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Nexperia USA Inc. 74LVTH16374ADGG,18
- Part No.:
- 74LVTH16374ADGG,18
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVTH16374ADGG,18.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,901
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Product details
Overview
74LVTH16374ADGG,18 from Nexperia is a 3.3 V 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus interface and data latching in digital systems. It features dual independent 8-bit sections (1CP/1OE and 2CP/2OE), 2.7–3.6 V supply range, ±64 mA output drive, and overvoltage-tolerant inputs up to 5.5 V. Used in memory address/data buffering and synchronous logic control in industrial PLCs and telecom backplanes.
For engineers reviewing the 74LVTH16374ADGG,18 datasheet, 74LVTH16374ADGG,18 pinout, 74LVTH16374ADGG,18 application, or 74LVTH16374ADGG,18 equivalent, key selection criteria include clock-to-output propagation delay (≤5.0 ns at 3.3 V), bus-hold input capability (eliminating external pull-ups), IOFF power-down isolation, and TSSOP48 package compatibility with high-density PCB layouts.
Technical Context
This device implements two independent 8-bit D-type flip-flop banks, each with dedicated clock (1CP/2CP) and 3-state enable (1OE/2OE), enabling flexible partitioning as either one 16-bit or two 8-bit registers. The BiCMOS process delivers TTL-compatible input thresholds and rail-to-rail 3-state output switching.
Bus-hold circuitry on all data inputs (1D0–1D7, 2D0–2D7) actively maintains last-valid logic state when un-driven, eliminating need for external bias resistors. IOFF functionality ensures low leakage (<±100 μA) during partial power-down, preventing current backflow when VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Enables direct interfacing with 3.3 V logic families without level shifters. |
| Max Clock Frequency | 150 MHz - Supports high-throughput data capture in burst-mode memory interfaces. |
| Propagation Delay (tPLH/tPHL) | 1.5 ns (min) to 5.0 ns (max) at 3.3 V - Ensures tight timing margins in synchronous bus designs. |
| Output Drive Strength | +64 mA sink / –32 mA source - Drives heavy capacitive loads (e.g., >50 pF) and multiple TTL inputs. |
| Input Overvoltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V buses without external protection diodes. |
| Bus-Hold Current | ±75 μA to ±135 μA - Maintains stable logic levels on floating inputs without external components. |
| IOFF Leakage | ±100 μA max at VCC = 0 V - Prevents signal corruption during hot-swap or power sequencing. |
Pinout & Package
TSSOP48 plastic thin shrink small outline package (SOT362-1), 48 leads, body width 6.1 mm, lead pitch 0.5 mm, compliant with JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 | 1OE, 2OE | Active-LOW output enable controlling first/second 8-bit bank - enables independent tri-state control per section. |
| 48, 25 | 1CP, 2CP | LOW-to-HIGH edge-triggered clock inputs - synchronizes data capture independently for each 8-bit group. |
| 2–3, 5–6, 8–9, 11–12 | 1Q0–1Q7 | 3-state outputs for first 8-bit register - high-impedance when 1OE = HIGH, driven otherwise. |
| 13–14, 16–17, 19–20, 22–23 | 2Q0–2Q7 | 3-state outputs for second 8-bit register - isolated from 1Q bank for dual-bus operation. |
| 47–37, 36–26 | 1D0–1D7, 2D0–2D7 | Data inputs with integrated bus-hold - retain last valid state when unconnected or unterminated. |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Eight ground connections - reduces ground bounce and improves noise immunity in high-speed switching. |
| 7, 18, 31, 42 | VCC | Four supply pins - lowers IR drop and enhances power integrity across wide die area. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 8-bit independent banks | Enables split-bus operation: one bank latches address while other handles data, reducing control logic complexity. |
| Bus-hold on all data inputs | Eliminates need for 16 external pull-up/pull-down resistors - saves board space and BOM cost in unused-input scenarios. |
| IOFF partial power-down | Prevents current flow between powered and unpowered system domains during hot-plug or sleep mode. |
| Overvoltage-tolerant inputs (5.5 V) | Permits direct connection to legacy 5 V subsystems without level translators or clamping networks. |
| Live insertion/extraction support | IOFF + bus-hold + power-up 3-state ensure no bus contention or latch-up during hot-swap of daughter cards. |
Applications
| Memory Interface Buffering | Industrial I/O Expansion |
|---|---|
Use Scenario: Latching parallel address/data lines between microcontroller and SRAM or Flash memory. IC Role / Device Role / Timing Role: Edge-triggered register capturing address bits on rising clock edge; 3-state outputs isolate bus during read cycles. Use Value: Meets tight tsu/th requirements (0.8 ns set-up, 0.1 ns hold at 3.3 V) for 100+ MHz memory access. |
Use Scenario: Expanding GPIO count in programmable logic controllers (PLCs) with isolated field I/O modules. IC Role / Device Role / Timing Role: Synchronizing and buffering digital sensor/actuator signals across opto-isolated barriers. Use Value: Bus-hold inputs maintain stable states during communication gaps; IOFF prevents backfeed into powered-down I/O banks. |
| Telecom Backplane Data Latching | Test Equipment Pattern Generation |
Use Scenario: Capturing and holding configuration words sent over high-speed parallel control bus in line cards. IC Role / Device Role / Timing Role: Dual-bank operation allows simultaneous latching of command and parameter fields using separate clocks. Use Value: 150 MHz max clock frequency supports multi-gigabit control plane throughput; 64 mA drive sustains signal integrity over 10 cm traces. |
Use Scenario: Generating deterministic stimulus patterns for IC functional testing with precise timing alignment. IC Role / Device Role / Timing Role: Register stage in pattern sequencer pipeline, synchronized to system test clock with sub-nanosecond jitter tolerance. Use Value: Propagation delay variation ≤0.5 ns (typ) ensures <100 ps skew across all 16 outputs - critical for vector accuracy. |
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 | Lower drive (24 mA sink), no bus-hold, 1.65–3.6 V supply - lacks overvoltage tolerance and IOFF. | Suitable only for clean 3.3 V-only systems with fully terminated buses and active control of all inputs. | Select when cost sensitivity outweighs robustness needs and external pull-ups are acceptable. |
| 74ALVCH16374PAG | Higher speed (200 MHz), same 3.3 V range, but no bus-hold and only 32 mA sink - requires external termination. | Better for ultra-high-frequency clock domains where propagation delay <3.5 ns is mandatory. | Choose when timing margin is critical and board layout allows discrete biasing of all inputs. |
Compared with SN74LVC16374ADGGR and 74ALVCH16374PAG, the 74LVTH16374ADGG,18 uniquely combines 5.5 V input tolerance, integrated bus-hold, and IOFF - making it the only option for mixed-voltage, hot-swap, or unterminated industrial backplane designs without added passive components.
Availability
74LVTH16374ADGG,18 is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, memory interface buffering, and test equipment requiring stable component supply across extended temperature ranges (–40 °C to +85 °C).
Supply support for 74LVTH16374ADGG,18 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 optimized for efficiency, reliability, and miniaturization in industrial and consumer applications.
The 74LVTH series targets high-speed 3.3 V digital systems requiring robust bus interfacing, featuring BiCMOS architecture for TTL compatibility, overvoltage resilience, and low-power operation.
FAQ
What is the function of the bus-hold feature on 74LVTH16374ADGG,18?
The bus-hold circuit actively maintains the last valid logic state on each data input (1D0–1D7, 2D0–2D7) when left floating, drawing ±75–135 μA to hold voltage near VIH or VIL. This eliminates external pull-up/pull-down resistors, reducing BOM count and PCB area in systems with unused or intermittently driven inputs.
Can 74LVTH16374ADGG,18 safely interface with 5 V logic without level shifters?
Yes - all inputs tolerate up to 5.5 V regardless of VCC (2.7–3.6 V), and outputs drive TTL-compatible levels. When VCC = 3.3 V, VOH ≥ 2.0 V at 32 mA load and VOL ≤ 0.55 V at 64 mA sink, meeting TTL VIH/VIL thresholds. No external translation is needed for 5 V bus connection.
How does IOFF functionality protect the device during partial power-down?
When VCC = 0 V, IOFF circuitry limits input/output leakage to ±100 μA even if pins are biased to 4.5 V. This prevents current backflow from powered subsystems into unpowered ones, avoiding latch-up, false triggering, or damage during hot-swap, sleep mode, or staged power sequencing in modular systems.
What is the significance of dual clock and output enable pins (1CP/2CP, 1OE/2OE)?
Dual independent control sets allow the 16-bit register to operate as two synchronized 8-bit units: e.g., 1CP/1OE manage address latching while 2CP/2OE handle data capture. This enables time-multiplexed bus usage, reduces external gating logic, and supports asymmetric timing requirements across data paths in complex digital systems.
74LVTH16374ADGG,18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVTH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 48-TSSOP
74LVTH16374ADGG,18 FAQ
1.How can I place an order for 74LVTH16374ADGG,18 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH16374ADGG,18 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 74LVTH16374ADGG,18 reliable?
The price and inventory of 74LVTH16374ADGG,18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH16374ADGG,18 is usually 5 days.
3.What payment methods are accepted for 74LVTH16374ADGG,18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH16374ADGG,18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVTH16374ADGG,18?
74LVTH16374ADGG,18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH16374ADGG,18 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 74LVTH16374ADGG,18?
For technical support, including 74LVTH16374ADGG,18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH16374ADGG,18 requirements.
6.How does Aetrix verify that 74LVTH16374ADGG,18 is sourced from the original manufacturer or authorized distributors?
All 74LVTH16374ADGG,18 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 74LVTH16374ADGG,18 meets industry standards.
7.What is the process for return or replacement of 74LVTH16374ADGG,18?
All 74LVTH16374ADGG,18 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH16374ADGG,18, 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 74LVTH16374ADGG,18 part is unused and in its original packaging.
Return procedure for 74LVTH16374ADGG,18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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