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Texas Instruments 8400101SA
- Part No.:
- 8400101SA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
8400101SA.pdf
- Description:
- SN54ALS574B OCTAL D-TYPE EDGE-TR
- Quantity:
- Payment:
- Shipping:
Inventory:2,217
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Product details
Overview
8400101SA from Texas Instruments is a military-grade octal D-type edge-triggered flip-flop with 3-state noninverting outputs, designed for bus driving in high-reliability systems. It operates over –55°C to 125°C, features synchronous data capture on CLK rising edge, 35 MHz max clock frequency (ALS variant), and supports direct bus line interfacing with buffered control inputs.
For engineers reviewing the 8400101SA datasheet, 8400101SA pinout, 8400101SA application, or 8400101SA equivalent, this device serves as a bus-structured register for I/O port expansion, bidirectional data buffering, and working register implementation in avionics, defense computing, and ruggedized industrial controllers where temperature resilience and TTL-compatible timing are critical.
Technical Context
The 8400101SA implements eight independent D-type latches triggered by the low-to-high transition of CLK, with output-enable (OE) decoupled from internal state retention - enabling data hold during high-impedance output mode. Its bus-structured pinout minimizes trace skew and simplifies PCB layout for parallel data paths.
As the ceramic flatpack (CFP/W) packaged variant of SN54ALS574B, it uses ALS logic family characteristics: lower power than AS, higher speed than standard LS, and guaranteed operation across full military temperature range without derating. No synchronous clear function is present - distinguishing it from SN54AS575/SN74ALS575A variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ALS (Advanced Low-Power Schottky) - balances speed (35 MHz) and power (17–28 mA ICC) for military-grade reliability. |
| Operating Temperature | –55°C to 125°C - qualified for airborne, missile, and space-qualified subsystems per MIL-PRF-38535. |
| Max Clock Frequency | 35 MHz at VCC = 4.5–5.5 V - enables real-time data capture in 28.6 ns clock period systems. |
| Output Drive | IOL = 24 mA / IOH = –2.6 mA - directly drives terminated TTL/CMOS buses without external buffers. |
| Propagation Delay | tPLH/tPHL ≤ 14 ns - ensures deterministic setup/hold timing margins in synchronous bus architectures. |
| Supply Voltage | VCC = 4.5 V to 5.5 V - compatible with regulated 5 V military power rails; absolute max 7 V. |
| Package Type | Ceramic Flatpack (CFP/W), 20-pin - hermetically sealed, low-inductance leads, suitable for high-vibration environments. |
Pinout & Package
Ceramic Flatpack (CFP/W), 20-pin, 0.300-inch body width, hermetic ceramic package with solderable Kovar leads. Pin 1 identified by notch or dot; lead finish is gold-plated for wire bonding compatibility and corrosion resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low 3-state control; does not affect internal flip-flop state - allows data retention while outputs float. |
| 2–9 | 1D–8D | Data inputs for each of eight D-type flip-flops; sampled on CLK↑ transition. |
| 10 | GND | Ground reference for all logic and output stages; requires low-impedance connection to minimize noise coupling. |
| 11 | VCC | +5 V supply; bypassing with 0.1 µF ceramic capacitor near pin essential for stable ALS switching. |
| 12–19 | 1Q–8Q | Noninverting 3-state outputs; high-impedance when OE = HIGH, otherwise mirror D inputs after CLK↑. |
| 20 | CLK | Clock input; edge-triggered on rising edge only; requires clean, monotonic transition to avoid metastability. |
Key Features
| Feature | Design Value |
|---|---|
| Bus-structured pinout | Alternating D/Q pins (e.g., 1D–1Q–2D–2Q…) reduce crosstalk and simplify layer routing in dense backplane designs. |
| Buffered control inputs | OE and CLK inputs include Schmitt-trigger-like hysteresis and drive strength sufficient to fan out to ≥10 similar loads. |
| 3-state noninverting outputs | Outputs retain polarity while enabling bidirectional bus arbitration - eliminates need for external inverters in read/write paths. |
| Military temperature qualification | Tested and screened per MIL-STD-883 Method 1010 - guarantees parametric stability and latch-up immunity across full –55°C to 125°C range. |
| No internal clear function | Dedicated CLR pin absent - simplifies control logic in applications where reset is handled externally or via system-level initialization. |
Applications
| Avionics Data Bus Interface | Tactical Radio Baseband Buffering |
|---|---|
|
Use Scenario: Interfacing ADC/DAC channels to a MIL-STD-1553B remote terminal controller with shared data bus. IC Role / Device Role / Timing Role: Acts as synchronized input latch and output driver for 8-bit parallel sensor/actuator data, aligned to system clock domain. Use Value: Enables deterministic sampling at up to 35 MHz while maintaining bus isolation during idle cycles - reducing EMI and contention risk. |
Use Scenario: Buffering digital audio and control signals between FPGA baseband processor and RF transceiver ASIC in manpack radios. IC Role / Device Role / Timing Role: Provides glitch-free handoff of configuration registers and IQ sample streams using OE-gated 3-state outputs. Use Value: Eliminates bus contention during mode switching; CFP package withstands thermal cycling in field-deployed units. |
| Missile Guidance System Register File | Ruggedized Industrial PLC I/O Expansion |
|
Use Scenario: Storing real-time telemetry words from inertial measurement units before transmission via serial link. IC Role / Device Role / Timing Role: Functions as working register bank with simultaneous write-on-CLK↑ and read-on-OE control. Use Value: Supports lock-step dual-CPU architectures via synchronized data capture - meeting DO-254 Level A timing assurance requirements. |
Use Scenario: Expanding discrete I/O capacity on a DIN-rail mounted PLC CPU module operating in oil & gas substations. IC Role / Device Role / Timing Role: Serves as isolated input latch and output driver for 8-channel 24 VDC sensor/actuator interface. Use Value: Hermetic CFP package prevents moisture ingress in IP66-rated enclosures; wide temperature range avoids cold-start failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type bus register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54AS574J | Faster AS family (100 MHz fmax), higher drive (IOL = 48 mA), but higher ICC (85–134 mA) and no ALS power efficiency. | Better suited for high-speed test equipment; less ideal for thermally constrained or battery-backed systems. | Select when speed >35 MHz is mandatory and power budget allows ~4× higher quiescent current. |
| 8400101RA | Same SN54ALS574B die in ceramic DIP (CDIP/J) package - identical electrical specs, larger footprint, through-hole mounting. | Preferred for legacy board rework or prototyping where socketing or manual assembly is required. | Choose for repair, retrofit, or low-volume hand-soldered assemblies where CFP reflow is unavailable. |
Compared with 8400101SA, SNJ54AS574J trades power efficiency for raw speed, while 8400101RA retains identical functionality in a through-hole form factor - making 8400101SA the optimal choice for new surface-mount military designs requiring hermetic reliability and thermal robustness.
Availability
8400101SA is available at Aetrix Electronics and suitable for avionics data interfaces, tactical radio baseband buffering, missile guidance register files, and ruggedized industrial PLC I/O expansion requiring stable component supply under extended temperature and long lifecycle commitments.
Supply support for 8400101SA 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 with over 60 years of analog and logic innovation, serving aerospace, defense, industrial, and automotive markets with high-reliability components.
The SN54ALS574B product line delivers military-qualified octal D-type registers optimized for deterministic bus interfacing in safety-critical systems where temperature resilience, radiation tolerance, and long-term parametric stability are mandatory.
FAQ
What is the maximum clock frequency supported by the 8400101SA?
The 8400101SA supports a maximum clock frequency of 35 MHz under recommended operating conditions (VCC = 4.5 V to 5.5 V, TA = –55°C to 125°C). This value is specified in the SDAS165B datasheet for the SN54ALS574B variant and confirmed for the 8400101SA CFP/W package. Timing margins remain valid across the full military temperature range without derating.
Does the 8400101SA include a synchronous clear (CLR) input?
No, the 8400101SA does not include a synchronous clear input. It is the SN54ALS574B variant, which lacks the CLR pin present in SN54AS575 and SN74ALS575A. The 8400101SA has 20 pins and implements only CLK, OE, eight D inputs, and eight Q outputs - consistent with the pinout shown for SN54ALS574B in the SDAS165B datasheet.
What package type and material construction does the 8400101SA use?
The 8400101SA uses a ceramic flatpack (CFP/W) package: 20-pin, hermetically sealed ceramic body with Kovar leads, gold-plated finish, and 0.300-inch width. This construction meets MIL-STD-883 requirements for moisture resistance, thermal cycling endurance, and mechanical shock survivability in defense and aerospace deployments.
Is the 8400101SA RoHS compliant?
The 8400101SA is not RoHS compliant. As a military-grade CFP/W device manufactured to MIL-PRF-38535, it uses leaded solder finishes and materials exempt from RoHS restrictions under EU Directive 2011/65/EU Annex III. TI's packaging addendum confirms "Call TI" for lead/ball finish and "N/A for Pkg Type" for MSL - indicating non-standard commercial packaging.
How does the 8400101SA differ from the commercial SN74ALS574B variants?
The 8400101SA is the SN54ALS574B military-spec version: characterized from –55°C to 125°C, screened per MIL-STD-883, and packaged in hermetic CFP/W. In contrast, SN74ALS574B (e.g., SN74ALS574BDW) is commercial-grade (0°C to 70°C), uses plastic SOIC or PDIP packages, and lacks radiation hardness or extended temperature validation - making 8400101SA unsuitable for non-military applications requiring cost-sensitive volume production.
8400101SA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Type:
- -
- Output Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Trigger Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Iq):
- -
- Input Capacitance:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
8400101SA FAQ
1.How can I place an order for 8400101SA through Aetrix?
Please submit a Request for Quotation (RFQ) for 8400101SA 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 8400101SA reliable?
The price and inventory of 8400101SA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 8400101SA is usually 5 days.
3.What payment methods are accepted for 8400101SA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 8400101SA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 8400101SA?
8400101SA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 8400101SA 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 8400101SA?
For technical support, including 8400101SA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 8400101SA requirements.
6.How does Aetrix verify that 8400101SA is sourced from the original manufacturer or authorized distributors?
All 8400101SA 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 8400101SA meets industry standards.
7.What is the process for return or replacement of 8400101SA?
All 8400101SA units undergo pre-shipment inspection (PSI). If there is an issue with 8400101SA, 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 8400101SA part is unused and in its original packaging.
Return procedure for 8400101SA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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