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Texas Instruments SN74AUP1G74DCURG4
- Part No.:
- SN74AUP1G74DCURG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
SN74AUP1G74DCURG4.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,510
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Product details
Overview
SN74AUP1G74DCURG4 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. It delivers ultra-low static current (ICC ≤ 0.9 μA), 5 ns max propagation delay at 3.3 V, and supports partial-power-down via Ioff. Used in LED display timing control and low-power I/O expansion.
For engineers reviewing the SN74AUP1G74DCURG4 datasheet, SN74AUP1G74DCURG4 pinout, SN74AUP1G74DCURG4 application, or SN74AUP1G74DCURG4 equivalent, key selection criteria include its dual active-low asynchronous controls, Schmitt-trigger input noise immunity (Vhys = 250 mV typ), 3.6-V I/O tolerance, and VSSOP-8 package compatibility with space-constrained portable designs.
Technical Context
This device implements a master-slave D flip-flop architecture with independent asynchronous set/reset logic that overrides clocked operation. Its Schmitt-trigger inputs accept slow-rising signals (Δt/Δv ≤ 200 ns/V) and reject noise below 250 mV hysteresis, enabling robust interfacing with mechanical switches or noisy MCU GPIOs.
The Ioff circuitry actively disables outputs during power-down, blocking current backflow when VCC = 0 V while inputs remain biased at 0–3.6 V - critical for hot-swap and multi-rail systems. All timing parameters (tsu = 0.5 ns min, th = 0 ns, tpd = 1–5 ns) are guaranteed over –40°C to +85°C at VCC = 0.8–3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 3.6 V - enables direct interface with 1.2-V, 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters |
| ICC (max) | 0.9 μA at TA = 25°C - extends battery life in always-on sensor nodes and wearable devices |
| tpd (max) | 5 ns at VCC = 3.3 V - supports >90 MHz clocking in point-to-point data path applications |
| Input Hysteresis | 250 mV typical at 3.3 V - rejects EMI and contact bounce in push-button interfaces |
| Ioff Support | Active at VCC = 0 V - prevents back-current damage during partial system power-down |
| ESD Rating | ±2000 V HBM - meets industrial handling requirements without additional protection circuitry |
| Output Drive | ±4 mA at VCC = 3 V - directly drives LEDs or small capacitive loads (CL ≤ 30 pF) |
Pinout & Package
VSSOP-8 (DCU) package: 2.30 mm × 2.00 mm body, 0.65 mm lead pitch, exposed pad not present. RoHS-compliant, lead-free, green molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CLK | Positive-edge clock input - triggers Q/Q update only on rising transition; insensitive to rise time |
| 2 | D | Data input - sampled at CLK↑ if PRE and CLR are high; latched value appears at Q after tpd |
| 3 | Q | True output - reflects D state after CLK↑; driven actively high/low, no high-Z state |
| 4 | GND | Ground reference - must be connected to system ground plane; decoupling capacitor placed adjacent |
| 5 | Q | Inverted output - complementary to Q; used for toggle configuration or differential signaling |
| 6 | CLR | Asynchronous clear - active-low; forces Q = L, Q = H regardless of CLK or D state |
| 7 | PRE | Asynchronous preset - active-low; forces Q = H, Q = L regardless of CLK or D state |
| 8 | VCC | Power supply - bypassed with 0.1-μF ceramic capacitor placed ≤2 mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low static power | ICC ≤ 0.9 μA max enables multi-year battery operation in IoT endpoint nodes |
| Schmitt-trigger inputs | 250 mV hysteresis eliminates need for external RC filtering on mechanical switch inputs |
| 3.6-V I/O tolerance | Accepts 0–4.6 V input voltages at any valid VCC - simplifies mixed-voltage board design |
| Partial-power-down support | Ioff blocks >99.9% back-current when VCC = 0 V - essential for hot-plug subsystems |
| NanoStar™ packaging | VSSOP-8 footprint provides industry-standard solderability and rework compatibility |
Applications
| LED Display Row Driver | Low-Power I/O Expander |
|---|---|
Use Scenario: Driving 7-segment or dot-matrix display rows in battery-powered handheld instruments. IC Role / Device Role / Timing Role: D flip-flop configured as synchronous latch to hold row enable state between scan cycles. Use Value: 5 ns tpd ensures precise row timing alignment; 0.9 μA ICC minimizes display subsystem quiescent draw. | Use Scenario: Adding two synchronized GPIOs to an MCU with limited pins, e.g., for status indication and fault flagging. IC Role / Device Role / Timing Role: Edge-triggered register capturing MCU output bits on clock edge for synchronized peripheral control. Use Value: Dual Q/Q outputs provide true/inverted signals without external inverters; 3.6-V I/O tolerance allows direct connection to 3.3-V MCU. |
| Telecom Line Card Control | Motor Driver Enable Sequencing |
Use Scenario: Managing power-up sequencing of line interface ICs in telecom access equipment. IC Role / Device Role / Timing Role: Asynchronous PRE/CLR used to force known initial states before clock initialization. Use Value: Independent active-low set/reset enables deterministic startup without clock dependency; Ioff prevents backfeed during card hot-swap. | Use Scenario: Synchronizing enable signals for H-bridge drivers in BLDC motor controllers. IC Role / Device Role / Timing Role: Toggle-mode configuration (Q→D) generating complementary enable pulses for upper/lower FETs. Use Value: Propagation delay matching between Q and Q ensures <1 ns skew; ±4 mA drive directly interfaces gate drivers. |
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 |
|---|---|---|---|
| SN74LVC1G74DCUR | Higher ICC (10 μA typ), 3.3-V only VCC range (1.65–5.5 V), no Ioff or Schmitt inputs | Lacks partial-power-down and noise immunity; requires clean clock sources | Choose when cost is primary and system operates exclusively at 3.3 V with stable inputs |
| 74AHC1G74SE-7 | Wider VCC (2–5.5 V), higher speed (tpd = 3.3 ns typ), no Ioff, different pinout (SOT-353) | Not pin-compatible; requires PCB redesign; unsuitable for sub-2-V operation | Choose for 5-V systems needing faster toggle rates, accepting layout change and no power-down protection |
Compared with SN74LVC1G74DCUR and 74AHC1G74SE-7, SN74AUP1G74DCURG4 uniquely combines sub-1-μA quiescent current, 0.8-V operation, Ioff, and Schmitt inputs - making it the only option for ultra-low-power, mixed-voltage, noise-prone applications where pin compatibility and power integrity are mandatory.
Availability
SN74AUP1G74DCURG4 is available at Aetrix Electronics and suitable for LED displays, telecom infrastructure, and motor driver enable sequencing requiring stable component supply and long-term manufacturability.
Supply support for SN74AUP1G74DCURG4 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 family was engineered specifically for battery-powered portable applications demanding lowest possible static and dynamic power across wide voltage ranges - exemplified by SN74AUP1G74DCURG4's 0.8–3.6 V operation and sub-μA ICC.
FAQ
What is the maximum clock frequency supported by SN74AUP1G74DCURG4 at 3.3 V?
At VCC = 3.3 V ± 0.3 V and TA = –40°C to +85°C, SN74AUP1G74DCURG4 supports up to 180 MHz maximum clock frequency with CL = 5 pF load. This is verified in Section 6.8 of the SCES644D datasheet under "Switching Characteristics, CL = 5 pF". Performance degrades with higher capacitive loads: 160 MHz at CL = 10 pF, 130 MHz at CL = 15 pF.
Does SN74AUP1G74DCURG4 support partial power-down, and how is it implemented?
Yes, SN74AUP1G74DCURG4 supports partial power-down via its Ioff feature. When VCC = 0 V, the Ioff circuitry disables all outputs, limiting input/output leakage to ≤0.6 μA (per Section 6.6). This prevents damaging back-current flow when interfacing with powered subsystems - a requirement confirmed in TI's application report SBAA272.
Can SN74AUP1G74DCURG4 operate reliably with slow-rising clock signals from mechanical switches?
Yes, SN74AUP1G74DCURG4 includes Schmitt-trigger inputs on CLK, PRE, and CLR with 250 mV typical hysteresis at 3.3 V. This allows clean edge detection even with rise/fall times up to 200 ns/V (Section 6.3), making it ideal for direct push-button clocking without external debouncing circuitry.
What is the absolute maximum supply voltage rating for SN74AUP1G74DCURG4?
The absolute maximum VCC rating for SN74AUP1G74DCURG4 is 4.6 V, as specified in Section 6.1 "Absolute Maximum Ratings". Exceeding this voltage may cause permanent damage. Recommended operating range remains 0.8 V to 3.6 V per Section 6.3.
Is SN74AUP1G74DCURG4 pin-compatible with other members of the AUP family in VSSOP-8?
Yes, SN74AUP1G74DCURG4 shares identical VSSOP-8 (DCU) pinout and footprint with other AUP single-gate logic devices like SN74AUP1G08 and SN74AUP1G17. Pin functions (CLK, D, Q, Q, CLR, PRE, GND, VCC) are consistent across the family, enabling layout reuse in modular logic designs.
SN74AUP1G74DCURG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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-VSSOP
SN74AUP1G74DCURG4 FAQ
1.How can I place an order for SN74AUP1G74DCURG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G74DCURG4 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 SN74AUP1G74DCURG4 reliable?
The price and inventory of SN74AUP1G74DCURG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G74DCURG4 is usually 5 days.
3.What payment methods are accepted for SN74AUP1G74DCURG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP1G74DCURG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUP1G74DCURG4?
SN74AUP1G74DCURG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G74DCURG4 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 SN74AUP1G74DCURG4?
For technical support, including SN74AUP1G74DCURG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G74DCURG4 requirements.
6.How does Aetrix verify that SN74AUP1G74DCURG4 is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G74DCURG4 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 SN74AUP1G74DCURG4 meets industry standards.
7.What is the process for return or replacement of SN74AUP1G74DCURG4?
All SN74AUP1G74DCURG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G74DCURG4, 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 SN74AUP1G74DCURG4 part is unused and in its original packaging.
Return procedure for SN74AUP1G74DCURG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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