Texas Instruments SN74AUP1G74DQER

Overview

SN74AUP1G74DQER 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 range, delivering 5 ns max propagation delay at 3.3 V, 0.9 μA max ICC, and 5.5 pF typical Cpd - used in low-power clocked data latching for LED displays and I/O expanders.

For engineers reviewing the SN74AUP1G74DQER datasheet, SN74AUP1G74DQER pinout, SN74AUP1G74DQER application, or SN74AUP1G74DQER equivalent, key selection criteria include its X2SON-8 package footprint, Schmitt-trigger input noise immunity (250 mV typical hysteresis), Ioff partial-power-down support, 3.6-V I/O tolerance, and guaranteed operation down to 0.8 V for ultra-low-voltage battery systems.

Technical Context

This device implements a synchronous edge-triggered storage element with dual active-low asynchronous controls: CLR forces Q = L / Q = H, PRE forces Q = H / Q = L, and both low prioritizes CLR. Its internal logic operates independently of clock rise time, triggering at defined voltage thresholds.

The AUP family uses advanced CMOS process to achieve sub-1-μA static current across full VCC range while maintaining rail-to-rail output swing, 1.5 pF typical input capacitance, and <10% VCC overshoot/undershoot - enabling clean signal integrity in point-to-point interconnects without external termination.

Key Specifications

Pinout & Package

X2SON-8 package (1.40 mm × 1.00 mm, 0.5-mm pitch), ultra-compact footprint optimized for space-constrained portable electronics and wearables.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G74DQER and 74AHC1G74SE-8, SN74AUP1G74DQER uniquely delivers sub-1-μA static current, Schmitt-trigger noise rejection, and 0.8-V operation - making it the only choice for energy-harvesting sensors and multi-rail portable devices requiring zero-standby leakage and robust input conditioning.

Availability

SN74AUP1G74DQER is available at Aetrix Electronics and suitable for LED displays, I/O expanders, and telecom infrastructure requiring stable component supply, long-term lifecycle assurance, and consistent X2SON-8 packaging across production batches.

Supply support for SN74AUP1G74DQER 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 low-power logic innovation.

The AUP family - including SN74AUP1G74DQER - was engineered specifically for battery-powered portable electronics, emphasizing ultra-low static/dynamic power, wide VCC scalability, and robust signal integrity in space-constrained designs.

FAQ

What is the minimum supply voltage for reliable operation of the SN74AUP1G74DQER?

The SN74AUP1G74DQER is fully specified from 0.8 V to 3.6 V. At VCC = 0.8 V, it maintains functional operation with tpd ≤ 60 ns (CL = 5 pF) and setup/hold times met per datasheet Table 6.7. This enables direct use with single-cell lithium batteries or energy-harvesting sources without regulation.

Does the SN74AUP1G74DQER support partial-power-down mode, and how is it implemented?

Yes, the SN74AUP1G74DQER supports partial-power-down via its Ioff feature. When VCC = 0 V, the Ioff circuitry disables all outputs, preventing damaging back-current flow if I/O pins are driven externally. This is confirmed in Section 6.5 (Ioff = 0.2 μA max at VCC = 0 V) and Section 8.1 of the SCES644D datasheet.

How does the Schmitt-trigger input benefit the SN74AUP1G74DQER in real-world applications?

The Schmitt-trigger action on all inputs (PRE, CLR, CLK, D) provides 250 mV typical hysteresis at 3.3 V, allowing clean switching from slow-rising or noisy signals - such as mechanical push buttons or long PCB traces - without external RC filtering. This is explicitly documented in Section 1 (Features) and Section 8.3 of the SN74AUP1G74DQER datasheet.

Can the SN74AUP1G74DQER interface with 5-V logic systems?

Yes - all inputs are 3.6-V tolerant and rated to withstand up to 4.6 V (per Absolute Maximum Ratings, Section 6.1), enabling safe connection to 5-V outputs when VCC is ≥ 2.3 V. However, outputs swing rail-to-rail (0 V to VCC), so level translation is required for driving 5-V inputs unless the receiving device has 3.3-V-compatible thresholds.

What is the maximum clock frequency supported by the SN74AUP1G74DQER at 3.3 V?

At VCC = 3.3 V ± 0.3 V and CL = 5 pF, the SN74AUP1G74DQER supports up to 180 MHz typical and 90 MHz guaranteed (min/max over –40°C to +85°C) fmax, as specified in Section 6.8 (Switching Characteristics, CL = 5 pF). Performance degrades predictably with higher load capacitance.