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NXP Semiconductors 74ALVCH16374DGG:51

Name: 74ALVCH16374DGG:51
Brand: NXP Semiconductors
SKU: 74ALVCH16374DGG:51
Price: 2.40 USD
Availability: InStock
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Part No.:: 74ALVCH16374DGG:51

Manufacturer:: NXP Semiconductors

Category:: Flip Flops

Package:: 48-TFSOP (0.240", 6.10mm Width)

Datasheet:: 74ALVCH16374DGG:51.pdf

Description:: IC FF D-TYPE DUAL 8BIT 48TSSOP

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Product details

Overview

74ALVCH16374DGG:51 from Nexperia is a 16-bit edge-triggered D-type flip-flop with dual 8-bit sections, 3-state outputs, bus-hold inputs, and operation across 1.2 V to 3.6 V supply. It features separate clock (CP) and output enable (OE) per section, low propagation delay (as low as 2.4 ns at 3.3 V), and ±24 mA drive capability - used in high-speed data latching and bus interface applications in industrial computing and embedded control systems.

For engineers reviewing the 74ALVCH16374DGG:51 datasheet, 74ALVCH16374DGG:51 pinout, 74ALVCH16374DGG:51 application, or 74ALVCH16374DGG:51 equivalent, this page delivers verified functional architecture, TSSOP48 package mapping, JEDEC JESD8-B compliance, bus-hold input behavior, and real-world timing parameters including t_su = 0.2 ns and t_pd = 3.4 ns at 3.3 V.

Technical Context

The 74ALVCH16374DGG:51 implements two independent 8-bit D-flip-flop sections, each with dedicated LOW-to-HIGH edge-triggered clock (1CP/2CP) and active-LOW output enable (1OE/2OE). Data latching occurs only on valid CP transitions meeting set-up (t_su ≥ 0.2 ns) and hold (t_h ≥ 0 ns) requirements at V_CC = 3.0–3.6 V.

All 16 data inputs integrate bus-hold circuitry eliminating external pull resistors; outputs switch between driven logic states and high-impedance OFF-state without affecting internal flip-flop state. The device supports direct TTL-level interfacing and drives 50 Ω transmission lines up to 85 °C with controlled ground bounce via multiple low-inductance V_CC/GND pins.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply voltage range	1.2 V to 3.6 V - enables single-rail operation across 1.8 V, 2.5 V, and 3.3 V system domains without level shifters.
Propagation delay (t_pd)	3.4 ns max at V_CC = 3.0–3.6 V - supports >200 MHz clock rates in synchronous bus interfaces.
Output drive strength	±24 mA at V_CC = 3.0 V - sufficient to directly drive 50 Ω transmission lines or fan-out to 10+ CMOS loads.
Bus-hold input current	±75 μA at V_CC = 3.0 V - maintains stable logic state on floating inputs without external biasing components.
Set-up time (t_su)	0.2 ns min at V_CC = 3.0–3.6 V - allows tight timing margins in high-speed parallel data capture paths.
Operating temperature	−40 °C to +85 °C - qualified for industrial-grade embedded and computing environments.
Package	TSSOP48 (SOT362-1), 6.1 mm body width - surface-mount compatible with standard reflow profiles and PCB space-constrained designs.

Pinout & Package

TSSOP48 package (SOT362-1), plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm pitch - optimized for thermal performance and signal integrity in dense PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
1, 24	1OE, 2OE	Active-LOW output enable per 8-bit section - controls high-impedance state independently without altering stored data.
2–12, 13–23	1Q0–1Q7, 2Q0–2Q7	3-state outputs - provide bidirectional bus isolation when OE is HIGH; drive strength configurable by load and V_CC.
4, 10, 15, 21, 28, 34, 39, 45	GND	Eight ground terminals - reduce ground bounce and improve noise immunity in high-speed switching.
7, 18, 31, 42	V_CC	Four power supply pins - minimize IR drop and supply impedance across the die for consistent timing.
47–37, 36–26	1D0–1D7, 2D0–2D7	Data inputs with integrated bus-hold - retain last valid logic state when un-driven, removing need for external pull resistors.
48, 25	1CP, 2CP	Edge-triggered clock inputs - sample D-inputs on LOW-to-HIGH transition only; require minimum pulse width of 1.4 ns at 3.3 V.

Key Features

Feature	Design Value
Wide V_CC range (1.2–3.6 V)	Enables interoperability across legacy 2.5 V and modern 1.8 V/3.3 V logic families without voltage translation.
MULTIBYTE flow-through pinout	Minimizes PCB trace skew between corresponding D/Q pairs - critical for parallel data bus timing closure.
Bus-hold on all data inputs	Eliminates 16 external pull-up/pull-down resistors, reducing BOM count, board area, and potential signal integrity issues.
Low-inductance V_CC/GND pin distribution	Reduces simultaneous switching noise (SSN) and improves jitter performance in multi-bit latch applications.
JEDEC JESD8-B compliance	Guarantees interoperability with industry-standard 2.5 V/3.3 V logic interfaces and test equipment.

Applications

Industrial PLC I/O Expansion	High-Speed Memory Interface Buffer
Use Scenario: Latching parallel sensor data from analog-to-digital converters before CPU read cycles in programmable logic controllers. IC Role / Device Role / Timing Role: 16-bit synchronous data register capturing 16-channel ADC output on rising clock edge; 3-state outputs isolate bus during CPU access. Use Value: Bus-hold inputs prevent floating states during ADC conversion gaps; 3.4 ns t_pd ensures sub-5 ns sampling-to-read latency at 3.3 V.	Use Scenario: Isolating and synchronizing address/data lines between FPGA memory controller and SRAM/SDRAM modules. IC Role / Device Role / Timing Role: Dual-section D-flip-flop providing clock-domain crossing and bus contention control between controller and memory banks. Use Value: Independent OE per section enables staggered memory bank activation; ±24 mA drive sustains signal integrity over 50 Ω traces up to 200 MHz.
Automated Test Equipment (ATE) Pattern Generator	Industrial Display Controller Interface
Use Scenario: Generating precise, synchronized digital stimulus patterns for IC functional testing under automated test systems. IC Role / Device Role / Timing Role: Edge-triggered latch holding pattern bits from test vector memory; 3-state outputs allow multiplexed connection to DUT pins. Use Value: 0.2 ns t_su and 3.4 ns t_pd support <5 ns pattern update resolution; bus-hold prevents glitches during vector reload intervals.	Use Scenario: Interfacing microcontroller parallel RGB or LVDS timing signals to industrial LCD or OLED display modules. IC Role / Device Role / Timing Role: Level-shifting and timing alignment buffer for pixel data and control signals between MCU and display driver IC. Use Value: 1.2–3.6 V operation matches both 1.8 V MCU I/O and 3.3 V display logic; MULTIBYTE pinout preserves signal group routing integrity.

Industrial PLC I/O Expansion

High-Speed Memory Interface Buffer

Use Scenario: Latching parallel sensor data from analog-to-digital converters before CPU read cycles in programmable logic controllers.

IC Role / Device Role / Timing Role: 16-bit synchronous data register capturing 16-channel ADC output on rising clock edge; 3-state outputs isolate bus during CPU access.

Use Value: Bus-hold inputs prevent floating states during ADC conversion gaps; 3.4 ns t_pd ensures sub-5 ns sampling-to-read latency at 3.3 V.

Use Scenario: Isolating and synchronizing address/data lines between FPGA memory controller and SRAM/SDRAM modules.

IC Role / Device Role / Timing Role: Dual-section D-flip-flop providing clock-domain crossing and bus contention control between controller and memory banks.

Use Value: Independent OE per section enables staggered memory bank activation; ±24 mA drive sustains signal integrity over 50 Ω traces up to 200 MHz.

Automated Test Equipment (ATE) Pattern Generator

Industrial Display Controller Interface

Use Scenario: Generating precise, synchronized digital stimulus patterns for IC functional testing under automated test systems.

IC Role / Device Role / Timing Role: Edge-triggered latch holding pattern bits from test vector memory; 3-state outputs allow multiplexed connection to DUT pins.

Use Value: 0.2 ns t_su and 3.4 ns t_pd support <5 ns pattern update resolution; bus-hold prevents glitches during vector reload intervals.

Use Scenario: Interfacing microcontroller parallel RGB or LVDS timing signals to industrial LCD or OLED display modules.

IC Role / Device Role / Timing Role: Level-shifting and timing alignment buffer for pixel data and control signals between MCU and display driver IC.

Use Value: 1.2–3.6 V operation matches both 1.8 V MCU I/O and 3.3 V display logic; MULTIBYTE pinout preserves signal group routing integrity.

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
SN74ALVCH16374DGGR	TI version in same TSSOP48 package; identical pinout and AC/DC specs but different bus-hold current (±60 μA vs ±75 μA at 3.0 V).	Valid for drop-in replacement where TI-specified bus-hold margin suffices; not qualified for extended industrial temp range beyond +85 °C.	Select if sourcing from TI-aligned supply chain; verify bus-hold stability under worst-case V_CC tolerance.
74LVC16374ADGG	Nexperia LVC variant; lower drive (±24 mA @ 3.3 V same), but narrower V_CC range (1.65–3.6 V) and no bus-hold - requires external pull resistors.	Suitable for cost-sensitive designs where board space permits pull resistors and 1.2 V operation is unnecessary.	Choose only if 1.2 V operation is excluded and bus-hold is not required; otherwise 74ALVCH16374DGG:51 offers superior integration.

Compared with SN74ALVCH16374DGGR and 74LVC16374ADGG, the 74ALVCH16374DGG:51 uniquely combines 1.2 V compatibility, integrated bus-hold, and industrial temperature rating - enabling fewer external components and broader system voltage flexibility without sacrificing timing performance.

Availability

74ALVCH16374DGG:51 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, high-speed memory interface buffering, automated test equipment pattern generation, and industrial display controller interface requiring stable component supply and long-term production continuity.

Supply support for 74ALVCH16374DGG:51 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 an industry-leading supplier of discrete, logic, and PowerMOS semiconductors, focused on automotive, industrial, computing, consumer, and wearable markets after its 2017 spin-off from NXP.

The 74ALVCH16374DGG:51 belongs to Nexperia's advanced logic family designed for high-speed, low-voltage, bus-oriented applications requiring robust noise immunity, minimal external components, and seamless voltage domain bridging.

FAQ

What is the maximum operating frequency of the 74ALVCH16374DGG:51?

The 74ALVCH16374DGG:51 achieves a maximum frequency of 350 MHz at V_CC = 3.0–3.6 V, as specified in the dynamic characteristics table. This is enabled by a propagation delay as low as 3.4 ns and a minimum clock pulse width of 1.4 ns under those conditions. Real-world system frequency depends on layout, load capacitance, and signal integrity - the 74ALVCH16374DGG:51 datasheet provides timing margins validated down to 2.3 V operation.

Does the 74ALVCH16374DGG:51 require external pull-up or pull-down resistors on its inputs?

No, the 74ALVCH16374DGG:51 integrates bus-hold circuitry on all 16 data inputs (1D0–1D7 and 2D0–2D7), which actively maintains the last valid logic state when inputs are un-driven. This eliminates the need for external pull resistors, reducing BOM cost, PCB area, and potential noise coupling. Bus-hold current is ±75 μA at V_CC = 3.0 V, as confirmed in the static characteristics table of the 74ALVCH16374DGG:51 datasheet.

What is the function of the 1OE and 2OE pins on the 74ALVCH16374DGG:51?

The 1OE and 2OE pins (pins 1 and 24) are active-LOW output enable inputs controlling the 3-state outputs of each 8-bit section independently. When OE is LOW, the stored flip-flop data appears at Q outputs; when HIGH, outputs enter high-impedance OFF-state without affecting internal state. This allows time-multiplexed bus sharing and isolation - a key feature confirmed in the functional description and pin table of the 74ALVCH16374DGG:51 product data sheet.

Is the 74ALVCH16374DGG:51 compatible with TTL-level signals?

Yes, the 74ALVCH16374DGG:51 supports direct interface with TTL logic levels. Its input voltage thresholds (VIH = 2.0 V min, VIL = 0.8 V max at V_CC = 3.0–3.6 V) and output drive (VOH ≥ V_CC − 1.0 V, VOL ≤ 0.55 V at 24 mA) meet TTL-compatible swing and loading requirements. This interoperability is explicitly stated in the "Features and benefits" section of the 74ALVCH16374DGG:51 datasheet.

What package type is used for the 74ALVCH16374DGG:51?

The 74ALVCH16374DGG:51 uses the TSSOP48 package (SOT362-1): a plastic thin shrink small outline package with 48 leads, 6.1 mm body width, and 0.5 mm lead pitch. This package is confirmed in the ordering information table and package outline diagram (Figure 11) of the official 74ALVCH16374DGG:51 datasheet, and supports standard surface-mount assembly processes.

74ALVCH16374DGG:51 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: 74ALVCH

Package/Case:: 48-TFSOP (0.240", 6.10mm Width)

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:: 350 MHz

Max Propagation Delay @ V, Max CL:: 3.4ns @ 3.3V, 50pF

Trigger Type:: Positive Edge

Current - Output High, Low:: 24mA, 24mA

Voltage - Supply:: 1.2V ~ 3.6V

Current - Quiescent (Iq):: 40 µA

Input Capacitance:: 5 pF

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TSSOP

74ALVCH16374DGG:51 FAQ

1.How can I place an order for 74ALVCH16374DGG:51 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74ALVCH16374DGG:51 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 74ALVCH16374DGG:51 reliable?

The price and inventory of 74ALVCH16374DGG:51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16374DGG:51 is usually 5 days.

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Once your 74ALVCH16374DGG:51 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 74ALVCH16374DGG:51?

For technical support, including 74ALVCH16374DGG:51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16374DGG:51 requirements.

6.How does Aetrix verify that 74ALVCH16374DGG:51 is sourced from the original manufacturer or authorized distributors?

All 74ALVCH16374DGG:51 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 74ALVCH16374DGG:51 meets industry standards.

7.What is the process for return or replacement of 74ALVCH16374DGG:51?

All 74ALVCH16374DGG:51 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16374DGG:51, 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 74ALVCH16374DGG:51 part is unused and in its original packaging.

Return procedure for 74ALVCH16374DGG:51:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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