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Texas Instruments SN74AUP1G79YFPR
- Part No.:
- SN74AUP1G79YFPR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 6-XFBGA, DSBGA
- Datasheet:
-
SN74AUP1G79YFPR.pdf
- Description:
- IC FF D-TYPE SNGL 1BIT 6DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:625
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Product details
Overview
SN74AUP1G79YFPR from Texas Instruments is a single positive-edge-triggered D-type flip-flop in a 6-pin DSBGA package (1.16 mm × 0.76 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 Ioff support for partial power-down mode - used in low-power portable timing and data synchronization circuits such as rotary encoder direction detection.
For engineers reviewing the SN74AUP1G79YFPR datasheet, SN74AUP1G79YFPR pinout, SN74AUP1G79YFPR application, or SN74AUP1G79YFPR equivalent, key selection considerations include its ultra-low static/dynamic power (ICC ≤ 0.9 µA, Cpd = 3 pF), 3.6-V I/O tolerance for mixed-voltage interfacing, input hysteresis (250 mV typical), and validated performance down to –40°C for embedded sensor and interface applications.
Technical Context
The SN74AUP1G79YFPR implements a synchronous edge-triggered storage element where data at the D input transfers to Q only on the positive-going clock transition, independent of clock rise time due to voltage-level triggering. Its functional behavior is defined by setup/hold timing (e.g., tsu = 0.6 ns min at 3.3 V) and guaranteed metastability immunity under specified conditions.
It features balanced CMOS push-pull outputs capable of ±4 mA drive at 3 V, standard CMOS inputs with 1.5 pF typical capacitance and input hysteresis, clamp diodes for ESD robustness, and Ioff circuitry that disables outputs during power-down to prevent back-current - all optimized for battery-powered point-to-point signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 0.8 V to 3.6 V - enables direct interfacing with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Max Propagation Delay (tpd) | 4 ns at 3.3 V, CL = 15 pF - supports reliable 250 MHz operation in low-capacitance point-to-point links. |
| Static Current (ICC) | 0.9 µA maximum at TA = 85°C - extends battery life in always-on sensor interface and standby-mode circuits. |
| Dynamic Power Capacitance (Cpd) | 3 pF typical at 3.3 V - minimizes switching power consumption in high-frequency clocked applications. |
| Input Hysteresis (Vhys) | 250 mV typical at 3.3 V - rejects noise on slow-rising clock or data signals, improving reliability in noisy industrial environments. |
| Ioff Leakage | 0.6 µA maximum at TA = 85°C - ensures safe isolation during partial power-down in multi-rail systems. |
| ESD Rating | 2000 V HBM, 1000 V CDM - meets industrial-grade handling requirements without additional protection circuitry. |
Pinout & Package
SN74AUP1G79YFPR uses a 6-pin DSBGA (Die Size Ball Grid Array) package measuring 1.16 mm × 0.76 mm, with bottom-side ball terminations. This ultra-compact, leadless package is designed for space-constrained portable electronics and requires controlled reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | Clock Input | Positive-edge-sensitive trigger; voltage-level–based (not edge-rate–dependent); accepts 0–3.6 V swing with hysteresis. |
| D | Data Input | Asynchronous data source; must meet setup/hold timing relative to CLK↑; tolerant of overvoltage up to 4.6 V. |
| GND | Ground Reference | Primary return path for logic and I/O currents; must be low-impedance to maintain noise margin and timing integrity. |
| VCC | Power Supply | Core supply input (0.8–3.6 V); powers internal logic and output drivers; decoupling capacitor required near pin. |
| Q | Output | Non-inverting registered output; CMOS push-pull; drives loads up to ±4 mA; 3.6-V tolerant when VCC = 0 V (Ioff). |
| NC | No Connect | Unbonded pad; electrically isolated; no routing or connection required; may be left floating or tied to GND for mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Static Power | ICC ≤ 0.9 µA max at 85°C enables multi-year battery operation in always-on IoT endpoint nodes. |
| 3.6-V I/O Tolerance | Inputs accept up to 4.6 V regardless of VCC setting - simplifies mixed-voltage interconnect with legacy 5-V or 3.3-V peripherals. |
| Partial Power-Down (Ioff) | Outputs enter high-Z state when VCC = 0 V, blocking back-current and enabling hot-swap or rail-isolation in modular systems. |
| Input Hysteresis | 250 mV typical threshold separation improves noise immunity on slow-switching signals like mechanical encoder outputs. |
| NanoStar™ DSBGA Packaging | 1.16 mm × 0.76 mm footprint reduces PCB area by >50% vs. SOT-23 - critical for wearables and miniaturized medical sensors. |
Applications
| Rotary Quadrature Encoder Interface | Low-Power Sensor Data Latching |
|---|---|
Use Scenario: Detecting rotation direction of a mechanical knob in a handheld medical device or industrial HMI panel. IC Role / Device Role / Timing Role: SN74AUP1G79YFPR acts as a hardware direction decoder: CLK receives one encoder channel, D receives the other, and Q toggles on each valid edge to indicate clockwise/counterclockwise motion. Use Value: Eliminates need for MCU polling or firmware-based quadrature decoding - reduces system latency, CPU load, and power consumption. |
Use Scenario: Capturing analog-to-digital converter (ADC) output in an energy-harvesting environmental sensor node. IC Role / Device Role / Timing Role: SN74AUP1G79YFPR latches ADC data on a precise system clock edge, synchronizing asynchronous conversion completion to the main processor domain. Use Value: Prevents metastability in clock-domain crossing while consuming <1 µA static current - essential for sub-µW sleep-mode operation. |
| Portable Display Timing Control | USB-C Sideband Use (SBU) Signal Conditioning |
Use Scenario: Managing backlight enable sequencing or touch controller interrupt synchronization in an e-book reader. IC Role / Device Role / Timing Role: SN74AUP1G79YFPR provides glitch-free edge-aligned control pulses to LED drivers or capacitive touch ICs using a shared system clock. Use Value: Ensures deterministic timing alignment between display subsystems without adding jitter or skew from software delays. |
Use Scenario: Debouncing and synchronizing sideband use (SBU) signals in USB-C alternate mode implementations for docking stations. IC Role / Device Role / Timing Role: SN74AUP1G79YFPR registers SBU1/SBU2 configuration signals before they reach the USB PD controller or multiplexer logic. Use Value: Mitigates contact bounce and EMI-induced glitches during plug insertion/removal - improves USB-C connector reliability. |
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 |
|---|---|---|---|
| SN74LVC1G79DBVR | Higher ICC (10 µA typ), wider VCC range (1.65–5.5 V), no Ioff, larger SOT-23-5 package (2.9 × 1.6 mm). | Requires external level shifting for sub-1.65 V operation; unsuitable for partial power-down architectures. | Choose when interfacing with 5-V logic or needing higher drive strength; avoid for battery-critical or multi-rail isolation designs. |
| 74AHC1G79GW,125 | Higher propagation delay (7.5 ns max at 3.3 V), no Ioff, SC70-5 package (2.0 × 1.25 mm), lower ESD rating (1500 V HBM). | Lacks overvoltage-tolerant inputs and power-down safety - not recommended for mixed-voltage or hot-swap systems. | Acceptable for cost-sensitive, non-battery applications with relaxed timing and simpler power architecture. |
Compared with SN74LVC1G79DBVR and 74AHC1G79GW,125, the SN74AUP1G79YFPR delivers superior ultra-low-power operation, smaller footprint, and Ioff-enabled system-level power management - making it the preferred choice for space- and energy-constrained portable electronics.
Availability
SN74AUP1G79YFPR 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 SN74AUP1G79YFPR 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 SN74AUP1G79YFPR - was engineered specifically for battery-powered portable applications demanding ultra-low static/dynamic power, wide VCC scalability, and robust signal integrity across consumer, industrial, and medical end equipment.
FAQ
What is the minimum supply voltage for reliable operation of the SN74AUP1G79YFPR?
The SN74AUP1G79YFPR is fully specified from 0.8 V to 3.6 V. At 0.8 V, it supports clock frequencies up to 20 MHz with 4.8 ns minimum pulse width and 4.2 ns setup time. Below 0.8 V, functionality is not guaranteed - design margins require adherence to the recommended operating conditions table in the official TI datasheet SCES592I.
Does the SN74AUP1G79YFPR support true bidirectional data flow?
No, the SN74AUP1G79YFPR is a unidirectional D-type flip-flop with dedicated D (input), CLK (control), and Q (output) terminals. It has no tri-state or direction-control logic. For bidirectional bus applications, discrete level translators or dedicated bus switches should be used alongside the SN74AUP1G79YFPR.
Can the NC pin on the SN74AUP1G79YFPR be connected to ground?
Yes - the NC (No Connect) pin on SN74AUP1G79YFPR is electrically isolated and may be tied to GND for mechanical reinforcement or thermal relief. TI's datasheet confirms no electrical function; grounding it poses no risk to SN74AUP1G79YFPR operation or reliability.
How does the Ioff feature of the SN74AUP1G79YFPR protect system-level power integrity?
When VCC = 0 V, the Ioff circuitry in SN74AUP1G79YFPR places both input and output pins in high-impedance state, limiting leakage to ≤0.6 µA. This prevents back-current from live signal lines into a powered-down rail - protecting downstream components and enabling safe hot-swap or partial-system shutdown in multi-voltage platforms.
Is the SN74AUP1G79YFPR compatible with 5-V input signals?
No - while SN74AUP1G79YFPR inputs tolerate up to 4.6 V absolute maximum, sustained 5-V signals exceed this rating and risk permanent damage. For 5-V interface, use a level translator or select a 5-V–tolerant alternative like SN74LVC1G79DBVR, which supports 5.5-V inputs with VCC ≥ 1.65 V.
SN74AUP1G79YFPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUP
- Package/Case:
- 6-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Clock Frequency:
- 266 MHz
- Max Propagation Delay @ V, Max CL:
- 5.8ns @ 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:
- 6-DSBGA
SN74AUP1G79YFPR FAQ
1.How can I place an order for SN74AUP1G79YFPR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUP1G79YFPR 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 SN74AUP1G79YFPR reliable?
The price and inventory of SN74AUP1G79YFPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUP1G79YFPR is usually 5 days.
3.What payment methods are accepted for SN74AUP1G79YFPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUP1G79YFPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUP1G79YFPR?
SN74AUP1G79YFPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUP1G79YFPR 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 SN74AUP1G79YFPR?
For technical support, including SN74AUP1G79YFPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUP1G79YFPR requirements.
6.How does Aetrix verify that SN74AUP1G79YFPR is sourced from the original manufacturer or authorized distributors?
All SN74AUP1G79YFPR 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 SN74AUP1G79YFPR meets industry standards.
7.What is the process for return or replacement of SN74AUP1G79YFPR?
All SN74AUP1G79YFPR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUP1G79YFPR, 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 SN74AUP1G79YFPR part is unused and in its original packaging.
Return procedure for SN74AUP1G79YFPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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