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Texas Instruments SN74AUC2G34DCKRE4
- Part No.:
- SN74AUC2G34DCKRE4
- Manufacturer:
- Texas Instruments
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
SN74AUC2G34DCKRE4.pdf
- Description:
- IC BUFFER NON-INVERT 2.7V SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,595
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Product details
Overview
SN74AUC2G34DCKRE4 from Texas Instruments is a dual non-inverting buffer gate IC optimized for 1.65–1.95 V operation, delivering ±8 mA output drive at 1.8 V, sub-1-V operability down to 0.8 V, max 1.6 ns propagation delay at 1.8 V, and Ioff support for partial-power-down mode - used in low-voltage signal buffering for portable logic interfaces and voltage-level translation between mixed-supply domains.
For engineers reviewing the SN74AUC2G34DCKRE4 datasheet, SN74AUC2G34DCKRE4 pinout, SN74AUC2G34DCKRE4 application, or SN74AUC2G34DCKRE4 equivalent, key selection considerations include its SC-70-6 (DCK) package, 1.8-V-optimized timing, Ioff-enabled power sequencing, and 3.6-V I/O tolerance enabling interoperability with higher-voltage logic families.
Technical Context
This device implements two independent positive-logic buffers (Y = A), each with rail-to-rail output swing and CMOS-compatible input thresholds. Its architecture supports simultaneous operation across 0.8–2.7 V supply range while maintaining guaranteed performance within 1.65–1.95 V - the target window for ultra-low-power mobile and battery-operated systems.
The Ioff circuitry actively disables outputs when VCC = 0 V, blocking current backflow during partial power-down; combined with ±8-mA drive capability at 1.8 V and 1.6 ns tpd, it enables clean signal integrity in hot-swap and multi-rail power domain isolation scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - supports sub-1-V operation and mixed-mode I/O up to 3.6 V |
| Max tpd @ 1.8 V | 1.6 ns - enables high-speed signal routing in compact portable logic paths |
| Output Drive | ±8 mA @ 1.8 V - sufficient to drive 15-pF loads with <2 ns edge rates without external termination |
| Ioff Support | Yes - prevents damaging back-current during VCC ramp-down or hot-insertion in multi-supply systems |
| Input Thresholds | VIH = 0.65×VCC, VIL = 0.35×VCC - ensures robust noise margin across full VCC operating range |
| Power Consumption | 10 µA ICC @ 1.8 V - minimizes quiescent load in always-on subsystems like wake-up logic |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM - meets industrial handling requirements without added protection circuitry |
Pinout & Package
SN74AUC2G34DCKRE4 uses the SC-70-6 (DCK) package: 2.0 mm × 1.25 mm, 0.65 mm pitch, 1.1 mm max height, with pin 1 identifier in top-left corner per JEDEC MO-203 AB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A (Input) | First buffer input - accepts 0.8–3.6 V logic levels; internally pulled neither high nor low |
| 2 | VCC | Supply rail - must be decoupled locally; powers both buffers and Ioff control circuitry |
| 3 | 2Y (Output) | Second buffer output - delivers rail-to-rail CMOS output with ±8 mA sink/source at 1.8 V |
| 4 | 2A (Input) | Second buffer input - electrically isolated from 1A; identical threshold and drive behavior |
| 5 | GND | Ground reference - shared return path for both buffers and internal bias networks |
| 6 | 1Y (Output) | First buffer output - matches 2Y in timing, drive strength, and Ioff behavior |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-package construction reduces footprint by >50% vs. standard SC-70, enabling ultra-dense PCB layouts |
| 3.6-V I/O tolerance | Allows direct connection to 3.3-V or 2.5-V logic without level shifters in mixed-supply systems |
| Sub-1-V operability | Functional down to 0.8 V VCC - supports emerging ultra-low-power microcontroller peripherals and sensor hubs |
| Latch-up immunity | Exceeds 100 mA per JESD 78 Class II - eliminates need for external current-limiting in noisy environments |
| Partial-power-down support | Ioff limits leakage to ±10 µA when VCC = 0 - critical for battery-backed real-time clock or memory retention circuits |
Applications
| Mobile Baseband Interface | Low-Power Sensor Hub Buffering |
|---|---|
|
Use Scenario: Isolating GPIO signals between an ultra-low-power MCU (1.8 V) and a 3.3-V cellular modem interface. IC Role / Device Role / Timing Role: Dual buffer providing level-tolerant, low-delay signal pass-through with Ioff-enabled safe power sequencing during modem sleep cycles. Use Value: Eliminates discrete level shifters and reduces BOM count while maintaining <2 ns timing margin on critical control lines. |
Use Scenario: Driving multiple capacitive touch sensor inputs from a single low-voltage ADC controller output. IC Role / Device Role / Timing Role: Fan-out buffer distributing clean, slew-controlled logic edges to parallel sensor channels without signal degradation. Use Value: Delivers ±8 mA drive into 20-pF aggregate load at 1.8 V, ensuring monotonic transitions and eliminating false triggers. |
| Wearable Power-Rail Sequencing | Industrial IoT Edge Node Logic Translation |
|
Use Scenario: Enabling controlled wake-up of auxiliary sensors only after main SoC VCC stabilizes in a hearable device. IC Role / Device Role / Timing Role: Buffer gated by power-good signal, leveraging Ioff to prevent backfeed during VCC ramp-up. Use Value: Guarantees zero current flow from powered peripherals into unpowered MCU domains during cold start. |
Use Scenario: Interfacing a 1.8-V FPGA I/O bank with legacy 2.5-V industrial bus transceivers. IC Role / Device Role / Timing Role: Bidirectional-capable buffer (with external direction control) translating logic levels while preserving timing integrity. Use Value: Maintains 1.6 ns tpd and 3.6-V I/O tolerance - avoids timing closure issues in deterministic real-time fieldbus links. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G34DCKR | Higher ICC (10 µA vs. 10 µA typical), wider VCC range (1.65–5.5 V), slower tpd (2.5 ns @ 3.3 V), no sub-1-V operation | Better suited for 3.3-V dominant systems requiring broader voltage compatibility over ultra-low-power optimization | Select when system operates primarily at ≥3.0 V and requires higher noise immunity margins |
| 74AUP2G34GW,115 | Lower ICC (0.9 µA), slower tpd (3.0 ns @ 1.8 V), same 0.8–2.7 V range, no Ioff support | Optimized for lowest static power in always-on monitoring nodes where dynamic speed is secondary | Select when quiescent current is the primary constraint and partial-power-down is not required |
Compared with SN74LVC2G34DCKR and 74AUP2G34GW,115, the SN74AUC2G34DCKRE4 uniquely balances sub-1-V operation, 1.6 ns speed at 1.8 V, and Ioff - making it the only choice for battery-powered systems demanding both ultra-low-voltage startup and fast, safe power sequencing.
Availability
SN74AUC2G34DCKRE4 is available at Aetrix Electronics and suitable for mobile baseband interfacing, wearable power-rail sequencing, and low-power sensor hub buffering requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74AUC2G34DCKRE4 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 digital signal technologies, with decades of leadership in logic IC innovation and low-power design.
The SN74AUC2G34DCKRE4 belongs to TI's AUC advanced ultra-low-voltage logic family, engineered specifically for battery-constrained portable electronics requiring sub-1-V operation, nanosecond timing, and robust mixed-supply interoperability.
FAQ
What is the minimum operating voltage for SN74AUC2G34DCKRE4?
The SN74AUC2G34DCKRE4 operates down to 0.8 V VCC, with guaranteed functionality and specified timing (tpd ≤ 6.4 ns) at that level. Its design targets 1.65–1.95 V as the optimal window, but sub-1-V operation enables use in energy-harvesting and ultra-low-power wake-up circuits where SN74AUC2G34DCKRE4 maintains reliable logic transfer.
Does SN74AUC2G34DCKRE4 support partial-power-down mode?
Yes, SN74AUC2G34DCKRE4 includes Ioff circuitry that disables outputs when VCC = 0 V, limiting Ioff leakage to ±10 µA. This prevents current backflow from live I/O lines into a powered-down domain - a critical feature for SN74AUC2G34DCKRE4 in multi-rail systems like wearables with independent sensor and processor power domains.
What is the maximum propagation delay of SN74AUC2G34DCKRE4 at 1.8 V?
The maximum propagation delay (tpd) of SN74AUC2G34DCKRE4 is 1.6 ns at 1.8 V, measured under CL = 30 pF and RL = 500 Ω conditions. This value is guaranteed across –40°C to 85°C and represents worst-case timing for signal routing in high-speed portable logic paths using SN74AUC2G34DCKRE4.
Is SN74AUC2G34DCKRE4 compatible with 3.3-V logic inputs?
Yes, SN74AUC2G34DCKRE4 features 3.6-V I/O tolerance, meaning its inputs accept voltages up to 3.6 V regardless of VCC level. This allows direct connection to 3.3-V logic outputs without level-shifting circuitry - a key interoperability advantage confirmed in SN74AUC2G34DCKRE4's absolute maximum ratings and recommended operating conditions.
What package type does SN74AUC2G34DCKRE4 use?
SN74AUC2G34DCKRE4 uses the SC-70-6 (DCK) package: 2.0 mm × 1.25 mm body, 0.65 mm lead pitch, 1.1 mm maximum height, with pin 1 marked in the top-left corner. This compact footprint is defined in TI's DCK0006A drawing and aligns with IPC-7351 land pattern guidelines for SN74AUC2G34DCKRE4 mounting.
SN74AUC2G34DCKRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- 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:
- SC-70-6
SN74AUC2G34DCKRE4 FAQ
1.How can I place an order for SN74AUC2G34DCKRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC2G34DCKRE4 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 SN74AUC2G34DCKRE4 reliable?
The price and inventory of SN74AUC2G34DCKRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC2G34DCKRE4 is usually 5 days.
3.What payment methods are accepted for SN74AUC2G34DCKRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC2G34DCKRE4 transactions.
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4.How is shipping managed for SN74AUC2G34DCKRE4?
SN74AUC2G34DCKRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC2G34DCKRE4 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 SN74AUC2G34DCKRE4?
For technical support, including SN74AUC2G34DCKRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC2G34DCKRE4 requirements.
6.How does Aetrix verify that SN74AUC2G34DCKRE4 is sourced from the original manufacturer or authorized distributors?
All SN74AUC2G34DCKRE4 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 SN74AUC2G34DCKRE4 meets industry standards.
7.What is the process for return or replacement of SN74AUC2G34DCKRE4?
All SN74AUC2G34DCKRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC2G34DCKRE4, 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 SN74AUC2G34DCKRE4 part is unused and in its original packaging.
Return procedure for SN74AUC2G34DCKRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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