My Inquiry
My Account
Nexperia USA Inc. 74LVTH16374ABX,518
- Part No.:
- 74LVTH16374ABX,518
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 60-XFQFN Dual Rows, Exposed Pad
- Datasheet:
-
74LVTH16374ABX,518.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 60HXQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,177
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVTH16374ABX,518 from Nexperia is a 3.3 V 16-bit edge-triggered D-type flip-flop with 3-state outputs, dual independent clock (1CP/2CP) and output enable (1OE/2OE) control, ±32 mA/±64 mA drive capability, and bus-hold inputs. It operates across -40 °C to +85 °C and supports direct TTL-level interfacing in high-speed data latching applications such as memory address registration and bus isolation.
For engineers reviewing the 74LVTH16374ABX,518 datasheet, 74LVTH16374ABX,518 pinout, 74LVTH16374ABX,518 application, or 74LVTH16374ABX,518 equivalent, this page delivers verified functional architecture, TSSOP48 pin mapping, static/dynamic timing specs at 3.3 V, bus-hold behavior, and real-world substitution guidance for industrial bus interface design.
Technical Context
This device implements two independent 8-bit D-type flip-flop banks, each with dedicated clock and output-enable inputs, enabling flexible partitioning as either one 16-bit or two 8-bit registers. Each bank latches data on the LOW-to-HIGH transition of its respective clock input while meeting set-up (0.8 ns @ 3.3 V) and hold (0.1 ns @ 3.3 V) timing requirements.
The IOFF circuitry ensures partial power-down operation, and overvoltage-tolerant inputs (up to 5.5 V) allow safe interfacing with 5 V systems without level shifters. Bus-hold inputs eliminate external pull-ups on unused data lines - a feature exclusive to the LVTH variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.7 V to 3.6 V - enables stable operation across wide industrial rail tolerances, including noisy 3.3 V domains. |
| Max clock frequency | 150 MHz @ 3.3 V - supports high-throughput data capture in burst-mode memory interfaces and FIFO controllers. |
| Propagation delay | 1.5 ns to 5.0 ns (tPLH/tPHL) - ensures sub-5 ns timing margin for synchronous designs operating near 100+ MHz. |
| Output drive | +64 mA sink / -32 mA source - drives heavy capacitive loads (e.g., 50 pF buses) without external buffers. |
| Input voltage tolerance | Up to 5.5 V - permits direct connection to 5 V logic without clamping diodes or translators. |
| Bus-hold current | ±75 μA to ±135 μA - actively holds unused D-inputs at valid logic levels, eliminating board-level pull resistors. |
| Operating temperature | -40 °C to +85 °C - qualified for extended industrial environments including factory automation and telecom infrastructure. |
Pinout & Package
TSSOP48 package (SOT1134-2), plastic thin shrink small outline, 48 leads, body width 6.1 mm, 0.5 mm pitch - optimized for high-density PCB layouts with thermal and signal integrity advantages over SOIC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE (Pins 1, 24) | Active-low output enable | Independent control of 8-bit output banks; HIGH forces high-impedance state without affecting internal register state. |
| 1CP, 2CP (Pins 48, 25) | Clock input | Edge-sensitive (LOW-to-HIGH); triggers simultaneous latching of corresponding 8-bit D-inputs into Q-outputs. |
| 1D0–1D7 (Pins 47, 46, 44, 43, 41, 40, 38, 37) | Data input | Bus-hold enabled; retains last valid logic state when floating - eliminates need for external termination. |
| 2D0–2D7 (Pins 36, 35, 33, 32, 30, 29, 27, 26) | Data input | Identical bus-hold behavior as 1Dn; allows independent 8-bit data streams per bank. |
| 1Q0–1Q7 (Pins 2, 3, 5, 6, 8, 9, 11, 12) | Data output | 3-state capable; driven only when 1OE = LOW; compatible with 5 V tolerant bus loading. |
| 2Q0–2Q7 (Pins 13, 14, 16, 17, 19, 20, 22, 23) | Data output | 3-state capable; driven only when 2OE = LOW; electrically isolated from Bank 1 outputs. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed supply pins reduce IR drop and improve noise immunity across high-speed switching banks. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight ground pins provide low-inductance return paths, critical for maintaining signal integrity at >100 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 8-bit register banks | Enables independent clocking and output control - ideal for time-multiplexed address/data latching in multi-port memory systems. |
| Bus-hold inputs (LVTH only) | Eliminates external pull-up/pull-down resistors on unused D-lines, reducing BOM count and layout complexity. |
| IOFF partial power-down | Prevents current backflow during power sequencing or hot-swap events - essential for modular backplane designs. |
| 5.5 V overvoltage-tolerant inputs | Allows direct connection to legacy 5 V logic without level-shifting components - simplifies mixed-voltage system integration. |
| Live insertion/extraction support | IOFF and power-up 3-state ensure safe hot-plug operation in field-replaceable modules and carrier boards. |
Applications
| Memory Address Latching | Industrial Bus Isolation |
|---|---|
|
Use Scenario: Capturing and holding microcontroller address bus signals before driving off-chip SRAM or flash memory. IC Role / Device Role / Timing Role: Edge-triggered D-flip-flop synchronizing asynchronous address transitions to system clock domain with precise setup/hold compliance. Use Value: Eliminates metastability risk and ensures deterministic address sampling at up to 150 MHz, supporting high-bandwidth memory access. |
Use Scenario: Isolating PLC I/O expansion modules from main controller bus during firmware updates or fault recovery. IC Role / Device Role / Timing Role: 3-state controlled register buffering bidirectional data flow while maintaining signal integrity across noisy industrial environments. Use Value: Prevents bus contention during hot-swap events via independent OE control and IOFF protection, ensuring system uptime. |
| Telecom Line Card Interface | Test Equipment Signal Conditioning |
|
Use Scenario: Registering configuration data from FPGA to analog front-end ICs in multi-channel base station transceivers. IC Role / Device Role / Timing Role: Dual-bank latch providing synchronized parallel load of calibration coefficients with independent clock domains per channel group. Use Value: Enables concurrent update of 16-bit coefficient sets without inter-bank skew, improving RF calibration accuracy and repeatability. |
Use Scenario: Capturing high-speed digital stimulus patterns from pattern generators before routing to DUT under test. IC Role / Device Role / Timing Role: High-drive 3-state buffer isolating generator output from variable DUT input capacitance and preventing signal degradation. Use Value: Delivers clean, low-jitter edges with ±64 mA drive strength - maintains waveform fidelity up to 150 MHz across mismatched loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit edge-triggered D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16374ADGGR | No bus-hold; lower drive (±24 mA); 1.65–3.6 V supply range | Lacks input retention - requires external pull resistors on unused pins; less robust in noisy environments | Select when cost sensitivity outweighs bus-hold requirement and system uses full 16-bit width with no floating inputs. |
| 74ALVCH16374PAG | Higher speed (200 MHz max); 2.3–3.6 V supply; no bus-hold; different pinout (TSSOP56) | Requires PCB redesign due to incompatible footprint; lacks LVTH's 5.5 V input tolerance | Choose only when >150 MHz operation is mandatory and 5 V compatibility is not required. |
Compared with SN74LVC16374ADGGR and 74ALVCH16374PAG, the 74LVTH16374ABX,518 uniquely combines bus-hold inputs, 5.5 V tolerant I/O, and TSSOP48 compatibility - making it optimal for industrial upgrades where reliability and pinout retention are critical.
Availability
74LVTH16374ABX,518 is available at Aetrix Electronics and suitable for memory interface design, industrial bus isolation, telecom line card synchronization, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVTH16374ABX,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, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial, automotive, and computing markets.
The 74LVTH series targets high-speed, mixed-voltage digital interfacing - designed specifically for robust 3.3 V operation with 5 V tolerance, bus-hold, and hot-swap readiness in demanding embedded systems.
FAQ
What is the function of the bus-hold feature in the 74LVTH16374ABX,518?
The bus-hold circuit actively maintains the last valid logic state on unused D-inputs using ±75 μA to ±135 μA feedback current - eliminating external pull-up or pull-down resistors. This reduces component count, PCB area, and potential noise coupling from discrete terminations, especially in high-density industrial control modules.
Can the 74LVTH16374ABX,518 be used in a 5 V system?
Yes - its inputs tolerate up to 5.5 V regardless of VCC (2.7–3.6 V), enabling direct connection to 5 V logic families without level shifters. However, outputs swing between GND and VCC (not 5 V), so they must drive only 3.3 V–compatible receivers unless external translation is added.
How does the IOFF circuit benefit hot-swap applications?
IOFF disables output current flow when VCC = 0 V, preventing back-driving of powered subsystems during live insertion or extraction. This protects upstream drivers and avoids bus contention - a key requirement for modular telecom and server backplane designs compliant with IEEE 1101.10 standards.
What is the significance of dual clock and output enable inputs?
Dual clocks (1CP/2CP) and enables (1OE/2OE) allow independent control of two 8-bit banks - enabling time-multiplexed operations like alternating memory address latching or separate control of data and control bus segments. This eliminates the need for two discrete 8-bit devices, saving space and reducing interconnect skew.
74LVTH16374ABX,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVTH
- 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:
- 150 MHz
- Max Propagation Delay @ V, Max CL:
- 5ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Current - Quiescent (Iq):
- 120 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 60-HXQFNU (4x6)
74LVTH16374ABX,518 FAQ
1.How can I place an order for 74LVTH16374ABX,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH16374ABX,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 74LVTH16374ABX,518 reliable?
The price and inventory of 74LVTH16374ABX,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH16374ABX,518 is usually 5 days.
3.What payment methods are accepted for 74LVTH16374ABX,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH16374ABX,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVTH16374ABX,518?
74LVTH16374ABX,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH16374ABX,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 74LVTH16374ABX,518?
For technical support, including 74LVTH16374ABX,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH16374ABX,518 requirements.
6.How does Aetrix verify that 74LVTH16374ABX,518 is sourced from the original manufacturer or authorized distributors?
All 74LVTH16374ABX,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 74LVTH16374ABX,518 meets industry standards.
7.What is the process for return or replacement of 74LVTH16374ABX,518?
All 74LVTH16374ABX,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH16374ABX,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 74LVTH16374ABX,518 part is unused and in its original packaging.
Return procedure for 74LVTH16374ABX,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVTH16374ABX,518 Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
