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Nexperia USA Inc. 74LVCH16374ABX,518
- Part No.:
- 74LVCH16374ABX,518
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 60-XFQFN Dual Rows, Exposed Pad
- Datasheet:
-
74LVCH16374ABX,518.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 60HXQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,774
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Product details
Overview
74LVCH16374ABX,518 from Nexperia is a 16-bit edge-triggered D-type flip-flop with dual 8-bit clock and output-enable control, 3-state outputs, 5 V-tolerant inputs (up to 5.5 V), bus hold on data inputs, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V supply and supports mixed-voltage interfacing between 3.3 V and 5 V systems in high-density data latching applications such as memory address/data buffering in industrial controllers.
For engineers reviewing the 74LVCH16374ABX,518 datasheet, 74LVCH16374ABX,518 pinout, 74LVCH16374ABX,518 application, or 74LVCH16374ABX,518 equivalent, this device delivers deterministic edge-triggered storage with sub-5 ns propagation delay at 3.3 V, dual independent 8-bit channel control, and robust ESD immunity (HBM >2000 V) - critical for reliable signal integrity in noise-prone embedded bus architectures.
Technical Context
This device implements two independent 8-bit D-type flip-flop banks, each with dedicated clock (1CP/2CP) and 3-state output enable (1OE/2OE), enabling flexible partitioning as either one 16-bit or two synchronized 8-bit registers. Schmitt-trigger inputs tolerate slow-rising signals, while bus hold circuitry maintains valid logic states on un-driven data inputs without external pull-ups.
The IOFF feature actively disables outputs when VCC = 0 V, blocking backflow current during partial power-down sequences. Input overvoltage tolerance (up to 5.5 V) and compatibility with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C ensure interoperability across 1.65–3.6 V supply domains in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | 16-bit edge-triggered D-type flip-flop with dual 8-bit control |
| Supply Voltage Range | 1.2 V to 3.6 V - enables operation in ultra-low-power and standard 3.3 V systems |
| Input Voltage Tolerance | Up to 5.5 V - allows direct interface with 5 V logic without level shifters |
| Propagation Delay (tpd) | 1.5 ns (min) to 5.4 ns (max) at VCC = 3.0–3.6 V - supports >120 MHz clock rates |
| IOFF Leakage Current | ±10 μA max at VCC = 0 V - prevents damaging backflow during hot-swap or partial power-down |
| Bus Hold Current | ±75 μA at VCC = 3.0 V - sustains stable logic levels on floating data inputs |
| ESD Protection | HBM >2000 V, CDM >1000 V - meets industrial-grade robustness requirements |
Pinout & Package
TSSOP48 plastic thin shrink small outline package (SOT362-1), 48-pin, body width 6.1 mm, lead pitch 0.5 mm, designed for high-density PCB layouts with low-inductance multiple VCC/GND pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE (Pins 1, 24) | Active-low output enable | Individually disables 8-bit output banks into high-impedance state without affecting internal register state |
| 1CP, 2CP (Pins 48, 25) | Positive-edge clock input | Triggers synchronous capture of D-inputs on LOW-to-HIGH transition; independent per 8-bit bank |
| 1D0–1D7 (Pins 47, 46, 44, 43, 41, 40, 38, 37) | Data input (Bank 1) | Bus hold enabled - eliminates need for external pull resistors on unused or unterminated lines |
| 2D0–2D7 (Pins 36, 35, 33, 32, 30, 29, 27, 26) | Data input (Bank 2) | Same bus hold functionality as Bank 1; supports independent 8-bit data flow |
| 1Q0–1Q7 (Pins 2, 3, 5, 6, 8, 9, 11, 12) | Data output (Bank 1) | 3-state outputs with fast enable/disable timing (ten ≤ 6.5 ns, tdis ≤ 6.5 ns at 3.3 V) |
| 2Q0–2Q7 (Pins 13, 14, 16, 17, 19, 20, 22, 23) | Data output (Bank 2) | Matched timing characteristics to Bank 1; output skew ≤ 1.5 ns ensures synchronous bus behavior |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed supply pins minimize voltage drop and ground bounce in high-speed switching |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight ground pins provide low-impedance return paths for all I/O and core logic |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit banks | Enables flexible configuration as two synchronized 8-bit latches or one 16-bit register with separate clock/enable control |
| 5 V-tolerant inputs | Accepts 5 V logic signals while powered from 1.2–3.6 V supply - eliminates external level translators in mixed-voltage designs |
| Bus hold on data inputs | Maintains valid logic state on floating D-lines without external biasing - reduces BOM count and layout complexity |
| IOFF partial power-down | Automatically disables outputs and blocks backflow current when VCC = 0 V - essential for hot-plug and power-gating systems |
| Schmitt-trigger inputs | Provides hysteresis (≥0.3 V typical) to reject noise and accommodate slow-rising signals from mechanical switches or long traces |
Applications
| Industrial PLC I/O Expansion | Memory Interface Buffering |
|---|---|
Use Scenario: Latching parallel sensor data from 16-bit analog input modules before CPU readback. IC Role / Device Role / Timing Role: Edge-triggered data capture synchronizing asynchronous fieldbus inputs to the controller's clock domain. Use Value: Dual 8-bit enables independent sampling of analog channel groups; bus hold prevents metastability during module hot-swap. |
Use Scenario: Isolating and latching address/data bus signals between FPGA and legacy SRAM in test equipment. IC Role / Device Role / Timing Role: Bidirectional bus latch providing controlled timing margin between mismatched clock domains. Use Value: 5 V tolerance allows direct connection to older 5 V SRAM; sub-5 ns tpd preserves setup/hold timing at 100+ MHz bus speeds. |
| Automated Test Equipment (ATE) Pattern Generator | Industrial Display Controller Interface |
Use Scenario: Holding precise digital stimulus patterns for DUT testing under variable temperature conditions. IC Role / Device Role / Timing Role: High-reliability storage element maintaining pattern integrity across -40 °C to +125 °C ambient range. Use Value: Guaranteed operation to +125 °C and HBM >2000 V ESD withstand support repeatable test cycles in harsh environments. |
Use Scenario: Interfacing FPGA video output to 16-bit RGB parallel LCD driver with variable refresh rate. IC Role / Device Role / Timing Role: Synchronizing pixel data to display controller clock while isolating FPGA I/O from panel EMI. Use Value: Low-output skew (<1.5 ns) ensures tight inter-channel timing alignment required for color fidelity in high-resolution displays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16374ADGGR | No bus hold; lower ESD rating (HBM >1500 V); same TSSOP48 package and pinout | Lacks bus hold - requires external pull resistors on unused inputs; less robust in noisy factory-floor environments | Select when cost sensitivity outweighs need for bus hold and enhanced ESD protection |
| 74ALVCH16374T | Higher speed (tpd ≤ 3.2 ns at 3.3 V); wider VCC range (1.65–3.6 V); no IOFF support | Missing IOFF - unsuitable for partial power-down systems; better for high-frequency clock distribution only | Select only when maximum speed is critical and full power-down sequencing is not required |
Compared with SN74LVC16374ADGGR and 74ALVCH16374T, the 74LVCH16374ABX,518 uniquely combines bus hold, IOFF, and 5 V tolerance in a single 16-bit latch - making it the only option qualified for mixed-voltage, hot-swap-capable, and noise-immune industrial control interfaces.
Availability
74LVCH16374ABX,518 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, memory interface buffering, automated test equipment pattern generation, and industrial display controller interface requiring stable component supply across extended temperature and mixed-voltage operating conditions.
Supply support for 74LVCH16374ABX,518 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 miniaturization in industrial, automotive, and consumer applications.
The 74LVCH16374ABX,518 belongs to Nexperia's advanced LVC/LVCH logic family, engineered specifically for robust mixed-voltage interfacing, partial power-down resilience, and high-density PCB integration in mission-critical industrial control systems.
FAQ
Does 74LVCH16374ABX,518 support true bidirectional data flow?
No - it is a unidirectional D-type flip-flop with separate data inputs (D) and outputs (Q). Data flows only from D inputs to Q outputs on clock edges; there is no internal feedback path or direction-control pin. For bidirectional bus transceivers, consider dedicated 74LVC16245 or similar devices.
Can 1OE and 2OE be tied together for unified 16-bit control?
Yes - connecting 1OE and 2OE to a common signal enables simultaneous 16-bit 3-state control. However, doing so forfeits independent bank control; both 8-bit sections will enable/disable together, eliminating the flexibility to stagger output timing or isolate fault domains.
What is the maximum clock frequency supported at 1.8 V supply?
At VCC = 1.8 V (within JESD8-7A range), the maximum guaranteed clock frequency is 100 MHz (fmax min = 80 MHz over -40 °C to +125 °C), based on tW (clock pulse width) ≥ 5.0 ns and propagation delay ≤ 13.5 ns. Operation above this requires characterization at system level.
Is the bus hold feature active on all inputs or only data pins?
Bus hold is implemented only on data inputs (1D0–1D7 and 2D0–2D7), as explicitly stated in Table 6 footnotes. Control inputs (1CP, 2CP, 1OE, 2OE) lack bus hold and must be actively driven or externally terminated to avoid undefined states.
74LVCH16374ABX,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVCH
- Package/Case:
- 60-XFQFN Dual Rows, Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Clock Frequency:
- 300 MHz
- Max Propagation Delay @ V, Max CL:
- 5.4ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Current - Quiescent (Iq):
- 20 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-HXQFNU (4x6)
74LVCH16374ABX,518 FAQ
1.How can I place an order for 74LVCH16374ABX,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH16374ABX,518 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 74LVCH16374ABX,518 reliable?
The price and inventory of 74LVCH16374ABX,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH16374ABX,518 is usually 5 days.
3.What payment methods are accepted for 74LVCH16374ABX,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH16374ABX,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH16374ABX,518?
74LVCH16374ABX,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH16374ABX,518 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 74LVCH16374ABX,518?
For technical support, including 74LVCH16374ABX,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH16374ABX,518 requirements.
6.How does Aetrix verify that 74LVCH16374ABX,518 is sourced from the original manufacturer or authorized distributors?
All 74LVCH16374ABX,518 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 74LVCH16374ABX,518 meets industry standards.
7.What is the process for return or replacement of 74LVCH16374ABX,518?
All 74LVCH16374ABX,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH16374ABX,518, 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 74LVCH16374ABX,518 part is unused and in its original packaging.
Return procedure for 74LVCH16374ABX,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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