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Texas Instruments SN74LVC16374AGRDR
- Part No.:
- SN74LVC16374AGRDR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 54-TFBGA
- Datasheet:
-
SN74LVC16374AGRDR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
SN74LVC16374AGRDR 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 3.3 V, and features 5.5-V-tolerant inputs-enabling use in mixed-voltage bus interface applications such as server I/O buffering and notebook memory expansion.
For engineers reviewing the SN74LVC16374AGRDR datasheet, SN74LVC16374AGRDR pinout, SN74LVC16374AGRDR application, or SN74LVC16374AGRDR equivalent, key selection criteria include its dual 8-bit output-enable control, Ioff-enabled live insertion capability, 3.6-V absolute maximum supply rating, and TSSOP-48 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 (1CLK/2CLK) and output-enable (1OE/2OE) inputs. Data propagation occurs on the positive edge of the respective clock, and outputs enter high-impedance state when OE is high-without affecting internal register state retention.
It supports mixed-mode signal operation: inputs tolerate up to 5.5 V regardless of VCC (1.65–3.6 V), enabling level translation from 5-V logic to 3.3-V systems. The Ioff feature disables outputs and blocks current backflow when VCC = 0 V, satisfying partial-power-down requirements in hot-swap and modular backplane designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables interoperability across low-voltage logic families and battery-powered systems. |
| Max Clock Frequency | 150 MHz - Supports high-speed data latching in DDR memory interfaces and PCIe sideband control paths. |
| Output Drive | ±24 mA at 3.3 V - Sufficient to drive eight 50-Ω transmission lines or multiple CMOS loads without external buffers. |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct connection to legacy 5-V microcontrollers or FPGAs without level-shifting circuitry. |
| Ioff Support | Active at VCC = 0 V - Permits safe live insertion into powered-backplane systems without risk of back-drive damage. |
| Propagation Delay | 1.5 ns to 4.5 ns (VCC = 3.3 V) - Ensures timing margin compliance in sub-5-ns setup/hold windows for synchronous buses. |
| ESD Rating | 2000-V HBM, 1000-V CDM - Meets industrial-grade robustness requirements for automated assembly and field deployment. |
Pinout & Package
TSSOP-48 package (body size 12.50 mm × 6.10 mm), lead finish NiPdAu, moisture sensitivity level 1 (260°C peak reflow), RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output Enable (active-low) | Independent control of 8-bit output banks; high = 3-state, low = functional output - enables time-multiplexed bus sharing. |
| 1CLK, 2CLK | Clock input (positive-edge triggered) | Edge-sensitive latch control per bank; asynchronous to other bank - supports staggered sampling or dual-clock domain isolation. |
| 1D1–1D8, 2D1–2D8 | Data inputs | 16 total inputs accepting 5.5-V-tolerant signals; mapped directly to corresponding Q outputs on clock edge. |
| 1Q1–1Q8, 2Q1–2Q8 | Tri-state outputs | 16 buffered outputs with ±24-mA drive; enter high-Z when OE high - eliminates bus contention during arbitration. |
| VCC (pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins reduce IR drop and improve noise immunity; requires local 0.1-μF bypass per pin. |
| GND (pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return path for high-speed switching currents - critical for EMI control. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.65–3.6 V) | Supports single-supply operation 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 | Prevents damaging current flow during hot-plug events or system sleep states - certified per JESD78. |
| High-output drive (±24 mA) | Drives heavy capacitive loads (e.g., 50-pF trace + 32-bit bus) while maintaining <1-ns skew across all 16 outputs. |
| Low ground bounce (VOLP < 0.8 V) | Reduces digital noise coupling into analog sections - verified at 3.3 V, 25°C, critical for mixed-signal PCBs. |
Applications
| Server Memory Buffering | Notebook I/O Expansion |
|---|---|
|
Use Scenario: Latching address/data signals between CPU and DDR4 memory modules in enterprise servers. IC Role / Device Role / Timing Role: 16-bit registered buffer providing setup/hold margin extension and bus isolation during memory refresh cycles. Use Value: 150-MHz clock support and ±24-mA drive ensure reliable signal integrity across 12-inch backplane traces with >30-pF loading. |
Use Scenario: Expanding GPIO count for touchpad, keyboard, and USB hub control in ultra-thin notebooks. IC Role / Device Role / Timing Role: Dual 8-bit latch synchronizing parallel control signals from EC (Embedded Controller) to peripheral ICs. Use Value: 5.5-V-tolerant inputs allow direct connection to 5-V EC outputs; Ioff enables safe firmware updates without full power cycle. |
| Industrial Network Switch Interface | Retail Point-of-Sale Terminal |
|
Use Scenario: Isolating management bus (I²C/SPI) between switch ASIC and PHY controllers in Layer-2 switches. IC Role / Device Role / Timing Role: Bidirectional bus driver with independent OE control per 8-bit lane - prevents contention during firmware upgrades. Use Value: 3.6-V absolute max rating and –40°C to 125°C operating range meet extended temperature requirements for fanless chassis. |
Use Scenario: Controlling LED indicators, thermal sensors, and cash drawer solenoids in compact POS terminals. IC Role / Device Role / Timing Role: Output register latching status bits from ARM Cortex-M4 MCU to discrete drivers and optocouplers. Use Value: Low ICC (20 μA typical) extends battery life in portable POS units; 8-GND-pin layout minimizes ground bounce in noisy retail environments. |
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 | Non-latching transparent latch (no clock edge trigger); identical VCC range, drive strength, and package. | Suitable only where data must pass through unaltered until enable deassertion - not for synchronous sampling. | Select SN74LVC16373ADGGR only when edge-triggered storage is unnecessary and transparent gating suffices. |
| 74ALVC16374PW | Higher speed (200-MHz fmax), lower ICC (10 μA), but narrower VCC range (2.3–3.6 V) and no Ioff support. | Preferred in high-frequency test equipment where power-down safety is secondary to timing margin. | Choose 74ALVC16374PW only if system operates strictly within 2.3–3.6 V and does not require hot-swap capability. |
Compared with SN74LVC16374AGRDR, SN74LVC16373ADGGR lacks clock synchronization (transparent vs. edge-triggered), while 74ALVC16374PW trades Ioff and wide-VCC flexibility for marginal speed gain - making SN74LVC16374AGRDR optimal for robust, mixed-voltage, hot-pluggable designs.
Availability
SN74LVC16374AGRDR is available at Aetrix Electronics and suitable for server memory buffering, notebook I/O expansion, industrial network switch interface, and retail point-of-sale terminal applications requiring stable component supply across long production lifecycles.
Supply support for SN74LVC16374AGRDR 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 company specializing in analog, embedded processing, and logic solutions, with over 90 years of innovation in industrial, automotive, and communications markets.
The SN74LVC16374AGRDR belongs to TI's Widebus™ family of advanced logic devices, engineered specifically for high-speed, low-voltage bus interface and data latching in space-constrained, mixed-voltage systems.
FAQ
What is the maximum clock frequency supported by the SN74LVC16374AGRDR?
The SN74LVC16374AGRDR supports a maximum clock frequency of 150 MHz across its full operating voltage range (1.65 V to 3.6 V). This specification is validated per TI's switching characteristics table under recommended conditions and applies to both 8-bit banks independently. Timing margins remain consistent up to 125°C ambient, making SN74LVC16374AGRDR suitable for high-throughput data capture in networking and computing applications.
Does the SN74LVC16374AGRDR support 5-V input signals?
Yes, the SN74LVC16374AGRDR accepts input voltages up to 5.5 V regardless of VCC level (1.65–3.6 V), enabling direct interfacing with 5-V logic without external level shifters. This 5.5-V tolerance is explicitly specified in the Absolute Maximum Ratings and Electrical Characteristics tables of the official datasheet, and applies to all 16 data inputs and both clock and output-enable pins.
How does the Ioff feature function in the SN74LVC16374AGRDR?
The Ioff feature in SN74LVC16374AGRDR disables all outputs and blocks current flow when VCC = 0 V, preventing back-drive damage during live insertion or partial power-down. This behavior is guaranteed per JESD78 latch-up testing and is active across the full –40°C to 125°C temperature range. Ioff operates independently of OE state, ensuring safe operation even if OE is asserted while VCC ramps.
What package type is used for the SN74LVC16374AGRDR?
The SN74LVC16374AGRDR uses a TSSOP-48 package (TI package code DGG), with nominal body dimensions of 12.50 mm × 6.10 mm. It features 48 leads, NiPdAu lead finish, moisture sensitivity level 1 (MSL-1), and RoHS compliance. This package is optimized for automated surface-mount assembly and provides superior thermal performance compared to SSOP variants, as confirmed by TI's thermal metrics (RθJA = 78.4°C/W).
Can the SN74LVC16374AGRDR be used as two independent 8-bit registers?
Yes, the SN74LVC16374AGRDR is architecturally configured as two independent 8-bit D-type flip-flop banks: Bank 1 (1D1–1D8 / 1Q1–1Q8 / 1CLK / 1OE) and Bank 2 (2D1–2D8 / 2Q1–2Q8 / 2CLK / 2OE). Each bank operates autonomously - clocks and output enables are separate, allowing asynchronous latching, staggered sampling, or dual-domain synchronization without inter-bank timing constraints.
SN74LVC16374AGRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 54-TFBGA
- Packaging:
- Bulk
- 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:
- 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:
- 54-BGA Microstar Junior (8x5.5)
SN74LVC16374AGRDR FAQ
1.How can I place an order for SN74LVC16374AGRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16374AGRDR 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 SN74LVC16374AGRDR reliable?
The price and inventory of SN74LVC16374AGRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16374AGRDR is usually 5 days.
3.What payment methods are accepted for SN74LVC16374AGRDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC16374AGRDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC16374AGRDR?
SN74LVC16374AGRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16374AGRDR 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 SN74LVC16374AGRDR?
For technical support, including SN74LVC16374AGRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16374AGRDR requirements.
6.How does Aetrix verify that SN74LVC16374AGRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVC16374AGRDR 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 SN74LVC16374AGRDR meets industry standards.
7.What is the process for return or replacement of SN74LVC16374AGRDR?
All SN74LVC16374AGRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16374AGRDR, 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 SN74LVC16374AGRDR part is unused and in its original packaging.
Return procedure for SN74LVC16374AGRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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