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Texas Instruments SN74AUP3G17DCUR
- Part No.:
- SN74AUP3G17DCUR
- Manufacturer:
- Texas Instruments
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
SN74AUP3G17DCUR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,205
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Product details
Overview
SN74AUP3G17DCUR from Texas Instruments is a low-power triple Schmitt-trigger buffer IC in VSSOP-8 (DCU) package, operating from 0.8 V to 3.6 V supply, delivering 5.1 ns max propagation delay at 3.3 V, 1.5 pF typical input capacitance, and 0.9 µA max static current - used for noise-immune signal conditioning in battery-powered portable interfaces.
For engineers reviewing the SN74AUP3G17DCUR datasheet, SN74AUP3G17DCUR pinout, SN74AUP3G17DCUR application, or SN74AUP3G17DCUR equivalent, key selection criteria include Schmitt-trigger hysteresis (ΔVT = 0.79 V min at 3 V), Ioff support for partial-power-down mode, and 3.6-V I/O tolerance enabling mixed-voltage interfacing in space-constrained designs.
Technical Context
The SN74AUP3G17DCUR integrates three independent non-inverting Schmitt-trigger buffers with asymmetric input thresholds (VT+ = 2.29 V, VT– = 1.24 V at 3 V), enabling robust noise rejection on slow or noisy signals. Each buffer supports rail-to-rail output swing and operates across the full 0.8 V–3.6 V VCC range.
Its AUP-family architecture delivers ultra-low dynamic power (Cpd = 4.3 pF typ at 3.3 V) and static current (ICC = 0.9 µA max), with Ioff circuitry disabling outputs during power-down to prevent backflow current - critical for hot-swap and multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 3.6 V - enables direct interface with 1.2-V, 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters. |
| tpd Max | 5.1 ns at 3.3 V, CL = 15 pF - ensures timing-critical signal buffering in high-speed digital control paths. |
| Input Hysteresis ΔVT | 0.79 V min at 3 V - rejects up to ±395 mV of noise on input transitions, improving reliability in EMI-prone environments. |
| Ioff Current | 0.6 µA max at 0 V - isolates powered-down sections while maintaining safe I/O states in partial-power-down systems. |
| Input Capacitance Ci | 1.5 pF typical - minimizes loading on preceding drivers, preserving signal integrity in high-impedance sensor or oscillator interfaces. |
| IOH/IOL Drive | ±4 mA at 3 V - sufficient to drive standard CMOS loads (e.g., multiple 74AUP inputs) without external buffering. |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets industrial-grade robustness requirements for handheld and field-deployable equipment. |
Pinout & Package
VSSOP-8 (DCU) package: 2.25 mm × 3.35 mm, 0.65 mm pitch, 0.9 mm max height, exposed thermal pad optional, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A (Buffer 1 Input) | Non-inverting Schmitt-trigger input for first buffer; accepts 0–3.6 V logic levels with hysteresis. |
| 2 | 2A (Buffer 2 Input) | Non-inverting Schmitt-trigger input for second buffer; electrically isolated from other inputs. |
| 3 | 3A (Buffer 3 Input) | Non-inverting Schmitt-trigger input for third buffer; supports independent signal conditioning. |
| 4 | GND | Ground reference for all internal circuitry and I/O; must be low-impedance connection for noise immunity. |
| 5 | VCC | Primary power supply (0.8–3.6 V); decoupling capacitor (0.1 µF) required within 1 cm of this pin. |
| 6 | 1Y (Buffer 1 Output) | Non-inverting buffered output with rail-to-rail swing; drives capacitive loads up to 15 pF within spec. |
| 7 | 2Y (Buffer 2 Output) | Non-inverting buffered output; identical electrical characteristics to 1Y, fully independent. |
| 8 | 3Y (Buffer 3 Output) | Non-inverting buffered output; supports point-to-point routing without fanout limitations. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | VT+ = 2.29 V / VT– = 1.24 V at 3 V - eliminates chatter on slow-rise signals (e.g., mechanical switches, RC networks). |
| Ioff partial-power-down | Outputs disabled and high-impedance when VCC = 0 V - prevents back-current in multi-supply systems during sequencing. |
| 3.6-V I/O tolerance | Inputs accept up to 3.6 V regardless of VCC setting - enables safe interfacing with higher-voltage peripherals (e.g., 3.3-V sensors). |
| Ultra-low ICC | 0.9 µA max at 3.6 V - extends battery life in always-on IoT nodes and wearable devices. |
| NanoStar™-compatible | DCU package aligns with TI's NanoStar™ footprint family - supports drop-in replacement with YFP/DSBGA variants where board space permits. |
Applications
| Industrial Sensor Interface | Portable Device Power Sequencing |
|---|---|
Use Scenario: Conditioning analog switch or thermistor output before ADC sampling in a battery-powered data logger. IC Role / Device Role / Timing Role: Schmitt-trigger buffer cleans slow, noisy voltage transitions from mechanical contacts or RC-filtered sensors. Use Value: Eliminates false triggers caused by contact bounce or EMI, reducing firmware debounce overhead and improving measurement accuracy. |
Use Scenario: Enabling/disabling voltage rails in a multi-stage power management sequence for an ARM Cortex-M4-based edge node. IC Role / Device Role / Timing Role: Isolates enable signals between independently controlled power domains during cold-start and sleep transitions. Use Value: Prevents backfeed current via Ioff when downstream rails power up before upstream supplies, ensuring reliable sequencing. |
| USB-C Port Detection Logic | Low-Power Display Backlight Control |
Use Scenario: Interfacing CC-line detection logic (1.2-V comparator output) to a 3.3-V USB PD controller in a compact dock. IC Role / Device Role / Timing Role: Level-translating and noise-hardened buffer for USB-C configuration channel signaling. Use Value: 3.6-V tolerant inputs accept 3.3-V controller logic while operating from 1.2-V supply - eliminating discrete level shifters. |
Use Scenario: Driving LED driver enable inputs from a low-power microcontroller GPIO in a smartwatch display subsystem. IC Role / Device Role / Timing Role: Signal conditioner for PWM dimming control lines subject to PCB trace noise and crosstalk. Use Value: Schmitt hysteresis suppresses false PWM edge detection, preventing flicker or brightness instability under RF interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC3G17DCUR | Higher ICC (10 µA typ), no Ioff, 1.65–5.5 V VCC range, lower hysteresis (ΔVT ≈ 0.3 V at 3.3 V) | Not suitable for partial-power-down systems; requires ≥1.65 V supply - incompatible with sub-1.2-V MCU I/O. | Select SN74LVC3G17DCUR only if higher drive strength (±24 mA) and wider VCC range outweigh need for ultra-low power and Ioff. |
| SN74AUP2G17DCUR | Dual-channel version (2 buffers), identical electrical specs, same DCU package footprint and pinout compatibility for pins 1–4, 6–8 | Reduces channel count by one - appropriate when only two Schmitt buffers are needed, freeing PCB area and BOM line items. | Choose SN74AUP2G17DCUR to simplify layout and reduce component count where third buffer is unused in final design. |
Compared with SN74LVC3G17DCUR, SN74AUP3G17DCUR delivers 11× lower static current and Ioff protection but trades off maximum drive strength; versus SN74AUP2G17DCUR, it adds a third independent buffer without increasing footprint - optimizing channel density for compact multi-signal conditioning.
Availability
SN74AUP3G17DCUR is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device power sequencing, and USB-C port detection requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74AUP3G17DCUR 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 connectivity technologies, with over 50 years of innovation in low-power logic and precision analog solutions.
The SN74AUP3G17DCUR belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for battery-powered portable applications demanding nanowatt-level static consumption and robust signal integrity across wide voltage ranges.
FAQ
What is the maximum propagation delay of the SN74AUP3G17DCUR at 3.3 V?
The SN74AUP3G17DCUR has a maximum propagation delay (tpd) of 5.1 ns at VCC = 3.3 V with CL = 15 pF, measured from input transition (1.65 V) to output transition (1.65 V). This value is guaranteed across –40°C to 85°C and reflects worst-case performance under load, making it suitable for timing-critical signal conditioning in portable systems.
Does the SN74AUP3G17DCUR support partial-power-down operation?
Yes, the SN74AUP3G17DCUR features Ioff circuitry that disables all outputs when VCC = 0 V, limiting Ioff current to 0.6 µA max. This prevents damaging back-current flow through the device when it is unpowered but connected to active signal lines - essential for reliable power sequencing in multi-rail embedded systems.
What is the input hysteresis (ΔVT) of the SN74AUP3G17DCUR at 3.0 V supply?
At VCC = 3.0 V, the SN74AUP3G17DCUR exhibits a minimum input hysteresis (ΔVT = VT+ – VT–) of 0.79 V, with VT+ = 1.88 V and VT– = 0.88 V. This wide hysteresis window rejects noise spikes up to ±395 mV, making the SN74AUP3G17DCUR ideal for debouncing mechanical switches or cleaning RC-filtered sensor outputs.
Can the SN74AUP3G17DCUR interface with 5-V logic signals?
No - the SN74AUP3G17DCUR inputs are rated for a maximum of 3.6 V, and absolute maximum ratings specify VI ≤ 4.6 V only under transient conditions with current limiting. Direct connection to 5-V logic violates the recommended operating conditions and risks latch-up or accelerated degradation; a level-shifter or voltage divider is required for 5-V interface.
Is the SN74AUP3G17DCUR pin-compatible with other AUP-family triple buffers in DCU package?
Yes - the SN74AUP3G17DCUR shares identical pinout, footprint, and thermal pad configuration with SN74AUP3G04DCUR (inverting) and SN74AUP3G07DCUR (open-drain), enabling layout reuse across functional variants. All use VSSOP-8 (DCU) with 0.65 mm pitch and pin 1 index in Q3 quadrant per tape-and-reel specification.
SN74AUP3G17DCUR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 3
- Number of Bits per Element:
- 1
- Input Type:
- Schmitt Trigger
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 0.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
SN74AUP3G17DCUR FAQ
1.How can I place an order for SN74AUP3G17DCUR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP3G17DCUR 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 SN74AUP3G17DCUR reliable?
The price and inventory of SN74AUP3G17DCUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP3G17DCUR is usually 5 days.
3.What payment methods are accepted for SN74AUP3G17DCUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP3G17DCUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUP3G17DCUR?
SN74AUP3G17DCUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP3G17DCUR 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 SN74AUP3G17DCUR?
For technical support, including SN74AUP3G17DCUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP3G17DCUR requirements.
6.How does Aetrix verify that SN74AUP3G17DCUR is sourced from the original manufacturer or authorized distributors?
All SN74AUP3G17DCUR 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 SN74AUP3G17DCUR meets industry standards.
7.What is the process for return or replacement of SN74AUP3G17DCUR?
All SN74AUP3G17DCUR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP3G17DCUR, 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 SN74AUP3G17DCUR part is unused and in its original packaging.
Return procedure for SN74AUP3G17DCUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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