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Texas Instruments SN74LVTH162374DGGR
- Part No.:
- SN74LVTH162374DGGR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVTH162374DGGR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,820
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Product details
Overview
SN74LVTH162374DGGR from Texas Instruments is a 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs in a 48-pin TSSOP (DGG) package. It features dual 8-bit banks, 12 mA output drive, bus-hold on all data inputs, and supports mixed-mode 5-V/3.3-V interfacing - used in high-speed bidirectional bus buffering and I/O port expansion for industrial control backplanes.
For engineers reviewing the SN74LVTH162374DGGR datasheet, SN74LVTH162374DGGR pinout, SN74LVTH162374DGGR application, or SN74LVTH162374DGGR equivalent, key selection criteria include clock frequency (160 MHz), 3-state enable timing (tPZH/tPLZ ≤ 7.4 ns), bus-hold functionality, hot-insertion support via Ioff, and compatibility with 2.7–3.6 V supply rails in space-constrained PCB layouts.
Technical Context
The SN74LVTH162374DGGR implements two independent 8-bit positive-edge-triggered D-flip-flop banks, each with dedicated clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Its ABT (Advanced BiCMOS Technology) architecture integrates on-die 22-Ω series output resistors to suppress overshoot/undershoot without external termination.
It supports true hot insertion via Ioff and power-up 3-state logic, ensuring outputs remain high-impedance during power ramping (VCC = 0–1.5 V). Bus-hold circuitry actively maintains valid logic states on undriven D inputs, eliminating need for external pullup/pulldown resistors in floating-bus scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - enables stable operation across unregulated battery rails and low-noise 3.3-V systems. |
| Max Clock Frequency | 160 MHz - supports high-throughput data latching in memory interfaces and synchronous bus controllers. |
| Output Drive | ±12 mA - sufficient to directly drive terminated transmission lines or multiple CMOS loads without buffers. |
| Input Thresholds | VIH = 2.0 V, VIL = 0.8 V - compatible with TTL-level signals while powered from 3.3 V VCC. |
| Propagation Delay | tPLH/tPHL ≤ 6.6 ns at VCC = 3.3 V - ensures tight timing margins in 100+ MHz digital control loops. |
| Bus-Hold Current | ±750 µA dynamic hold current - reliably sustains logic state on unterminated data buses under EMI stress. |
| Power-Up 3-State | Active below 1.5 V VCC - prevents bus contention during system power sequencing and brownout recovery. |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm × 1.2 mm body, 0.5 mm pitch, gull-wing leads, moisture sensitivity level 1 (260°C reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLK, 2CLK | Positive-edge clock input per bank | Triggers simultaneous capture of all 8 D inputs into Q outputs on rising edge; no internal clock distribution delay. |
| 1D1–1D8, 2D1–2D8 | Data inputs (two 8-bit groups) | Each has integrated bus-hold; accepts 0–5.5 V inputs regardless of VCC, enabling mixed-voltage signal routing. |
| 1Q1–1Q8, 2Q1–2Q8 | 3-state buffered outputs | On-chip 22-Ω series resistance reduces ringing; ±12 mA drive supports stub-free daisy-chain bus topologies. |
| 1OE, 2OE | Active-low output-enable per bank | Independent control allows interleaved read/write access to dual 8-bit ports without shared enable contention. |
| VCC, GND | Distributed power/ground pins (12 total) | Minimizes simultaneous switching noise; enables clean signal integrity in high-speed parallel bus applications. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage interface | 5-V-tolerant inputs and outputs operating from 3.3-V VCC - eliminates level-shifters in legacy 5-V system upgrades. |
| Integrated bus-hold | Eliminates external pullup/pulldown resistors on all 16 D inputs - reduces BOM count and PCB area in I/O expanders. |
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive current and bus conflicts during live module replacement in telecom shelves. |
| Flow-through pinout | Input-to-output signal path traverses package left-to-right - simplifies layer routing and minimizes trace crossovers in dense layouts. |
| Low ground bounce | VOLP < 0.8 V at VCC = 3.3 V - maintains noise margin in multi-channel switching environments like FPGA I/O banks. |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module I/O Expansion |
|---|---|
|
Use Scenario: Isolating and latching sensor/actuator signals between microcontroller and ruggedized field bus. IC Role / Device Role / Timing Role: Dual 8-bit register buffers synchronizing asynchronous switch inputs and PWM outputs to MCU clock domain. Use Value: Bus-hold prevents floating inputs during connector hot-plug; 12 mA drive directly sinks LED indicators and relay coils. |
Use Scenario: Adding GPIO capacity to ASAM-compliant ECUs managing door locks, mirror controls, and lighting zones. IC Role / Device Role / Timing Role: Edge-triggered latch capturing CAN-transceiver status bits and driving LIN bus transmitters. Use Value: 2.7–3.6 V operation matches automotive battery range; Ioff protects against reverse-current damage during ECU swap. |
| Test Equipment Digital Pattern Generator | Network Switch Management Interface |
|
Use Scenario: Generating synchronized stimulus waveforms for ASIC validation using FPGA-controlled parallel vectors. IC Role / Device Role / Timing Role: High-speed D-flip-flop bank converting wide parallel pattern words into precise timing-aligned outputs. Use Value: 160 MHz clock rate and sub-7 ns propagation delay meet setup/hold requirements for 100 Mbps digital test vectors. |
Use Scenario: Buffering configuration registers and status flags between management CPU and PHY-layer devices on SFP+ line cards. IC Role / Device Role / Timing Role: Bidirectional bus driver isolating 3.3-V CPU from 5-V PHY side while maintaining signal integrity. Use Value: 5-V-tolerant I/O and distributed VCC/GND pins suppress switching noise in high-density switch fabric control planes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state D-flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16374DGGR | Lower drive (±24 mA), no bus-hold, 1.65–3.6 V supply only - lacks 5-V tolerance and hot-insertion Ioff. | Suitable for pure 3.3-V systems without legacy interface needs; requires external pullups on unused inputs. | Select when cost optimization outweighs mixed-voltage flexibility and board-level simplicity. |
| 74ALVCH162374TTR | Higher speed (200 MHz), same 3.3-V supply, but no integrated 22-Ω resistors - demands external termination for clean edges. | Better for ultra-high-speed test equipment where propagation delay is critical and layout allows discrete termination. | Choose only if tPLH < 5 ns is mandatory and PCB real estate permits added resistors per channel. |
Compared with SN74LVC16374DGGR and 74ALVCH162374TTR, the SN74LVTH162374DGGR uniquely combines 5-V-tolerant I/O, bus-hold, on-die termination, and Ioff - making it optimal for industrial backplanes and automotive modules requiring robustness over raw speed or lowest cost.
Availability
SN74LVTH162374DGGR is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, and network switch management interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVTH162374DGGR 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 connectivity technologies, with decades of heritage in logic and interface IC design.
The SN74LVTH162374DGGR belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for high-reliability, mixed-voltage digital systems in industrial automation and transportation infrastructure.
FAQ
What is the maximum clock frequency supported by SN74LVTH162374DGGR?
The SN74LVTH162374DGGR supports a maximum clock frequency of 160 MHz across its full operating temperature range (–40°C to +85°C) and supply voltage range (2.7 V to 3.6 V), as verified in TI's SCBS262M datasheet timing tables under CL = 50 pF load conditions. This rating applies to both 1CLK and 2CLK inputs independently.
Does SN74LVTH162374DGGR support hot insertion, and how is it implemented?
Yes, SN74LVTH162374DGGR supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0 V to prevent back-current flow, and power-up 3-state logic forces outputs into high-impedance until VCC exceeds 1.5 V. These functions are production-tested per TI's specifications and require no external components to operate correctly.
Can SN74LVTH162374DGGR interface directly with 5-V logic systems?
Yes, SN74LVTH162374DGGR accepts 0–5.5 V input voltages and drives 5-V-tolerant loads while operating from a 3.3-V VCC supply. Its VIH = 2.0 V and VIL = 0.8 V thresholds ensure reliable recognition of TTL-level signals, and its outputs maintain valid logic levels up to 5 V - enabling direct connection to legacy 5-V peripherals without level shifters.
What is the purpose of the bus-hold circuitry on SN74LVTH162374DGGR data inputs?
The bus-hold circuitry on all 16 D inputs of SN74LVTH162374DGGR actively maintains the last-valid logic state when inputs are floating or undriven, eliminating the need for external pullup or pulldown resistors. It draws ±750 µA dynamic current to override noise-induced transitions, improving reliability in noisy industrial environments and reducing PCB component count.
Is SN74LVTH162374DGGR pin-compatible with other 48-pin TSSOP flip-flops like SN74LVC16374DGGR?
No, SN74LVTH162374DGGR is not pin-compatible with SN74LVC16374DGGR. Although both use the 48-pin TSSOP (DGG) package, their pinouts differ significantly - notably in clock/enable assignment and power/ground distribution. The SN74LVTH162374DGGR places 1CLK at pin 47 and 1OE at pin 1, whereas SN74LVC16374DGGR assigns 1CLK to pin 1 and 1OE to pin 19. Layout redesign is required for substitution.
SN74LVTH162374DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- 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:
- 160 MHz
- Max Propagation Delay @ V, Max CL:
- 5.3ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Current - Quiescent (Iq):
- 190 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74LVTH162374DGGR FAQ
1.How can I place an order for SN74LVTH162374DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH162374DGGR 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 SN74LVTH162374DGGR reliable?
The price and inventory of SN74LVTH162374DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH162374DGGR is usually 5 days.
3.What payment methods are accepted for SN74LVTH162374DGGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH162374DGGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH162374DGGR?
SN74LVTH162374DGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH162374DGGR 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 SN74LVTH162374DGGR?
For technical support, including SN74LVTH162374DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH162374DGGR requirements.
6.How does Aetrix verify that SN74LVTH162374DGGR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH162374DGGR 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 SN74LVTH162374DGGR meets industry standards.
7.What is the process for return or replacement of SN74LVTH162374DGGR?
All SN74LVTH162374DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH162374DGGR, 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 SN74LVTH162374DGGR part is unused and in its original packaging.
Return procedure for SN74LVTH162374DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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