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Texas Instruments SN74AUC1G17DBVRG4
- Part No.:
- SN74AUC1G17DBVRG4
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
SN74AUC1G17DBVRG4.pdf
- Description:
- IC BUF NON-INVERT 2.7V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,921
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Product details
Overview
SN74AUC1G17DBVRG4 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 SN74AUC1G17DBVRG4 datasheet, SN74AUC1G17DBVRG4 pinout, SN74AUC1G17DBVRG4 application, or SN74AUC1G17DBVRG4 equivalent, key selection criteria include 1.8-V timing performance, 3.6-V I/O tolerance for mixed-mode systems, Schmitt-trigger noise immunity, NanoFree™ SOT-23 package footprint, and Ioff-enabled back-drive protection during power sequencing.
Technical Context
The SN74AUC1G17DBVRG4 implements a noninverting Schmitt-trigger buffer with asymmetric input thresholds (VT+ = 1.16 V, VT– = 0.62 V at VCC = 1.65 V), enabling robust noise rejection on slow or noisy digital signals. Its architecture supports rail-to-rail input operation from 0.8 V to 2.7 V and delivers full 1.8-V logic swing at up to 9-mA sink/source load.
Integrated Ioff circuitry disables outputs when VCC = 0 V, preventing current backflow into powered-down sections of mixed-voltage systems. The device meets JESD 78 Class II latch-up immunity (>100 mA) and exceeds JESD 22 ESD ratings: 2000-V HBM, 200-V MM, and 1000-V CDM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - Enables operation across ultra-low-voltage (sub-1-V) and standard 1.8-V domains |
| tpd (max) | 2.4 ns at 1.8 V, CL = 30 pF - Supports high-speed signal conditioning in portable audio clock/data paths |
| 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 >300 mV noise margin for reliable edge detection on slow-rising signals |
| Ioff Current | ±10 µA max - Ensures safe isolation during partial power-down in battery-backed or hot-swap subsystems |
| ICC (max) | 10 µA - Enables use in always-on, low-quiescent-current monitoring circuits |
| IO Tolerance | 3.6-V I/O - Allows direct interfacing with 3.3-V or 2.5-V logic without level translators |
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 | Single Schmitt-trigger logic input accepting 0.8–2.7-V signals; threshold hysteresis enables noise immunity |
| 3 (GND) | Ground reference | Primary return path for supply and signal currents; requires low-inductance connection to system ground plane |
| 4 (Y) | Output | Noninverting buffered output with ±8-mA drive; rail-to-rail swing referenced to VCC and GND |
| 5 (VCC) | Positive supply | Core power input (0.8–2.7 V); Ioff activation occurs when VCC = 0 V, disabling Y and isolating A |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger input | VT+ = 1.16 V / VT– = 0.62 V at 1.65 V - Eliminates chatter on slow or noisy control lines (e.g., mechanical switch debouncing) |
| NanoFree™ packaging | Die-as-package construction in SOT-23 - Reduces board space by 40% vs. standard SOIC, eliminates bond wires for improved RF immunity |
| Ioff partial-power-down | Active at VCC = 0 V - Blocks current flow between A and Y pins, protecting powered sections during sleep or fault conditions |
| 3.6-V I/O tolerance | VI/VO rated to 3.6 V - Enables direct interface with higher-voltage peripherals (e.g., 3.3-V sensors or displays) without external translators |
| Sub-1-V operability | Functional down to 0.8 V VCC - Supports energy harvesting or ultra-low-power battery systems where supply drops below 1 V |
Applications
| Portable Audio Signal Conditioning | Low-Voltage Power Sequencing Control |
|---|---|
|
Use Scenario: Buffering and cleaning analog switch control signals in MP3 players and wireless headsets subject to PCB trace noise and voltage droop. IC Role / Device Role / Timing Role: Schmitt-trigger buffer providing hysteresis-based noise rejection and level translation between 1.2-V codec and 1.8-V SoC GPIO. Use Value: Prevents false triggering of audio path switches by rejecting <300 mV of coupled noise, ensuring glitch-free playback start/stop. |
Use Scenario: Enabling/disabling DC-DC converter enable lines during multi-rail power-up sequences in SSDs and embedded PCs. IC Role / Device Role / Timing Role: Noninverting buffer with Ioff, isolating downstream 1.8-V enable logic from upstream 3.3-V supervisor during brownout events. Use Value: Eliminates back-drive current into unpowered rails, preventing latch-up and enabling compliant IEC 61000-4-2 ESD robustness in power management subsystems. |
| High-Speed Data Line Integrity | Industrial Sensor Interface Conditioning |
|
Use Scenario: Driving short (<5 cm), high-capacitance (≤30 pF) data lines between FPGA and flash memory in tablets and enterprise PDAs. IC Role / Device Role / Timing Role: Low-tpd (2.4 ns) buffer restoring signal rise/fall times degraded by trace capacitance and fanout. Use Value: Maintains timing margins for 100+ MHz data transfers by reducing edge degradation, avoiding setup/hold violations at receiver inputs. |
Use Scenario: Interfacing slow-rising thermistor or potentiometer wiper signals to 1.8-V ADC inputs in HVAC controllers and industrial HMIs. IC Role / Device Role / Timing Role: Schmitt-trigger input converting analog-derived slow edges into clean digital transitions for microcontroller GPIO sampling. Use Value: Removes ambiguity in threshold crossing caused by RC filtering or EMI, ensuring deterministic ADC trigger timing and eliminating missed samples. |
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 (max 10 µA same); lower drive (±24 mA at 3.3 V); no sub-1-V operation | Better suited for 3.3-V/5-V legacy systems; lacks 0.8-V operability and NanoFree™ size advantage | Select when interfacing with 5-V logic or requiring higher drive at 3.3 V; avoid if sub-1-V operation or minimal footprint is required. |
| 74AUP1G17GW,125 | NXP part; VCC = 0.8–3.6 V; tpd = 6.4 ns @ 1.2 V; lower ICC (max 0.9 µA); same 5-pin SC70 package | Optimized for ultra-low power over speed; slower propagation limits use in >25-MHz data paths | Prefer for battery-critical applications where quiescent current <1 µA outweighs timing requirements; not suitable for 1.8-V high-speed buffering. |
Compared with SN74LVC1G17DBVR and 74AUP1G17GW,125, the SN74AUC1G17DBVRG4 uniquely balances sub-1-V operation, 2.4-ns speed at 1.8 V, and NanoFree™ SOT-23 size-making it optimal for space-constrained, mixed-voltage portable electronics where both noise immunity and timing integrity are critical.
Availability
SN74AUC1G17DBVRG4 is available at Aetrix Electronics and suitable for portable audio signal conditioning, low-voltage power sequencing control, and high-speed data line integrity applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production lots.
Supply support for SN74AUC1G17DBVRG4 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 expertise in low-voltage, high-speed logic families.
The SN74AUC1G17DBVRG4 belongs to TI's AUC Sub-1-V Little Logic family, engineered specifically for ultra-low-voltage portable and battery-powered systems requiring robust noise immunity, minimal footprint, and seamless mixed-voltage interoperability.
FAQ
What is the minimum operating voltage for the SN74AUC1G17DBVRG4?
The SN74AUC1G17DBVRG4 operates down to 0.8 V VCC, making it suitable for sub-1-V energy-harvesting and ultra-low-power battery systems. At 0.8 V, it maintains functional Schmitt-trigger behavior with specified hysteresis and output drive, though propagation delay increases to 5.7 ns (CL = 15 pF). This capability is confirmed in Section 6.3 of the official TI datasheet SCES376O.
Does the SN74AUC1G17DBVRG4 support 3.3-V input signals while powered at 1.8 V?
Yes, the SN74AUC1G17DBVRG4 supports 3.6-V tolerant inputs and outputs, so it accepts 3.3-V logic signals even when VCC = 1.8 V. This allows direct interfacing with higher-voltage peripherals without level shifters. The absolute maximum input voltage is 3.6 V, and the device maintains full functionality and ESD robustness under this condition per Section 6.1 and 6.2 of the datasheet.
How does the Ioff feature protect circuits using the SN74AUC1G17DBVRG4?
The Ioff feature in the SN74AUC1G17DBVRG4 disables outputs when VCC = 0 V, limiting Ioff current to ±10 µA max. This prevents damaging current backflow from live inputs (e.g., 3.3-V signals) into unpowered sections of a system. It is essential for hot-swap, partial-power-down, and battery-backup architectures where rail sequencing matters - verified in Section 3 and 8.2 of the TI datasheet.
What is the hysteresis voltage (ΔVT) of the SN74AUC1G17DBVRG4 at 1.8 V supply?
At VCC = 1.8 V, the SN74AUC1G17DBVRG4 exhibits a typical hysteresis voltage (ΔVT = VT+ – VT–) of 0.55 V, with a minimum of 0.48 V and maximum of 0.77 V (Section 6.5, Electrical Characteristics). This provides strong noise immunity for signals with slow edges or high EMI susceptibility, such as mechanical switch inputs or sensor outputs in portable devices.
Is the SN74AUC1G17DBVRG4 pin-compatible with other 5-pin logic buffers in SOT-23?
The SN74AUC1G17DBVRG4 uses standard SOT-23 pinout (Pin 1: NC, Pin 2: A, Pin 3: GND, Pin 4: Y, Pin 5: VCC), matching TI's SN74LVC1G17DBVR and compatible with industry-standard 5-pin SOT-23 footprints. However, pin compatibility does not guarantee functional or timing equivalence - always verify VCC range, drive strength, and hysteresis requirements against the target application.
SN74AUC1G17DBVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
SN74AUC1G17DBVRG4 FAQ
1.How can I place an order for SN74AUC1G17DBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC1G17DBVRG4 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 SN74AUC1G17DBVRG4 reliable?
The price and inventory of SN74AUC1G17DBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC1G17DBVRG4 is usually 5 days.
3.What payment methods are accepted for SN74AUC1G17DBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC1G17DBVRG4 transactions.
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4.How is shipping managed for SN74AUC1G17DBVRG4?
SN74AUC1G17DBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC1G17DBVRG4 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 SN74AUC1G17DBVRG4?
For technical support, including SN74AUC1G17DBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC1G17DBVRG4 requirements.
6.How does Aetrix verify that SN74AUC1G17DBVRG4 is sourced from the original manufacturer or authorized distributors?
All SN74AUC1G17DBVRG4 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 SN74AUC1G17DBVRG4 meets industry standards.
7.What is the process for return or replacement of SN74AUC1G17DBVRG4?
All SN74AUC1G17DBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC1G17DBVRG4, 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 SN74AUC1G17DBVRG4 part is unused and in its original packaging.
Return procedure for SN74AUC1G17DBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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