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Texas Instruments TIBPAL16R8-7MJB
- Part No.:
- TIBPAL16R8-7MJB
- Manufacturer:
- Texas Instruments
- Category:
- PLDs (Programmable Logic Device)
- Package:
- 20-CDIP (0.300", 7.62mm)
- Datasheet:
-
TIBPAL16R8-7MJB.pdf
- Description:
- OT PLD, 10NS, PAL-TYPE, TTL, CDI
- Quantity:
- Payment:
- Shipping:
Inventory:529
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Product details
Overview
TIBPAL16R8-7MJB from Texas Instruments is a military-grade, 20-pin registered programmable array logic (PAL) device with eight registered 3-state outputs, eight dedicated inputs, and a single clock input. It delivers 100 MHz maximum operating frequency (no feedback), 6.5 ns max CLK-to-Q propagation delay, and operates across –55°C to 125°C. It is used in high-reliability aerospace and defense timing control, state-machine sequencing, and legacy system logic replacement.
For engineers reviewing the TIBPAL16R8-7MJB datasheet, TIBPAL16R8-7MJB pinout, TIBPAL16R8-7MJB application, or TIBPAL16R8-7MJB equivalent, key selection criteria include military temperature range compliance, registered output preload capability, power-up clear behavior, 3-state output control via OE, and compatibility with standard PAL programming tools and JEDEC fuse-map formats.
Technical Context
The TIBPAL16R8-7MJB implements an AND-OR-invert logic array feeding eight D-type flip-flops, each with asynchronous preload and synchronous clock enable. Its architecture supports internal feedback for counters and external feedback for multi-chip state machines, with fmax defined by tsu + tpd(CLK→Q) in external-feedback mode.
It features titanium-tungsten fuse technology, Advanced Low-Power Schottky (ALPS) process, and a security fuse to prevent duplication. The device asserts all Q outputs low at power-up (with pins driven high due to open-collector-like behavior), and supports asynchronous preload of individual registers using VIHH (10.5 V) on Pin 11.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Type | Registered PAL with 8 × D-flip-flop outputs and 8 dedicated inputs |
| Max Clock Frequency | 100 MHz min (no feedback); defines highest reliable synchronous update rate |
| CLK-to-Q Delay | 6.5 ns max; determines minimum clock-to-data valid window in synchronous designs |
| Operating Temperature | –55°C to 125°C; qualified for extended military and harsh-environment applications |
| Supply Voltage | 4.5 V to 5.5 V; compatible with 5 V TTL systems with margin for rail variation |
| I/O Drive Strength | 12 mA sink / 2 mA source; sufficient for direct TTL fanout without buffers |
| Input/Output Count | 8 inputs, 8 registered 3-state outputs, 1 clock, 1 output enable (OE) |
Pinout & Package
Package: 20-pin ceramic DIP (J package), hermetically sealed for military reliability and moisture resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all logic and power domains |
| 2–9 | I1–I8 | Dedicated input pins; fused into programmable AND array |
| 10 | CLK | Single-edge-triggered clock input for all eight registers |
| 11 | OE | Active-low output enable controlling 3-state buffer gates on all Q outputs |
| 12–19 | Q1–Q8 | Registered outputs with 3-state capability; preloaded individually via Pin 11 |
| 20 | VCC | +5 V supply; requires local 0.1 µF bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous Preload | Each Q output can be set to 0 or 1 independently during test without clocking, reducing test vector count |
| Power-Up Clear | All Q outputs reset to logic low at power-on (pins go high due to internal pull-up behavior), ensuring deterministic startup |
| Military Temperature Range | Qualified from –55°C to 125°C per MIL-STD-883, enabling use in avionics and ground vehicle ECUs |
| Security Fuse | Prevents reverse-engineering or unauthorized reprogramming of fuse map after initial configuration |
| ALPS Process Technology | Advanced Low-Power Schottky ensures stable 100 MHz operation with lower power than standard TTL PALs |
Applications
| Aerospace Sequencing | Defense Radar Control |
|---|---|
Use Scenario: Timing-critical state transitions in missile guidance subsystems requiring deterministic reset and radiation-tolerant logic. IC Role / Device Role / Timing Role: Synchronous state register bank managing sequencer states with guaranteed power-up initialization. Use Value: Power-up clear ensures known initial state; 6.5 ns CLK-to-Q enables tight loop timing in real-time control paths. |
Use Scenario: Pulse-width modulation and antenna beam steering logic in ground-based radar transceivers operating in extreme ambient temperatures. IC Role / Device Role / Timing Role: Registered logic element generating synchronized control signals for RF switch arrays and ADC sampling clocks. Use Value: –55°C to 125°C rating eliminates derating concerns; 3-state outputs allow shared bus arbitration in multi-module radar backplanes. |
| Legacy System Repair | Industrial PLC I/O Expansion |
Use Scenario: Drop-in replacement for obsolete PAL16R8 devices in aging military COTS hardware where redesign is prohibited. IC Role / Device Role / Timing Role: Pin-compatible functional substitute preserving original PCB layout and fuse programming data. Use Value: Identical pinout and JEDEC fuse map support enables reuse of existing programmers and test fixtures. |
Use Scenario: Adding synchronized digital I/O expansion to programmable logic controllers in oil & gas refinery control cabinets exposed to thermal cycling. IC Role / Device Role / Timing Role: Registered interface glue logic synchronizing field sensor inputs and actuator command outputs to main CPU clock domain. Use Value: Asynchronous preload simplifies factory calibration sequences; 12 mA sink drive directly interfaces with industrial 24 V optocoupler inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar registered PAL applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMD PAL16R8-10DC | Commercial grade (0°C to 75°C); 10 ns CLK-to-Q; plastic DIP package | Lacks military temp rating and security fuse; not suitable for deployed systems | Select only for lab prototyping or non-mission-critical upgrades where cost and availability outweigh environmental requirements |
| TIBPAL16R8-5CJ | Commercial temperature range (0°C to 75°C); 4 ns CLK-to-Q; same J-package footprint | Higher speed but unqualified for extended temperature operation or shock/vibe environments | Choose when system ambient stays within commercial range and timing budget demands sub-5 ns register latency |
Compared with AMD PAL16R8-10DC and TIBPAL16R8-5CJ, the TIBPAL16R8-7MJB uniquely provides full military qualification, asynchronous preload, and security fuse - making it the sole option for fielded systems requiring guaranteed startup behavior, tamper resistance, and operation beyond 85°C.
Availability
TIBPAL16R8-7MJB is available at Aetrix Electronics and suitable for aerospace sequencing, defense radar control, and legacy system repair requiring stable component supply over extended product lifecycles.
Supply support for TIBPAL16R8-7MJB 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 founded in 1930, specializing in analog, embedded processing, and programmable logic solutions for industrial, automotive, and defense markets.
The TIBPAL16R8-7MJB belongs to TI's IMPACT-X PAL family, designed specifically to replace discrete TTL logic in high-reliability, medium-complexity control applications while maintaining fuse-based programmability and military-grade robustness.
FAQ
What is the operating temperature range of the TIBPAL16R8-7MJB?
The TIBPAL16R8-7MJB is characterized for operation from –55°C to 125°C, meeting MIL-STD-883 requirements for extended military and aerospace environments. This range is explicitly confirmed in the SRPS011D datasheet Section 14, and distinguishes it from commercial variants like the TIBPAL16R8-5CJ. The device maintains full functionality-including 100 MHz fmax and 6.5 ns CLK-to-Q-across this entire span.
Does the TIBPAL16R8-7MJB support asynchronous preload of its registers?
Yes, the TIBPAL16R8-7MJB supports asynchronous preload of individual Q outputs using Pin 11 (OE) driven to VIHH (10.5 V). As documented in Section 16 of the SRPS011D datasheet, this feature allows each register to be set to 0 or 1 during test without requiring clock cycles, significantly reducing test time for state-machine validation. Preload is verified by observing the output pin voltage level post-sequence.
What happens to the outputs of the TIBPAL16R8-7MJB at power-up?
At power-up, all registered outputs (Q1–Q8) of the TIBPAL16R8-7MJB are cleared to logic low, as stated in Section 17. However, due to internal circuit behavior, the physical pins go high (open-drain-like assertion). This power-up clear is monotonic-VCC-dependent and ensures deterministic initialization without external reset circuitry-critical for fail-safe control systems.
Is the TIBPAL16R8-7MJB pin-compatible with other PAL16R8 variants?
Yes, the TIBPAL16R8-7MJB uses the standard 20-pin DIP pinout defined for PAL16R8 devices: Pins 2–9 = inputs, Pin 10 = CLK, Pin 11 = OE, Pins 12–19 = Q outputs, Pin 1 = GND, Pin 20 = VCC. This matches AMD PAL16R8, TIBPAL16R8-5CJ, and TIBPAL16R8-5CN footprints exactly, enabling mechanical and layout compatibility across temperature grades and manufacturers.
What programming voltage is required for the TIBPAL16R8-7MJB?
The TIBPAL16R8-7MJB requires VIHH = 10.25 V to 10.75 V on Pin 11 for asynchronous preload, and standard 5 V VCC for normal operation and programming. Fuse programming uses industry-standard PAL programmers compliant with JEDEC file format and TI's algorithm specifications-no special high-voltage programming supply is needed beyond VIHH for preload verification.
TIBPAL16R8-7MJB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- IMPACT-X™ PAL®
- Package/Case:
- 20-CDIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Programmable Type:
- PAL
- Number of Macrocells:
- 8
- Voltage - Input:
- 4.5V ~ 5.5V
- Speed:
- 7 ns
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-CDIP
TIBPAL16R8-7MJB FAQ
1.How can I place an order for TIBPAL16R8-7MJB through Aetrix?
Please submit a Request for Quotation (RFQ) for TIBPAL16R8-7MJB 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 TIBPAL16R8-7MJB reliable?
The price and inventory of TIBPAL16R8-7MJB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TIBPAL16R8-7MJB is usually 5 days.
3.What payment methods are accepted for TIBPAL16R8-7MJB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TIBPAL16R8-7MJB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TIBPAL16R8-7MJB?
TIBPAL16R8-7MJB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TIBPAL16R8-7MJB 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 TIBPAL16R8-7MJB?
For technical support, including TIBPAL16R8-7MJB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TIBPAL16R8-7MJB requirements.
6.How does Aetrix verify that TIBPAL16R8-7MJB is sourced from the original manufacturer or authorized distributors?
All TIBPAL16R8-7MJB 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 TIBPAL16R8-7MJB meets industry standards.
7.What is the process for return or replacement of TIBPAL16R8-7MJB?
All TIBPAL16R8-7MJB units undergo pre-shipment inspection (PSI). If there is an issue with TIBPAL16R8-7MJB, 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 TIBPAL16R8-7MJB part is unused and in its original packaging.
Return procedure for TIBPAL16R8-7MJB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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