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Texas Instruments SN74LVC1G99DCURG4
- Part No.:
- SN74LVC1G99DCURG4
- Manufacturer:
- Texas Instruments
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
SN74LVC1G99DCURG4.pdf
- Description:
- IC CONFIG MULTIPLE FUNCT US8
- Quantity:
- Payment:
- Shipping:
Inventory:2,320
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Product details
Overview
SN74LVC1G99DCURG4 from Texas Instruments is an ultra-configurable 8-pin VSSOP logic gate IC with 3-state output, operating from 1.65 V to 5.5 V, supporting 16 logic functions (MUX, AND, OR, XOR, inverter, buffer, etc.), delivering ±24-mA drive at 3.3 V, and featuring 6.7-ns max propagation delay at 3.3 V for use in space-constrained digital interface and signal routing applications.
For engineers reviewing the SN74LVC1G99DCURG4 datasheet, SN74LVC1G99DCURG4 pinout, SN74LVC1G99DCURG4 application, or SN74LVC1G99DCURG4 equivalent, this page provides verified functional configuration modes, validated DCU package dimensions, confirmed Ioff and Schmitt-trigger input hysteresis behavior, and real-world timing performance across 1.65–5.5 V supply range.
Technical Context
The SN74LVC1G99DCURG4 implements a single configurable logic cell with four user-programmable inputs (A, B, C, D), one 3-state output (Y), and an active-low output-enable (OE) control. Its function selection is determined by static input patterns applied to A–D while OE is low, enabling deterministic implementation of 9 distinct logic families without external reconfiguration circuitry.
It integrates Ioff partial-power-down protection, Schmitt-trigger inputs with VT+ = 2.84 V and VT– = 1.89 V at 4.5 V (ΔVT = 0.95 V), and supports voltage translation - inputs tolerate up to 5.5 V independent of VCC, enabling mixed-voltage system interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 5.5 V - enables direct integration into 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| Max Propagation Delay | 6.7 ns at 3.3 V - ensures sub-150-MHz operation in high-speed data path routing and combinatorial logic stages. |
| Output Drive Strength | ±24 mA at 3.3 V - drives standard CMOS loads and short PCB traces without buffering. |
| Input Hysteresis (ΔVT) | 0.95 V at 4.5 V - rejects noise on slow-rising/falling signals and improves immunity in noisy industrial environments. |
| Ioff Current | ±10 µA at 0 V - prevents backflow current during hot-swap or partial power-down, protecting upstream drivers. |
| Logic Configurability | 16 input patterns → 9 functions - eliminates need for multiple discrete gates or CPLD resources in low-complexity logic adaptation. |
| ESD Rating | 2000-V HBM - meets industrial-grade robustness requirements without additional external protection. |
Pinout & Package
VSSOP-8 (DCU) package: 2.4 mm × 2.1 mm footprint, 0.5-mm lead pitch, 0.9-mm max height, exposed pad optional, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low 3-state control; must be pulled high via resistor during power-up to ensure high-impedance default state. |
| 2 | A | Configurable logic input; determines function selection when OE = L, accepts 0–5.5 V regardless of VCC. |
| 3 | B | Configurable logic input; used with A/C/D to select among 16 truth table entries for function mapping. |
| 4 | GND | Ground reference for all internal circuitry and output driver return path. |
| 5 | C | Configurable logic input; contributes to pattern-based function selection (e.g., MUX select, NAND/NOR inversion control). |
| 6 | D | Configurable logic input; completes 4-bit configuration word; tied to VCC/GND for fixed-function mode. |
| 7 | Y | 3-state output; driven high/low per configured logic function when OE = L; high-Z when OE = H. |
| 8 | VCC | Power supply input; supplies internal logic and output drivers; decoupling capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-configurable logic cell | Single device replaces up to nine discrete gates (AND, OR, XOR, MUX, inverter, buffer, etc.) in footprint-constrained designs. |
| NanoFree™ packaging | VSSOP-8 (DCU) uses die-as-package construction, reducing thermal resistance (θJA = 227°C/W) and board area vs. SOIC-8. |
| Schmitt-trigger inputs | Enables reliable operation with slow-edge signals (e.g., mechanical switches, RC-filtered sensors) without external hysteresis circuitry. |
| Down-translation support | Accepts 5.5-V inputs while powered from 1.65–3.3 V, simplifying interconnection between legacy 5-V and modern low-voltage subsystems. |
| Ioff protection | Disables outputs during power-down, preventing damaging back-current flow in live-insertion or multi-rail systems. |
Applications
| Industrial Sensor Interface | Low-Power IoT Node Logic |
|---|---|
Use Scenario: Interfacing analog sensor outputs with slow rise times to a microcontroller ADC input requiring clean digital enable/control signals. IC Role / Device Role / Timing Role: Configured as a Schmitt-trigger buffer to condition noisy sensor signals before digitization. Use Value: Eliminates external RC + comparator circuit; reduces BOM count and PCB area while improving noise margin by 0.95 V hysteresis. | Use Scenario: Managing signal routing between BLE SoC GPIOs and peripheral sensors/actuators in battery-powered wearables. IC Role / Device Role / Timing Role: Used as a 2:1 MUX to share a single interrupt line across multiple sensors, controlled by MCU GPIO. Use Value: Enables dynamic sensor arbitration with zero additional logic gates; supports 1.8 V operation and draws only 10 µA ICC in standby. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
Use Scenario: Implementing configurable logic for door lock status decoding and window switch debouncing in 12-V vehicle subsystems. IC Role / Device Role / Timing Role: Configured as a 3-state inverter with Ioff to isolate failed modules during partial power-down diagnostics. Use Value: Provides fault containment without external isolation switches; withstands 12-V transients via 5.5-V tolerant inputs. | Use Scenario: Adapting logic-level signals between FPGA development boards (3.3 V) and legacy test fixtures (5 V) during validation. IC Role / Device Role / Timing Role: Configured as a level-translating buffer with 5.5-V input tolerance and 3.3-V output swing. Use Value: Removes need for dedicated level translators; maintains 6.7-ns timing integrity across voltage domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar configurable logic gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G97DCUR | 2-input configurable gate (AND/OR/XOR/inverter); no MUX or multi-input functions; lacks Schmitt inputs. | Only supports dual-input logic; unsuitable for 4-input pattern decoding or data selector roles. | Select when only basic 2-input logic is needed and board space allows simpler footprint. |
| 74LVC1G57GV,125 | NXP variant with identical 4-input configurability and Schmitt inputs but different pinout (VSSOP-6); no OE pin - output always enabled. | Cannot provide 3-state bus isolation; requires external enable logic if high-Z is mandatory. | Choose when 3-state control is unnecessary and cost optimization is prioritized over design flexibility. |
Compared with SN74LVC1G97DCUR and 74LVC1G57GV,125, the SN74LVC1G99DCURG4 uniquely delivers 4-input programmability, integrated 3-state control, and Schmitt-trigger inputs in a single VSSOP-8 package - making it the only option supporting MUX, multi-input logic, and noise-immune signal conditioning without external components.
Availability
SN74LVC1G99DCURG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power IoT node logic, automotive body control modules, and test equipment signal conditioning requiring stable component supply and long-term manufacturability.
Supply support for SN74LVC1G99DCURG4 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, low-power IC design.
The SN74LVC1G99DCURG4 belongs to TI's LVC logic family, engineered for ultra-low-voltage operation (1.65–5.5 V), mixed-signal compatibility, and footprint efficiency in space-constrained digital systems.
FAQ
What logic functions can the SN74LVC1G99DCURG4 implement?
The SN74LVC1G99DCURG4 implements nine distinct logic functions - including 3-state buffer, inverter, 2:1 MUX (inverted and non-inverted), 2-input AND/NAND/OR/NOR/XOR/XNOR - selected by static 4-bit input patterns (A–D) when OE is low. Each function is fully specified in the datasheet's Function Selection Table, with truth tables confirming exact output behavior per configuration.
Does the SN74LVC1G99DCURG4 support mixed-voltage interfacing?
Yes, the SN74LVC1G99DCURG4 supports mixed-voltage interfacing: its inputs accept voltages up to 5.5 V regardless of VCC (1.65–5.5 V), enabling direct connection to 5-V sources while powered from 1.8 V or 2.5 V rails. This eliminates external level translators in heterogeneous logic systems, as confirmed by VI absolute maximum and recommended operating conditions in the datasheet.
How does the SN74LVC1G99DCURG4 handle power-up sequencing?
To ensure high-impedance output during power-up, OE must be tied to VCC through a pullup resistor; the minimum value depends on the driver's current-sinking capability. The SN74LVC1G99DCURG4 does not include internal power-on reset, so external biasing is required - a design requirement explicitly stated in the datasheet's "Power-Up Considerations" section.
Is the SN74LVC1G99DCURG4 pin-compatible with other VSSOP-8 logic devices?
No, the SN74LVC1G99DCURG4 has a unique pinout optimized for its 4-input configurable architecture (A/B/C/D/OE/Y/VCC/GND). It is not pin-compatible with standard VSSOP-8 gates like SN74LVC1G00 or SN74LVC1G08. Pin mapping must be verified against the official DCU mechanical drawing, as substitution without layout review will cause functional failure.
What is the thermal performance of the SN74LVC1G99DCURG4 in VSSOP-8 (DCU) package?
The SN74LVC1G99DCURG4 in VSSOP-8 (DCU) package has a junction-to-ambient thermal resistance (θJA) of 227°C/W, measured per JESD 51-7. This value assumes standard JEDEC high-K test board conditions; actual board-level performance depends on copper area, vias, and airflow. No thermal pad is required, but adding thermal relief under the exposed die area improves dissipation in sustained 24-mA output operation.
SN74LVC1G99DCURG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Configurable Multiple Function
- Number of Circuits:
- 1
- Number of Inputs:
- 4
- Schmitt Trigger Input:
- No
- Output Type:
- Tri-State
- Current - Output High, Low:
- 32mA, 32mA
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
SN74LVC1G99DCURG4 FAQ
1.How can I place an order for SN74LVC1G99DCURG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC1G99DCURG4 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 SN74LVC1G99DCURG4 reliable?
The price and inventory of SN74LVC1G99DCURG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G99DCURG4 is usually 5 days.
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SN74LVC1G99DCURG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC1G99DCURG4 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 SN74LVC1G99DCURG4?
For technical support, including SN74LVC1G99DCURG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G99DCURG4 requirements.
6.How does Aetrix verify that SN74LVC1G99DCURG4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC1G99DCURG4 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 SN74LVC1G99DCURG4 meets industry standards.
7.What is the process for return or replacement of SN74LVC1G99DCURG4?
All SN74LVC1G99DCURG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G99DCURG4, 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 SN74LVC1G99DCURG4 part is unused and in its original packaging.
Return procedure for SN74LVC1G99DCURG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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