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Texas Instruments SN74LVC828ADWR
- Part No.:
- SN74LVC828ADWR
- Manufacturer:
- Texas Instruments
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVC828ADWR.pdf
- Description:
- IC BUFFER INVERT 3.6V 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,802
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Product details
Overview
SN74LVC828ADWR from Texas Instruments is a 10-bit inverting buffer/driver with dual 3-state enable (OE1/OE2) and 24-pin SOIC (DW) package, operating from 1.65 V to 3.6 V, supporting 5-V-tolerant inputs and mixed-mode 3.3-V/5-V system interfacing in high-density data bus applications.
For engineers reviewing the SN74LVC828ADWR datasheet, SN74LVC828ADWR pinout, SN74LVC828ADWR application, or SN74LVC828ADWR equivalent, key selection criteria include its 6.7 ns max propagation delay at 3.3 V, Ioff partial-power-down capability, ±24 mA output drive, 3.3-V VCC compatibility with 5-V input tolerance, and dual active-low 3-state control for robust bus isolation.
Technical Context
This device implements a 10-bit inverting buffer architecture with two independent active-low 3-state enable inputs (OE1, OE2), where either high input forces all ten Y outputs into high-impedance state. Its logic diagram confirms true inversion from A1–A10 to Y1–Y10, with no internal latching or clocking.
It supports mixed-signal translation via 5.5-V-tolerant inputs while powered from 1.65–3.6-V VCC, and includes Ioff circuitry that disables outputs during power-down to prevent backflow current - critical for hot-swap and partial-power-down systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables direct integration into modern low-voltage digital systems without level-shifting. |
| Input Voltage Tolerance | Up to 5.5 V - allows interfacing with legacy 5-V logic without external clamping or translators. |
| Max Propagation Delay | 6.7 ns at VCC = 3.3 V - ensures timing compliance in high-speed 3.3-V bus environments (e.g., memory address/data buffers). |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50-Ω transmission lines or multiple CMOS loads on shared buses. |
| Ioff Current | ±10 µA at VI/VO = 5.5 V - guarantees safe isolation during power sequencing or partial shutdown. |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - meets industrial-grade robustness requirements for board-level handling and operation. |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial ambient conditions without derating. |
Pinout & Package
SN74LVC828ADWR uses a 24-pin SOIC (DW) package with 0.300-inch body width and standard JEDEC MO-002AC outline. Pin 1 is located at top-left corner with index area marking; leads are gull-wing, lead-free (NiPdAu), MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 | OE1, OE2 | Active-low 3-state enable inputs - either high disables all Y outputs; tied to VCC via pullup for power-up high-Z safety. |
| 2–11 | A1–A10 | Inverting data inputs - accept 1.65–5.5 V signals; drive corresponding Y outputs with polarity inversion. |
| 13–22 | Y1–Y10 | Inverting 3-state outputs - present inverted A-input logic when both OEs are low; high-Z otherwise. |
| 12 | GND | Ground reference - must be connected to system ground plane for noise immunity and proper Ioff operation. |
| 23 | VCC | Supply voltage - powers internal logic and output drivers; decoupling capacitor required near pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| 5-V-tolerant inputs | Enables seamless interface between 3.3-V core logic and 5-V peripherals without external level shifters. |
| Dual active-low 3-state control | Provides redundant bus isolation - either OE1 or OE2 asserted disables all outputs, enhancing system fault containment. |
| Ioff partial-power-down support | Prevents damaging current flow when VCC = 0 V but inputs/outputs remain biased, essential for hot-plug and multi-rail systems. |
| Low dynamic power dissipation | 7 pF typical output capacitance and 10 µA max ICC reduce switching noise and supply current in high-frequency bus toggling. |
| Robust ESD performance | Exceeds JESD22-A114 (2000-V HBM), enabling reliable manufacturing and field operation in uncontrolled environments. |
Applications
| Industrial PLC Backplane Interface | Embedded Memory Address Buffering |
|---|---|
Use Scenario: Isolating and buffering address/data lines between 3.3-V microcontroller and 5-V legacy I/O modules in programmable logic controllers. IC Role / Device Role / Timing Role: Inverting 10-bit buffer with dual 3-state control acts as bidirectional bus isolator and voltage translator on parallel control backplanes. Use Value: Eliminates need for discrete level shifters while maintaining <6.7 ns timing margin and preventing backfeed during module hot-swap events. |
Use Scenario: Driving 10-bit address lines from an ARM Cortex-M4 MCU to external SRAM or Flash memory with strict setup/hold timing. IC Role / Device Role / Timing Role: High-speed inverting buffer provides clean, low-skew address propagation with guaranteed 3.3-V compatible drive strength. Use Value: Delivers ±24 mA drive at 3.3 V to meet memory access timing under capacitive loading up to 50 pF per line. |
| Automotive Body Control Module Bus Extender | Test Equipment Digital Pattern Generator |
Use Scenario: Extending and isolating diagnostic communication lines (e.g., LIN or proprietary parallel debug bus) across sub-system domains with differing supply rails. IC Role / Device Role / Timing Role: 10-bit inverting driver with Ioff ensures safe domain separation during ignition cycling or ECU sleep/wake transitions. Use Value: Prevents cross-domain leakage currents during 12-V system brownout while maintaining 5-V signal integrity on driven lines. |
Use Scenario: Generating synchronized, inverted stimulus patterns for IC functional testing using FPGA-controlled parallel vectors. IC Role / Device Role / Timing Role: Precision 10-bit buffer delivers deterministic 6.7 ns propagation delay and minimal skew (<1 ns) across all Y outputs. Use Value: Enables tight timing correlation between pattern generator and DUT, critical for high-speed digital test repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC827ADWR | Non-inverting 10-bit buffer with identical pinout, VCC range, and drive specs. | Used where signal polarity preservation is required (e.g., address mirroring without inversion). | Select when system logic requires non-inverted data path; otherwise SN74LVC828ADWR is optimal for inverted bus interfaces. |
| 74LVT162244DGGR | 16-bit non-inverting buffer, 3.3-V only (no 5-V input tolerance), higher drive (±32 mA), different pinout (48-pin TSSOP). | Suitable for wider buses requiring higher speed and drive, but incompatible for drop-in replacement due to pin count and voltage limitations. | Choose only when expanding bus width beyond 10 bits and 5-V tolerance is unnecessary; not a pin-compatible substitute. |
Compared with SN74LVC828ADWR, SN74LVC827ADWR offers identical form-factor and electrical specs but preserves input polarity, whereas 74LVT162244DGGR provides greater channel count and drive at the cost of pin compatibility and 5-V input support - making SN74LVC828ADWR uniquely suited for compact, mixed-voltage 10-bit inverted buffering.
Availability
SN74LVC828ADWR is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, embedded memory address buffering, automotive body control module bus extension, and test equipment digital pattern generation requiring stable component supply and long-term production continuity.
Supply support for SN74LVC828ADWR 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 over 50 years of innovation in high-reliability digital interface components.
The SN74LVC828ADWR belongs to TI's LVC logic family, designed specifically for low-voltage, high-speed, mixed-signal interfacing in space-constrained industrial and automotive systems where 5-V compatibility and power-down safety are mandatory.
FAQ
What is the function of OE1 and OE2 on the SN74LVC828ADWR?
OE1 and OE2 are active-low 3-state enable inputs controlling all ten Y outputs. If either is high, all outputs enter high-impedance state - providing dual redundancy for bus isolation. Both must be low for normal inverting buffer operation. This design prevents bus contention during power-up/down or fault conditions, and SN74LVC828ADWR relies on this feature for safe partial-power-down operation.
Does the SN74LVC828ADWR support 5-V input signals while powered from 3.3 V?
Yes, the SN74LVC828ADWR accepts input voltages up to 5.5 V regardless of VCC (1.65–3.6 V), enabling direct connection to 5-V logic without external level shifters. This mixed-mode capability is explicitly specified in the datasheet and verified across temperature and voltage ranges, making SN74LVC828ADWR ideal for bridging legacy and modern logic domains.
What is the maximum output drive current for the SN74LVC828ADWR at 3.3 V?
At VCC = 3.3 V, the SN74LVC828ADWR delivers ±24 mA output current (IOL = 24 mA, IOH = –24 mA) per Y output under recommended operating conditions. This drive strength supports fanout to multiple CMOS loads or termination of 50-Ω transmission lines, and is confirmed in the Electrical Characteristics table of the official TI datasheet for SN74LVC828ADWR.
Is the SN74LVC828ADWR pin-compatible with other packages in the same family?
No - SN74LVC828ADWR uses the 24-pin SOIC (DW) package. While the SN74LVC828A logic function is identical across DW, PW, DGV, DB, and NS packages, pinouts differ significantly between SOIC (DW), TSSOP (PW), TVSOP (DGV), SSOP (DB), and SOP (NS). SN74LVC828ADWR is not pin-compatible with SN74LVC828APWR or SN74LVC828ADGVR; PCB layout must match the specific DW footprint.
How does the Ioff feature work in the SN74LVC828ADWR?
The Ioff circuitry in SN74LVC828ADWR disables all outputs when VCC = 0 V, limiting input/output leakage to ±10 µA even if signals up to 5.5 V remain present. This prevents damaging back-current flow through the device during power-down or hot-swap events. The feature is inherent to SN74LVC828ADWR's silicon design and requires no external configuration.
SN74LVC828ADWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 24-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 10
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC
SN74LVC828ADWR FAQ
1.How can I place an order for SN74LVC828ADWR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC828ADWR 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 SN74LVC828ADWR reliable?
The price and inventory of SN74LVC828ADWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC828ADWR is usually 5 days.
3.What payment methods are accepted for SN74LVC828ADWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC828ADWR transactions.
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4.How is shipping managed for SN74LVC828ADWR?
SN74LVC828ADWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC828ADWR 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 SN74LVC828ADWR?
For technical support, including SN74LVC828ADWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC828ADWR requirements.
6.How does Aetrix verify that SN74LVC828ADWR is sourced from the original manufacturer or authorized distributors?
All SN74LVC828ADWR 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 SN74LVC828ADWR meets industry standards.
7.What is the process for return or replacement of SN74LVC828ADWR?
All SN74LVC828ADWR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC828ADWR, 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 SN74LVC828ADWR part is unused and in its original packaging.
Return procedure for SN74LVC828ADWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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