock edges; OE used to gate output onto shared test bus only during valid transfer windows. Use Value: Supports 90 MHz sampling rates with sub-12 ns propagation delay, minimizing aperture uncertainty in time-critical measurement systems. |
| Embedded Controller Peripheral Interface | Legacy Bus Expansion Logic |
Use Scenario: Interfacing microcontroller GPIO ports to external peripherals requiring synchronized 8-bit parallel handshaking. IC Role / Device Role / Timing Role: Level-shifting and timing-synchronized interface between MCU and slower peripheral; CP driven by MCU timer output, OE controlled by address decode. Use Value: Eliminates need for discrete gating logic; TTL-compatible inputs accept direct MCU output, while ±24 mA drive supports longer trace runs. |
Use Scenario: Adding register-based expansion slots to ISA or similar legacy computer architectures with multiplexed address/data buses. IC Role / Device Role / Timing Role: Latching address or control bits during bus cycles; OE tied to slot-select signal to isolate inactive cards. Use Value: Provides pin-compatible upgrade path from 74LS374 with improved speed, lower power, and tighter timing specs for retro-computing hardware upgrades. |
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 |
|---|---|---|---|
| SN74ACT374N | DIP-20 package, same AC/DC specs, no lead-free plating | Through-hole prototyping or legacy board repair where SOP footprint unavailable | Select when mechanical mounting or hand-soldering is required; identical logic function and timing. |
| 74AC374FP-E | Lower drive (±24 mA vs ±24 mA), higher VIH (2.1 V min), no TTL compatibility | Low-power 3.3 V or mixed-voltage systems where input threshold alignment matters | Choose for 3.3 V–5 V hybrid designs needing reduced ICC (8 µA vs 80 µA quiescent) and relaxed input thresholds. |
Compared with SN74ACT374N and 74AC374FP-E, the 74ACT374FP-E uniquely combines TTL-compatible inputs with SOP-20 surface-mount packaging and industrial temperature rating, making it optimal for space-constrained, noise-immune, bus-isolated applications where legacy logic interfacing is required without level translation.
Availability
74ACT374FP-E is available at Aetrix Electronics and suitable for industrial automation, test instrumentation, and embedded peripheral interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 74ACT374FP-E 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
Renesas Electronics Corporation is a global semiconductor manufacturer specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HD74ACT374 product line was designed for high-reliability, bus-oriented digital logic applications requiring precise edge-triggered data capture, robust 3-state control, and interoperability with legacy TTL systems.
FAQ
What is the maximum clock frequency supported by the 74ACT374FP-E?
The 74ACT374FP-E supports a maximum clock frequency of 90 MHz at VCC = 5.0 V across the full operating temperature range (–40°C to +85°C), as specified in the AC Characteristics table. This value reflects guaranteed performance under CL = 50 pF loading and accounts for worst-case propagation delays (tPLH/tPHL ≤ 11.5 ns) and setup/hold timing margins. At 25°C, typical fmax reaches 160 MHz.
Does the 74ACT374FP-E have TTL-compatible inputs, and why does that matter?
Yes, the 74ACT374FP-E has TTL-compatible inputs, meaning VIH is guaranteed ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 5.5 V. This allows direct interfacing with legacy 74LS and other TTL-family logic without level-shifting circuitry, simplifying integration into mixed-technology systems and reducing BOM count and board area in industrial control and instrumentation designs using the 74ACT374FP-E.
How does the Output Enable (OE) pin function in the 74ACT374FP-E?
In the 74ACT374FP-E, the OE pin is an active-low control that places all eight outputs (O0–O7) into high-impedance state when driven high, regardless of clock or stored data state. When OE is low, outputs reflect the latched Dn values on the next rising CP edge. This enables safe bus sharing in multi-device systems - the 74ACT374FP-E only drives the bus when selected, preventing contention and signal corruption.
What package type is used for the 74ACT374FP-E, and what are its key mechanical features?
The 74ACT374FP-E uses the SOP-20 package with JEITA code FP-20DAV: 12.6 mm × 7.5 mm body, 0.65 mm lead pitch, Ni/Pd/Au plating, and lead-free compliance. Its compact footprint supports high-density PCB layouts, while the gull-wing leads provide reliable reflow soldering and mechanical stability. The package mass is 0.31 g, and thermal resistance (θJA) is optimized for industrial ambient conditions where the 74ACT374FP-E operates.
Can the 74ACT374FP-E operate at 3.3 V supply voltage?
No, the 74ACT374FP-E is not characterized or guaranteed for operation at 3.3 V. Its recommended operating supply range is 4.5 V to 5.5 V, and DC/AC specifications (including VIH/VIL thresholds, VOH/VOL levels, and fmax) are only validated within that range. For 3.3 V systems, the functionally similar 74AC374FP-E or 74LVC374A should be considered instead - the 74ACT374FP-E requires a stable 5 V rail to meet its published timing and drive specifications.
74ACT374FP-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74ACT374FP-E FAQ
1.How can I place an order for 74ACT374FP-E through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ACT374FP-E 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 74ACT374FP-E reliable?
The price and inventory of 74ACT374FP-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ACT374FP-E is usually 5 days.
3.What payment methods are accepted for 74ACT374FP-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ACT374FP-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ACT374FP-E?
74ACT374FP-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ACT374FP-E 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 74ACT374FP-E?
For technical support, including 74ACT374FP-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ACT374FP-E requirements.
6.How does Aetrix verify that 74ACT374FP-E is sourced from the original manufacturer or authorized distributors?
All 74ACT374FP-E 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 74ACT374FP-E meets industry standards.
7.What is the process for return or replacement of 74ACT374FP-E?
All 74ACT374FP-E units undergo pre-shipment inspection (PSI). If there is an issue with 74ACT374FP-E, 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 74ACT374FP-E part is unused and in its original packaging.
Return procedure for 74ACT374FP-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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