My Inquiry
My Account
Texas Instruments SN74AUP1G74RSER
- Part No.:
- SN74AUP1G74RSER
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-UFQFN
- Datasheet:
-
SN74AUP1G74RSER.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 8UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,290
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AUP1G74RSER from Texas Instruments is a single positive-edge-triggered D-type flip-flop with asynchronous active-low 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 data latching in space-constrained battery-powered systems such as LED display controllers and I/O expanders.
For engineers reviewing the SN74AUP1G74RSER datasheet, SN74AUP1G74RSER pinout, SN74AUP1G74RSER application, or SN74AUP1G74RSER equivalent, key selection criteria include its UQFN-8 (1.5 mm × 1.5 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 multi-rail voltage domain interfacing.
Technical Context
This device implements a synchronous edge-triggered storage element with priority-encoded asynchronous control: CLR overrides PRE when both are asserted low. Its logic core operates independently of clock slew rate due to voltage-level–based triggering, not edge-rate dependency.
The AUP family's design emphasizes static and dynamic power minimization across the full VCC range - achieved via optimized transistor sizing, low-input-capacitance (1.5 pF typical) inputs, and rail-to-rail output drive capability compatible with mixed-voltage signaling up to 3.6 V I/O tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.8 V to 3.6 V - enables direct interface with sub-1V logic domains and compatibility with 1.2V, 1.8V, 2.5V, and 3.3V systems |
| Max Propagation Delay | 5 ns at 3.3 V - supports >90 MHz clock operation with CL = 5 pF, suitable for high-speed point-to-point data capture |
| Static Current (ICC) | 0.9 μA maximum - extends battery life in always-on sensor nodes and wearable standby circuits |
| Input Capacitance (Ci) | 1.5 pF typical - minimizes loading on driving sources and preserves signal integrity in high-impedance routing |
| Ioff Support | Enabled - prevents backflow current during partial power-down, critical for hot-swap and power-gated subsystems |
| ESD Rating | ±2000 V HBM - meets industrial IEC 61000-4-2 level 2 requirements without external protection |
| Output Drive | ±4 mA at 3 V - sufficient to directly drive multiple 74-AUP inputs or small LEDs without buffer stages |
Pinout & Package
SN74AUP1G74RSER is housed in an 8-pin UQFN package (1.50 mm × 1.50 mm, 0.5 mm pitch) with wettable flanks for automated optical inspection. The exposed thermal pad is electrically connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLK | Positive-edge clock input with Schmitt-trigger action - accepts slow/noisy signals; triggers on voltage threshold, not edge rate |
| 2 | D | Data input sampled on CLK↑ - must meet tsu ≥ 1 ns (3.3 V) and th ≥ 0 ns relative to clock edge |
| 3 | Q | Non-inverted output - retains state until next valid CLK↑ with PRE/CLR inactive |
| 4 | GND | Ground reference - connects to PCB ground plane; ties thermal pad internally |
| 5 | Q̅ | Inverted output - complementary to Q; used for toggle configurations or differential signaling |
| 6 | CLR | Asynchronous active-low clear - forces Q = L, Q̅ = H regardless of CLK or D state |
| 7 | PRE | Asynchronous active-low preset - forces Q = H, Q̅ = L regardless of CLK or D state |
| 8 | VCC | Power supply - bypass with 0.1 μF capacitor placed ≤2 mm from pin to suppress switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low static power | 0.9 μA max ICC enables multi-year battery operation in IoT endpoint devices |
| Schmitt-trigger inputs | 250 mV typical hysteresis improves noise immunity on long traces or mechanical switch interfaces |
| Wide VCC range | 0.8 V–3.6 V operation supports direct integration into heterogeneous voltage-domain systems |
| Ioff partial-power-down | Prevents current backflow when VCC = 0 V, allowing safe isolation in modular power architectures |
| 3.6-V I/O tolerant | Inputs accept up to 4.6 V regardless of VCC - simplifies level-shifting in mixed-supply designs |
Applications
| LED Display Driver | I/O Expander Interface |
|---|---|
Use Scenario: Driving column select lines in multiplexed 7-segment or dot-matrix LED displays where timing-critical strobing is required. IC Role / Device Role / Timing Role: D-type flip-flop latches display data on each clock edge, synchronizing output updates with scan timing. Use Value: 5 ns tpd ensures precise alignment with microcontroller SPI or parallel bus timing, eliminating ghosting or flicker. | Use Scenario: Extending GPIO count on resource-constrained MCUs for sensor monitoring or button debouncing. IC Role / Device Role / Timing Role: Edge-triggered storage element captures asynchronous input events (e.g., push-button press) into synchronized digital domain. Use Value: Schmitt-trigger inputs tolerate slow mechanical transitions; Ioff allows MCU to power down while preserving latch state integrity. |
| Network Switch Control Logic | Motor Driver Enable Sequencing |
Use Scenario: Managing port enable/disable sequencing in low-power Ethernet switches during link auto-negotiation. IC Role / Device Role / Timing Role: Synchronizes control signals between PHY and MAC layers using clean, jitter-free clock edges. Use Value: Low Cpd (5.5 pF) minimizes dynamic power in high-frequency control loops; 0.8 V min VCC supports energy-harvesting auxiliary rails. | Use Scenario: Generating controlled enable pulses for H-bridge gate drivers to prevent shoot-through during startup. IC Role / Device Role / Timing Role: Toggle-mode configuration (Q→D feedback) creates precise, glitch-free enable toggling on each button press. Use Value: Asynchronous PRE/CLR allow hard reset of motor state independent of clock; undershoot/overshoot <10% VCC ensures clean gate drive edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G74DCKR | Higher ICC (10 μA typ), 1.65–5.5 V VCC range, no Ioff, no Schmitt inputs | Better suited for 5-V legacy systems; lacks partial-power-down and noise immunity for battery edge nodes | Choose when interfacing with 5-V peripherals and power efficiency is secondary to voltage compatibility |
| 74AHC1G74GW,125 | Wider VCC (2–5.5 V), higher speed (3.4 ns tpd @ 5 V), no Ioff, no Schmitt inputs | Optimized for high-speed industrial PLC I/O modules; incompatible with sub-1.2V logic domains | Prefer when system operates ≥2 V and requires fastest possible toggle rate with standard CMOS inputs |
Compared with SN74LVC1G74DCKR and 74AHC1G74GW,125, SN74AUP1G74RSER uniquely combines sub-1V operation, Ioff, Schmitt inputs, and <1 μA static current - making it the only viable choice for ultra-low-power, noise-prone, multi-rail embedded control points.
Availability
SN74AUP1G74RSER is available at Aetrix Electronics and suitable for LED displays, network switches, and motor drivers requiring stable component supply with consistent UQFN-8 packaging and TI-qualified manufacturing traceability.
Supply support for SN74AUP1G74RSER 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 and embedded processing solutions for industrial, automotive, and personal electronics markets.
The AUP logic family - including SN74AUP1G74RSER - was engineered specifically for ultra-low-power portable and battery-operated applications demanding extended runtime without sacrificing signal integrity or timing performance.
FAQ
What is the minimum supply voltage required for reliable operation of the SN74AUP1G74RSER?
The SN74AUP1G74RSER is fully specified to operate down to 0.8 V VCC across the full temperature range (–40°C to +85°C). At this voltage, setup time (tsu) remains ≥1 ns and propagation delay (tpd) is ≤31 ns (CL = 5 pF), enabling use in energy-harvesting and sub-threshold logic applications where other logic families fail.
Does the SN74AUP1G74RSER support partial power-down mode, and how is it implemented?
Yes, the SN74AUP1G74RSER supports partial power-down via its Ioff feature. When VCC = 0 V, the Ioff circuitry disables all outputs, limiting leakage current to ≤0.6 μA (TA = –40°C to +85°C). This prevents damaging backflow current from live buses into the unpowered device - essential for hot-plug and modular power architectures.
Can the SN74AUP1G74RSER be used in toggle mode, and what external components are needed?
Yes, the SN74AUP1G74RSER can be configured as a toggle flip-flop by connecting Q to D. No external components are required beyond VCC bypassing (0.1 μF ceramic capacitor). The internal Schmitt-trigger inputs ensure clean switching even with slow or noisy clock edges from mechanical buttons or RC oscillators.
What is the maximum clock frequency supported by the SN74AUP1G74RSER at 3.3 V supply?
At VCC = 3.3 V ± 0.3 V and TA = –40°C to +85°C with CL = 5 pF, the SN74AUP1G74RSER supports a maximum clock frequency (fmax) of 180 MHz. This is validated by timing parameters including tw(CLK) ≥ 2 ns and tsu ≥ 1 ns, ensuring robust operation in high-speed data sampling and serial interface synchronization.
How does the Schmitt-trigger input on the SN74AUP1G74RSER improve system reliability?
The Schmitt-trigger input on the SN74AUP1G74RSER provides 250 mV typical hysteresis (Vhys) at 3.3 V, rejecting noise spikes and contact bounce on slow-rising signals - such as those from pushbuttons, potentiometers, or long PCB traces. This eliminates metastability and false triggering without requiring external RC filtering or firmware debouncing.
SN74AUP1G74RSER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 8-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Clock Frequency:
- 100 MHz
- Max Propagation Delay @ V, Max CL:
- 7ns @ 3.3V, 30pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 4mA, 4mA
- Voltage - Supply:
- 0.8V ~ 3.6V
- Current - Quiescent (Iq):
- 500 nA
- Input Capacitance:
- 1.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UQFN (1.5x1.5)
SN74AUP1G74RSER FAQ
1.How can I place an order for SN74AUP1G74RSER through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G74RSER on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN74AUP1G74RSER reliable?
The price and inventory of SN74AUP1G74RSER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G74RSER is usually 5 days.
3.What payment methods are accepted for SN74AUP1G74RSER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP1G74RSER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUP1G74RSER?
SN74AUP1G74RSER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G74RSER order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN74AUP1G74RSER?
For technical support, including SN74AUP1G74RSER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G74RSER requirements.
6.How does Aetrix verify that SN74AUP1G74RSER is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G74RSER products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74AUP1G74RSER meets industry standards.
7.What is the process for return or replacement of SN74AUP1G74RSER?
All SN74AUP1G74RSER units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G74RSER, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN74AUP1G74RSER part is unused and in its original packaging.
Return procedure for SN74AUP1G74RSER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AUP1G74RSER Tags
-
SN74HC74DR
Texas Instruments
-
SN74HC74PWR
Texas Instruments
-
74LVC1G74GT,115
Nexperia USA Inc.
-
SN74LVC2G74DCUR
Texas Instruments
-
CD4013BM96
Texas Instruments
-
SN74HCT273PWR
Texas Instruments
-
SN74LVC1G74DCUR
Texas Instruments
-
SN74HC574DWR
Texas Instruments
-
74LVC1G74DC,125
Nexperia USA Inc.
-
SN74HC273DWR
Texas Instruments
-
SN74HCT574DWR
Texas Instruments
-
SN74LVC1G74DCTR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
