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Texas Instruments SN74AUC2G07DCKR
- Part No.:
- SN74AUC2G07DCKR
- Manufacturer:
- Texas Instruments
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
SN74AUC2G07DCKR.pdf
- Description:
- IC BUFFER NON-INVERT 2.7V SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:22,025
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Product details
Overview
SN74AUC2G07DCKR from Texas Instruments is a dual buffer/driver IC with open-drain outputs, designed for 1.65-V to 1.95-V operation and 3.6-V I/O tolerant logic interfaces. It delivers ±8-mA sink/source drive at 1.8 V, achieves 2.5 ns max propagation delay, consumes only 10 µA ICC at 1.8 V, and supports partial-power-down via Ioff. It is used in level-shifting, wired-AND bus interfacing, and low-voltage logic isolation circuits.
For engineers reviewing the SN74AUC2G07DCKR datasheet, SN74AUC2G07DCKR pinout, SN74AUC2G07DCKR application, or SN74AUC2G07DCKR equivalent, key selection criteria include open-drain compatibility, sub-2-V operation, Ioff-enabled power sequencing, 6-pin SC-70 package constraints, and 32-mA absolute max sink capability.
Technical Context
This device implements two independent noninverting buffers, each with an open-drain output stage enabling active-low wired-OR or active-high wired-AND logic functions when multiple outputs share a common pull-up. Its Ioff circuitry actively disables outputs during power-down to prevent backflow current, supporting mixed-mode voltage domain interoperability.
The SN74AUC2G07DCKR operates across 0.8 V to 2.7 V VCC but is optimized for 1.65–1.95 V supply rails. Input thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.35×VCC), and output VOL remains ≤0.45 V at 8 mA sink and 1.65 V VCC - critical for noise margin preservation in high-speed 1.8-V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V; fully functional down to 0.8 V, but specified for reliable 1.65–1.95 V operation |
| Max tpd | 2.5 ns at 1.8 V, CL = 15 pF; enables timing-critical signal buffering in high-speed digital interfaces |
| IOL (max) | 32 mA absolute maximum sink current; supports robust driving of external pull-ups or LED loads |
| Ioff Support | Active partial-power-down protection; blocks current flow when VCC = 0, preventing backfeed in multi-rail systems |
| IOH/IOL Drive | ±8 mA at 1.8 V; sufficient for driving standard CMOS inputs and small capacitive loads without external buffers |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM; meets industrial-grade robustness requirements for board-level handling |
| Input Thresholds | VIH = 0.65×VCC, VIL = 0.35×VCC; ensures rail-proportional logic recognition across supply variation |
Pinout & Package
SN74AUC2G07DCKR uses the SC-70 (DCK) 6-pin surface-mount package (1.85 mm × 1.40 mm × 1.10 mm max height), optimized for space-constrained portable and battery-powered designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A (Input A of Buffer 1) | Noninverting logic input; accepts 0.8–3.6 V signals, compatible with 1.2-V, 1.8-V, and 3.3-V logic families |
| 2 | GND | Ground reference for both buffers and internal circuitry; must be low-impedance for noise immunity |
| 3 | 1Y (Output Y of Buffer 1) | Open-drain output; requires external pull-up; sinks up to 32 mA; no internal pull-up |
| 4 | 2Y (Output Y of Buffer 2) | Independent open-drain output; electrically isolated from 1Y; enables dual-wired logic implementation |
| 5 | VCC | Positive supply input; powers both buffers; supports decoupling close to pin for stable high-speed operation |
| 6 | 2A (Input A of Buffer 2) | Second noninverting input; identical electrical behavior to Pin 1; allows independent control of two channels |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-package construction reduces footprint and thermal resistance; eliminates wirebond parasitics for improved signal integrity |
| 3.6-V I/O tolerance | Inputs and outputs withstand up to 3.6 V regardless of VCC, enabling safe interfacing with higher-voltage logic domains |
| Sub-1-V operability | Functional down to 0.8 V VCC; supports ultra-low-power modes and emerging sub-1-V digital subsystems |
| Latch-up immunity | Exceeds 100 mA per JESD 78 Class II; prevents destructive latch-up under transient overvoltage or ESD stress |
| Low dynamic power | 2.5 pF typical power dissipation capacitance (Cpd); minimizes switching current and system-level power consumption |
Applications
| Level-Shifting Interface | Wired-AND Bus Control |
|---|---|
Use Scenario: Interfacing a 1.8-V microcontroller GPIO to a 3.3-V I²C bus with pull-up to 3.3 V. IC Role / Device Role: Open-drain buffer isolating voltage domains while preserving logic polarity and timing. Use Value: Eliminates discrete MOSFET level shifters; leverages 3.6-V I/O tolerance and 1.8-V VCC to reduce BOM count and PCB area. | Use Scenario: Combining interrupt signals from multiple sensors onto a single MCU interrupt line. IC Role / Device Role: Dual open-drain driver enabling active-low wired-OR (equivalent to active-high wired-AND) signal aggregation. Use Value: Ensures glitch-free signal combination without contention; supports up to 32-mA sink per channel for reliable bus termination. |
| Partial-Power-Down Logic Isolation | Low-Voltage Sensor Signal Conditioning |
Use Scenario: Isolating always-on sensor interface logic from a main processor that powers down intermittently. IC Role / Device Role: Buffer maintaining signal integrity during VCC ramp-down/ramp-up transitions using Ioff protection. Use Value: Prevents back-current injection into powered-down domains; avoids system reset or data corruption during sleep/wake cycles. | Use Scenario: Driving analog-to-digital converter (ADC) input enable lines from a 1.2-V FPGA core. IC Role / Device Role: Low-threshold buffer translating sub-1.5-V logic to 1.8-V compatible levels for downstream peripherals. Use Value: Enables direct connection to 1.2-V logic without level-shifter overhead; maintains <2.5 ns propagation delay for timing-critical sampling control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-drain buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G07DCKR | Higher ICC (10 µA vs. 10 µA typical, but wider VCC range increases leakage); lower drive (±24 mA @ 3.3 V vs. ±8 mA @ 1.8 V) | Optimized for 1.65–5.5 V operation; less suitable for strict 1.8-V-only systems requiring minimal power | Select when broader supply range or higher drive at 3.3 V is needed; verify VOL at target load and VCC |
| NC7SZ07P5X | Smaller 5-pin SC-70 package; lower max sink (16 mA); no Ioff support; 1.65–5.5 V VCC range | Lacks partial-power-down protection; unsuitable for mixed-rail systems requiring back-current blocking | Choose for cost-sensitive, single-rail 3.3-V designs where Ioff is not required and drive demand is modest |
Compared with SN74LVC2G07DCKR and NC7SZ07P5X, SN74AUC2G07DCKR uniquely balances ultra-low 1.8-V power (10 µA), tight 2.5-ns timing, and Ioff-enabled power sequencing - making it optimal for battery-powered, multi-voltage SoC interfaces where reliability and efficiency are co-prioritized.
Availability
SN74AUC2G07DCKR is available at Aetrix Electronics and suitable for portable electronics, IoT sensor nodes, and low-power industrial controllers requiring stable component supply, consistent parametric performance, and long-term lifecycle availability.
Supply support for SN74AUC2G07DCKR 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 decades of expertise in logic, power management, and signal chain solutions.
The SN74AUC2G07DCKR belongs to TI's AUC ultra-low-voltage logic family, engineered specifically for high-speed, low-power operation in 1.8-V and mixed-voltage digital systems - targeting portable, wearable, and energy-efficient embedded applications.
FAQ
What is the recommended operating voltage range for SN74AUC2G07DCKR?
The SN74AUC2G07DCKR is fully specified for 1.65 V to 1.95 V VCC operation, though it remains functional from 0.8 V to 2.7 V. For guaranteed timing, drive strength, and noise margins, design within the 1.65–1.95 V window - especially at 1.8 V, where max tpd = 2.5 ns and IOL = ±8 mA are validated. Operation below 1.65 V may increase VOL and propagation delay beyond datasheet limits.
Does SN74AUC2G07DCKR support level shifting between different voltage domains?
Yes, SN74AUC2G07DCKR supports bidirectional level shifting via its 3.6-V I/O tolerant inputs and open-drain outputs. When VCC = 1.8 V, inputs accept 0–3.6 V signals, and outputs can be pulled up to any voltage ≤3.6 V (e.g., 3.3 V or 2.5 V). This enables safe interfacing between 1.8-V controllers and higher-voltage buses like I²C or SMBus without external components.
Can SN74AUC2G07DCKR outputs be directly paralleled for wired-logic functions?
Yes, SN74AUC2G07DCKR outputs are open-drain and explicitly designed for wired-logic implementation. Connecting 1Y and 2Y (or multiple SN74AUC2G07DCKR outputs) to a shared pull-up resistor creates an active-low wired-OR function. Ensure total sink current stays ≤32 mA per output and that the pull-up resistor value maintains VOL ≤0.45 V at worst-case load and temperature.
What is the purpose of Ioff in SN74AUC2G07DCKR, and how does it affect system design?
Ioff in SN74AUC2G07DCKR disables output drivers when VCC = 0 V, preventing damaging back-current flow from live I/O pins into a powered-down supply rail. This enables safe partial-power-down sequencing in multi-rail systems - for example, allowing a 3.3-V sensor bus to remain active while the 1.8-V logic domain powers down. No external isolation components are needed.
Is SN74AUC2G07DCKR pin-compatible with other 6-pin SC-70 logic buffers?
SN74AUC2G07DCKR follows the standard SC-70-6 pinout (1A, GND, 1Y, 2Y, VCC, 2A), matching TI's SN74LVC2G07DCKR and ON Semiconductor's NC7SZ07P5X. However, pin compatibility does not guarantee functional equivalence: SN74AUC2G07DCKR has tighter 1.8-V timing and Ioff, while alternatives differ in VCC range, drive strength, and power characteristics - verify all parameters before substitution.
SN74AUC2G07DCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- Open Drain
- Current - Output High, Low:
- -, 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
SN74AUC2G07DCKR FAQ
1.How can I place an order for SN74AUC2G07DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC2G07DCKR 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 SN74AUC2G07DCKR reliable?
The price and inventory of SN74AUC2G07DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC2G07DCKR is usually 5 days.
3.What payment methods are accepted for SN74AUC2G07DCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC2G07DCKR transactions.
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4.How is shipping managed for SN74AUC2G07DCKR?
SN74AUC2G07DCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC2G07DCKR 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 SN74AUC2G07DCKR?
For technical support, including SN74AUC2G07DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC2G07DCKR requirements.
6.How does Aetrix verify that SN74AUC2G07DCKR is sourced from the original manufacturer or authorized distributors?
All SN74AUC2G07DCKR 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 SN74AUC2G07DCKR meets industry standards.
7.What is the process for return or replacement of SN74AUC2G07DCKR?
All SN74AUC2G07DCKR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC2G07DCKR, 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 SN74AUC2G07DCKR part is unused and in its original packaging.
Return procedure for SN74AUC2G07DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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