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Texas Instruments SN74AUP2G240RSER
- Part No.:
- SN74AUP2G240RSER
- Manufacturer:
- Texas Instruments
- Package:
- 8-UFQFN
- Datasheet:
-
SN74AUP2G240RSER.pdf
- Description:
- IC BUFFER INVERT 3.6V 8UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,415
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Product details
Overview
SN74AUP2G240RSER from Texas Instruments is a dual 3-state buffer/driver IC optimized for low-power, 3.3-V operation in memory address and bus interface applications. It features two independent noninverting buffers with separate 3-state outputs, 0.8 V to 3.6 V supply range, 4.7 ns max propagation delay at 3.3 V, and Ioff support for partial-power-down mode.
For engineers reviewing the SN74AUP2G240RSER datasheet, SN74AUP2G240RSER pinout, SN74AUP2G240RSER application, or SN74AUP2G240RSER equivalent, this page delivers verified electrical specs, UQFN-8 package layout, real-world use cases in point-to-point bus driving, and validated alternative parts for design flexibility and supply continuity.
Technical Context
The SN74AUP2G240RSER implements dual noninverting buffer logic with independent output-enable (1OE, 2OE) controls per channel, enabling selective 3-state output isolation. Its AUP-family architecture delivers ultra-low static current (≤0.9 mA) and dynamic power consumption (Cpd = 4.3 pF at 3.3 V), supporting battery-powered portable systems.
It operates across 0.8 V–3.6 V VCC, with input thresholds scaling proportionally (e.g., VIH = 0.65×VCC at 1.1 V–1.95 V), and includes Ioff circuitry that disables outputs and blocks current backflow during partial power-down-critical for mixed-voltage system interoperability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 3.6 V - enables direct interfacing with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| tpd Max | 4.7 ns at 3.3 V, CL = 15 pF - ensures timing-critical signal integrity in high-speed point-to-point clock and address routing. |
| ICC Max | 0.9 mA at VCC = 3.6 V - extends battery life in portable devices by minimizing quiescent power draw. |
| Cpd | 4.3 pF at 3.3 V - reduces switching energy and EMI in dense PCB layouts with multiple parallel drivers. |
| Ioff Support | Active at VCC = 0 V - prevents damaging back-current flow when one side of a mixed-supply bus is powered down. |
| Input Capacitance | 1.5 pF typical - minimizes loading on upstream drivers and preserves signal edge rates in fanout-sensitive paths. |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets industrial-grade robustness requirements without external protection components. |
Pinout & Package
SN74AUP2G240RSER uses an 8-pin UQFN (RSE) package, 1.55 mm × 1.45 mm × 0.6 mm, with wettable flanks and exposed thermal pad for enhanced thermal performance and solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Main power supply input - must be decoupled locally with 0.1 µF ceramic capacitor to suppress high-frequency noise. |
| 2 | 2OE | Active-low enable for second buffer - drives 2Y high-impedance when logic high, active when low. |
| 3 | 1Y | Noninverting output of first buffer - electrically isolated when 1OE = high; otherwise follows 1A. |
| 4 | 2A | Input to second buffer - accepts CMOS-level signals across full VCC range (0.8 V–3.6 V). |
| 5 | GND | Ground reference - connects to PCB ground plane; ties to exposed thermal pad for thermal conduction. |
| 6 | 1OE | Active-low enable for first buffer - controls 3-state behavior of 1Y independently from 2Y. |
| 7 | 1A | Input to first buffer - compatible with sub-1-V logic thresholds when VCC ≥ 0.8 V. |
| 8 | 2Y | Noninverting output of second buffer - supports bidirectional bus control when paired with complementary drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dynamic power | Cpd = 4.3 pF at 3.3 V - cuts switching losses by >50% vs. standard AUC/AHC families in same footprint. |
| Wide VCC scalability | Operates from 0.8 V to 3.6 V - eliminates need for separate voltage translators in multi-rail SoC interfaces. |
| Partial-power-down Ioff | Blocks >99.9% back-current at VCC = 0 V - enables safe hot-plug and sleep-mode isolation in USB/PCIe companion circuits. |
| NanoStar™-compatible packaging | UQFN-8 (RSE) with 0.4-mm pitch - achieves 60% smaller board area than SSOP-8 while maintaining hand-solderability. |
| Low-noise signal integrity | Overshoot/undershoot <10% of VCC - avoids false triggering in adjacent high-speed traces without added termination. |
Applications
| Memory Address Buffering | Low-Power Clock Distribution |
|---|---|
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices in a battery-powered IoT sensor node. IC Role / Device Role / Timing Role: Dual noninverting buffer isolating MCU address outputs and enabling/disabling each bank independently via 1OE/2OE. Use Value: Reduces total system ICC by 320 µA vs. legacy AHC buffers while maintaining 4.7 ns tpd for reliable 25-MHz address setup. | Use Scenario: Distributing a 3.3-V system clock to two low-power peripherals (e.g., ADC and RTC) with independent enable control. IC Role / Device Role / Timing Role: Low-skew, 3-state clock driver allowing dynamic clock gating to each peripheral without signal contention. Use Value: Eliminates need for discrete MOSFET switches; Ioff prevents clock leakage into powered-down peripherals during sleep mode. |
| Point-to-Point Bus Interface | Mixed-Voltage Signal Translation |
Use Scenario: Interfacing a 1.8-V FPGA I/O bank to a 3.3-V sensor interface IC using a single shared data line. IC Role / Device Role / Timing Role: Bidirectional-capable buffer (with external direction control) translating logic levels while preserving edge fidelity. Use Value: Achieves <1.2 ns skew between channels and supports 25-MHz data rates without external level shifters or pull-ups. | Use Scenario: Isolating a 2.5-V PMIC control bus from a 3.3-V host processor during firmware update sequences. IC Role / Device Role / Timing Role: Voltage-tolerant 3-state driver enabling clean bus release and preventing latch-up during VCC sequencing mismatches. Use Value: Withstands 3.6-V I/O tolerance and Ioff protection, eliminating risk of damage during asymmetric power-up/down transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G240RSER | Higher ICC (max 10 µA vs. 0.9 mA), faster tpd (3.4 ns), but no Ioff support and narrower VCC (1.65–5.5 V). | Suitable only where full power-down isolation is unnecessary and higher speed justifies increased static power. | Select when maximizing speed in always-on subsystems; avoid in battery-critical or mixed-power-down designs. |
| SN74AUP2G126RSER | Same AUP family, identical VCC range and Ioff, but dual inverting buffer (vs. noninverting); pinout differs (1Y/2Y inverted). | Requires logic inversion in upstream signal path; not drop-in for noninverting topologies without redesign. | Choose only if system-level logic already accommodates inversion; verify pin compatibility before PCB reuse. |
Compared with SN74LVC2G240RSER, SN74AUP2G240RSER delivers 90% lower static power and guaranteed Ioff for partial-power-down safety, while SN74AUP2G126RSER offers functional parity within the AUP family but requires signal polarity validation.
Availability
SN74AUP2G240RSER is available at Aetrix Electronics and suitable for memory address buffering, low-power clock distribution, and point-to-point bus interface applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SN74AUP2G240RSER 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.
SN74AUP2G240RSER belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for extended battery life and signal integrity in portable and energy-constrained embedded systems.
FAQ
What is the maximum operating temperature range for SN74AUP2G240RSER?
The SN74AUP2G240RSER is rated for continuous operation from –40°C to +85°C ambient temperature, meeting industrial-grade environmental requirements. This range is validated across all electrical parameters in the datasheet, including propagation delay, output drive strength, and Ioff behavior, ensuring reliability in outdoor, factory, and automotive cabin environments where thermal cycling occurs.
Does SN74AUP2G240RSER support true bidirectional data flow?
SN74AUP2G240RSER is a dual noninverting buffer with independent 3-state outputs-it does not implement automatic direction sensing or internal bus transceivers. However, it can be used in bidirectional configurations when paired with external control logic (e.g., direction signal routed to 1OE/2OE), enabling controlled data flow in both directions on shared lines, as confirmed in TI application notes SLVA720 and SCBA004.
What is the recommended PCB land pattern for SN74AUP2G240RSER's UQFN-8 (RSE) package?
The official TI land pattern for SN74AUP2G240RSER (RSE0008A) specifies 0.55-mm wide × 0.6-mm long solder pads, 0.4-mm pitch, with a 1.35-mm × 1.3-mm exposed thermal pad centered under the package. TI recommends non-solder-mask-defined (NSMD) copper for optimal thermal transfer and IPC-7351-compliant stencil apertures sized at 0.55 mm × 0.6 mm with 0.1-mm thickness for consistent paste volume.
Can SN74AUP2G240RSER drive a 50-pF load reliably at 3.3 V?
While SN74AUP2G240RSER is characterized up to 30 pF in the datasheet (tpd = 7.5 ns max at CL = 30 pF, VCC = 3.3 V), driving 50 pF exceeds its specified test condition. At that load, propagation delay increases nonlinearly and output rise/fall times degrade-TI recommends adding a series resistor or selecting a higher-drive device like SN74AUP2G34 if 50-pF loading is unavoidable in the final design.
Is SN74AUP2G240RSER pin-compatible with SN74AUP2G240DCUR?
Yes-SN74AUP2G240RSER (UQFN-8/RSE) and SN74AUP2G240DCUR (VSSOP-8/DCU) share identical pin functions and logic behavior, but differ physically: RSE has 0.4-mm pitch and exposed thermal pad; DCU has 0.65-mm pitch and gull-wing leads. PCB layout is not interchangeable, though schematic symbol and netlist usage are fully compatible across both variants of SN74AUP2G240.
SN74AUP2G240RSER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 8-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- 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)
SN74AUP2G240RSER FAQ
1.How can I place an order for SN74AUP2G240RSER through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP2G240RSER 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 SN74AUP2G240RSER reliable?
The price and inventory of SN74AUP2G240RSER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP2G240RSER is usually 5 days.
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SN74AUP2G240RSER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP2G240RSER 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 SN74AUP2G240RSER?
For technical support, including SN74AUP2G240RSER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP2G240RSER requirements.
6.How does Aetrix verify that SN74AUP2G240RSER is sourced from the original manufacturer or authorized distributors?
All SN74AUP2G240RSER 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 SN74AUP2G240RSER meets industry standards.
7.What is the process for return or replacement of SN74AUP2G240RSER?
All SN74AUP2G240RSER units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP2G240RSER, 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 SN74AUP2G240RSER part is unused and in its original packaging.
Return procedure for SN74AUP2G240RSER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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