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onsemi MC74LVX374DTR2
- Part No.:
- MC74LVX374DTR2
- Manufacturer:
- onsemi
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC74LVX374DTR2.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,281
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Product details
Overview
MC74LVX374DTR2 from onsemi is an octal D-type flip-flop with 3-state outputs and 5V-tolerant inputs, designed for level-shifting between 3.3 V and 5.0 V systems. It operates at up to 160 MHz (typ), features 20-pin TSSOP package, 3.6 V max supply, and supports industrial temperature range (−40°C to +85°C) in data path buffering and bus interface applications.
For engineers reviewing the MC74LVX374DTR2 datasheet, pinout, applications, or equivalent options, key selection criteria include 3-state output timing (tPZL/tPHZ ≤14.5 ns), input voltage tolerance (up to 7.0 V), propagation delay (6.7 ns typ at 3.3 V), and SOIC/TSSOP package compatibility for board space-constrained digital logic designs.
Technical Context
The MC74LVX374DTR2 implements eight edge-triggered D-type latches synchronized to the rising edge of CP, with independent 3-state control via OE. Its CMOS architecture ensures balanced tPLH/tPHL delays and low-noise operation (VOLP ≤0.8 V).
Input tolerance to 7.0 V enables direct interfacing with legacy 5 V logic while powered from 2.0–3.6 V supplies. The device guarantees latch-up immunity >300 mA and ESD robustness (HBM >2000 V), supporting reliable operation in mixed-voltage embedded control buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.0 V to 3.6 V - Enables operation in modern low-voltage digital systems while maintaining compatibility with 3.3 V I/O standards. |
| Max Clock Frequency | 160 MHz (typ at VCC = 3.3 V) - Supports high-speed data capture in memory interfaces and synchronous bus controllers. |
| Propagation Delay | 6.7 ns (tPLH/tPHL, VCC = 3.3 V, CL = 15 pF) - Ensures tight timing margins in multi-bit register chains. |
| 3-State Enable/Disable Time | tPZL/tPHZ ≤14.5 ns (VCC = 3.3 V) - Allows rapid bus arbitration and dynamic output isolation without signal contention. |
| Input Voltage Tolerance | −0.5 V to +7.0 V - Permits safe connection to 5 V sources without external level shifters in mixed-supply systems. |
| Operating Temperature | −40°C to +85°C - Qualified for industrial-grade deployment in programmable logic controllers and motor drive control modules. |
| Quiescent Current | ICC ≤4.0 µA (max at TA = 25°C) - Minimizes standby power in battery-backed or energy-sensitive applications. |
Pinout & Package
TSSOP-20 (Case 948E) surface-mount package with 0.65 mm pitch, 6.5 mm × 4.4 mm footprint, and exposed thermal pad not present. Pin 1 marked by notch or dot; pin 10 = GND, pin 20 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 19–20 | O0–O7, VCC | 3-state outputs and positive supply - Outputs enter high-impedance state when OE = high; VCC powers internal logic and output drivers. |
| 2–9 | D0–D7 | Data inputs - Sampled on rising edge of CP; tolerate up to 7.0 V regardless of VCC level. |
| 10 | GND | Ground reference - Common return path for all internal circuitry and output current sinks. |
| 11–12 | CP, OE | Clock pulse and output enable - CP triggers synchronous data capture; OE controls global 3-state output driver enable/disable. |
| 13–18 | O0–O7 | 3-state outputs - Drive bus lines when OE = low; float to high-Z when OE = high to prevent contention. |
Key Features
| Feature | Design Value |
|---|---|
| 5V-tolerant inputs | Supports direct connection to 5 V logic without external resistors or translators in mixed-voltage FPGA or microcontroller peripheral buses. |
| Low-noise output switching | VOLP ≤0.8 V ensures minimal ground bounce and crosstalk in dense PCB layouts with shared power/ground planes. |
| Balanced propagation delays | tPLH/tPHL matching ≤1.5 ns skew enables deterministic timing across all eight bits in parallel data paths. |
| Power-down input protection | Inputs remain protected against damage during power sequencing or partial power-down states, critical for hot-swap capable systems. |
| Pb-free & RoHS-compliant | Meets environmental compliance requirements for industrial and automotive electronics manufacturing without lead-based solder concerns. |
Applications
| Industrial PLC I/O Expansion | FPGA Peripheral Interface |
|---|---|
Use Scenario: Expanding digital I/O capacity of programmable logic controllers using parallel bus architecture. IC Role / Device Role / Timing Role: Octal register buffers data between CPU bus and isolated field I/O modules, synchronized to system clock. Use Value: 3-state outputs allow multiple MC74LVX374DTR2 devices to share a common backplane bus without contention. | Use Scenario: Interfacing FPGA GPIO banks to external 5 V sensors or actuators with level translation. IC Role / Device Role / Timing Role: Bidirectional voltage translator and data latch, enabling FPGA core logic (3.3 V) to drive 5 V peripherals safely. Use Value: 7.0 V input tolerance eliminates need for discrete level-shifter ICs, reducing BOM count and layout area. |
| Memory Address Latching | Microcontroller Bus Buffering |
Use Scenario: Capturing and holding address bits for static RAM or EPROM access in legacy 8-bit microprocessor systems. IC Role / Device Role / Timing Role: Edge-triggered address register that isolates address bus during read/write cycles. Use Value: 6.7 ns propagation delay ensures setup/hold timing compliance with fast SRAM access times (≤15 ns). | Use Scenario: Isolating and driving multiplexed data/address buses in ARM Cortex-M based motor control boards. IC Role / Device Role / Timing Role: Output-enable controlled bus driver for time-multiplexed peripheral communication. Use Value: tPZL ≤14.5 ns enables rapid bus turnaround between ADC reads and DAC writes without dead cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop with 3-state output applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC374APWR | Lower max fmax (150 MHz typ), 1.65–3.6 V supply range, no 5 V input tolerance. | Requires external clamping for 5 V inputs; suitable only in pure 3.3 V systems. | Select when cost sensitivity outweighs mixed-voltage interface needs and board space allows extra protection components. |
| 74LVX374M | SOIC-20 package (Case 751D), identical electrical specs, same marking prefix LVX374. | No footprint change required but larger PCB area; thermal performance differs due to package geometry. | Choose for legacy through-hole or reflow-compatible SOIC assembly where TSSOP handling is impractical. |
Compared with SN74LVC374APWR and 74LVX374M, the MC74LVX374DTR2 uniquely combines 5 V input tolerance with TSSOP-20 compactness and 160 MHz speed-making it optimal for space-constrained, mixed-voltage industrial control nodes requiring zero external level-shifting components.
Availability
MC74LVX374DTR2 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, FPGA peripheral interface, and microcontroller bus buffering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74LVX374DTR2 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient technologies for automotive, industrial, cloud, and IoT applications.
The MC74LVX374DTR2 belongs to the LVX low-voltage logic family, engineered for interoperability between 3.3 V and 5 V systems while delivering high-speed performance and robust ESD/latch-up immunity in industrial environments.
FAQ
What is the maximum clock frequency supported by the MC74LVX374DTR2?
The MC74LVX374DTR2 supports a maximum clock frequency of 160 MHz (typical) at VCC = 3.3 V with CL = 15 pF. At VCC = 2.7 V, the typical maximum frequency drops to 115 MHz. These values are measured under specified AC test conditions and must be validated against actual load and PCB trace capacitance in the target design. The MC74LVX374DTR2 datasheet specifies guaranteed minimums across temperature and voltage ranges.
Does the MC74LVX374DTR2 support 5 V logic inputs while operating at 3.3 V supply?
Yes, the MC74LVX374DTR2 supports 5 V-tolerant inputs - its Vin rating extends to 7.0 V, allowing safe connection to 5 V signal sources even when VCC is as low as 2.0 V. This eliminates external level-shifting components in mixed-voltage systems. The MC74LVX374DTR2 maintains full functionality and timing specifications under this condition per its recommended operating conditions table.
What is the function of the OE pin on the MC74LVX374DTR2?
The OE (Output Enable) pin on the MC74LVX374DTR2 controls the 3-state output drivers. When OE is low, outputs O0–O7 reflect the registered D0–D7 values on the next rising CP edge. When OE is high, all eight outputs enter high-impedance state regardless of CP or D inputs. This enables bus sharing and prevents signal contention in multi-device systems. The MC74LVX374DTR2 specifies tPZL/tPHZ timing for OE transitions.
Is the MC74LVX374DTR2 RoHS compliant and Pb-free?
Yes, the MC74LVX374DTR2 is Pb-free and RoHS compliant, as confirmed in the onsemi datasheet revision 5 (December 2024). The "G" suffix in the ordering code (e.g., MC74LVX374DTR2G) explicitly denotes Pb-free packaging. The device meets EU Directive 2011/65/EU requirements and is suitable for environmentally regulated industrial and consumer electronics production.
What package type does the MC74LVX374DTR2 use?
The MC74LVX374DTR2 uses a TSSOP-20 (Thin Shrink Small Outline Package) with Case 948E outline, 0.65 mm lead pitch, and dimensions of 6.5 mm × 4.4 mm. It is a surface-mount, gull-wing leaded package optimized for automated assembly and high-density PCB layouts. The MC74LVX374DTR2 pinout matches industry-standard 20-lead TSSOP logic devices, facilitating drop-in replacement where package footprint permits.
MC74LVX374DTR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74LVX
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 95 MHz
- Max Propagation Delay @ V, Max CL:
- 14.1ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 2V ~ 3.6V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 4 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
MC74LVX374DTR2 FAQ
1.How can I place an order for MC74LVX374DTR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74LVX374DTR2 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 MC74LVX374DTR2 reliable?
The price and inventory of MC74LVX374DTR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74LVX374DTR2 is usually 5 days.
3.What payment methods are accepted for MC74LVX374DTR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74LVX374DTR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74LVX374DTR2?
MC74LVX374DTR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74LVX374DTR2 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 MC74LVX374DTR2?
For technical support, including MC74LVX374DTR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74LVX374DTR2 requirements.
6.How does Aetrix verify that MC74LVX374DTR2 is sourced from the original manufacturer or authorized distributors?
All MC74LVX374DTR2 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 MC74LVX374DTR2 meets industry standards.
7.What is the process for return or replacement of MC74LVX374DTR2?
All MC74LVX374DTR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC74LVX374DTR2, 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 MC74LVX374DTR2 part is unused and in its original packaging.
Return procedure for MC74LVX374DTR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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