Texas Instruments SN74AUP1G74YFPR

Overview

SN74AUP1G74YFPR from Texas Instruments is a single positive-edge-triggered D-type flip-flop with asynchronous clear (CLR) and preset (PRE), operating across 0.8 V to 3.6 V supply. It delivers 5 ns maximum propagation delay at 3.3 V, 0.9 μA maximum ICC, and 5.5 pF typical Cpd - enabling ultra-low-power synchronous logic in space-constrained portable systems such as LED display controllers and I/O expanders.

For engineers reviewing the SN74AUP1G74YFPR datasheet, SN74AUP1G74YFPR pinout, SN74AUP1G74YFPR application, or SN74AUP1G74YFPR equivalent, key selection criteria include its DSBGA-8 (1.56 mm × 0.76 mm) package, Schmitt-trigger input noise immunity (250 mV typical hysteresis), Ioff partial-power-down support, and guaranteed operation down to 0.8 V for battery-backed subsystems.

Technical Context

This device implements a master–slave edge-triggered D flip-flop architecture with fully asynchronous active-low PRE and CLR inputs that override clock and data. Its dual-output (Q and Q) structure supports complementary latching without external inverters.

The AUP family uses advanced CMOS process technology to maintain sub-1 μA static current across the full 0.8–3.6 V VCC range while delivering rail-to-rail output swing and 3.6-V tolerant inputs - enabling mixed-voltage interfacing in modern low-power embedded systems.

Key Specifications

Pinout & Package

SN74AUP1G74YFPR is packaged in an 8-pin DSBGA (NanoStar™) with 0.4-mm pitch, body size 1.56 mm × 0.76 mm, and bottom-side solder balls. This ultra-compact package enables placement directly beneath fine-pitch MCUs or in tight board areas where traditional SOIC or VSSOP cannot fit.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G74DCKR and NC7SZ74P5X, SN74AUP1G74YFPR uniquely combines ultra-low ICC (<1 μA), Ioff, Schmitt inputs, and 0.8-V operation - making it the only choice for energy-harvesting or long-life battery-powered designs requiring robust asynchronous control.

Availability

SN74AUP1G74YFPR is available at Aetrix Electronics and suitable for LED display control, power button debounce, network switch status latching, and low-power I/O expansion requiring stable component supply across automotive, industrial, and consumer design cycles.

Supply support for SN74AUP1G74YFPR 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 company delivering analog and embedded processing solutions for industrial, automotive, personal electronics, and communications markets.

SN74AUP1G74YFPR belongs to the AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for battery-operated portable devices needing sub-1-μA static current, wide VCC scalability, and robust noise immunity without sacrificing speed.

FAQ

What is the minimum operating voltage for SN74AUP1G74YFPR?

The SN74AUP1G74YFPR operates down to 0.8 V VCC, enabling compatibility with emerging ultra-low-voltage microcontrollers and energy-harvesting power sources. At 0.8 V, it maintains functional timing with fmax ≥ 21 MHz and tpd ≤ 60 ns (CL = 5 pF), verified across –40°C to +85°C. This capability is intrinsic to the AUP family's process optimization and is explicitly specified in Section 6.3 of the SCES644D datasheet.

Does SN74AUP1G74YFPR support partial power-down mode?

Yes, SN74AUP1G74YFPR supports partial power-down mode via its Ioff specification. When VCC = 0 V, the Ioff current is limited to 0.6 μA maximum (TA = –40°C to +85°C), preventing damaging backflow current from live inputs into the unpowered device. This feature is critical for hot-swap applications and multi-rail systems where subsystems power up/down independently - and is confirmed in Section 6.5 and 6.6 of the SN74AUP1G74YFPR datasheet.

What is the purpose of the Schmitt-trigger inputs on SN74AUP1G74YFPR?

The Schmitt-trigger inputs on SN74AUP1G74YFPR provide 250 mV typical hysteresis at 3.3 V, allowing reliable switching from slow-rising or noisy signals such as mechanical push buttons or open-collector sensors. This eliminates external RC debounce networks and prevents metastability caused by marginal input transitions - a design value explicitly cited in the "Features" section and quantified in Section 8.3 of the SCES644D datasheet.

Can SN74AUP1G74YFPR be used as a toggle flip-flop?

Yes, SN74AUP1G74YFPR can be configured as a toggle flip-flop by connecting Q to D. With PRE and CLR held high, each rising clock edge toggles the output state. This configuration is demonstrated in Figure 5 ("Typical Power Button Circuit") of the datasheet and leverages the device's guaranteed setup/hold timing (tsu = 0.5 ns min at 3.3 V) and low propagation delay for reliable edge-triggered operation.

Is SN74AUP1G74YFPR pin-compatible with other 8-pin DSBGA logic devices?

SN74AUP1G74YFPR uses the standard 8-ball DSBGA (NanoStar™) footprint with 0.4-mm pitch and ball map A1–A2–B1–B2–C1–C2–D1–D2. While ball assignment matches TI's common DSBGA-8 logic pinout (CLK, D, Q, GND, Q, CLR, PRE, VCC), pin compatibility with non-TI or non-AUP devices must be verified per datasheet - as function mapping (e.g., PRE/CLR location) is not standardized across vendors. The mechanical dimensions and solder mask layout are identical across TI's YFP/YZP-series DSBGA-8 logic parts.