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Texas Instruments SN74AUC1G17DBVR
- Part No.:
- SN74AUC1G17DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
SN74AUC1G17DBVR.pdf
- Description:
- IC BUF NON-INVERT 2.7V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,121
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Product details
Overview
SN74AUC1G17DBVR from Texas Instruments is a single Schmitt-trigger buffer IC designed for sub-1-V to 2.7-V operation, optimized at 1.8 V with 2.4 ns max propagation delay, ±8-mA output drive, and Ioff partial-power-down support. It performs Y = A logic buffering with hysteresis (ΔVT ≥ 0.37 V at 1.65 V) and is used in portable audio signal conditioning and level-shifting interfaces.
For engineers reviewing the SN74AUC1G17DBVR datasheet, SN74AUC1G17DBVR pinout, SN74AUC1G17DBVR application, or SN74AUC1G17DBVR equivalent, key selection criteria include its 1.65–1.95-V nominal VCC range, 3.6-V I/O tolerance, NanoFree™ SOT-23 package, Schmitt-trigger input thresholds (VT+ = 1.16 V, VT– = 0.62 V at 1.65 V), and Ioff-enabled back-drive protection in mixed-voltage systems.
Technical Context
The SN74AUC1G17DBVR implements a noninverting Schmitt-trigger buffer with asymmetric input thresholds (VT+ > VT–) to reject noise on slow-rising or noisy digital signals. Its architecture supports rail-to-rail input operation from 0.8 V to 3.6 V and delivers clean, fast edge regeneration at 1.8 V with 2.4 ns tpd into 15 pF.
It features Ioff circuitry that disables outputs during power-down, preventing current backflow when VCC = 0 V while inputs remain biased at 0–3.6 V. The device operates across –40°C to +85°C and meets JESD 78 Class II latch-up (>100 mA) and JESD 22 ESD ratings (2000-V HBM, 1000-V CDM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - enables interoperability between 0.9-V, 1.2-V, 1.5-V, and 1.8-V logic domains |
| tpd (max) | 2.4 ns at 1.8 V, CL = 30 pF - ensures timing-critical signal integrity in high-speed portable interfaces |
| Output Drive | ±8 mA at 1.65 V - sufficient to drive multiple CMOS loads or short PCB traces without external buffering |
| Hysteresis ΔVT | 0.37 V (min) at 1.65 V - provides robust noise immunity against ground bounce or crosstalk in noisy environments |
| Ioff Current | ±10 µA max at 2.7 V - guarantees safe isolation during partial power-down in battery-backed or hot-swap systems |
| ESD Rating | 2000-V HBM - meets industrial handling requirements without additional board-level protection |
| ICC (max) | 10 µA - supports ultra-low-power always-on monitoring paths in portable devices |
Pinout & Package
SOT-23 (DBV) 5-pin package: 2.90 mm × 1.60 mm body, 1.45 mm max height, tape-and-reel (3000 pcs), RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pad - must be left floating or grounded per layout best practice; no electrical function |
| 2 (A) | Input | Schmitt-trigger logic input accepting 0–3.6 V; threshold hysteresis rejects noise on slow edges |
| 3 (GND) | Ground reference | Primary return path for I/O and supply currents; requires low-inductance connection to system ground plane |
| 4 (Y) | Output | Noninverting buffered output with ±8-mA drive; supports 3.6-V tolerant signaling in mixed-voltage systems |
| 5 (VCC) | Positive supply | Core logic supply (0.8–2.7 V); powers internal circuitry and enables Ioff control when VCC = 0 V |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-package construction eliminates bond wires and mold compound, reducing parasitic inductance and enabling 2.9 × 1.6 mm footprint |
| 3.6-V I/O tolerance | Allows direct interfacing with 3.3-V or 2.5-V peripherals while powered from 1.8-V rails - eliminates level-shifters |
| Ioff partial-power-down | Outputs enter high-Z state when VCC = 0 V, blocking back-current from live buses - critical for hot-plug and battery-save modes |
| Sub-1-V operability | Functional down to 0.8 V VCC - supports emerging ultra-low-power microcontroller I/O domains and energy-harvesting systems |
| Schmitt-trigger input | VT+ = 1.16 V / VT– = 0.62 V (at 1.65 V) - provides >300 mV hysteresis to suppress chatter on RC-filtered or long-trace signals |
Applications
| Portable Audio Signal Conditioning | Low-Voltage Microcontroller Interface |
|---|---|
Use Scenario: Cleaning noisy button press or encoder signals in MP3 players and wireless headsets before MCU GPIO sampling. IC Role / Device Role / Timing Role: Schmitt-trigger buffer regenerates degraded edges and adds noise margin to prevent false interrupts. Use Value: Eliminates software debouncing overhead and reduces missed/ghost key events in battery-constrained devices. |
Use Scenario: Interfacing 1.8-V FPGA I/O banks with 3.3-V sensor modules in embedded PCs or SSD controllers. IC Role / Device Role / Timing Role: Level-shifting buffer with 3.6-V tolerant inputs accepts higher-voltage signals while driving 1.8-V logic cleanly. Use Value: Removes need for discrete MOSFET translators, saving PCB area and BOM cost in space-limited designs. |
| Mixed-Rail Power Sequencing | Hot-Swap Signal Isolation |
Use Scenario: Enabling clean enable/disable sequencing between 1.2-V core and 1.8-V I/O rails in telecom AC/DC supplies. IC Role / Device Role / Timing Role: Buffer gates power-enable signals with hysteresis to prevent oscillation during rail ramp-up/down. Use Value: Ensures monotonic power-state transitions and avoids latch-up during brown-out conditions. |
Use Scenario: Isolating USB or PCIe reset lines during hot-plug insertion in enterprise tablets and video analytics servers. IC Role / Device Role / Timing Role: Ioff-enabled buffer blocks back-current when downstream module is unpowered but upstream bus remains live. Use Value: Prevents damage to powered subsystems and eliminates need for complex power-gating FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DBVR | Wider VCC range (1.65–5.5 V), higher ICC (10 µA vs. 10 µA), slower tpd (3.5 ns @ 3.3 V), no sub-1-V operation | Preferred where 5-V compatibility or legacy 3.3-V systems dominate; not suitable for <1.2-V domains | Select when interfacing with 5-V peripherals or where higher drive (±24 mA) outweighs speed and voltage flexibility |
| NC7SZ17P5X | Same SOT-23-5 package, 0.9–3.6 V VCC, tpd = 3.5 ns @ 1.8 V, lower ESD (1500-V HBM), no Ioff | Lacks Ioff and has reduced latch-up immunity - unsuitable for partial-power-down or safety-critical hot-swap | Choose for cost-sensitive consumer audio where full power cycling is guaranteed and ESD risk is low |
Compared with SN74LVC1G17DBVR and NC7SZ17P5X, the SN74AUC1G17DBVR uniquely combines sub-1-V operation, Ioff, and 2.4-ns speed - making it optimal for next-gen portable and mixed-rail industrial systems requiring both ultra-low voltage and robust isolation.
Availability
SN74AUC1G17DBVR is available at Aetrix Electronics and suitable for portable audio, embedded PC, and solid-state drive (SSD) applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SN74AUC1G17DBVR 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 90 years of innovation in power management and signal chain technologies.
The SN74AUC1G17DBVR belongs to TI's AUC Sub-1-V Little Logic family, engineered for ultra-low-voltage signal conditioning in portable, battery-powered, and energy-efficient systems where traditional logic families cannot operate.
FAQ
What is the recommended operating voltage range for the SN74AUC1G17DBVR?
The SN74AUC1G17DBVR is fully specified for 0.8 V to 2.7 V VCC, with optimal performance at 1.65–1.95 V. Operation below 0.8 V may result in undefined behavior, and exceeding 2.7 V risks reliability degradation. The device maintains 3.6-V I/O tolerance regardless of VCC, enabling safe interfacing with higher-voltage signals.
Does the SN74AUC1G17DBVR support partial power-down functionality?
Yes, the SN74AUC1G17DBVR includes Ioff circuitry that disables outputs when VCC = 0 V, limiting Ioff current to ±10 µA maximum. This prevents damaging current backflow from live inputs or outputs into a powered-down device - a critical feature for hot-swap and battery-save modes in systems using the SN74AUC1G17DBVR.
What is the hysteresis voltage (ΔVT) of the SN74AUC1G17DBVR at 1.8 V supply?
At VCC = 1.8 V, the SN74AUC1G17DBVR exhibits VT+ = 1.22 V (typ) and VT– = 0.82 V (typ), yielding a hysteresis ΔVT of 0.40 V (typ). This value ensures reliable noise rejection on slow or noisy input signals - a key design advantage of the SN74AUC1G17DBVR in real-world portable electronics.
Can the SN74AUC1G17DBVR be used with 3.3-V input signals while powered from 1.8 V?
Yes, the SN74AUC1G17DBVR supports 3.6-V tolerant inputs, allowing 3.3-V signals to be safely applied to pin A even when VCC = 1.8 V. This eliminates external level shifters in mixed-voltage systems - a defining capability of the SN74AUC1G17DBVR in modern low-power interface designs.
What package type and dimensions does the SN74AUC1G17DBVR use?
The SN74AUC1G17DBVR uses the SOT-23 (DBV) package: 5-pin, 2.90 mm × 1.60 mm body size, 1.45 mm maximum height, with NiPdAu lead finish and MSL Level-1 rating. Its NanoFree™ construction places the silicon die directly in the package - reducing parasitics and enabling compact layouts essential for the SN74AUC1G17DBVR's target applications.
SN74AUC1G17DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- Schmitt Trigger
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 9mA, 9mA
- Voltage - Supply:
- 0.8V ~ 2.7V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
SN74AUC1G17DBVR FAQ
1.How can I place an order for SN74AUC1G17DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC1G17DBVR 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 SN74AUC1G17DBVR reliable?
The price and inventory of SN74AUC1G17DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC1G17DBVR is usually 5 days.
3.What payment methods are accepted for SN74AUC1G17DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC1G17DBVR transactions.
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4.How is shipping managed for SN74AUC1G17DBVR?
SN74AUC1G17DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC1G17DBVR 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 SN74AUC1G17DBVR?
For technical support, including SN74AUC1G17DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC1G17DBVR requirements.
6.How does Aetrix verify that SN74AUC1G17DBVR is sourced from the original manufacturer or authorized distributors?
All SN74AUC1G17DBVR 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 SN74AUC1G17DBVR meets industry standards.
7.What is the process for return or replacement of SN74AUC1G17DBVR?
All SN74AUC1G17DBVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC1G17DBVR, 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 SN74AUC1G17DBVR part is unused and in its original packaging.
Return procedure for SN74AUC1G17DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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