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Texas Instruments 74AUC16374DGGRG4
- Part No.:
- 74AUC16374DGGRG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74AUC16374DGGRG4.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,350
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Product details
Overview
74AUC16374DGGRG4 from Texas Instruments is a 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for 1.65–1.95 V operation and 3.6-V I/O tolerant signaling. It features dual 8-bit sections (1CLK/1OE and 2CLK/2OE), ±8-mA output drive at 1.8 V, 2.8 ns max propagation delay, and Ioff support for partial-power-down mode. It serves as a high-speed register or bidirectional bus driver in low-voltage memory interfaces and FPGA I/O expansion.
For engineers reviewing the 74AUC16374DGGRG4 datasheet, 74AUC16374DGGRG4 pinout, 74AUC16374DGGRG4 application, or 74AUC16374DGGRG4 equivalent, key selection criteria include its sub-1-V operability, 250-MHz clock frequency capability at 1.8 V, 3-state enable timing (ten/tdis ≤ 2.9 ns), and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
This device implements two independent 8-bit positive-edge-triggered D flip-flops, each with dedicated clock (CLK) and output-enable (OE) inputs. All 16 Q outputs are individually controllable via OE to enter high-impedance state without affecting internal latch operation - enabling bus sharing and hot-swap-safe data retention.
It operates across 0.8–2.7 V supply range but is optimized for 1.65–1.95 V, supporting mixed-mode logic interfacing. Its Ioff circuitry blocks current backflow during power-down, and ESD protection meets JESD22-A114 (2000-V HBM), A115 (200-V MM), and C101 (1000-V CDM) standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 0.8 V to 2.7 V; supports sub-1-V operation and 1.8-V system core voltage with 3.6-V I/O tolerance |
| Max Clock Frequency | 250 MHz at VCC = 1.8 V; enables high-throughput data latching in DDR interface buffers |
| Propagation Delay (tpd) | 2.8 ns max at VCC = 1.8 V; ensures tight timing margins in 500-Mbps source-synchronous links |
| Output Drive Strength | ±8 mA at VCC = 1.8 V; drives 50-Ω transmission lines directly without external termination |
| Ioff Current | ±10 µA max at VI/VO = 2.7 V; prevents backfeed damage during partial power-down in multi-rail systems |
| Input Transition Rate | 20 ns/V min; accommodates fast CMOS edges without false triggering |
| Operating Temperature | –40°C to +85°C; qualified for industrial-grade embedded control and communications equipment |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm body, 0.5-mm lead pitch, gull-wing leads, JEDEC MO-153 compliant, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output Enable (active-low) | Independent 3-state control per 8-bit section; does not affect internal latch state |
| 1CLK, 2CLK | Clock Input (positive edge) | Edge-triggered sampling of D inputs; synchronous to rising edge only |
| 1D1–1D8, 2D1–2D8 | Data Inputs | Asynchronous setup/hold relative to CLK; accepts 0.8–2.7 V logic levels |
| 1Q1–1Q8, 2Q1–2Q8 | Tri-State Outputs | High-drive (±8 mA), low-capacitance (5 pF) outputs; enter Hi-Z when OE = high |
| VCC (Pins 7, 20, 33, 46) | Power Supply | Four distributed VCC pins reduce switching noise and improve PSRR |
| GND (Pins 4, 11, 24, 37, 43) | Ground | Five GND pins provide low-inductance return paths for high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range Operation | Functional from 0.8 V to 2.7 V - supports ultra-low-voltage SoC I/O domains and battery-backed subsystems |
| 3.6-V I/O Tolerance | Accepts and drives up to 3.6 V on all I/O pins while powered at 1.8 V - enables seamless level translation with legacy 3.3-V peripherals |
| Sub-1-V Operability | Guaranteed functionality down to 0.8 V - suitable for energy-harvesting and ultra-low-power sensor hub applications |
| Low Dynamic Power | 20 µA max ICC at 2.7 V - minimizes quiescent current in always-on register stages |
| Bus-Hold Circuitry Absent | No internal bus-hold; all unused inputs must be externally tied to VCC or GND per SCBA004 - avoids unintended state retention |
Applications
| Memory Interface Buffer | FPGA I/O Expansion |
|---|---|
Use Scenario: Latching address/data between low-voltage microcontroller and parallel NOR flash or SRAM. IC Role / Device Role / Timing Role: 16-bit registered buffer with independent OE control per byte lane; synchronizes asynchronous memory access. Use Value: Eliminates need for discrete level shifters due to 3.6-V I/O tolerance and 1.8-V core compatibility. |
Use Scenario: Extending I/O count of Artix-7 or Cyclone V FPGA by adding 16-bit synchronized peripheral bus. IC Role / Device Role / Timing Role: Edge-triggered register stage isolating FPGA fabric from external bus loading and timing skew. Use Value: 2.8 ns tpd and 250-MHz fmax allow direct connection to 200+ MHz peripheral clocks without timing closure penalties. |
| Industrial PLC Backplane | Test Equipment Signal Conditioning |
Use Scenario: Isolating and buffering 16-bit status/control signals across isolated power domains in modular I/O racks. IC Role / Device Role / Timing Role: Dual-section 3-state register enabling hot-swap-safe read/write arbitration on shared backplane bus. Use Value: Ioff protection prevents backfeed during module insertion/removal; ±8-mA drive sustains signal integrity over 15-cm traces. |
Use Scenario: Capturing and holding analog-to-digital converter outputs before serial transfer in automated test systems. IC Role / Device Role / Timing Role: Synchronized capture latch aligning parallel ADC data to system clock domain with deterministic latency. Use Value: 0.4 ns hold time and 0.6 ns setup time at 1.8 V ensure reliable sampling of 200-MSPS ADC outputs with minimal jitter. |
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 | Higher VCC min (1.65 V), lower drive (±24 mA at 3.3 V), no sub-1-V operation | Requires ≥3.3-V I/O rails; unsuitable for 1.8-V-only systems | Select when interfacing with 3.3-V peripherals and higher drive is needed |
| 74AVC16374TTR | Same 1.2–3.6 V range, 3.5 ns tpd at 1.8 V, 1.2-V min operation, different pinout (TSSOP-48 variant) | Not pin-compatible; requires PCB redesign despite identical package outline | Choose only if migrating from STMicroelectronics design ecosystem |
Compared with SN74LVC16374ADGGR and 74AVC16374TTR, the 74AUC16374DGGRG4 uniquely delivers sub-1-V operation, lowest propagation delay (2.8 ns), and guaranteed 3.6-V I/O tolerance at 1.8-V supply - making it optimal for next-generation low-power, high-speed interface bridging where voltage scaling and timing margin are critical.
Availability
74AUC16374DGGRG4 is available at Aetrix Electronics and suitable for memory interface buffers, FPGA I/O expansion, industrial PLC backplanes, and test equipment signal conditioning requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for 74AUC16374DGGRG4 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-speed interface ICs and industrial-grade reliability.
The 74AUC16374DGGRG4 belongs to TI's Widebus™ family - engineered specifically for low-voltage, high-speed bus interface applications demanding minimal propagation delay, robust I/O tolerance, and partial-power-down safety.
FAQ
What is the minimum operating voltage for the 74AUC16374DGGRG4?
The 74AUC16374DGGRG4 is fully specified down to 0.8 V supply voltage and functions reliably in sub-1-V domains. Its recommended operating range is 1.65–1.95 V for optimal timing and drive performance, but it maintains logic functionality and 3-state control even at 0.8 V - a key enabler for ultra-low-power sensor node designs.
Does the 74AUC16374DGGRG4 support mixed-voltage I/O interfacing?
Yes, the 74AUC16374DGGRG4 supports true mixed-voltage operation: it operates from 0.8–2.7 V VCC while tolerating input and output voltages up to 3.6 V. This allows direct connection to 3.3-V or 2.5-V peripherals without external level shifters when powered at 1.8 V - confirmed by absolute maximum ratings and I/O voltage specifications in the datasheet.
How does the Ioff feature work on the 74AUC16374DGGRG4?
The Ioff circuitry in the 74AUC16374DGGRG4 disables all outputs when VCC = 0 V, limiting current backflow to ±10 µA maximum even if I/O pins are driven to 2.7 V. This protects powered-down sections in multi-rail systems and enables safe hot-plug operation - verified per JESD78 Class II latch-up testing and explicitly enabled by the Ioff specification in Electrical Characteristics.
Is the 74AUC16374DGGRG4 pin-compatible with other 16-bit flip-flops like the SN74LVC16374A?
No, the 74AUC16374DGGRG4 is not pin-compatible with SN74LVC16374A or 74AVC16374TTR. While all use TSSOP-48 packages, the pin assignments differ significantly - especially for VCC/GND distribution and OE/CLK placement. The 74AUC16374DGGRG4 uses four VCC and five GND pins in a specific pattern optimized for low-noise 1.8-V operation, unlike the LVC variant's layout.
What is the maximum clock frequency supported by the 74AUC16374DGGRG4 at 1.8 V?
At VCC = 1.8 V, the 74AUC16374DGGRG4 supports a maximum clock frequency of 250 MHz, as specified in the Timing Requirements table under fclock. This is validated across –40°C to +85°C and reflects guaranteed performance with 0.15-V tolerance margin - enabling use in high-speed memory controllers and real-time data acquisition systems.
74AUC16374DGGRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Clock Frequency:
- 250 MHz
- Max Propagation Delay @ V, Max CL:
- 2.2ns @ 2.5V, 30pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 9mA, 9mA
- Voltage - Supply:
- 0.8V ~ 2.7V
- Current - Quiescent (Iq):
- 20 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74AUC16374DGGRG4 FAQ
1.How can I place an order for 74AUC16374DGGRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AUC16374DGGRG4 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 74AUC16374DGGRG4 reliable?
The price and inventory of 74AUC16374DGGRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AUC16374DGGRG4 is usually 5 days.
3.What payment methods are accepted for 74AUC16374DGGRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AUC16374DGGRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AUC16374DGGRG4?
74AUC16374DGGRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AUC16374DGGRG4 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 74AUC16374DGGRG4?
For technical support, including 74AUC16374DGGRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AUC16374DGGRG4 requirements.
6.How does Aetrix verify that 74AUC16374DGGRG4 is sourced from the original manufacturer or authorized distributors?
All 74AUC16374DGGRG4 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 74AUC16374DGGRG4 meets industry standards.
7.What is the process for return or replacement of 74AUC16374DGGRG4?
All 74AUC16374DGGRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74AUC16374DGGRG4, 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 74AUC16374DGGRG4 part is unused and in its original packaging.
Return procedure for 74AUC16374DGGRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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