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Texas Instruments SN74LVC16374ADGGR
- Part No.:
- SN74LVC16374ADGGR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVC16374ADGGR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,507
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Product details
Overview
SN74LVC16374ADGGR from Texas Instruments is a 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for 1.65-V to 3.6-V VCC operation. It functions as two independent 8-bit registers or one unified 16-bit latch, supports 150-MHz clock frequency, delivers ±24-mA output drive at 3.0 V, and features 5.5-V-tolerant inputs-enabling use in mixed-voltage bus interface applications such as server I/O buffering.
For engineers reviewing the SN74LVC16374ADGGR datasheet, SN74LVC16374ADGGR pinout, SN74LVC16374ADGGR application, or SN74LVC16374ADGGR equivalent, key selection criteria include its dual 8-bit output-enable control, Ioff-enabled live insertion support, 3.6-V absolute maximum input voltage tolerance, and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
This device implements two synchronous 8-bit D-type flip-flop banks, each with independent clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Data is latched on the positive edge of the respective clock, and outputs enter high-impedance state when OE is high-without affecting internal register state or data retention.
It incorporates Ioff circuitry to block current backflow during partial power-down, supports mixed-mode signal translation (5-V inputs to 3.3-V outputs), and meets JESD 17 latch-up immunity (>250 mA) and JESD 22 ESD ratings (2000-V HBM, 1000-V CDM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables single-supply operation across low-voltage logic families including 1.8-V, 2.5-V, and 3.3-V systems. |
| Max Clock Frequency | 150 MHz - Supports high-speed data latching in memory interfaces and real-time bus arbitration. |
| Output Drive | ±24 mA at VCC = 3.0 V - Sufficient to drive eight LVC loads or terminate unterminated transmission lines without external buffers. |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct connection to 5-V legacy logic or microcontrollers without level-shifting circuitry. |
| Propagation Delay (tpd) | 1.5 ns to 4.5 ns (VCC = 3.3 V) - Ensures tight timing margins in synchronous register-to-register paths. |
| Ioff Current | ±10 μA at VI/VO = 5.5 V, VCC = 0 V - Prevents damaging back-current during hot-plug or power sequencing events. |
| Power Dissipation Capacitance | 58 pF per flip-flop at VCC = 3.3 V, f = 10 MHz - Quantifies dynamic power consumption for thermal estimation in dense logic arrays. |
Pinout & Package
TSSOP-48 package (DGG), body size 12.50 mm × 6.10 mm, 0.5-mm pitch, lead finish NiPdAu, MSL Level-1 (260°C peak reflow), RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output Enable Inputs | Active-low enables for Bank 1 and Bank 2 outputs; high forces all eight associated Q outputs into high-impedance state. |
| 1CLK, 2CLK | Clock Inputs | Positive-edge-triggered clocks controlling latching of Bank 1 and Bank 2 data inputs independently. |
| 1D1–1D8, 2D1–2D8 | Data Inputs | 16 total D inputs-eight per bank-sampled synchronously on respective CLK rising edges. |
| 1Q1–1Q8, 2Q1–2Q8 | Registered Outputs | 16 buffered, 3-state outputs-eight per bank-with output drive strength scalable by VCC. |
| VCC (Pins 7, 18, 31, 42) | Power Supply | Four dedicated VCC pins distributed across package to minimize IR drop and improve noise immunity in high-speed switching. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground Reference | Eight GND pins provide low-inductance return paths for switching currents, critical for maintaining signal integrity at 150 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.65–3.6 V) | Supports interoperability across 1.8-V, 2.5-V, and 3.3-V logic domains without voltage translators. |
| 5.5-V-tolerant inputs | Eliminates need for external level shifters when interfacing with 5-V microcontrollers or legacy peripherals. |
| Ioff partial-power-down protection | Enables safe live insertion and hot-swap capability in modular backplane and server I/O applications. |
| High-output drive (±24 mA) | Drives multiple LVC/LVT loads directly, reducing component count in bus-hold and fanout-critical designs. |
| Low ground bounce (VOLP < 0.8 V) | Maintains signal integrity under heavy simultaneous switching conditions at 3.3-V operation. |
Applications
| Server Memory Buffering | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Latching address/data signals between CPU and DDR memory modules in rack-mounted servers. IC Role / Device Role / Timing Role: Acts as a 16-bit registered buffer synchronized to system clock, isolating memory controller from bus loading variations. Use Value: Enables stable 150-MHz data capture with ±24-mA drive, eliminating timing skew caused by trace-length mismatches in multi-drop memory buses. |
Use Scenario: Expanding digital I/O capacity on programmable logic controller backplanes with mixed 3.3-V and 5-V sensor/actuator interfaces. IC Role / Device Role / Timing Role: Functions as dual 8-bit parallel I/O port with independent enable control for isolated input sampling and output driving. Use Value: 5.5-V input tolerance allows direct connection to industrial 5-V sensors; Ioff prevents backfeed during module hot-swap maintenance cycles. |
| Network Switch ASIC Interface | Embedded Display Controller Interface |
|
Use Scenario: Interfacing packet processor ASICs with external SRAM or FIFO buffers in 10-Gbps Ethernet switches. IC Role / Device Role / Timing Role: Provides edge-aligned data staging between asynchronous clock domains using separate 1CLK/2CLK and 1OE/2OE controls. Use Value: 1.5-ns minimum tpd at 3.3 V ensures sub-cycle latency in time-critical packet header parsing pipelines. |
Use Scenario: Driving parallel RGB interface lines (e.g., 16-bit data + control) from an embedded ARM SoC to TFT-LCD panels in medical displays. IC Role / Device Role / Timing Role: Serves as a 16-bit output latch with 3-state capability, enabling shared bus access between display controller and touch controller. Use Value: Dual OE control permits dynamic bus arbitration; ±24-mA drive sustains signal integrity over 10-cm flex cable runs to panel connectors. |
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 |
|---|---|---|---|
| SN74LVC16373ADGGR | Octal transparent latch (no clock edge trigger); outputs follow inputs while LE is low. | Suitable for level-sensitive data capture (e.g., address latching), not edge-triggered register storage. | Select when synchronous clock-edge registration is unnecessary and simpler LE-controlled gating suffices. |
| SN74ALVC16374DGGR | Wider VCC range (1.65–3.6 V same), but higher drive (±24 mA @ 2.5 V), lower tpd (1.2 ns min), and tighter VOH/VOL specs. | Better suited for ultra-high-speed interconnects requiring <1.5-ns propagation delay and improved noise margin. | Choose for next-generation designs targeting >165-MHz operation or stricter timing closure requirements. |
Compared with SN74LVC16374ADGGR, SN74LVC16373ADGGR trades edge-triggered register behavior for transparent latch functionality-reducing setup/hold complexity but eliminating clock-domain isolation. SN74ALVC16374DGGR improves speed and drive at identical voltage range, making it a performance-upgrade path without layout change.
Availability
SN74LVC16374ADGGR is available at Aetrix Electronics and suitable for server memory buffering, industrial PLC I/O expansion, network switch ASIC interfacing, and embedded display controller interface applications requiring stable component supply across extended product lifecycles.
Supply support for SN74LVC16374ADGGR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of expertise in high-reliability interface and timing devices.
The SN74LVC16374ADGGR belongs to TI's Widebus™ family of advanced CMOS logic, engineered specifically for high-speed, low-voltage bus interface and data latching in computing, communications, and industrial control systems.
FAQ
What is the maximum clock frequency supported by the SN74LVC16374ADGGR?
The SN74LVC16374ADGGR supports a maximum clock frequency of 150 MHz across its full operating voltage range (1.65 V to 3.6 V), as verified in the Switching Characteristics table under recommended conditions. This rating applies to both banks independently and is guaranteed with proper load capacitance (≤50 pF) and signal edge rates meeting Δt/Δv ≤ 10 ns/V.
Does the SN74LVC16374ADGGR support 5-V input signals?
Yes, the SN74LVC16374ADGGR accepts input voltages up to 5.5 V regardless of VCC level-a feature explicitly documented in the Absolute Maximum Ratings and Functional Description sections. This allows direct interfacing with 5-V microcontrollers or legacy peripherals without external level-shifting components.
How does the Ioff feature function in the SN74LVC16374ADGGR?
The Ioff feature in the SN74LVC16374ADGGR disables all outputs and blocks current flow when VCC = 0 V, limiting Ioff to ±10 μA even with 5.5-V signals applied to inputs or outputs. This protects downstream circuitry during hot-swap, partial power-down, or system initialization sequences.
What is the purpose of the dual output-enable (1OE and 2OE) pins on the SN74LVC16374ADGGR?
The dual OE pins (1OE and 2OE) provide independent 3-state control for the two 8-bit output banks. This enables selective isolation of either bank-e.g., holding Bank 1 outputs active while tri-stating Bank 2 for bus sharing-without affecting internal register states or requiring additional logic gates.
Can the SN74LVC16374ADGGR be used as a single 16-bit register or only as two 8-bit registers?
The SN74LVC16374ADGGR can operate flexibly as either two independent 8-bit registers (using 1CLK/1OE and 2CLK/2OE separately) or as a unified 16-bit register (by tying 1CLK = 2CLK and 1OE = 2OE). Its functional block diagram and truth table confirm identical edge-triggered behavior across all 16 bits, with no architectural restriction preventing combined usage.
SN74LVC16374ADGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- 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:
- 4.5ns @ 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74LVC16374ADGGR FAQ
1.How can I place an order for SN74LVC16374ADGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16374ADGGR 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 SN74LVC16374ADGGR reliable?
The price and inventory of SN74LVC16374ADGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16374ADGGR is usually 5 days.
3.What payment methods are accepted for SN74LVC16374ADGGR?
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4.How is shipping managed for SN74LVC16374ADGGR?
SN74LVC16374ADGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16374ADGGR 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 SN74LVC16374ADGGR?
For technical support, including SN74LVC16374ADGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16374ADGGR requirements.
6.How does Aetrix verify that SN74LVC16374ADGGR is sourced from the original manufacturer or authorized distributors?
All SN74LVC16374ADGGR 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 SN74LVC16374ADGGR meets industry standards.
7.What is the process for return or replacement of SN74LVC16374ADGGR?
All SN74LVC16374ADGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16374ADGGR, 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 SN74LVC16374ADGGR part is unused and in its original packaging.
Return procedure for SN74LVC16374ADGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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