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Texas Instruments SN74AUC1G17YEAR
- Part No.:
- SN74AUC1G17YEAR
- Manufacturer:
- Texas Instruments
- Package:
- 5-XFBGA, DSBGA
- Datasheet:
-
SN74AUC1G17YEAR.pdf
- Description:
- IC BUFFER NON-INVERT 2.7V 5DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,145
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Product details
Overview
SN74AUC1G17YEAR from Texas Instruments is a single Schmitt-trigger buffer IC optimized for 1.65–1.95 V operation, featuring sub-1-V capability (down to 0.8 V), 2.4 ns max propagation delay at 1.8 V, ±8-mA output drive, and Ioff partial-power-down protection. It serves as a noise-immune signal conditioner in low-voltage digital interfaces of portable audio and embedded computing systems.
For engineers reviewing the SN74AUC1G17YEAR datasheet, SN74AUC1G17YEAR pinout, SN74AUC1G17YEAR application, or SN74AUC1G17YEAR equivalent, key selection criteria include its hysteresis thresholds (VT+ = 1.16 V / VT– = 0.62 V at 1.65 V), 3.6-V I/O tolerance for mixed-mode interfacing, latch-up immunity (>100 mA), and NanoFree™ package compatibility with space-constrained PCB layouts.
Technical Context
The SN74AUC1G17YEAR implements a noninverting Schmitt-trigger buffer (Y = A) with asymmetric input thresholds-VT+ and VT– differ by up to 0.62 V at 1.65 V-to reject noise on slow-rising or noisy digital signals. Its Ioff circuitry actively disables outputs during power-down, blocking back-drive current and enabling safe hot-insertion in partial-power-down systems.
Designed for sub-1-V to 2.7-V operation, it supports 1.8-V core logic while tolerating 3.6-V inputs, making it suitable for voltage-level translation between legacy and ultra-low-power domains. The device exhibits 10 µA max ICC and 3 pF typical input capacitance, minimizing dynamic loading in high-speed, low-power signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - enables operation in battery-powered sub-1-V systems and compatibility with 1.8-V supply rails |
| tpd (max) | 2.4 ns at 1.8 V, CL = 30 pF - ensures timing integrity in >400-MHz data paths with minimal added latency |
| 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 to 0.62 V (1.65–2.3 V) - provides robust noise margin against EMI and ground bounce in noisy environments |
| Ioff Current | ±10 µA max at 2.7 V - prevents damaging back-current flow when VCC = 0, supporting hot-swap and power-gating |
| ESD Rating | 2000-V HBM - meets industrial handling requirements without additional board-level protection |
| ICC (max) | 10 µA - reduces quiescent power in always-on signal conditioning stages |
Pinout & Package
SN74AUC1G17YEAR is available in five NanoFree™ packages: SOT-23 (DBV), SC70 (DCK), SOT-5X3 (DRL), and DSBGA (YZP), all 5-pin configurations. Package dimensions range from 1.60 mm × 1.20 mm (DRL) to 2.90 mm × 1.60 mm (DBV), with height ≤1.45 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Input | Single logic input with Schmitt-trigger thresholds; must be tied to VCC or GND if unused to prevent floating |
| Y | Output | Noninverting buffered output with ±8-mA drive; supports 3.6-V tolerant signaling regardless of VCC |
| VCC | Supply | Positive supply rail (0.8–2.7 V); powers internal logic and output stage |
| GND | Ground | Reference return path for all I/O and internal circuitry; requires low-impedance connection |
| NC / DNU | No-connect / Do-not-use | Pin 1 (DBV/DCK/DRL) or A1 (YZP) has no internal connection; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger input | Provides 0.37–0.77 V hysteresis to eliminate chatter on slow or noisy signals, eliminating need for external RC filtering |
| Ioff partial-power-down | Disables outputs when VCC = 0, preventing back-drive damage during system power sequencing or hot-plug events |
| 3.6-V I/O tolerance | Allows direct interface to 3.3-V or 2.5-V logic without level shifters, simplifying mixed-voltage board design |
| NanoFree™ packaging | Uses die-as-package construction (e.g., DSBGA YZP: 1.75 mm × 1.25 mm) to minimize footprint and thermal resistance |
| Sub-1-V operability | Functions down to 0.8 V VCC, supporting next-generation ultra-low-power SoC auxiliary rails and energy-harvesting systems |
Applications
| Portable Audio Signal Conditioning | Embedded PC Power Sequencing |
|---|---|
Use Scenario: Clean up noisy button press or sensor signals in MP3 players and wireless headsets before MCU GPIO sampling. IC Role / Device Role / Timing Role: Schmitt-trigger buffer providing noise-immune digital input conditioning with no external components. Use Value: Eliminates false triggers caused by mechanical switch bounce or RF coupling, improving UI reliability without firmware debouncing overhead. |
Use Scenario: Enable/disable voltage rails or reset lines during boot-up and sleep transitions in tablet and PDA power management. IC Role / Device Role / Timing Role: Level-translating buffer with Ioff, isolating powered-down domains from active control logic. Use Value: Prevents back-current injection into inactive power domains, ensuring deterministic power-state transitions and meeting JEDEC JESD78 latch-up requirements. |
| SSD Interface Glue Logic | HDTV HDMI Hot-Plug Detection |
Use Scenario: Buffer and condition presence-detect or interrupt signals between NAND controller and SSD host interface. IC Role / Device Role / Timing Role: Low-latency, low-power signal repeater with 2.4 ns tpd, operating from 1.8-V supply. Use Value: Maintains signal integrity across split-plane PCB sections while consuming <10 µA static current, extending SSD standby life. |
Use Scenario: Condition HPD (Hot-Plug Detect) signals between HDMI source and sink in LCD/LED TVs and AV receivers. IC Role / Device Role / Timing Role: 3.6-V tolerant Schmitt buffer translating 5-V HPD pulses to 1.8-V receiver inputs. Use Value: Enables reliable hot-plug event detection without external resistors or clamps, reducing BOM count and layout area. |
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 tpd (3.5 ns @ 3.3 V), no sub-1-V operation | Better suited for 3.3-V systems; lacks 0.8-V capability and tighter 1.8-V timing | Select when interfacing legacy 3.3-V logic and sub-1-V operation is unnecessary |
| NC7SZ17P5X | Smaller SC70-5 footprint (2.0 × 1.25 mm), same 1.65–5.5 V range, 3.2 ns tpd @ 3.3 V | Higher drive (±24 mA) but lower ESD rating (1500-V HBM); no Ioff support | Choose for space-constrained 3.3-V designs where back-drive protection is not required |
Compared with SN74LVC1G17DBVR and NC7SZ17P5X, the SN74AUC1G17YEAR uniquely delivers sub-1-V operation, 2.4 ns speed at 1.8 V, and Ioff-making it the only option for ultra-low-voltage, power-gated, or mixed-rail signal conditioning where timing, noise immunity, and power-domain isolation are jointly critical.
Availability
SN74AUC1G17YEAR is available at Aetrix Electronics and suitable for portable audio, embedded PC, SSD, and HDTV applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74AUC1G17YEAR 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 high-reliability, low-power IC design.
The SN74AUC1G17YEAR belongs to TI's AUC Sub-1-V Little Logic family, engineered specifically for ultra-low-voltage signal integrity in battery-powered and energy-efficient consumer and computing devices.
FAQ
What is the minimum supply voltage for reliable operation of the SN74AUC1G17YEAR?
The SN74AUC1G17YEAR is fully specified from 0.8 V to 2.7 V VCC, with guaranteed functionality-including Schmitt thresholds and output drive-at 0.8 V. At this voltage, tpd increases to 5.7 ns (CL = 15 pF), and output drive reduces to ±0.7 mA, but logic behavior remains valid per datasheet Section 6.3.
Does the SN74AUC1G17YEAR support hot-swap or partial-power-down use cases?
Yes. The SN74AUC1G17YEAR includes Ioff circuitry that disables outputs when VCC = 0, limiting Ioff to ±10 µA (Section 6.5). This prevents back-current flow from live I/O lines into a powered-down supply domain, satisfying JEDEC JESD78 Class II latch-up requirements for hot-swap systems.
Can the SN74AUC1G17YEAR interface directly with 3.3-V logic inputs?
Yes. The SN74AUC1G17YEAR features 3.6-V I/O tolerance (Section 6.1), meaning its inputs accept voltages up to 3.6 V regardless of VCC. When VCC = 1.8 V, it safely buffers 3.3-V signals without external level shifters-ideal for bridging 1.8-V SoCs to legacy 3.3-V peripherals.
What is the hysteresis voltage (ΔVT) of the SN74AUC1G17YEAR at 1.8-V supply?
At VCC = 1.8 V, the SN74AUC1G17YEAR exhibits VT+ = 1.16 V and VT– = 0.62 V (Section 6.5), yielding a hysteresis of 0.54 V. This wide window rejects noise spikes up to ±270 mV around the switching threshold, significantly improving immunity in electrically noisy portable environments.
Which package options are available for the SN74AUC1G17YEAR, and what are their key mechanical differences?
The SN74AUC1G17YEAR is offered in SOT-23 (DBV, 2.90 × 1.60 mm), SC70 (DCK, 2.00 × 1.25 mm), SOT-5X3 (DRL, 1.60 × 1.20 mm), and DSBGA (YZP, 1.75 × 1.25 mm). DRL and YZP provide the smallest footprints and lowest thermal resistance (RθJA = 142 °C/W and 132 °C/W respectively), while DBV offers widest distributor availability and easiest hand-soldering.
SN74AUC1G17YEAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- 5-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 5-DSBGA (1.4x0.9)
SN74AUC1G17YEAR FAQ
1.How can I place an order for SN74AUC1G17YEAR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC1G17YEAR 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 SN74AUC1G17YEAR reliable?
The price and inventory of SN74AUC1G17YEAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC1G17YEAR is usually 5 days.
3.What payment methods are accepted for SN74AUC1G17YEAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC1G17YEAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUC1G17YEAR?
SN74AUC1G17YEAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC1G17YEAR 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 SN74AUC1G17YEAR?
For technical support, including SN74AUC1G17YEAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC1G17YEAR requirements.
6.How does Aetrix verify that SN74AUC1G17YEAR is sourced from the original manufacturer or authorized distributors?
All SN74AUC1G17YEAR 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 SN74AUC1G17YEAR meets industry standards.
7.What is the process for return or replacement of SN74AUC1G17YEAR?
All SN74AUC1G17YEAR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC1G17YEAR, 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 SN74AUC1G17YEAR part is unused and in its original packaging.
Return procedure for SN74AUC1G17YEAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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