Texas Instruments SN74AUP1G79YZPR

Overview

SN74AUP1G79YZPR from Texas Instruments is a single positive-edge-triggered D-type flip-flop in a 5-pin DSBGA package (1.39 mm × 0.89 mm), operating across 0.8 V to 3.6 V supply, with 4 ns max propagation delay at 3.3 V, 0.9 µA max ICC, and 1.5 pF typical input capacitance - used for clock-synchronized data latching in portable sensor interfaces and low-power embedded timing control.

For engineers reviewing the SN74AUP1G79YZPR datasheet, SN74AUP1G79YZPR pinout, SN74AUP1G79YZPR application, or SN74AUP1G79YZPR equivalent, key selection criteria include its Ioff-enabled partial power-down capability, 250 mV typical input hysteresis for noise immunity, 3.6-V I/O tolerance for mixed-voltage interfacing, and verified performance down to –40°C for industrial edge nodes.

Technical Context

The SN74AUP1G79YZPR implements a synchronous edge-triggered storage element with voltage-level clock detection independent of input slew rate, enabling robust operation with slow or noisy clock edges. Its balanced CMOS push-pull output drives ±4 mA at 3 V while maintaining <10% overshoot/undershoot relative to VCC.

It supports partial power-down via Ioff circuitry that disables outputs and limits leakage to ≤0.6 µA when VCC = 0 V, and features over-voltage tolerant inputs rated up to 4.6 V - critical for level-shifting between 1.8-V logic and 3.3-V peripherals without external translators.

Key Specifications

Pinout & Package

SN74AUP1G79YZPR uses a 5-pin DSBGA (Die Size Ball Grid Array) package with 0.4-mm pitch, body size 1.39 mm × 0.89 mm, bottom-side ball layout optimized for minimal PCB footprint and thermal resistance (RθJB = 39.3°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G79YZPR and 74AHC1G79GW,125, the SN74AUP1G79YZPR uniquely delivers sub-1-µA static current, 0.8-V operation, Ioff protection, and input hysteresis - making it the only choice for energy-constrained, multi-rail, or mechanically noisy edge-node applications.

Availability

SN74AUP1G79YZPR is available at Aetrix Electronics and suitable for barcode scanner interfaces, field transmitter signal conditioning, and fingerprint biometric modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74AUP1G79YZPR 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 personal electronics markets.

The AUP (Advanced Ultra-Low-Power) logic family, including SN74AUP1G79YZPR, was designed specifically for battery-powered portable applications demanding ultra-low static and dynamic power across wide voltage ranges while preserving signal integrity.

FAQ

What is the minimum supply voltage for reliable operation of the SN74AUP1G79YZPR?

The SN74AUP1G79YZPR is fully specified from 0.8 V to 3.6 V. At 0.8 V, it supports clock frequencies up to 20 MHz with setup time of 4.2 ns and propagation delay of 15.9 ns (CL = 5 pF). This makes SN74AUP1G79YZPR suitable for deep-sleep modes in energy-harvesting systems where supply drops below 1.0 V but must retain basic synchronization capability.

Does the SN74AUP1G79YZPR support partial power-down, and how does it behave when VCC = 0 V?

Yes, SN74AUP1G79YZPR supports partial power-down via Ioff circuitry. When VCC = 0 V, all inputs and outputs enter a high-impedance state with leakage ≤0.6 µA (TA = –40°C to 85°C). This prevents back-current flow into the device from live I/O lines - a critical feature for hot-pluggable modules or multi-rail systems where power sequencing is uncontrolled.

Can the SN74AUP1G79YZPR interface directly between a 1.8-V microcontroller and a 3.3-V sensor output?

Yes. The SN74AUP1G79YZPR has 3.6-V tolerant inputs and operates down to 0.8 V. With VCC = 1.8 V, its inputs accept 0–3.3 V signals without damage or level-shifting. Its Q output swings rail-to-rail (0 V to 1.8 V), so a second buffer or voltage translator is needed only if the downstream 3.3-V device requires 3.3-V logic levels - not for input reception.

What is the purpose of input hysteresis in the SN74AUP1G79YZPR, and how does it improve system reliability?

The SN74AUP1G79YZPR features 250 mV typical input hysteresis at 3.3 V, which creates distinct high/low thresholds (e.g., VIH ≈ 1.6 V, VIL ≈ 1.35 V). This prevents multiple toggles on slow or noisy edges - such as those from mechanical encoders or unfiltered sensor outputs - eliminating the need for external RC filters or Schmitt-trigger buffers and improving robustness in industrial environments.

Is the SN74AUP1G79YZPR pin-compatible with other members of the SN74AUP1Gxx family?

No. SN74AUP1G79YZPR is a 5-pin DSBGA device with pinout D–CLK–GND–Q–VCC. Other AUP1G variants (e.g., SN74AUP1G04, SN74AUP1G08) share the same pin count and function mapping only within identical package types (e.g., YZP), but logic function and internal architecture differ. Always verify pin functions per datasheet - do not assume functional or physical interchangeability across part numbers.