My Inquiry
My Account
Texas Instruments SN74AUC2G79YZPR
- Part No.:
- SN74AUC2G79YZPR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 8-XFBGA, DSBGA
- Datasheet:
-
SN74AUC2G79YZPR.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 8DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,797
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74AUC2G79YZPR from Texas Instruments is a dual positive-edge-triggered D-type flip-flop in an 8-ball NanoFree™ DSBGA (YZP) package, operating from 0.8 V to 2.7 V with 1.9 ns max propagation delay at 1.8 V, ±8-mA output drive, and Ioff support for partial power-down mode - used in high-speed low-voltage data latching and clock-domain interfacing in portable and battery-powered systems.
For engineers reviewing the SN74AUC2G79YZPR datasheet, SN74AUC2G79YZPR pinout, SN74AUC2G79YZPR application, or SN74AUC2G79YZPR equivalent, key selection considerations include sub-1-V operability, 275-MHz max clock frequency at 2.5 V, Ioff-enabled isolation during power sequencing, and compatibility with mixed-mode 1.8-V core / 3.6-V I/O interfaces.
Technical Context
This device implements two independent edge-triggered D flip-flops sharing no internal logic; each responds solely to its dedicated CLK and D inputs with synchronous Q outputs. Clock triggering occurs at a voltage threshold-not dependent on slew rate-ensuring robust timing across supply voltages from 0.8 V to 2.7 V.
It features rail-to-rail input tolerance (–0.5 V to 3.6 V), 3.6-V I/O compatibility, and Ioff circuitry that disables outputs when VCC = 0 V, preventing backflow current during partial power-down. Latch-up performance exceeds 100 mA per JESD 78 Class II.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - enables operation in ultra-low-power domains including sub-1-V logic rails. |
| tpd (max) | 1.9 ns at 1.8 V - supports >250-MHz clock rates in high-speed serial interface buffering. |
| Ioff Support | Active at VCC = 0 V - allows safe hot-insertion and multi-rail power sequencing without external isolation. |
| Output Drive | ±8 mA at 1.8 V - sufficient to drive 50-Ω transmission lines or fan-out to ≥10 AUC-series loads. |
| Input Voltage Range | –0.5 V to 3.6 V - permits direct interfacing with 3.3-V or 2.5-V peripherals while powered from 1.8-V supply. |
| ICC (max) | 10 µA - minimizes quiescent power in always-on subsystems like real-time clocks or wake-up controllers. |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM - meets industrial-grade robustness requirements without external protection. |
Pinout & Package
SN74AUC2G79YZPR uses an 8-ball DSBGA (YZP) package measuring 1.5 mm × 1.5 mm × 0.5 mm max height, with solder bumps arranged in a 2×4 array (Ball A1 = Pin 1). The NanoFree™ construction eliminates traditional packaging - the silicon die itself forms the mechanical interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | GND | Ground reference for both flip-flops; must be low-impedance to minimize ground bounce in high-speed switching. |
| A2 | 2CLK | Clock input for second flip-flop; edge-triggered on rising transition; accepts slow or fast edges due to voltage-threshold detection. |
| A3 | 2D | Data input for second flip-flop; sampled at 2CLK↑; requires setup/hold times as low as 0.5 ns at 1.8 V. |
| A4 | 2Q | True output of second flip-flop; actively driven high/low; supports bus-hold or termination if externally configured. |
| B1 | 1CLK | Clock input for first flip-flop; functionally identical to 2CLK but electrically isolated; shares no internal routing. |
| B2 | 1D | Data input for first flip-flop; independent timing path; compatible with asynchronous control signals when synchronized via CLK. |
| B3 | 1Q | True output of first flip-flop; non-inverting; capable of driving capacitive loads up to 15 pF within specified tpd. |
| B4 | VCC | Core supply pin; powers both flip-flops; requires local 100-nF ceramic decoupling placed ≤2 mm from ball. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ DSBGA (YZP) | 1.5 mm × 1.5 mm footprint - reduces PCB area by >70% vs. SSOP/DCT packages, enabling ultra-compact portable designs. |
| Sub-1-V Operation | Functional at 0.8 V VCC - supports energy harvesting and coin-cell-powered applications where supply drops below 1.0 V. |
| Ioff Partial Power-Down | Outputs enter high-Z state when VCC = 0 V - eliminates need for external switches or level shifters in multi-supply systems. |
| 3.6-V I/O Tolerance | Inputs accept 3.6-V signals while VCC = 1.8 V - enables direct connection to legacy 3.3-V buses without level translation. |
| Low Input Capacitance | Ci = 2.5 pF - minimizes loading on preceding drivers and preserves signal integrity in high-frequency clock distribution. |
| Latch-Up Immunity | >100 mA per JESD 78 Class II - ensures reliability in noisy industrial environments without external current limiting. |
Applications
| Portable Data Acquisition | Low-Power Sensor Interface |
|---|---|
Use Scenario: Sampling analog sensor outputs via SAR ADC, then latching results before MCU readout under intermittent power. IC Role / Device Role / Timing Role: Dual DFF synchronizes asynchronous ADC EOC pulses and holds conversion data stable during low-power CPU wake cycles. Use Value: 10-µA ICC and Ioff allow continuous ADC readiness with zero backfeed during MCU sleep, extending battery life in wearables. |
Use Scenario: Interfacing MEMS accelerometers with 3.3-V digital outputs to a 1.8-V microcontroller I/O bank. IC Role / Device Role / Timing Role: Level-shifting and clock-domain crossing buffer: accepts 3.3-V sensor data, retimes it to 1.8-V system clock. Use Value: 3.6-V tolerant inputs eliminate discrete level shifters; 1.9-ns tpd preserves timing margin in 50-MHz SPI data capture. |
| High-Speed Serial Link Buffer | Configurable Logic State Retention |
Use Scenario: Isolating and retiming LVDS or RSDS receiver outputs before feeding into FPGA deserializers. IC Role / Device Role / Timing Role: Dual-edge-aligned latch aligning incoming serialized bits to local clock domain while suppressing jitter-induced metastability. Use Value: 275-MHz fmax at 2.5 V supports 1-Gbps+ links; low tpd variation (<0.3 ns) ensures deterministic setup/hold margins. |
Use Scenario: Preserving configuration register states during brownout events in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile shadow latch holding critical control bits; updated only on valid write strobes, retained during VCC dip. Use Value: Sub-1-V operation down to 0.8 V maintains state through 200-ms dips; Ioff prevents corruption from auxiliary 3.3-V rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AUC2G74YZPR | Dual D-type flip-flop with complementary Q and Q̅ outputs per stage; same YZP package and 0.8–2.7-V range. | Required when inverted logic outputs needed for differential signaling or active-low enable paths. | Select SN74AUC2G74YZPR only if Q̅ availability is mandatory; SN74AUC2G79YZPR saves board space when only true outputs are used. |
| SN74LVC2G79DCTR | SSOP-8 (DCT) package; 1.65–5.5-V VCC range; 3.7-ns tpd at 3.3 V; no sub-1-V operation or Ioff support. | Suitable for industrial boards with larger pitch constraints and higher supply voltages; lacks partial power-down capability. | Choose SN74LVC2G79DCTR for cost-sensitive 3.3-V systems where PCB area and ultra-low-VCC operation are not critical. |
Compared with SN74AUC2G79YZPR, SN74AUC2G74YZPR adds inverted outputs at identical speed and package, while SN74LVC2G79DCTR trades nanosecond-level timing and Ioff for broader voltage range and legacy package compatibility - making SN74AUC2G79YZPR optimal for space-constrained, battery-operated, multi-rail systems requiring precise low-voltage timing control.
Availability
SN74AUC2G79YZPR is available at Aetrix Electronics and suitable for portable data acquisition, low-power sensor interface, high-speed serial link buffering, and configurable logic state retention requiring stable component supply across automotive infotainment, medical wearables, and industrial IoT edge nodes.
Supply support for SN74AUC2G79YZPR 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 high-reliability ICs, with decades of expertise in low-power logic and advanced packaging technologies.
SN74AUC2G79YZPR belongs to TI's AUC ultra-high-speed CMOS logic family, designed specifically for sub-1.8-V battery-powered applications demanding minimal propagation delay, ultra-low static current, and robust mixed-signal interoperability.
FAQ
What is the minimum operating voltage for SN74AUC2G79YZPR?
The SN74AUC2G79YZPR operates down to 0.8 V VCC, verified across –40°C to 85°C. At this voltage, it maintains functional timing with tpd ≤5 ns and fmax ≥50 MHz. This sub-1-V capability is explicitly characterized in the datasheet's Recommended Operating Conditions table and enables use in energy-harvesting and coin-cell-powered systems where supply droop is common. The SN74AUC2G79YZPR retains full logic functionality without reset or initialization loss at 0.8 V.
Does SN74AUC2G79YZPR support hot swapping or partial power-down?
Yes, SN74AUC2G79YZPR includes Ioff circuitry that places all outputs in high-impedance state when VCC = 0 V, preventing damaging current backflow from live I/O traces into the unpowered device. This is confirmed in the Features section and Electrical Characteristics table (Ioff ≤ ±10 µA at VI/VO = 2.7 V). The SN74AUC2G79YZPR is qualified for partial power-down operation per JEDEC JESD78 Class II latch-up immunity, making it suitable for hot-plug interfaces and multi-rail power sequencing.
What is the pin 1 identifier for SN74AUC2G79YZPR in the YZP package?
In the SN74AUC2G79YZPR DSBGA (YZP) package, pin 1 is designated by a distinct solder-bump composition marker: a solid circle (•) indicates Pb-free bumps, while "1" denotes SnPb. This marking appears adjacent to Ball A1 on the bottom-side view per the mechanical drawing SCES536C. The physical layout is a 2×4 ball array with A1 at top-left (row A, column 1), and the SN74AUC2G79YZPR top-side marking "URN" is laser-etched on the silicon die surface, not the package substrate.
Can SN74AUC2G79YZPR interface directly with 3.3-V logic?
Yes, SN74AUC2G79YZPR inputs tolerate up to 3.6 V regardless of VCC level, allowing direct connection to 3.3-V peripherals while powered from 1.8-V or lower supplies. This is specified in the Absolute Maximum Ratings (VI = –0.5 V to 3.6 V) and confirmed in the Recommended Operating Conditions table. The SN74AUC2G79YZPR outputs swing rail-to-rail (0 V to VCC), so external level shifting is required only if 3.3-V high-level recognition is needed on the receiving side - not for driving the SN74AUC2G79YZPR itself.
What is the thermal resistance θJA for SN74AUC2G79YZPR?
The junction-to-ambient thermal resistance (θJA) for SN74AUC2G79YZPR in its YZP package is 102°C/W, as published in the Absolute Maximum Ratings table. This value assumes standard JEDEC test conditions (JESD 51-7) with a 1-in² 2-oz copper pad and no airflow. The SN74AUC2G79YZPR's low θJA - significantly better than DCT (220°C/W) or DCU (227°C/W) variants - reflects the superior thermal conduction of the die-as-package NanoFree™ construction, enabling higher sustained clock frequencies in thermally constrained layouts.
SN74AUC2G79YZPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- 8-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 275 MHz
- Max Propagation Delay @ V, Max CL:
- 1.8ns @ 2.5V, 30pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 9mA, 9mA
- Voltage - Supply:
- 0.8V ~ 2.7V
- Current - Quiescent (Iq):
- 10 µA
- Input Capacitance:
- 2.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DSBGA
SN74AUC2G79YZPR FAQ
1.How can I place an order for SN74AUC2G79YZPR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC2G79YZPR 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 SN74AUC2G79YZPR reliable?
The price and inventory of SN74AUC2G79YZPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC2G79YZPR is usually 5 days.
3.What payment methods are accepted for SN74AUC2G79YZPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC2G79YZPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUC2G79YZPR?
SN74AUC2G79YZPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC2G79YZPR 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 SN74AUC2G79YZPR?
For technical support, including SN74AUC2G79YZPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC2G79YZPR requirements.
6.How does Aetrix verify that SN74AUC2G79YZPR is sourced from the original manufacturer or authorized distributors?
All SN74AUC2G79YZPR 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 SN74AUC2G79YZPR meets industry standards.
7.What is the process for return or replacement of SN74AUC2G79YZPR?
All SN74AUC2G79YZPR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC2G79YZPR, 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 SN74AUC2G79YZPR part is unused and in its original packaging.
Return procedure for SN74AUC2G79YZPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74AUC2G79YZPR 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…
