Texas Instruments SN74AUP1G79DBVTG4

Overview

SN74AUP1G79DBVTG4 from Texas Instruments is a single positive-edge-triggered D-type flip-flop in a 5-pin SOT-23 package, operating across 0.8 V–3.6 V supply range, with 4 ns max propagation delay at 3.3 V, 0.9 µA max ICC, and Ioff support for partial power-down mode. It enables reliable data latching in low-power portable systems such as barcode scanners and embedded PCs.

For engineers reviewing the SN74AUP1G79DBVTG4 datasheet, SN74AUP1G79DBVTG4 pinout, SN74AUP1G79DBVTG4 application, or SN74AUP1G79DBVTG4 equivalent, key selection criteria include its ultra-low static/dynamic power (ICC ≤ 0.9 µA, Cpd = 3 pF), 3.6-V I/O tolerance for mixed-voltage interfacing, input hysteresis (250 mV typ) for noise immunity, and guaranteed operation down to –40°C.

Technical Context

The SN74AUP1G79DBVTG4 implements a synchronous edge-triggered storage element with clock-triggering defined by voltage threshold-not edge rate-enabling robust timing under slow-rising clock inputs. Its balanced CMOS push-pull output drives ±4 mA at 3 V while maintaining rail-to-rail VOH/VOL compliance.

It integrates Ioff circuitry that disables outputs during VCC ramp-down, preventing back-current flow, and features over-voltage tolerant inputs (up to 4.6 V) and internal clamp diodes compliant with JESD22-A114B (2000-V HBM) and JESD22-C101 (1000-V CDM).

Key Specifications

Pinout & Package

SOT-23 (DBV) package: 2.90 mm × 1.60 mm body, 5-pin surface-mount, lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G79DBVR and 74AHC1G79SE-7, the SN74AUP1G79DBVTG4 uniquely delivers sub-µA static current, Ioff-enabled isolation, and input hysteresis-all within a 0.8–3.6 V envelope-making it the sole choice for battery-constrained, mixed-voltage, or EMI-prone edge-node applications.

Availability

SN74AUP1G79DBVTG4 is available at Aetrix Electronics and suitable for barcode scanners, embedded PCs, and field transmitters requiring stable component supply with full traceability and long-term lifecycle assurance.

Supply support for SN74AUP1G79DBVTG4 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, reliability, and broad design support.

The AUP family-including SN74AUP1G79DBVTG4-is engineered specifically for battery-powered portable electronics, prioritizing ultra-low static/dynamic power consumption and robust signal integrity across wide voltage ranges.

FAQ

What is the minimum supply voltage for reliable operation of the SN74AUP1G79DBVTG4?

The SN74AUP1G79DBVTG4 is fully specified from 0.8 V to 3.6 V. At 0.8 V, it guarantees fmax ≥ 90 MHz and tpd ≤ 15.9 ns (CL = 5 pF, TA = –40°C to +85°C), enabling use in energy-harvesting and ultra-low-voltage microcontroller systems where other logic families fail to operate.

Does the SN74AUP1G79DBVTG4 support hot-swapping or partial power-down?

Yes. The SN74AUP1G79DBVTG4 incorporates Ioff circuitry that disables outputs and limits leakage to ≤0.6 µA when VCC = 0 V. This allows safe insertion into live backplanes or multi-rail systems where one domain powers down while others remain active-critical for modular industrial controllers.

Can the SN74AUP1G79DBVTG4 interface directly with 5 V logic signals?

No. While the SN74AUP1G79DBVTG4 accepts input voltages up to 4.6 V (absolute max), its recommended VI range is 0–3.6 V. Driving it with sustained 5 V signals violates operating conditions and risks reliability. Use a level shifter or select SN74LVC1G79DBVR for true 5 V compatibility.

What is the purpose of input hysteresis in the SN74AUP1G79DBVTG4?

The SN74AUP1G79DBVTG4 features 250 mV typical input hysteresis at 3.3 V, creating distinct VIH/VIL thresholds. This prevents metastability and chatter on slow-rising or noisy inputs-such as those from mechanical switches or quadrature encoders-without requiring external Schmitt triggers or RC filters.

How does the NanoStar™ packaging of the SN74AUP1G79DBVTG4 improve performance?

The NanoStar™ SOT-23 package used for SN74AUP1G79DBVTG4 employs die-as-package construction, minimizing bond wire inductance and package parasitics. This preserves signal integrity at high frequencies (up to 260 MHz at 3.3 V), reduces ground bounce, and improves ESD robustness-key for compact, high-density portable PCBs.