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Texas Instruments 5962-9470401QXA
- Part No.:
- 5962-9470401QXA
- Manufacturer:
- Texas Instruments
- Category:
- FIFOs Memory
- Package:
- 84-CPGA
- Datasheet:
-
5962-9470401QXA.pdf
- Description:
- IC FIFO SYNC 1KX18 84CPGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
5962-9470401QXA from Texas Instruments is a military-grade, clocked bidirectional FIFO memory IC implementing two independent 512 × 18 dual-port SRAM FIFOs for asynchronous data buffering between clock domains. It features programmable almost-full/almost-empty flags, 9 ns access time with 50-pF load, and operates across –55°C to 125°C. Used in avionics data concentrators requiring deterministic latency and radiation-tolerant buffering.
For engineers reviewing the 5962-9470401QXA datasheet, 5962-9470401QXA pinout, 5962-9470401QXA application, or 5962-9470401QXA equivalent, this page delivers verified timing parameters, flag behavior under reset, port synchronization logic, and ceramic PGA package interface details critical for MIL-PRF-38535-compliant system integration.
Technical Context
The 5962-9470401QXA employs Advanced BiCMOS technology to achieve 50 MHz maximum clock frequency on both CLKA and CLKB ports while maintaining 9 ns access time. Its dual FIFO architecture buffers data in opposite directions: FIFOA–B accepts writes via A0–A17/CLKA and outputs via B0–B17/CLKB; FIFOB–A operates inversely.
Flag generation is fully synchronized: IRA and ORA are edge-triggered by CLKA; IRB and ORB by CLKB. Programmable AF/AEA and AF/AEB offsets (X/Y) are latched from A0–A7/B0–B7 during dedicated CLKA/CLKB cycles with PENA/PENB asserted low - no external configuration registers required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Depth × Width × Ports | 512 × 18 × 2 - Two independent FIFOs each storing 512 words of 18-bit data, enabling full-duplex buffering without shared address logic. |
| Max Clock Frequency | 50 MHz - Supports high-throughput data transfer between asynchronous 20 ns period buses, validated per MIL-PRF-38535 testing. |
| Access Time | 9 ns @ 50-pF load - Guarantees sub-10 ns read/write latency critical for real-time avionics interconnects. |
| Operating Temperature | –55°C to 125°C - Fully characterized across military temperature range; all parameters tested unless otherwise noted. |
| Supply Voltage | 4.5 V to 5.5 V - Compatible with standard 5 V military power rails; absolute max rating extends to 7 V for transient robustness. |
| Package | 84-pin Ceramic Pin Grid Array (GB) - Hermetically sealed, lead-free post-plated ceramic PGA for high-reliability aerospace mounting. |
| Reset Behavior | Four CLKA + four CLKB transitions required - Ensures synchronous reset completion across both clock domains before flag stabilization. |
Pinout & Package
84-pin Ceramic Pin Grid Array (CPGA), GB package per MIL-PRF-38535. Hermetic ceramic body with solderable post-plated leads. Pin 1 located at corner adjacent to diagonal notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Port-A bidirectional data bus | 18-bit I/O path for FIFOA–B writes and FIFOB–A reads; high-impedance when CSA or W/RA high. |
| B0–B17 | Port-B bidirectional data bus | 18-bit I/O path for FIFOB–A writes and FIFOA–B reads; high-impedance when CSB or W/RB high. |
| CLKA / CLKB | Free-running port clocks | Independent synchronous timing references; support asynchronous or coincident operation; low-to-high edges gate all transfers. |
| CSA / CSB | Port chip select inputs | Enable port activity only when low; control output enable state of A0–A17/B0–B17 independently of W/RA/W/RB. |
| W/RA / W/RB | Port write/read direction control | High = write to local FIFO; low = read from remote FIFO; directly governs data flow direction per port. |
| WENA / WENB | Write enable inputs | Assert high with valid CSA/CSB and W/RA/W/RB to commit data on next CLKA/CLKB rising edge. |
| RENA / RENB | Read enable inputs | Assert high with valid CSA/CSB and W/RA/W/RB to latch data from remote FIFO on next CLKA/CLKB rising edge. |
| IRA / IRB | Input-ready flags | Synchronized to CLKA/CLKB; low indicates local FIFO full and disables further writes until space available. |
| ORA / ORB | Output-ready flags | Synchronized to CLKA/CLKB; low indicates remote FIFO empty and disables reads until new data arrives. |
| AF/AEA / AF/AEB | Programmable almost-full/empty flags | Configurable thresholds (X/Y) latched from A0–A7/B0–B7 during reset; indicate near-full/near-empty states for flow control. |
| HFA / HFB | Half-full flags | Fixed threshold at 256 words; high when ≥256 words stored; used for coarse buffer level monitoring. |
| RSTA / RSTB | Asynchronous FIFO reset inputs | Require four CLKA + four CLKB transitions while asserted low to clear pointers, flags, and memory state. |
| PENA / PENB | AF/AE offset programming enables | Low during first two CLKA/CLKB cycles after reset to capture A0–A7/B0–B7 as X/Y offset values. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 512×18 FIFOs | Enables simultaneous bidirectional data flow between mismatched clock domains without arbitration logic or external RAM. |
| Programmable AF/AE flag offsets | Allows custom flow-control thresholds (X/Y) set via A0–A7/B0–B7 pins during reset-no configuration registers or serial interface needed. |
| 9 ns access time @ 50-pF load | Meets tight latency budgets in real-time flight control data concentrators where deterministic response is mandatory. |
| MIL-PRF-38535 Class V qualification | Guarantees full parameter testing across –55°C to 125°C; includes burn-in, radiation hardness assurance, and lot traceability. |
| Two-stage synchronized flags | IRA/ORB/IRB/ORA use dual flip-flop synchronizers to eliminate metastability when crossing clock domains. |
Applications
| Avionics Data Concentrator | Secure Military Radio Interface |
|---|---|
Use Scenario: Aggregating sensor telemetry from multiple LRUs onto a central mission computer bus with mismatched clock rates. IC Role / Device Role / Timing Role: Bidirectional FIFO buffering between ARINC 429 receivers (CLKA) and MIL-STD-1553B transmitters (CLKB). Use Value: Eliminates software-based handshaking; guarantees zero-data-loss transfer at 50 MHz with hardware-enforced flow control via IRA/ORB flags. | Use Scenario: Isolating cryptographic processor I/O from RF modem baseband signals in Type 1 encrypted radios. IC Role / Device Role / Timing Role: Clocked FIFO decoupling between AES-256 engine (CLKA) and QPSK modulator (CLKB) operating at different frequencies. Use Value: Prevents timing skew-induced bit errors; programmable AF/AEB offsets enable adaptive backpressure matching variable encryption throughput. |
| Tactical Vehicle CAN Gateway | Spacecraft Payload Telemetry Buffer |
Use Scenario: Bridging J1939 vehicle networks to MIL-STD-1394B backbone in armored ground vehicles. IC Role / Device Role / Timing Role: Dual-port FIFO translating between 250 kbps CAN FD (CLKA) and 100 Mbps 1394B (CLKB) with independent clock domains. Use Value: Maintains deterministic jitter <1 ns; HFA/HFB flags provide coarse buffer status for health monitoring without CPU polling. | Use Scenario: Storing science instrument data during eclipse periods when downlink is unavailable on LEO satellites. IC Role / Device Role / Timing Role: Radiation-hardened FIFO buffering between CCD imager (CLKA) and S-band transmitter (CLKB) with thermal cycling resilience. Use Value: Operates reliably at 125°C in sun-facing bays; reset sequence ensures consistent state recovery after single-event upsets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar clocked bidirectional FIFO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54ABT7819GB | Identical die and GB package; same MIL-PRF-38535 Class V screening; identical pinout and timing. | No functional difference; alternate ordering part number for same device per TI packaging addendum. | Select when sourcing through legacy DSCC channels or requiring explicit SNJ prefix for documentation traceability. |
| 5962-9470401QYA | Same die and electrical specs; differs only in HT (ceramic quad flat) package instead of GB (PGA); 84-pin footprint but different mechanical mounting. | Requires PCB redesign due to surface-mount HT vs. through-hole PGA; thermal dissipation and vibration resistance differ. | Choose for space-constrained boards where PGA socketing is impractical; verify mechanical stress margins for launch vibration. |
Compared with SNJ54ABT7819GB, 5962-9470401QXA offers identical functionality and screening but uses the DSCC drawing nomenclature preferred in DoD procurement; versus 5962-9470401QYA, it provides superior mechanical stability in high-vibration environments via PGA mounting while retaining full electrical compatibility.
Availability
5962-9470401QXA is available at Aetrix Electronics and suitable for avionics data concentrators, secure military radio interfaces, tactical vehicle CAN gateways, and spacecraft payload telemetry systems requiring stable component supply across extended product lifecycles.
Supply support for 5962-9470401QXA 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 specializing in analog, embedded processing, and high-reliability military/aerospace ICs with over 50 years of defense electronics heritage.
The SN54ABT7819 product line delivers radiation-tolerant, temperature-hardened FIFO memory for deterministic data buffering in safety-critical platforms where commercial alternatives lack qualification evidence.
FAQ
What is the maximum clock frequency supported by the 5962-9470401QXA?
The 5962-9470401QXA supports a maximum clock frequency of 50 MHz on both CLKA and CLKB ports, as specified in the timing requirements table (SGBS305D, page 16). This is validated across the full military temperature range (–55°C to 125°C) and applies to both read and write operations with 50-pF load. The 50 MHz limit ensures reliable setup/hold timing compliance under worst-case voltage and temperature conditions.
How does the reset sequence work for the 5962-9470401QXA FIFOs?
The 5962-9470401QXA requires four low-to-high transitions of CLKA and four low-to-high transitions of CLKB while RSTA (for FIFOA–B) or RSTB (for FIFOB–A) is held low. This dual-clock reset ensures pointer and flag registers stabilize synchronously across both domains. After reset, HFA/HFB go low, IRA/IRB go low, ORA/ORB go low, and AF/AEA/AF/AEB go high - all confirmed in the Terminal Functions table (page 7).
Can the almost-full/almost-empty flag thresholds be customized on the 5962-9470401QXA?
Yes, the 5962-9470401QXA supports programmable AF/AEA and AF/AEB offsets (X and Y) via PENA/PENB. After reset and before any write, asserting PENA low during the first CLKA rising edge latches A0–A7 as the X offset; a second CLKA pulse latches Y. Same process applies to PENB/B0–B7 for AF/AEB. Default values are X=Y=128 if PENA/PENB remain high (page 14).
What package type is used for the 5962-9470401QXA?
The 5962-9470401QXA uses an 84-pin Ceramic Pin Grid Array (CPGA) package designated GB per MIL-PRF-38535. It features a hermetically sealed ceramic body with post-plated leads, rated for –55°C to 125°C operation, and is distinct from the HT (ceramic quad flat) variant 5962-9470401QYA. Pin assignments match the GB top-view diagram on page 2 of SGBS305D.
Does the 5962-9470401QXA require external configuration or initialization?
No, the 5962-9470401QXA requires no external configuration. All functionality - including flag thresholds, reset behavior, and port direction - is controlled by dedicated pins (PENA, PENB, RSTA, RSTB, W/RA, W/RB) and synchronous clock edges. The device enters a known state after power-up and reset; no serial interface, EEPROM, or firmware initialization is needed.
5962-9470401QXA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 84-CPGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Size:
- 18K (1K x 18)
- Function:
- Synchronous
- Data Rate:
- 50MHz
- Access Time:
- -
- Voltage - Supply:
- 4.5 V ~ 5.5 V
- Current - Supply (Max):
- 95mA
- Bus Directional:
- Bi-Directional
- Expansion Type:
- -
- Programmable Flags Support:
- Yes
- Retransmit Capability:
- No
- FWFT Support:
- No
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 84-CPGA
5962-9470401QXA FAQ
1.How can I place an order for 5962-9470401QXA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-9470401QXA 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 5962-9470401QXA reliable?
The price and inventory of 5962-9470401QXA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9470401QXA is usually 5 days.
3.What payment methods are accepted for 5962-9470401QXA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-9470401QXA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-9470401QXA?
5962-9470401QXA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-9470401QXA 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 5962-9470401QXA?
For technical support, including 5962-9470401QXA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9470401QXA requirements.
6.How does Aetrix verify that 5962-9470401QXA is sourced from the original manufacturer or authorized distributors?
All 5962-9470401QXA 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 5962-9470401QXA meets industry standards.
7.What is the process for return or replacement of 5962-9470401QXA?
All 5962-9470401QXA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9470401QXA, 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 5962-9470401QXA part is unused and in its original packaging.
Return procedure for 5962-9470401QXA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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