My Inquiry
My Account
Texas Instruments SN74LV374ATPWRQ1
- Part No.:
- SN74LV374ATPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LV374ATPWRQ1.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,831
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74LV374ATPWRQ1 from Texas Instruments is an automotive-qualified octal edge-triggered D-type flip-flop with 3-state outputs, operating from 2 V to 5.5 V, featuring Ioff partial-power-down support, ±35 mA output drive, and 5.5 ns minimum clock pulse width at 5 V. It serves as a bidirectional bus interface register in automotive infotainment and body control modules.
For engineers reviewing the SN74LV374ATPWRQ1 datasheet, SN74LV374ATPWRQ1 pinout, SN74LV374ATPWRQ1 application, or SN74LV374ATPWRQ1 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, 3-state enable timing (tdis ≤ 10 ns at 5 V), mixed-mode voltage tolerance, and TSSOP-20 package compatibility with high-density PCB layouts.
Technical Context
This device implements eight independent D-type latches triggered on the rising edge of CLK, each with dedicated D input and Q output. Its 3-state outputs are controlled by a common active-low OE signal that does not affect internal latch state retention.
The SN74LV374ATPWRQ1 integrates Ioff circuitry to disable outputs during power-down, preventing backflow current, and supports mixed-voltage operation-inputs tolerate up to 5.5 V regardless of VCC, enabling interfacing between 3.3-V logic and 5-V buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2 V to 5.5 V - Enables direct use across 2.5-V, 3.3-V, and 5-V systems without level shifters. |
| fmax (VCC = 5 V) | 170 MHz - Supports high-speed data latching in automotive serial bus interfaces and display timing control. |
| tpd (CLK to Q) | 5.9–13.5 ns at 5 V - Ensures deterministic setup/hold timing for synchronous bus arbitration in ECUs. |
| IOL / IOH | ±16 mA at VCC = 4.5–5.5 V - Drives 50-pF loads directly, eliminating need for external buffers in CAN/LIN transceiver I/O staging. |
| tsu / th (VCC = 5 V) | 3 ns setup / 2 ns hold - Tight timing margins simplify timing closure in FPGA-to-microcontroller parallel data paths. |
| Ioff Current | ≤5 μA - Guarantees safe isolation during hot-swap or partial-power-down sequences in modular vehicle electronics. |
| ESD Rating | HBM ±2000 V, MM ±200 V, CDM ±1000 V - Meets automotive ESD robustness requirements per ISO 10605. |
Pinout & Package
TSSOP-20 (PW) package, 6.5 mm × 4.4 mm × 1.2 mm max height, lead pitch 0.65 mm, RoHS-compliant NIPDAU finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Active-Low Output Enable) | Controls all eight outputs simultaneously; tied to VCC via pullup for power-up high-Z safety. |
| 2–9 | 1Q–8Q (Outputs) | 3-state buffered outputs; high-impedance when OE = HIGH, capable of driving 50-pF bus lines. |
| 11–18 | 1D–8D (Data Inputs) | CMOS-compatible inputs accepting 0–5.5 V; support mixed-voltage signaling without clamping diodes. |
| 19 | CLK | Rising-edge-triggered clock; minimum 5 ns pulse width ensures reliable sampling in noisy automotive environments. |
| 10, 20 | GND, VCC | Power pins with separate supply and ground connections; decoupling required within 3 mm of pin 20. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Grade 1 (−40°C to +105°C) - Validated for under-hood and dashboard applications with zero latent defects. |
| Ioff Partial-Power-Down | Blocks reverse current flow when VCC = 0 V - Enables live insertion/removal in modular ADAS domain controllers. |
| Mixed-Mode Voltage Support | Inputs tolerate 0–5.5 V independent of VCC - Simplifies interconnection between 3.3-V MCUs and legacy 5-V sensor subsystems. |
| Low Ground Bounce (VOLP) | <0.8 V at VCC = 3.3 V - Reduces simultaneous switching noise in multi-channel digital clusters and instrument panels. |
| High-Drive 3-State Outputs | ±16 mA at 5 V - Eliminates need for discrete bus buffers in camera module parallel data interfaces. |
Applications
| Automotive Instrument Cluster | Body Control Module (BCM) |
|---|---|
Use Scenario: Latching analog-to-digital converter outputs and switch status signals for real-time gauge rendering. IC Role / Device Role / Timing Role: Octal register synchronizing asynchronous sensor data to MCU clock domain with precise edge alignment. Use Value: Enables deterministic 100+ kHz sampling of speed, RPM, and temperature inputs while maintaining AEC-Q100 reliability. |
Use Scenario: Buffering door lock actuator commands and window position feedback across distributed LIN nodes. IC Role / Device Role / Timing Role: Bidirectional bus driver isolating MCU GPIOs from high-current load circuits during fault conditions. Use Value: Prevents latch-up and ground bounce during simultaneous actuation of multiple solenoids in compact BCM PCBs. |
| Infotainment Head Unit | ADAS Camera Interface |
Use Scenario: Interfacing touch controller ICs and display timing controllers with ARM-based application processors. IC Role / Device Role / Timing Role: Parallel data register aligning burst-mode touch coordinate packets to processor DMA cycles. Use Value: Achieves sub-50 ns timing margin for 24-bit RGB video data staging without external timing compensation. |
Use Scenario: Capturing raw pixel data from parallel-output CMOS image sensors before serialization to MIPI CSI-2. IC Role / Device Role / Timing Role: High-speed data capture latch synchronized to sensor pixel clock for frame integrity. Use Value: Supports 30+ FPS full-HD capture with <2 ns skew across all 8 data lanes, meeting ASIL-B timing constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC374AQPWRQ1 | Lower VCC min (1.65 V), higher ICC (30 μA), same TSSOP-20 pinout | Better suited for 1.8-V subsystems; less noise margin at 2.5-V operation | Select when interfacing with low-voltage FPGAs or SoCs requiring 1.8-V logic compatibility. |
| MC74LVX374DTG | Non-automotive grade, −40°C to +85°C, different pinout (SOIC-20), no Ioff | Lacks AEC-Q100 qualification and partial-power-down protection | Acceptable only for non-safety-critical prototyping or industrial test fixtures without thermal cycling stress. |
Compared with SN74LV374ATPWRQ1, SN74LVC374AQPWRQ1 offers wider low-voltage operation but reduced noise immunity below 2.3 V, while MC74LVX374DTG lacks automotive qualification and Ioff-making SN74LV374ATPWRQ1 the sole choice for production-grade vehicle networks requiring guaranteed hot-swap resilience and extended temperature stability.
Availability
SN74LV374ATPWRQ1 is available at Aetrix Electronics and suitable for automotive instrument clusters, body control modules, and ADAS camera interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LV374ATPWRQ1 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 automotive electronics, with over 50 years of innovation in high-reliability silicon solutions.
The SN74LV374ATPWRQ1 belongs to TI's LV-A family of automotive logic devices, engineered specifically for noise-immune, mixed-voltage data buffering in electric and autonomous vehicle control units.
FAQ
What is the maximum clock frequency supported by SN74LV374ATPWRQ1 at 3.3 V?
The SN74LV374ATPWRQ1 supports a maximum clock frequency of 110 MHz at VCC = 3.3 V ± 0.3 V, as specified in the switching characteristics table under recommended operating conditions. This value is validated across the full −40°C to +105°C automotive temperature range and accounts for worst-case propagation delay (tpd ≤ 16.2 ns) and minimum pulse width (tw ≥ 5.5 ns).
Does SN74LV374ATPWRQ1 support partial-power-down mode, and how is it implemented?
Yes, SN74LV374ATPWRQ1 supports partial-power-down mode via its Ioff circuitry. When VCC = 0 V, the Ioff feature disables all outputs, limiting leakage current to ≤5 μA and preventing damaging backflow from live bus lines into the unpowered device. This behavior is explicitly characterized in the electrical specifications table and enables safe hot-plug operation in modular automotive ECUs.
Can SN74LV374ATPWRQ1 interface directly between a 3.3-V microcontroller and a 5-V peripheral bus?
Yes, SN74LV374ATPWRQ1 supports mixed-mode voltage operation: its inputs accept 0–5.5 V regardless of VCC level, and outputs swing rail-to-rail (0 to VCC). With VCC = 3.3 V, it safely accepts 5-V logic inputs and drives 3.3-V bus loads-eliminating external level shifters in MCU-to-legacy-peripheral bridges used in gateway modules.
What is the recommended power-up sequence for SN74LV374ATPWRQ1 to ensure high-impedance outputs at startup?
To guarantee high-impedance outputs during power-up, OE must be held HIGH until VCC stabilizes. TI recommends tying OE to VCC through a pullup resistor; the minimum resistance is determined by the current-sinking capability of the driving source. This prevents bus contention during brown-out or staggered supply ramp-up in automotive power domains.
Is SN74LV374ATPWRQ1 pin-compatible with the commercial-grade SN74LV374A?
Yes, SN74LV374ATPWRQ1 is pin-compatible with SN74LV374A in the TSSOP-20 (PW) package, sharing identical pinout, electrical timing, and functional behavior. The Q1 suffix denotes AEC-Q100 qualification and extended temperature screening-but no layout changes are required when upgrading from the commercial version in existing designs.
SN74LV374ATPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LV
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 170 MHz
- Max Propagation Delay @ V, Max CL:
- 10.1ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 16mA, 16mA
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Iq):
- 20 µA
- Input Capacitance:
- 2.9 pF
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
SN74LV374ATPWRQ1 FAQ
1.How can I place an order for SN74LV374ATPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LV374ATPWRQ1 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 SN74LV374ATPWRQ1 reliable?
The price and inventory of SN74LV374ATPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LV374ATPWRQ1 is usually 5 days.
3.What payment methods are accepted for SN74LV374ATPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LV374ATPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LV374ATPWRQ1?
SN74LV374ATPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LV374ATPWRQ1 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 SN74LV374ATPWRQ1?
For technical support, including SN74LV374ATPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LV374ATPWRQ1 requirements.
6.How does Aetrix verify that SN74LV374ATPWRQ1 is sourced from the original manufacturer or authorized distributors?
All SN74LV374ATPWRQ1 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 SN74LV374ATPWRQ1 meets industry standards.
7.What is the process for return or replacement of SN74LV374ATPWRQ1?
All SN74LV374ATPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LV374ATPWRQ1, 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 SN74LV374ATPWRQ1 part is unused and in its original packaging.
Return procedure for SN74LV374ATPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74LV374ATPWRQ1 Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
