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Texas Instruments SN74LVTH162374KR
- Part No.:
- SN74LVTH162374KR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-VFBGA
- Datasheet:
-
SN74LVTH162374KR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,726
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Product details
Overview
SN74LVTH162374KR from Texas Instruments is a 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus interface and data latching in mixed-voltage systems. It features dual 8-bit banks, 22-Ω integrated output series resistors, bus-hold on all data inputs, and Ioff support for hot insertion. It operates across –40°C to 85°C with VCC from 2.7 V to 3.6 V and supports 5-V-tolerant inputs.
For engineers reviewing the SN74LVTH162374KR datasheet, SN74LVTH162374KR pinout, SN74LVTH162374KR application, or SN74LVTH162374KR equivalent, key selection considerations include its 160 MHz maximum clock frequency, 12 mA output drive capability, 3-state enable control per bank, low ground bounce (<0.8 V), and compatibility with 3.3-V logic interfacing to 5-V buses.
Technical Context
The SN74LVTH162374KR implements two independent 8-bit positive-edge-triggered D-type flip-flop banks, each with dedicated clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Its ABT (Advanced BiCMOS Technology) architecture enables TTL-level signal translation while operating at 3.3-V VCC, with 5-V-tolerant inputs and bus-hold circuitry eliminating external pull resistors.
It integrates distributed VCC/GND pins and flow-through pinout to minimize switching noise and simplify PCB layout. The device supports hot insertion via Ioff and power-up 3-state functionality, ensuring outputs remain high-impedance during power ramping or when VCC is below 1.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VCC) | 2.7 V to 3.6 V - Enables stable operation under unregulated battery supply down to 2.7 V. |
| Max Clock Frequency | 160 MHz - Supports high-speed data capture in memory interfaces and synchronous bus systems. |
| Output Drive | ±12 mA - Sufficient to directly drive standard TTL loads without external buffers. |
| Input Voltage Tolerance | Up to 5.5 V - Allows direct connection to 5-V logic without level shifters. |
| Bus-Hold Current | ±75 µA - Maintains valid logic state on unused inputs, removing need for external pullup/pulldown resistors. |
| Propagation Delay (tPLH/tPHL) | 1.4 ns to 6.6 ns - Ensures tight timing margins in high-speed register applications. |
| Ground Bounce (VOLP) | <0.8 V at VCC = 3.3 V - Reduces noise coupling into adjacent signals and power rails. |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm × 1.2 mm body, 0.5 mm pitch, lead-free NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1CLK, 2CLK | Positive-edge clock input per bank | Triggers simultaneous latching of eight D inputs into corresponding Q outputs on rising edge. |
| 1D1–1D8, 2D1–2D8 | Data inputs | Accept 5-V-tolerant logic levels; bus-hold circuitry maintains state if left floating. |
| 1Q1–1Q8, 2Q1–2Q8 | 3-state output terminals | Drive bidirectional buses with 22-Ωseries resistance to suppress overshoot/undershoot. |
| 1OE, 2OE | Active-low output-enable control | Independently places each 8-bit bank in high-Z or active drive mode; does not affect internal latch state. |
| VCC, GND | Power and ground | Distributed across package (12×VCC, 12×GND) to reduce simultaneous switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 3.3-V VCC with 5-V-tolerant inputs enables seamless interoperation between 3.3-V and 5-V subsystems. |
| Integrated 22-Ωoutput series resistors | Eliminates need for external termination resistors, reducing BOM count and PCB area in high-speed bus designs. |
| Ioff and power-up 3-state | Prevents backdrive current during hot insertion and ensures outputs stay high-Z until VCC stabilizes above 1.5 V. |
| Flow-through pinout architecture | Input-to-output signal path alignment minimizes trace length and crosstalk in dense PCB layouts. |
| Latch-up immunity & ESD protection | Exceeds 500 mA per JESD17 and 2000-V HBM per JESD22, supporting robust industrial deployment. |
Applications
| Memory Interface Buffering | Industrial I/O Expansion |
|---|---|
|
Use Scenario: Latching address/data lines between a 3.3-V microcontroller and legacy 5-V SRAM or EPROM. IC Role / Device Role / Timing Role: Edge-triggered register synchronizing parallel bus transfers with precise setup/hold timing (tsu = 2.8 ns, th = 1.2 ns). Use Value: Eliminates level-shifter ICs and reduces propagation delay uncertainty versus discrete gate-based solutions. |
Use Scenario: Expanding GPIO count on PLC modules requiring hot-swap capability and noise immunity. IC Role / Device Role / Timing Role: Bidirectional bus driver with independent OE control per 8-bit port and Ioff-enabled safe insertion. Use Value: Enables field-replaceable I/O cards without system shutdown; bus-hold prevents floating inputs during card removal. |
| Telecom Backplane Interface | Automotive Diagnostic Bus Hub |
|
Use Scenario: Isolating and regenerating control signals across a high-noise telecom backplane with mixed 3.3-V/5-V domains. IC Role / Device Role / Timing Role: Low-jitter, low-ground-bounce register buffering critical configuration signals between FPGA and ASIC. Use Value: Distributed VCC/GND pins and 22-Ωoutputs suppress simultaneous switching noise that could corrupt adjacent SERDES lanes. |
Use Scenario: Aggregating diagnostic signals from multiple ECUs onto a shared CAN-compatible control bus in vehicle test equipment. IC Role / Device Role / Timing Role: Synchronized data capture and 3-state multiplexing of status registers prior to serial transmission. Use Value: 160 MHz clock tolerance allows oversampling of transient fault events; 5-V input tolerance matches legacy ECU output standards. |
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 |
|---|---|---|---|
| SN74LVC16374DGGR | Lower drive (±24 mA), no bus-hold, 1.65–3.6 V VCC range, no 5-V input tolerance. | Suitable only for pure 3.3-V systems; requires external pull resistors on unused inputs. | Choose when cost sensitivity outweighs mixed-voltage interface needs and board space permits external biasing. |
| SN74ALVCH162374DLR | Higher speed (200 MHz), same 3.3-V VCC, but lacks Ioff and power-up 3-state; 48-pin SSOP only. | Not suitable for hot-insertion systems; limited to fixed-mount applications with controlled power sequencing. | Select when maximum throughput is critical and hot-swap capability is unnecessary. |
Compared with SN74LVC16374DGGR and SN74ALVCH162374DLR, the SN74LVTH162374KR uniquely combines 5-V input tolerance, bus-hold, Ioff, and power-up 3-state in a single 3.3-V device-making it the only option qualified for mixed-voltage hot-plug I/O expansion without supplemental circuitry.
Availability
SN74LVTH162374KR is available at Aetrix Electronics and suitable for industrial I/O expansion, telecom backplane buffering, automotive diagnostic hubs, and memory interface latching requiring stable component supply across extended temperature ranges.
Supply support for SN74LVTH162374KR 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 delivering analog and embedded processing solutions, with over 90 years of innovation in logic, interface, and power management ICs.
The SN74LVTH162374KR belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for high-speed, low-noise, mixed-voltage data transfer in industrial automation, communications infrastructure, and automotive test systems.
FAQ
What is the maximum clock frequency supported by the SN74LVTH162374KR?
The SN74LVTH162374KR supports a maximum clock frequency of 160 MHz across its full operating temperature range (–40°C to 85°C) and VCC range (2.7 V to 3.6 V). This specification is validated under CL = 50 pF load conditions and reflects guaranteed performance-not just typical values-ensuring reliable timing in high-speed register applications such as memory interfacing and bus buffering.
Does the SN74LVTH162374KR support hot insertion, and how is it implemented?
Yes, the SN74LVTH162374KR supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0 V, preventing damaging back-current flow; and power-up 3-state holds outputs in high-impedance until VCC exceeds 1.5 V. These functions are inherent to the silicon design and require no external components-enabling safe live replacement in modular I/O systems and telecom line cards.
Can the SN74LVTH162374KR interface directly with 5-V logic without level shifters?
Yes, the SN74LVTH162374KR accepts input voltages up to 5.5 V while operating at 3.3-V VCC, making it fully compatible with 5-V TTL outputs. Its inputs are 5-V tolerant, and its outputs swing rail-to-rail (0 V to VCC) with ±12 mA drive strength-allowing direct connection to both 3.3-V and 5-V loads without external level translation circuitry.
What is the purpose of the integrated 22-Ωseries resistors on the SN74LVTH162374KR outputs?
The SN74LVTH162374KR integrates 22-Ωseries resistors on all 16 outputs to damp signal reflections and suppress overshoot/undershoot in high-speed parallel bus environments. This eliminates the need for discrete termination resistors, reduces PCB routing complexity, and improves signal integrity-particularly in compact layouts where trace impedance matching is challenging.
How does bus-hold functionality work on the SN74LVTH162374KR, and when should it be used?
The SN74LVTH162374KR includes active bus-hold circuitry on all data inputs, which maintains the last-valid logic state (with ±75 µA holding current) when inputs float. This feature removes the need for external pullup/pulldown resistors in systems with unterminated or intermittently driven buses-common in modular I/O expanders and FPGA configuration interfaces-while avoiding unintended state transitions.
SN74LVTH162374KR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 56-VFBGA
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
- 56-BGA Microstar Junior (7x4.5)
SN74LVTH162374KR FAQ
1.How can I place an order for SN74LVTH162374KR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH162374KR 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 SN74LVTH162374KR reliable?
The price and inventory of SN74LVTH162374KR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH162374KR is usually 5 days.
3.What payment methods are accepted for SN74LVTH162374KR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH162374KR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH162374KR?
SN74LVTH162374KR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH162374KR 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 SN74LVTH162374KR?
For technical support, including SN74LVTH162374KR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH162374KR requirements.
6.How does Aetrix verify that SN74LVTH162374KR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH162374KR 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 SN74LVTH162374KR meets industry standards.
7.What is the process for return or replacement of SN74LVTH162374KR?
All SN74LVTH162374KR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH162374KR, 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 SN74LVTH162374KR part is unused and in its original packaging.
Return procedure for SN74LVTH162374KR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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