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Texas Instruments 74AC11074NSRG4
- Part No.:
- 74AC11074NSRG4
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
74AC11074NSRG4.pdf
- Description:
- IC FF D-TYPE DUAL 1BIT 14SOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,475
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Product details
Overview
74AC11074NSRG4 from Texas Instruments is a dual positive-edge-triggered D-type flip-flop with independent asynchronous preset and clear inputs, operating from –40°C to 85°C at VCC = 3–5.5 V, delivering 125 MHz max clock frequency at 5 V and 100 MHz at 3.3 V, used in synchronous logic control and state-holding circuits in industrial control panels.
For engineers reviewing the 74AC11074NSRG4 datasheet, 74AC11074NSRG4 pinout, 74AC11074NSRG4 application, or 74AC11074NSRG4 equivalent, key selection factors include guaranteed setup/hold timing (tsu = 3.5 ns, th = 0 ns at 5 V), rail-to-rail output drive (±24 mA), latch-up immunity (500 mA at 125°C), and EPIC™ 1-µm CMOS process for noise resilience.
Technical Context
This device implements two independent edge-triggered storage elements with fully asynchronous active-low PRE and CLR inputs that override clocked data transfer. Each flip-flop latches D-input data on the low-to-high transition of CLK while maintaining Q/Q complement outputs.
It uses Texas Instruments' EPIC™ (Enhanced-Performance Implanted CMOS) 1-µm process, enabling high-speed operation with minimized switching noise via center-pin VCC/GND configuration. Absolute maximum ratings support VCC up to 7 V and operation across –65°C to 150°C storage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | Advanced CMOS (AC), TTL-compatible input thresholds |
| Max Clock Frequency | 125 MHz at VCC = 5 V - supports high-speed synchronous control loops |
| Propagation Delay (tPLH/tPHL) | 5.4–7.5 ns at 5 V - ensures tight timing margins in pipeline stages |
| Output Drive Strength | ±24 mA at VCC = 5 V - directly drives multiple TTL loads or small PCB traces |
| Supply Voltage Range | 3 V to 5.5 V - interoperable with both 3.3 V and 5 V logic domains |
| Operating Temperature | –40°C to +85°C - qualified for industrial ambient environments |
| Latch-Up Immunity | 500 mA typical at 125°C - robust against transient current faults |
Pinout & Package
74AC11074NSRG4 is supplied in a 14-pin plastic small-outline (SOIC) package (N package), with center-pin VCC (Pin 14) and GND (Pin 7) arrangement to reduce high-speed switching noise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1PRE, 2PRE | Asynchronous preset input (active-low) | Forces Q = H / Q̅ = L independently of clock; overrides D input |
| 1CLR, 2CLR | Asynchronous clear input (active-low) | Forces Q = L / Q̅ = H independently of clock; overrides D input |
| 1CLK, 2CLK | Clock input (positive-edge sensitive) | Triggers data capture on low-to-high transition; voltage-level triggered |
| 1D, 2D | Data input | Samples and transfers to Q on next valid clock edge if PRE/CLR inactive |
| 1Q, 2Q | True output | Complementary to Q̅; fan-out capable of driving ≥10 TTL loads |
| 1Q̅, 2Q̅ | Inverted output | Complementary to Q; enables direct use in differential logic paths |
| VCC (Pin 14) | Positive supply | Center-pin placement reduces simultaneous switching noise in high-frequency operation |
| GND (Pin 7) | Ground reference | Paired with VCC in center-pin layout to minimize ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| EPIC™ 1-µm CMOS process | Enables 125 MHz operation with low power and high noise immunity |
| Center-pin VCC/GND configuration | Reduces simultaneous switching output noise by optimizing return path inductance |
| Asynchronous PRE/CLR with priority | Guarantees immediate state override without waiting for clock edge |
| Rail-to-rail output swing | VOH ≥ 4.94 V / VOL ≤ 0.44 V at 5 V - ensures full logic-level compatibility |
| Low input capacitance (3.5 pF) | Minimizes loading on preceding drivers and preserves signal integrity |
Applications
| Industrial PLC I/O Modules | Digital Test Equipment Control |
|---|---|
Use Scenario: Latching sensor status signals in programmable logic controller backplanes under noisy factory conditions. IC Role / Device Role / Timing Role: Dual D-flip-flop provides synchronized sampling of discrete input states with independent reset for fault recovery. Use Value: Asynchronous clear allows immediate channel reset during error detection without halting main clock domain. |
Use Scenario: Capturing pass/fail results from automated test pattern generators before serial upload to host. IC Role / Device Role / Timing Role: Edge-triggered storage holds measurement outcomes until system readout cycle begins. Use Value: 125 MHz max clock rate supports high-throughput test sequencing with deterministic latency. |
| Communications Frame Synchronizers | Legacy Bus Interface Glue Logic |
Use Scenario: Aligning incoming serial frame boundaries to local clock domain in T1/E1 line interface cards. IC Role / Device Role / Timing Role: Preset/clear-controlled flip-flops detect start-of-frame markers and stabilize sync state. Use Value: Independent PRE/CLR inputs enable rapid re-synchronization after loss-of-signal events. |
Use Scenario: Interfacing 8-bit microcontrollers to parallel peripherals requiring handshake timing (e.g., printers, displays). IC Role / Device Role / Timing Role: Stores control bits (e.g., strobe, busy) between CPU write and peripheral response cycles. Use Value: ±24 mA drive strength eliminates need for external buffers when driving legacy TTL bus loads. |
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 |
|---|---|---|---|
| SN74AC74N | Same AC family, but single-package dual DFF lacks separate PRE/CLR per section; shared clear/preset pins | Less flexible for independent channel reset; requires external gating for per-channel control | Select when board space is constrained and channel independence is not required |
| 74ACT11074N | TTL-compatible output drive (±24 mA), identical pinout and function, but higher ICC (max 40 µA vs. 4 µA typical for AC) | Better drive into heavy TTL loads; slightly higher static power in battery-sensitive designs | Select when interfacing legacy 5 V TTL systems demanding strict VOH/VOL compliance |
Compared with SN74AC74N and 74ACT11074N, the 74AC11074NSRG4 uniquely provides per-section asynchronous preset and clear with center-pin SOIC layout-critical for noise-sensitive industrial control where independent channel recovery and EMI reduction are design requirements.
Availability
74AC11074NSRG4 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, digital test equipment control, communications frame synchronizers, and legacy bus interface glue logic requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74AC11074NSRG4 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions with global manufacturing and quality certification.
The 74AC logic family was engineered for high-speed, low-power, TTL-compatible operation in industrial and telecom infrastructure-prioritizing noise immunity, wide supply tolerance, and robust latch-up performance.
FAQ
What is the maximum clock frequency supported by the 74AC11074NSRG4?
The 74AC11074NSRG4 supports a maximum clock frequency of 125 MHz at VCC = 5 V and 100 MHz at VCC = 3.3 V, as specified in the switching characteristics table of the SCAS499A datasheet. These values are measured under recommended operating conditions with CL = 50 pF and apply to both flip-flop sections independently. The 74AC11074NSRG4 achieves this performance using TI's EPIC™ 1-µm CMOS process and center-pin power/ground layout.
Does the 74AC11074NSRG4 have separate preset and clear inputs for each flip-flop?
Yes, the 74AC11074NSRG4 provides fully independent active-low preset (1PRE, 2PRE) and clear (1CLR, 2CLR) inputs for each of its two D-type flip-flops. This allows asynchronous, section-specific state initialization without affecting the other flip-flop-unlike variants such as SN74AC74N, which share preset/clear signals. Pin mapping confirms discrete terminals for all four control inputs on the 14-pin SOIC package.
What package type is used for the 74AC11074NSRG4?
The 74AC11074NSRG4 uses a 14-pin plastic small-outline integrated circuit (SOIC) package designated as "N" per TI's packaging nomenclature. It features center-pin VCC (Pin 14) and GND (Pin 7), a layout specifically designed to minimize high-speed switching noise. This differs from the "D" (SOIC) and "PW" (TSSOP) variants, which share functional equivalence but differ in thermal and mechanical specifications.
Is the 74AC11074NSRG4 compatible with 3.3 V logic systems?
Yes, the 74AC11074NSRG4 operates over a supply range of 3 V to 5.5 V and is fully compatible with 3.3 V logic systems. At VCC = 3.3 V, it delivers 100 MHz max clock frequency, VIH = 2.1 V (min), VIL = 0.9 V (max), and maintains ±12 mA output drive. Its AC-family input thresholds and rail-to-rail outputs ensure reliable interfacing with both 3.3 V and 5 V domains without level-shifting circuitry.
What is the latch-up immunity rating for the 74AC11074NSRG4?
The 74AC11074NSRG4 has a typical latch-up immunity of 500 mA at 125°C, as confirmed in the "Features" section of the SCAS499A datasheet. This specification reflects robustness against parasitic SCR activation under transient overcurrent conditions-a critical reliability metric for industrial environments. The EPIC™ process and layout contribute directly to this high immunity level, distinguishing it from standard CMOS logic devices.
74AC11074NSRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AC
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Set(Preset) and Reset
- Type:
- D-Type
- Output Type:
- Complementary
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Clock Frequency:
- 150 MHz
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 3V ~ 5.5V
- Current - Quiescent (Iq):
- 4 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
74AC11074NSRG4 FAQ
1.How can I place an order for 74AC11074NSRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AC11074NSRG4 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 74AC11074NSRG4 reliable?
The price and inventory of 74AC11074NSRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AC11074NSRG4 is usually 5 days.
3.What payment methods are accepted for 74AC11074NSRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AC11074NSRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AC11074NSRG4?
74AC11074NSRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AC11074NSRG4 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 74AC11074NSRG4?
For technical support, including 74AC11074NSRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AC11074NSRG4 requirements.
6.How does Aetrix verify that 74AC11074NSRG4 is sourced from the original manufacturer or authorized distributors?
All 74AC11074NSRG4 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 74AC11074NSRG4 meets industry standards.
7.What is the process for return or replacement of 74AC11074NSRG4?
All 74AC11074NSRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74AC11074NSRG4, 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 74AC11074NSRG4 part is unused and in its original packaging.
Return procedure for 74AC11074NSRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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