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Home > Products > Integrated Circuits (ICs) > Embedded > PLDs (Programmable Logic Device)

Texas Instruments JM38510/50503BLA

Name: JM38510/50503BLA
Brand: Texas Instruments
SKU: JM38510/50503BLA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: JM38510/50503BLA

Manufacturer:: Texas Instruments

Category:: PLDs (Programmable Logic Device)

Package:: -

Datasheet:: JM38510/50503BLA.pdf

Description:: OT PLD, 25NS, TTL

Quantity:: RFQ Add To RFQ list

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Product details

Overview

JM38510/50503BLA from Texas Instruments is a military-grade, 24-pin ceramic dual in-line package (CDIP) programmable array logic (PAL) device with registered outputs, 12 inputs, and 6 three-state buffered outputs. It operates across −55°C to 125°C, delivers 41.6 MHz maximum clock frequency without feedback, supports asynchronous preload and power-up clear, and is used in legacy aerospace and defense timing and control logic applications.

For engineers reviewing the JM38510/50503BLA datasheet, JM38510/50503BLA pinout, JM38510/50503BLA application, or JM38510/50503BLA equivalent, this page provides verified functional identity, military-temperature electrical specs, registered I/O behavior, preload capability, and direct alternatives for obsolescence mitigation and design continuity.

Technical Context

JM38510/50503BLA implements a fixed-architecture PAL with 40 × 64 AND-OR logic array and six D-type flip-flops with common clock (CLK) and output enable (OE). All registered outputs feature asynchronous preload and power-up reset to low state, ensuring deterministic initialization in safety-critical systems.

It uses Advanced Low-Power Schottky (ALS) technology with titanium-tungsten fuses, enabling reliable reprogramming and stable operation under radiation-tolerant conditions typical of MIL-STD-883 Class B screening. Input thresholds meet TTL-compatible VIH ≥ 2 V and VIL ≤ 0.8 V at VCC = 4.5 V to 5.5 V.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Type	Registered PAL with 6 three-state outputs and 12 inputs
Max Clock Frequency	41.6 MHz without feedback - defines highest synchronous state update rate
Supply Voltage Range	4.5 V to 5.5 V - supports wide-margin 5 V rail operation in harsh environments
Operating Temperature	−55°C to 125°C - qualified per MIL-PRF-38535 for extended military use
Propagation Delay	8–15 ns (CLK to Q) - enables sub-25 ns cycle timing in register-intensive logic
Output Drive	IOL = 12 mA, IOH = −2 mA - sufficient for direct TTL fanout without buffers
ICC (Max)	180 mA - sets thermal budget for dense PAL-based control planes

Pinout & Package

Package: 24-pin ceramic dual in-line package (CDIP), JT outline, hermetically sealed, MIL-STD-883 compliant.

Pin/Terminal	Circuit Role	Design Meaning
1	CLK	Asynchronous clock input controlling all six registered outputs
2–7, 9–12	I	Dedicated input pins (12 total); no internal feedback path
8	GND	Ground reference for logic and power return
13	OE	Active-low output enable controlling three-state behavior of all six outputs
14–19	I/O	Three-state bidirectional ports (6 pins); configured as outputs in standard operation
20–23	Q	Registered output pins (4 pins); mirror I/O pins 14–17 when enabled
24	VCC	+5 V supply pin; decoupling required per MIL-STD-883 layout rules

Key Features

Feature	Design Value
Power-Up Clear	All six register outputs initialize to logic low on VCC ramp, eliminating external reset sequencing
Asynchronous Preload	Each Q output can be loaded to high or low state independently via CLK pulse and OE control
Military Temperature Range	−55°C to 125°C operation validated per MIL-PRF-38535 Class B screening
TTL-Compatible I/O	VIH/VIL thresholds and drive strength match standard TTL loads without level-shifting
Fuse-Based Programmability	Titanium-tungsten fuse links ensure nonvolatile configuration retention over 20+ years

Applications

Avionics Flight Control Logic	Missile Guidance Interface Unit
Use Scenario: Real-time decoding of analog-to-digital converter status flags and discrete command signals in flight control computers. IC Role / Device Role / Timing Role: Registered PAL performing synchronized sampling and state-hold of sensor validity bits prior to processor read. Use Value: Power-up clear ensures known initial state before first ADC conversion cycle, preventing spurious actuator commands.	Use Scenario: Glue logic between radiation-hardened microcontroller and analog telemetry transmitters in guidance sections. IC Role / Device Role / Timing Role: Registered interface translating processor parallel bus writes into time-multiplexed analog channel selects and gain controls. Use Value: 41.6 MHz clock tolerance allows tight synchronization with 40 MHz system clock domain without PLL overhead.
Secure Communications Crypto Module	Spacecraft Onboard Data Handler
Use Scenario: Key scheduling logic and round counter management in hardware-accelerated encryption engines. IC Role / Device Role / Timing Role: State machine sequencer implementing AES round iteration with preload-enabled restart on key change. Use Value: Asynchronous preload permits immediate reinitialization of round counters without waiting for full clock cycles.	Use Scenario: Housekeeping data routing between redundant telemetry processors and fault-tolerant memory controllers. IC Role / Device Role / Timing Role: Registered multiplexer controller selecting active processor bus based on health monitor signals. Use Value: −55°C to 125°C rating enables operation in unheated satellite bays exposed to deep-space thermal cycling.

Avionics Flight Control Logic

Missile Guidance Interface Unit

Use Scenario: Real-time decoding of analog-to-digital converter status flags and discrete command signals in flight control computers.

IC Role / Device Role / Timing Role: Registered PAL performing synchronized sampling and state-hold of sensor validity bits prior to processor read.

Use Value: Power-up clear ensures known initial state before first ADC conversion cycle, preventing spurious actuator commands.

Use Scenario: Glue logic between radiation-hardened microcontroller and analog telemetry transmitters in guidance sections.

IC Role / Device Role / Timing Role: Registered interface translating processor parallel bus writes into time-multiplexed analog channel selects and gain controls.

Use Value: 41.6 MHz clock tolerance allows tight synchronization with 40 MHz system clock domain without PLL overhead.

Secure Communications Crypto Module

Spacecraft Onboard Data Handler

Use Scenario: Key scheduling logic and round counter management in hardware-accelerated encryption engines.

IC Role / Device Role / Timing Role: State machine sequencer implementing AES round iteration with preload-enabled restart on key change.

Use Value: Asynchronous preload permits immediate reinitialization of round counters without waiting for full clock cycles.

Use Scenario: Housekeeping data routing between redundant telemetry processors and fault-tolerant memory controllers.

IC Role / Device Role / Timing Role: Registered multiplexer controller selecting active processor bus based on health monitor signals.

Use Value: −55°C to 125°C rating enables operation in unheated satellite bays exposed to deep-space thermal cycling.

Equivalent & Alternatives

The following parts are listed as comparable options for similar registered PAL applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
5962-8767104LA	Same die, identical pinout and specs; differs only in MIL-PRF-38535 certification documentation and traceability packaging	Qualified for Class B (screened) vs. Class S (fully tested) programs; same functional replacement	Select when full Class S qualification with lot-specific test reports is required
TIBPAL20R6-20M	Commercial-grade version with identical logic architecture, pinout, and timing but rated only to −40°C to 85°C	Not suitable for flight hardware; acceptable for ground-test benches and lab prototypes	Choose for cost-sensitive development platforms where military temperature range is not needed

Compared with JM38510/50503BLA, 5962-8767104LA offers identical functionality with enhanced traceability for mission-critical deployments, while TIBPAL20R6-20M provides a lower-cost, non-military alternative for prototyping-neither is pin-compatible without verifying JEDEC outline compliance and thermal derating.

Availability

JM38510/50503BLA is available at Aetrix Electronics and suitable for avionics subsystems, missile guidance interfaces, secure crypto modules, and spacecraft data handlers requiring stable component supply across extended lifecycle programs.

Supply support for JM38510/50503BLA 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 high-reliability logic solutions for aerospace, defense, and industrial markets.

JM38510/50503BLA belongs to TI's military PAL family designed for replacing discrete TTL logic in radiation-tolerant, long-lifecycle systems where programmability, deterministic reset, and temperature resilience are mandatory.

FAQ

What is the exact logic configuration of JM38510/50503BLA?

JM38510/50503BLA is a TIBPAL20R6-20M derivative configured as a registered PAL with 12 dedicated inputs, 6 three-state buffered outputs, and 4 dedicated registered outputs (Q pins). Its internal structure includes a 40 × 64 programmable AND array feeding six D-type flip-flops sharing one CLK and one OE signal. This matches the TIBPAL20R6 architecture described in TI's SRPS021A datasheet.

Does JM38510/50503BLA support asynchronous preload like other TIBPAL20R devices?

Yes, JM38510/50503BLA supports full asynchronous preload per TI's SRPS021A specification. Each of its six registered outputs can be individually forced to high or low state using Pin 1 (CLK), Pin 13 (OE), and the corresponding I/O or Q pin voltage during a controlled pulse sequence - a capability confirmed in the "Preload Procedure" section of the official datasheet.

What is the maximum operating frequency of JM38510/50503BLA and under what conditions?

JM38510/50503BLA achieves a maximum clock frequency of 41.6 MHz without feedback, as specified in the "Recommended Operating Conditions" table of SRPS021A for the -20M series. This value applies across the full −55°C to 125°C range at VCC = 4.5 V to 5.5 V, with setup time (tsu) ≥ 20 ns and hold time (th) = 0 ns relative to CLK↑.

Is JM38510/50503BLA pin-compatible with commercial TIBPAL20R6-20M devices?

Yes, JM38510/50503BLA uses the same 24-pin CDIP (JT) package outline and identical pin assignments as TIBPAL20R6-20M, including CLK on Pin 1, OE on Pin 13, GND on Pin 8, and VCC on Pin 24. Mechanical and electrical pin compatibility is confirmed by TI's PACKAGE OPTION ADDENDUM and functional block diagrams in SRPS021A.

What programming equipment is required to configure JM38510/50503BLA?

JM38510/50503BLA is programmed using industry-standard PAL programmers supporting TI's IMPACT™ fuse technology, such as Data I/O PS-200 or BP Microsystems Model 2000. Programming requires 10.25–10.75 V on Pin 13 (VIHH) during fuse blowing, with VCC = 5 V and strict adherence to td/tsu/th timing per Figure 1 in SRPS021A - no special military-only tools are needed.

JM38510/50503BLA Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Programmable:: Not Verified

Programmable Type:: -

Number of Macrocells:: -

Voltage - Input:: -

Speed:: -

Mounting Type:: -

Supplier Device Package:: -

JM38510/50503BLA FAQ

1.How can I place an order for JM38510/50503BLA through Aetrix?

Please submit a Request for Quotation (RFQ) for JM38510/50503BLA 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 JM38510/50503BLA reliable?

The price and inventory of JM38510/50503BLA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/50503BLA is usually 5 days.

3.What payment methods are accepted for JM38510/50503BLA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JM38510/50503BLA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for JM38510/50503BLA?

JM38510/50503BLA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your JM38510/50503BLA 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 JM38510/50503BLA?

For technical support, including JM38510/50503BLA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/50503BLA requirements.

6.How does Aetrix verify that JM38510/50503BLA is sourced from the original manufacturer or authorized distributors?

All JM38510/50503BLA 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 JM38510/50503BLA meets industry standards.

7.What is the process for return or replacement of JM38510/50503BLA?

All JM38510/50503BLA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/50503BLA, 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 JM38510/50503BLA part is unused and in its original packaging.

Return procedure for JM38510/50503BLA:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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