Texas Instruments SN74AUC2G80DCURG4

Overview

SN74AUC2G80DCURG4 from Texas Instruments is a dual positive-edge-triggered D-type flip-flop in an 8-pin VSSOP (DCU) package, operating from 0.8 V to 2.7 V with 1.9 ns max propagation delay at 1.8 V, ±8-mA output drive, and Ioff support for partial-power-down mode - used in high-speed level-shifting and clock-domain synchronization in portable low-voltage logic systems.

For engineers reviewing the SN74AUC2G80DCURG4 datasheet, SN74AUC2G80DCURG4 pinout, SN74AUC2G80DCURG4 application, or SN74AUC2G80DCURG4 equivalent, key selection criteria include sub-2 ns timing at 1.8 V, 0.8–2.7 V supply flexibility, Ioff-enabled power sequencing, and VSSOP footprint compatibility with space-constrained PCB layouts.

Technical Context

This device implements two independent D-type flip-flops, each triggered on the rising edge of its dedicated clock input (1CLK, 2CLK), with data sampled at D inputs and registered to Q outputs without internal feedback or reset/set control. It uses standard CMOS logic architecture with no internal termination or configurable I/O standards.

Designed for mixed-signal interfacing, it supports 3.6-V I/O tolerance while powered from as low as 0.8 V, enabling voltage translation between 1.2-V, 1.5-V, and 1.8-V domains. Its Ioff circuitry actively disables outputs during power-down, preventing back-current flow when VCC = 0 V.

Key Specifications

Pinout & Package

VSSOP (DCU) package: 8-pin, 2.4 mm × 2.0 mm body, 0.5-mm pitch, 0.9-mm max height, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual D-type flip-flop applications.

Compared with SN74AUC2G80DCURG4, SN74AUP2G80DCUR trades 0.6 ns speed for 50% lower ICC, while 74LVC2G80GW,125 sacrifices sub-1-V operation and Ioff for broader 3.3-V ecosystem compatibility - making SN74AUC2G80DCURG4 optimal for mixed-supply, high-speed, power-aware designs.

Availability

SN74AUC2G80DCURG4 is available at Aetrix Electronics and suitable for mobile baseband timing, USB 2.0 PHY interface, and industrial sensor hub applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant VSSOP packaging.

Supply support for SN74AUC2G80DCURG4 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 with emphasis on power efficiency, signal integrity, and industrial reliability.

SN74AUC2G80DCURG4 belongs to the AUC logic family - engineered for ultra-high-speed, low-voltage operation in portable and battery-constrained systems where timing precision and power scalability are critical.

FAQ

What is the minimum supply voltage at which SN74AUC2G80DCURG4 guarantees functional operation?

SN74AUC2G80DCURG4 is fully specified down to 0.8 V VCC per TI's recommended operating conditions. At this voltage, it maintains valid setup/hold timing, logic thresholds, and output drive capability - confirmed by characterization data across –40°C to 85°C. Operation below 0.8 V is not guaranteed and may result in metastability or failure to latch.

Does SN74AUC2G80DCURG4 support true bidirectional signal translation between different voltage domains?

No - SN74AUC2G80DCURG4 is a unidirectional D-type flip-flop with fixed input-to-output data flow. While its 3.6-V I/O tolerance allows receiving 3.3-V signals when powered from 1.8 V, it cannot drive back into a higher-voltage domain without external level-shifting circuitry. The device performs level-aware registration, not bidirectional translation.

Can SN74AUC2G80DCURG4 be used with a single shared clock for both flip-flop sections?

Yes - though SN74AUC2G80DCURG4 provides separate 1CLK and 2CLK inputs, they may be tied together externally to synchronize both sections. No internal restriction prevents this; timing analysis must account for routing skew and ensure setup/hold margins are met at both D inputs relative to the common clock edge.

Is the VSSOP (DCU) package of SN74AUC2G80DCURG4 compatible with standard SSOP (DCT) footprints?

No - SN74AUC2G80DCURG4 uses the DCU package (2.4 mm × 2.0 mm, 0.5-mm pitch), whereas DCT is larger (3.1 mm × 3.1 mm, 0.65-mm pitch). They are mechanically incompatible; PCB layout, stencil design, and reflow profiles must be specific to DCU. Migration requires board redesign.

How does the Ioff feature of SN74AUC2G80DCURG4 behave during partial power-down sequences?

When VCC = 0 V, the Ioff circuitry in SN74AUC2G80DCURG4 places all outputs (1Q, 2Q) in high-impedance state and blocks current flow through I/O pins - even if external voltages up to 3.6 V are present on D or CLK inputs. This prevents back-current damage to powered-down sections and complies with JEDEC JESD78 Class II latch-up immunity.