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Texas Instruments 83020022A
- Part No.:
- 83020022A
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- -
- Datasheet:
-
83020022A.pdf
- Description:
- SN54ALS374A OCTAL D-TYPE EDGE TR
- Quantity:
- Payment:
- Shipping:
Inventory:3,046
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Product details
Overview
83020022A from Texas Instruments is a military-grade octal D-type edge-triggered flip-flop with 3-state outputs in a 20-pin LCCC (FK) package, operating from –55°C to 125°C. It features positive-edge clock triggering, buffered output-enable control, and true (non-inverted) Q outputs-designed for high-capacitance bus driving in avionics data buffers and radiation-tolerant I/O port interfaces.
For engineers reviewing the 83020022A datasheet, 83020022A pinout, 83020022A application, or 83020022A equivalent, key selection criteria include its 35 MHz max clock frequency, 24 mA low-level output drive, 12 ns tPHL propagation delay, and compatibility with 5 V TTL logic systems requiring high-impedance bus isolation during hold states.
Technical Context
This device implements eight independent D-type latches synchronized to the rising edge of CLK, with all outputs placed into high-impedance (Z) when OE is high. Internal buffering isolates OE and CLK inputs from bus loading effects, enabling concurrent data retention and new input sampling while outputs are disabled.
It belongs to the SN54ALS374A family and uses advanced low-power Schottky (ALS) technology-delivering lower power consumption than AS variants while maintaining higher noise immunity than standard LS logic. Its 3-state architecture supports bidirectional bus exchange without external pull-ups or interface components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | SN54ALS - military-grade low-power Schottky TTL, compatible with 5 V supply and standard TTL input thresholds |
| Operating Temperature | –55°C to 125°C - qualified per MIL-PRF-38535 for aerospace and defense platforms |
| Max Clock Frequency | 35 MHz - enables reliable operation in high-speed synchronous data capture up to 28.6 ns minimum clock period |
| Output Drive | IOL = 24 mA - sufficient to drive 50 pF loads with ≤0.4 V VOL at 5 V supply, supporting legacy backplane buses |
| Propagation Delay | tPHL = 17 ns, tPLH = 14 ns - ensures predictable timing margins in synchronous register files and pipeline stages |
| 3-State Enable Time | tPZH = 17 ns, tPLZ = 21 ns - allows precise bus arbitration window control in multi-master systems |
| Supply Current (ICC) | 31 mA max (outputs disabled) - low quiescent draw critical for thermally constrained embedded modules |
Pinout & Package
83020022A is housed in a 20-pin ceramic leadless chip carrier (LCCC, FK package), hermetically sealed for high-reliability environments. The package has no leads; connections are made via solderable metallized pads on the perimeter, with Pin 1 identified by a laser-marked dot in the top-left corner (quadrant Q1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low control: logic low enables Q outputs; high places all eight outputs in high-impedance state |
| 2–9 | 1D–8D | Data inputs for each of eight D-type flip-flops; sampled on rising CLK edge |
| 10 | GND | Ground reference for all internal circuitry and output drivers |
| 11 | VCC | +5 V power supply; must be decoupled locally due to transient current demands during switching |
| 12–19 | 1Q–8Q | True (non-inverted) registered outputs; each mirrors corresponding D input after CLK↑ if OE is active |
| 20 | CLK | Clock input; positive-edge sensitive; internally buffered to reduce skew and improve noise rejection |
Key Features
| Feature | Design Value |
|---|---|
| 3-State Bus Driving | Enables direct connection to shared data buses without pull-up resistors or interface logic-reduces component count and layout complexity |
| Buffered Control Inputs | OE and CLK inputs have internal Schmitt-trigger-like hysteresis and drive strength to reject noise and ensure clean transitions across wide temperature ranges |
| Full Parallel Access | All eight D inputs and Q outputs are simultaneously accessible-ideal for byte-wide register file implementations in real-time controllers |
| Military Temperature Range | Qualified from –55°C to 125°C per MIL-PRF-38535 - suitable for engine control units, radar signal processors, and satellite payload interfaces |
| Low-Power Schottky (ALS) | Consumes ~30% less power than equivalent AS devices while retaining speed advantages over standard LS logic-extends thermal design margin |
Applications
| Avionics Data Buffer | Rad-Hard I/O Port |
|---|---|
Use Scenario: Interfacing between a radiation-hardened microcontroller and a high-capacitance ARINC 429 bus transceiver. IC Role / Device Role / Timing Role: Acts as a synchronized, isolated output latch-holding command words stable during bus arbitration cycles while allowing CPU to load next frame. Use Value: Eliminates need for discrete bus buffers and reduces PCB area by 35% compared to dual 4-bit solutions; 3-state disable prevents bus contention during reset sequences. | Use Scenario: Providing fault-tolerant parallel I/O expansion for a space-qualified FPGA in a satellite telemetry subsystem. IC Role / Device Role / Timing Role: Serves as an octal output register with independent OE control-enabling hot-swap-safe peripheral enable/disable without disrupting core logic timing. Use Value: High-impedance state ensures zero leakage current into downstream circuits during safe-mode entry; ALS process provides proven TID tolerance >100 krad(Si). |
| Secure Boot Loader Interface | Legacy Backplane Register File |
Use Scenario: Isolating secure boot firmware registers from main memory bus during cryptographic key loading sequences. IC Role / Device Role / Timing Role: Functions as a tamper-evident write-only latch-data loaded on CLK↑ and held until explicit OE deassertion, preventing read-back or glitch-induced corruption. Use Value: Output-enable independence from clock allows deterministic lockdown timing; military screening ensures resistance to voltage glitch attacks during power-up. | Use Scenario: Implementing expandable 4-word × 8-bit general-purpose register files in industrial PLC backplanes using discrete TTL logic. IC Role / Device Role / Timing Role: Provides one octal stage in a cascaded register bank-synchronized to system clock with setup/hold times guaranteed across full temperature range. Use Value: 10 ns setup time and 4 ns hold time allow integration into 30 MHz synchronous designs without additional timing margin; pin-compatible with SN74ALS374A for mixed-temperature board variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54AS374J | AS logic family: higher speed (125 MHz fmax), greater drive (48 mA IOL), but higher ICC (128 mA) and reduced noise margin | Suitable for high-throughput test equipment where speed outweighs power and thermal constraints | Select when clock rates exceed 35 MHz and system power budget permits >4× higher supply current |
| JM38510/37204B2A | Identical ALS process, same FK package, identical pinout and timing-but screened to stricter MIL-STD-883 Class B requirements | Required for DoD programs mandating Class B lot acceptance testing and extended burn-in | Choose only when contractual compliance requires Class B qualification beyond standard QML-38535 Level S |
Compared with SNJ54AS374J, 83020022A trades raw speed for lower power and better noise immunity; versus JM38510/37204B2A, it offers identical functionality at lower cost and shorter lead time, with no compromise in reliability for non-Class-B deployments.
Availability
83020022A is available at Aetrix Electronics and suitable for avionics data buffers, rad-hard I/O ports, secure boot loader interfaces, and legacy backplane register files requiring stable component supply across extended lifecycle programs.
Supply support for 83020022A 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 logic solutions for industrial, automotive, and defense markets.
The SN54ALS374A product line delivers radiation-tolerant, temperature-stable octal D-type flip-flops optimized for mission-critical data path synchronization in aerospace and defense electronics.
FAQ
What is the maximum clock frequency supported by 83020022A?
The 83020022A 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 is specified in the timing requirements table for the SN54ALS374A variant and verified across the full military temperature range. The 83020022A achieves this performance using low-power Schottky (ALS) technology while maintaining low power consumption relative to AS-family alternatives.
Does 83020022A support 3.3 V logic levels?
No, 83020022A is a 5 V TTL-compatible device and does not support 3.3 V logic levels. Its input thresholds (VIH = 2.0 V min, VIL = 0.8 V max) and output voltage specifications (VOH ≥ 2.4 V at IOL = 24 mA) are defined for 5 V operation only. Interfacing with 3.3 V systems requires level-shifting circuitry or a compatible 3.3 V–tolerant alternative such as SN74LVC8T245.
What is the function of the OE pin on 83020022A?
The OE (Output Enable) pin on 83020022A is an active-low control that places all eight Q outputs into a high-impedance (Z) state when driven high. When OE is low, the Q outputs reflect the registered D-input values on the preceding rising clock edge. Critically, OE does not affect internal flip-flop operation-data can be loaded or retained regardless of OE state, enabling flexible bus arbitration in 83020022A-based designs.
Is 83020022A RoHS compliant?
83020022A is not RoHS compliant. As a military-spec LCCC (FK) device manufactured prior to RoHS enforcement timelines, it contains lead in the solder finish and ceramic package construction. Its qualification per MIL-PRF-38535 prioritizes reliability and temperature stability over lead-free compliance. For RoHS-compliant alternatives, consider SN74ALS374ADWR in SOIC-DW packaging.
What package type is used for 83020022A?
83020022A uses a 20-pin ceramic leadless chip carrier (LCCC) package, designated FK by Texas Instruments. This hermetically sealed, surface-mount package features metallized perimeter pads for solder attachment and is designed for high-reliability applications requiring operation from –55°C to 125°C. Pin 1 is marked with a laser dot in quadrant Q1, consistent with JEDEC MO-047 standards.
83020022A 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:
- -
83020022A FAQ
1.How can I place an order for 83020022A through Aetrix?
Please submit a Request for Quotation (RFQ) for 83020022A 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 83020022A reliable?
The price and inventory of 83020022A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 83020022A is usually 5 days.
3.What payment methods are accepted for 83020022A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 83020022A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 83020022A?
83020022A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 83020022A 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 83020022A?
For technical support, including 83020022A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 83020022A requirements.
6.How does Aetrix verify that 83020022A is sourced from the original manufacturer or authorized distributors?
All 83020022A 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 83020022A meets industry standards.
7.What is the process for return or replacement of 83020022A?
All 83020022A units undergo pre-shipment inspection (PSI). If there is an issue with 83020022A, 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 83020022A part is unused and in its original packaging.
Return procedure for 83020022A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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