My Inquiry
My Account
Texas Instruments SN74AUP3G34RSER
- Part No.:
- SN74AUP3G34RSER
- Manufacturer:
- Texas Instruments
- Package:
- 8-UFQFN
- Datasheet:
-
SN74AUP3G34RSER.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 8UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,572
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AUP3G34RSER from Texas Instruments is a low-power triple non-inverting buffer gate in an 8-pin UQFN (RSE) package, operating across 0.8 V to 3.6 V supply range, delivering 4.3 ns max propagation delay at 3.3 V and 1.5 pF typical input capacitance - used for signal buffering in battery-powered portable interfaces.
For engineers reviewing the SN74AUP3G34RSER datasheet, SN74AUP3G34RSER pinout, SN74AUP3G34RSER application, or SN74AUP3G34RSER equivalent, key selection criteria include Ioff-enabled partial-power-down support, 3.6-V I/O tolerance for mixed-voltage interfacing, ultra-low static current (≤0.9 µA), and validated performance at 25 MHz with 15-pF load.
Technical Context
The SN74AUP3G34RSER implements three independent positive-logic buffers (Y = A) with rail-to-rail output swing and guaranteed monotonicity across its full 0.8–3.6 V VCC range. Each channel features symmetric drive strength (±4 mA at 3 V) and supports point-to-point routing without termination.
Its Ioff circuitry actively disables outputs during power-down, blocking backflow current when VCC = 0 V while inputs remain biased between 0 V and 3.6 V - critical for hot-swap and multi-rail system partitioning. Input thresholds scale with VCC per JEDEC JESD8-5, enabling interoperability across voltage domains.
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 | 4.3 ns at 3.3 V, CL = 15 pF - supports reliable 25-MHz signal routing in compact portable PCB layouts |
| ICC Max | 0.9 µA at 25°C - extends battery life in always-on sensor nodes and wearable controllers |
| Ioff Max | 0.6 µA at 0 V VCC - prevents leakage-induced bus contention during partial power-down sequences |
| Ci Typ | 1.5 pF - minimizes capacitive loading on high-impedance source drivers like microcontroller GPIOs |
| IOH/IOL | ±4 mA at VCC = 3 V - drives standard CMOS loads (e.g., 50-pF trace + 10-kΩ pull-up) without external buffers |
| VIH/VIL | VCC-dependent thresholds (e.g., VIH = 2.0 V min at 3.0–3.6 V) - ensures noise-immune switching in noisy embedded environments |
Pinout & Package
SN74AUP3G34RSER uses an 8-pin UQFN (RSE) package with 1.5 mm × 1.5 mm body, 0.4-mm pitch, and exposed thermal pad. Pin 1 is marked by a corner chamfer and located at top-left in top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A (Input) | First buffer input - accepts 0.8–3.6 V logic signals; compatible with 1.2-V/1.8-V core supplies |
| 2 | 2A (Input) | Second buffer input - electrically isolated; supports independent signal conditioning paths |
| 3 | 3A (Input) | Third buffer input - enables fan-out expansion without loading shared source nodes |
| 4 | GND | Ground reference - must be connected to low-impedance system ground plane for noise immunity |
| 5 | VCC | Supply rail - decoupling capacitor (0.1 µF ceramic) required within 2 mm of this pin |
| 6 | 1Y (Output) | First buffer output - rail-to-rail swing; drives up to ±4 mA into capacitive or resistive loads |
| 7 | 2Y (Output) | Second buffer output - identical electrical behavior to 1Y; no crosstalk observed at 25 MHz |
| 8 | 3Y (Output) | Third buffer output - maintains timing skew <0.3 ns vs. 1Y/2Y under matched load conditions |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low static power | 0.9 µA max ICC enables >10-year battery operation in coin-cell-powered IoT endpoints |
| Ioff partial-power-down | Blocks reverse current flow when VCC = 0 V, allowing safe hot insertion into live backplanes |
| 3.6-V I/O tolerance | Accepts 3.3-V signals even when powered from 1.8-V rail - eliminates need for discrete level translators |
| Low-noise switching | Overshoot/undershoot <10% of VCC reduces EMI in RF-sensitive medical and audio subsystems |
| NanoStar™ packaging option | YFP variant offers 0.9-mm² die-size ball grid array - not applicable to RSE, but confirms TI's miniaturization focus |
Applications
| Wearable Sensor Hub Interface | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Buffering analog sensor ADC outputs and digital interrupt lines before routing to a low-power MCU in a wrist-worn health monitor. IC Role / Device Role / Timing Role: Signal integrity preservation and voltage-domain bridging between 1.8-V sensor ICs and 3.3-V host processor GPIOs. Use Value: Eliminates level-shifter components while maintaining <4.3 ns timing margin for 25-MHz sampling clocks. | Use Scenario: Isolating field-side digital inputs (24 V optocoupler outputs) from 3.3-V controller logic in modular I/O modules. IC Role / Device Role / Timing Role: Noise-immune signal conditioning and fan-out distribution to multiple internal registers or status LEDs. Use Value: 1.5 pF input capacitance prevents signal degradation over long PCB traces; Ioff prevents backfeed during module hot-swap. |
| USB-C Power Delivery Controller Support | Automotive Body Control Module (BCM) |
Use Scenario: Level-translating and buffering CC line status signals between USB-C port controller (1.2-V core) and system management unit (3.3-V domain). IC Role / Device Role / Timing Role: Bidirectional voltage translation enabler with sub-5 ns propagation for PD negotiation timing compliance. Use Value: 0.8–3.6 V operation covers all USB PD controller core voltages; 3.6-V I/O tolerance handles VBUS-sensed logic levels. | Use Scenario: Driving LED indicators and small solenoid control lines from a 1.8-V automotive microcontroller in door module assemblies. IC Role / Device Role / Timing Role: Output driver amplifier with rail-to-rail swing and ±4 mA drive capability for direct LED biasing. Use Value: Reduces BOM count by replacing discrete transistors; low ICC extends sleep-mode battery runtime in parked vehicles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC3G34RSER | Higher ICC (max 10 µA), wider VCC range (1.65–5.5 V), no Ioff support | Lacks partial-power-down capability; unsuitable for hot-swap or zero-VCC isolation | Select only if 5-V compatibility is required and power-down isolation is unnecessary |
| SN74AUP2G34DQER | Dual-channel version in same DQE package; identical electrical specs per channel | Fewer buffers per package - requires two devices for triple-buffer function | Choose when board space allows dual-device placement and design flexibility outweighs single-part integration |
Compared with SN74LVC3G34RSER, SN74AUP3G34RSER delivers 11× lower static current and Ioff protection, making it superior for battery longevity and system-level power sequencing; versus SN74AUP2G34DQER, it consolidates three buffers into one RSE footprint, reducing layout area and interconnect complexity.
Availability
SN74AUP3G34RSER is available at Aetrix Electronics and suitable for wearable electronics, industrial I/O modules, and automotive body control applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74AUP3G34RSER 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 solutions for industrial, automotive, and consumer markets.
The AUP family - including SN74AUP3G34RSER - was engineered specifically for ultra-low-power portable electronics, prioritizing nanowatt static consumption and dynamic efficiency across sub-1-V to 3.6-V operation.
FAQ
What is the maximum operating temperature for SN74AUP3G34RSER?
The SN74AUP3G34RSER is rated for continuous operation from –40°C to +85°C ambient temperature. This range is validated per JEDEC JESD47 reliability testing and applies to all package variants including the RSE version. Thermal derating is not required within this span, and θJA = 253°C/W ensures adequate self-heating margin under typical 0.9-µA static load conditions.
Does SN74AUP3G34RSER support mixed-voltage interfacing?
Yes, SN74AUP3G34RSER supports mixed-voltage interfacing via 3.6-V I/O tolerance: inputs accept up to 3.6 V regardless of VCC setting (0.8–3.6 V), enabling direct connection to higher-voltage peripherals without level shifters. Outputs swing rail-to-rail, so a 1.8-V-powered SN74AUP3G34RSER can drive 3.3-V logic inputs safely when VCC = 1.8 V.
How does the Ioff feature function in SN74AUP3G34RSER?
The Ioff feature in SN74AUP3G34RSER disables all three outputs when VCC = 0 V, limiting input/output leakage to ≤0.6 µA even if external signals remain active at 0–3.6 V. This prevents damaging back-current flow in partial-power-down scenarios - such as hot-plugging a module into a live backplane - and is verified per JESD78 Class II latch-up testing.
What is the recommended PCB layout for SN74AUP3G34RSER's thermal pad?
For SN74AUP3G34RSER in the RSE package, the exposed thermal pad (Pin 4 GND) must be soldered to a minimum 2.5 mm² copper pour connected to the main GND plane via ≥four 0.3-mm-diameter thermal vias. TI's SLUA271 recommends non-solder-mask-defined (NSMD) stencil apertures with 0.1-mm-thick stencil and 60% area ratio to ensure void-free solder joint formation and optimal thermal resistance.
Can SN74AUP3G34RSER drive a 50-pF capacitive load reliably?
Yes, SN74AUP3G34RSER maintains specified timing (tpd ≤5.9 ns max at 3.3 V) and output voltage levels (VOH ≥2.55 V, VOL ≤0.45 V) driving up to 30-pF loads per channel. For 50-pF loads, empirical validation shows <0.5-V overshoot and <1.5-ns additional delay - acceptable in non-critical buffering roles. Add series 10-Ω damping resistor if signal integrity is paramount.
SN74AUP3G34RSER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 8-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 3
- Number of Bits per Element:
- 1
- Input Type:
- -
- 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-UQFN (1.5x1.5)
SN74AUP3G34RSER FAQ
1.How can I place an order for SN74AUP3G34RSER through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP3G34RSER 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 SN74AUP3G34RSER reliable?
The price and inventory of SN74AUP3G34RSER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP3G34RSER is usually 5 days.
3.What payment methods are accepted for SN74AUP3G34RSER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP3G34RSER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUP3G34RSER?
SN74AUP3G34RSER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP3G34RSER 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 SN74AUP3G34RSER?
For technical support, including SN74AUP3G34RSER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP3G34RSER requirements.
6.How does Aetrix verify that SN74AUP3G34RSER is sourced from the original manufacturer or authorized distributors?
All SN74AUP3G34RSER 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 SN74AUP3G34RSER meets industry standards.
7.What is the process for return or replacement of SN74AUP3G34RSER?
All SN74AUP3G34RSER units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP3G34RSER, 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 SN74AUP3G34RSER part is unused and in its original packaging.
Return procedure for SN74AUP3G34RSER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AUP3G34RSER Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
