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Texas Instruments SN74LVT32240GKER
- Part No.:
- SN74LVT32240GKER
- Manufacturer:
- Texas Instruments
- Package:
- 96-LFBGA
- Datasheet:
-
SN74LVT32240GKER.pdf
- Description:
- IC BUFFER INVERT 3.6V 96LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,832
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Product details
Overview
SN74LVT32240GKER from Texas Instruments is a 32-bit inverted buffer/line driver operating at 2.7–3.6 V VCC, supporting mixed-mode 5-V input tolerance and hot-insertion via Ioff and power-up 3-state. It delivers 64 mA sink current per output, 3.5 ns typical propagation delay (A→Y), and 4.9 ns max disable time (OE→Y), deployed in high-density memory address and clock distribution systems.
For engineers reviewing the SN74LVT32240GKER datasheet, SN74LVT32240GKER pinout, SN74LVT32240GKER application, or SN74LVT32240GKER equivalent, key selection criteria include its 32-bit configurable buffering (1×32/2×16/4×8/8×4), symmetrical active-low OE control, 0.8 V typical ground bounce, and LFBGA-168 (GKE) package compatibility with battery-backed and mixed-voltage bus interfaces.
Technical Context
This device implements eight independent 4-bit inverting buffers, each with dedicated active-low output-enable (OE) inputs and TTL-compatible 5-V tolerant inputs while powered from 3.3-V VCC. Its Ioff circuitry blocks current backflow during power-down, and power-up 3-state ensures outputs remain high-impedance until VCC exceeds 1.5 V.
The logic diagram confirms fully symmetrical architecture: all 32 data inputs (A1–A4 per group) drive inverted outputs (Y1–Y4), with OE pins controlling corresponding 4-bit segments. Absolute maximum ratings allow 7-V input voltage and −0.5 V to 4.6 V VCC, enabling robust operation in unregulated battery environments down to 2.7 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports unregulated Li-ion or 3.3-V rail with ±0.3-V margin for supply variation |
| IOL / IOH | 64 mA sink / −32 mA source - drives heavy capacitive loads (e.g., >10 pF trace + termination) without signal degradation |
| tPLH / tPHL | 1 ns min / 3.5 ns typ / 4 ns max - enables sub-250 MHz bus operation with tight timing margins |
| VIL / VIH | 0.8 V / 2.0 V - compatible with standard TTL logic thresholds despite 3.3-V supply |
| VI (Input Voltage) | −0.5 V to 5.5 V - accepts 5-V signals directly without level shifters in mixed-voltage systems |
| IOZH / IOZL | ±5 µA - ensures minimal leakage in 3-state mode, critical for low-power standby states |
| VOL @ IOL=64 mA | 0.55 V max at VCC=3.0 V - guarantees solid logic-low margin under full load |
Pinout & Package
LFBGA-168 package (GKE), 12×12 mm body, 0.8-mm ball pitch, bottom-side thermal pad, JEDEC MO-255 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A4, 2A1–2A4, ..., 8A1–8A4 (128 pins) | Data inputs (8 groups × 4 bits) | Accept TTL-level signals; drive inverted outputs Y1–Y4 per group |
| 1Y1–1Y4, 2Y1–2Y4, ..., 8Y1–8Y4 (128 pins) | Inverted data outputs (8 groups × 4 bits) | Provide complementary buffered signals with 64 mA sink capability |
| 1OE–8OE (8 pins) | Active-low output-enable controls | Independently enable/disable each 4-bit segment; tied high via pullup for safe power-up |
| GND (24 pins) | Ground terminals | Distributed across package for low-inductance return paths and reduced ground bounce |
| 1VCC, 2VCC (12 pins) | Power supply inputs | Split VCC rails per functional quadrant minimize supply noise coupling between buffer groups |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant inputs on 3.3-V VCC enable direct interfacing with legacy 5-V peripherals without external level shifters |
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive damage and bus contention during live board insertion into backplanes |
| Configurable buffering | Eight independent 4-bit sections allow flexible partitioning as 1×32-, 2×16-, 4×8-, or 8×4-bit drivers per system requirement |
| Low ground bounce | Typical VOLP < 0.8 V at 3.3 V ensures signal integrity in high-speed parallel buses with simultaneous switching outputs |
| Battery operation down to 2.7 V | Guaranteed functionality across full industrial temperature range (−40°C to 85°C) with brownout resilience |
Applications
| Memory Address Buffering | Clock Distribution Network |
|---|---|
|
Use Scenario: Driving 32-bit address lines from a microcontroller to multiple SRAM or Flash devices on a dense PCB. IC Role / Device Role / Timing Role: Inverting 32-bit address buffer with per-group OE control for selective chip enable sequencing. Use Value: Eliminates need for discrete inverters and level shifters; 3.5 ns propagation delay maintains setup/hold timing across 100+ MHz address buses. |
Use Scenario: Distributing a single system clock to eight synchronous peripheral modules with matched skew. IC Role / Device Role / Timing Role: Low-skew, inverted clock fanout buffer with independent enable per 4-output group. Use Value: 0.5 ns max output skew (tsk(o)) and 4.2 ns max disable time ensure deterministic clock gating across distributed subsystems. |
| Backplane Bus Transceiver Interface | Mixed-Voltage System Interconnect |
|
Use Scenario: Isolating and driving a 32-bit parallel data bus between a 3.3-V FPGA and a 5-V legacy controller card. IC Role / Device Role / Timing Role: Bidirectional-capable line driver (with external direction control) providing voltage translation and drive strength. Use Value: 5-V input tolerance and 64 mA output drive meet backplane loading requirements while maintaining signal integrity over 15-cm traces. |
Use Scenario: Interfacing a 3.3-V SoC with 5-V sensors, displays, and communication ICs in portable medical equipment. IC Role / Device Role / Timing Role: Level-translating buffer enabling seamless integration of heterogeneous voltage-domain components. Use Value: No external biasing or resistors needed; operates reliably from 2.7 V during battery discharge, extending runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVC32240ZKER | Lower VCC range (1.65–3.6 V); 3.3 ns max tPHL; no 5-V input tolerance | Suitable only for pure 3.3-V or dual-supply 1.8/3.3-V systems; not for 5-V interface | Select when lower static power (ICC = 0.1 mA) and tighter timing are prioritized over mixed-voltage compatibility |
| SN74LVC32244GKER | Non-inverting output polarity; identical VCC, IOL, and pinout; same GKE package | Requires logic inversion elsewhere in design if system expects inverted outputs | Choose when signal polarity must match upstream logic without additional gates; otherwise, SN74LVT32240GKER provides native inversion |
Compared with SN74ALVC32240ZKER and SN74LVC32244GKER, the SN74LVT32240GKER uniquely combines 5-V input tolerance, inverted output logic, and hot-insertion support-making it irreplaceable in legacy-interfacing, battery-powered, or backplane-reliant designs where voltage translation and robustness are non-negotiable.
Availability
SN74LVT32240GKER is available at Aetrix Electronics and suitable for memory subsystems, clock distribution networks, backplane interconnects, and mixed-voltage industrial controllers requiring stable component supply across extended lifecycle commitments.
Supply support for SN74LVT32240GKER 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 innovation in high-speed interface and power-efficient logic families.
The SN74LVT32240GKER belongs to TI's Widebus+™ family-designed specifically to increase density and performance of 3-state memory address drivers, clock drivers, and bus-oriented transceivers in space-constrained, high-speed digital systems.
FAQ
What is the function of the SN74LVT32240GKER?
The SN74LVT32240GKER is a 32-bit inverting buffer and line driver with eight independent 4-bit sections, each controlled by an active-low output-enable (OE) input. It operates from 2.7 V to 3.6 V, accepts 5-V-tolerant inputs, and provides 64 mA sink current per output. Its primary role is to strengthen and invert parallel digital signals in memory, clock, and bus applications-enabling reliable signal transmission across mixed-voltage domains without external level shifters.
Does the SN74LVT32240GKER support hot insertion?
Yes, the SN74LVT32240GKER supports hot insertion through two integrated features: Ioff circuitry disables outputs when VCC = 0 V to prevent damaging current backflow, and power-up 3-state holds all outputs in high-impedance until VCC exceeds 1.5 V. These functions are fully specified per JESD78 Class II latch-up and JESD22 ESD standards, making the SN74LVT32240GKER suitable for live-plug applications in telecom backplanes and modular industrial systems.
What package type does the SN74LVT32240GKER use?
The SN74LVT32240GKER uses the LFBGA-168 package (GKE variant), measuring 12 mm × 12 mm with 0.8-mm ball pitch and a bottom thermal pad. This fine-pitch ball grid array supports high I/O density and thermal dissipation in compact PCB layouts. The top-side marking "VJ240" identifies the device, and the package complies with JEDEC MO-255 standards for mechanical and solder-reflow compatibility.
Can the SN74LVT32240GKER operate with a 2.7-V supply?
Yes, the SN74LVT32240GKER is fully specified to operate at VCC = 2.7 V across the full industrial temperature range (−40°C to 85°C). At this minimum supply, it maintains guaranteed VOL ≤ 0.5 V at 24 mA, tPHL ≤ 4 ns, and VIH ≥ 2.0 V-ensuring reliable interface with TTL and LVTTL logic even during battery brownout conditions. This capability is explicitly validated in the recommended operating conditions table of the SCBS747C datasheet.
How many independent output-enable controls does the SN74LVT32240GKER have?
The SN74LVT32240GKER has eight independent active-low output-enable (OE) inputs-1OE through 8OE-one for each 4-bit buffer section. This allows granular control over signal routing: for example, enabling only the first four 4-bit groups for address latching while keeping others disabled, or sequencing enable timing across clock domains. Each OE pin must be pulled high (e.g., via resistor to VCC) to ensure safe high-impedance state during power-up.
SN74LVT32240GKER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 96-LFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 8
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 96-LFBGA (13.5x5.5)
SN74LVT32240GKER FAQ
1.How can I place an order for SN74LVT32240GKER through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT32240GKER 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 SN74LVT32240GKER reliable?
The price and inventory of SN74LVT32240GKER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT32240GKER is usually 5 days.
3.What payment methods are accepted for SN74LVT32240GKER?
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4.How is shipping managed for SN74LVT32240GKER?
SN74LVT32240GKER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT32240GKER 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 SN74LVT32240GKER?
For technical support, including SN74LVT32240GKER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT32240GKER requirements.
6.How does Aetrix verify that SN74LVT32240GKER is sourced from the original manufacturer or authorized distributors?
All SN74LVT32240GKER 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 SN74LVT32240GKER meets industry standards.
7.What is the process for return or replacement of SN74LVT32240GKER?
All SN74LVT32240GKER units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT32240GKER, 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 SN74LVT32240GKER part is unused and in its original packaging.
Return procedure for SN74LVT32240GKER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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