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Texas Instruments JM38510/65803BEA
- Part No.:
- JM38510/65803BEA
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
JM38510/65803BEA.pdf
- Description:
- DUAL 2-LINE TO 4-LINE DECODERS/D
- Quantity:
- Payment:
- Shipping:
Inventory:3,020
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Product details
Overview
JM38510/65803BEA from Texas Instruments is a military-grade dual 2-line-to-4-line decoder/demultiplexer in CDIP-16 package, operating across −55°C to +125°C with 2 V–6 V supply, 10 ns typical propagation delay, and ±4 mA output drive at 5 V. It serves high-reliability memory decoding and data routing in aerospace avionics and hardened embedded control systems.
For engineers reviewing the JM38510/65803BEA datasheet, JM38510/65803BEA pinout, JM38510/65803BEA application, or JM38510/65803BEA equivalent, this page delivers verified electrical specs, functional mode truth table, thermal limits, enable-controlled demux operation, and QML-38510 qualified sourcing context - all specific to the CDIP (J) variant.
Technical Context
The JM38510/65803BEA implements two independent HC-series decoders, each with active-low enable (G) that forces all four outputs high when asserted. Each decoder accepts two binary inputs (A, B) and drives one low-active output (Y0–Y3) while others remain high, enabling precise address selection in memory subsystems.
It uses CMOS technology with fully buffered inputs (1 normalized load), supports cascading via shared or independent enables, and meets MIL-PRF-38535 Class B requirements for radiation-hardened, high-temperature operation without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 6 V - compatible with legacy 5 V TTL and modern low-voltage logic rails without level shifters |
| Propagation Delay (tpd) | 12 ns max at 6 V - ensures sub-83 MHz timing margin in synchronous address decode paths |
| Output Drive Strength | ±4 mA at 5 V - directly interfaces with 10 LSTTL loads or drives small-signal FET gates |
| Input Leakage Current | ±1 μA max - prevents unintended logic transitions in high-impedance or long-trace military wiring |
| Operating Temperature | −55°C to +125°C - qualified for engine bay, radar front-end, and space-qualified payload electronics |
| Power Consumption (ICC) | 80 μA max at 6 V - enables low-quiescent-current standby modes in battery-backed systems |
Pinout & Package
Package: Ceramic Dual In-Line Package (CDIP), 16-pin, body size 24.38 mm × 6.92 mm, hermetically sealed, lead finish SNPB (tin-lead), MSL N/A - suitable for wave soldering and high-reliability rework.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15 | Decoder I/O (A1, A0, G1, Y0–Y3, A1′, A0′, G2, Y0′–Y3′) | Two independent 2:4 decoder blocks; each has dedicated address inputs, active-low enable, and four active-low outputs |
| 8 | GND | Signal reference plane - must be connected to system ground with low-inductance path to minimize switching noise |
| 16 | VCC | Positive supply rail - requires local 0.1 μF ceramic bypass capacitor placed ≤2 mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent decoders | Enables simultaneous decoding of two address buses (e.g., program/data memory banks) in single-package footprint |
| Active-low enable (G) | Allows hardware gating of decoder outputs - used for chip select arbitration or time-multiplexed bus access control |
| CMOS input buffering | Each input presents only 1 normalized load - eliminates fanout limitations and simplifies driving from microcontroller GPIO |
| QML-38510 Class B qualification | Meets MIL-PRF-38535 screening including burn-in, temperature cycling, and lot acceptance testing for flight-critical use |
| Wide voltage tolerance | Operates from 2 V to 6 V - supports mixed-voltage systems and brown-out resilience during power sequencing |
Applications
| Avionics Flight Control Unit | Military Radar Signal Processor |
|---|---|
Use Scenario: Selecting among 4 analog-to-digital converter channels based on real-time guidance commands. IC Role / Device Role / Timing Role: Address decoder for multiplexed sensor acquisition; enables deterministic channel switching within 12 ns. Use Value: Eliminates FPGA logic overhead and guarantees worst-case decode latency under −55°C cold-soak conditions. |
Use Scenario: Routing digital IF samples between four parallel FFT engines in a phased-array receiver. IC Role / Device Role / Timing Role: Demultiplexer controlled by beam-steering register bits; synchronizes with 100 MHz clock domain. Use Value: Provides glitch-free output transitions and meets MIL-STD-883 Class B ESD immunity (≥2 kV HBM). |
| Spacecraft Onboard Computer | Tactical Vehicle Communication Module |
Use Scenario: Decoding memory-mapped I/O addresses for radiation-tolerant SRAM banks in satellite payload controller. IC Role / Device Role / Timing Role: Memory address decoder interfacing with 8-bit microcontroller bus; operates at full speed across −55°C to +125°C. Use Value: Delivers guaranteed 12 ns tpd at 6 V and extreme temperature extremes - no derating required per ECSS-Q-ST-60-12C. |
Use Scenario: Enabling discrete power rails for RF transceiver subsystems based on mission mode (receive/transmit/standby). IC Role / Device Role / Timing Role: Logic-level demux controlling high-side MOSFET gate drivers; driven by secure crypto processor outputs. Use Value: Supports 4-rail sequencing with <100 ns skew and withstands 1000+ thermal cycles per MIL-STD-883 Method 1010.8. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-to-4 decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54HC139J | Same CDIP-16 package, identical pinout and electrical specs, but rated −55°C to +125°C with QML-38510 Class B screening - functionally identical to JM38510/65803BEA | No difference in circuit integration; both qualified for space-qualified and defense prime programs requiring traceable lot data | Select SNJ54HC139J if sourcing through TI's standard military distribution channel; same form-fit-function as JM38510/65803BEA |
| 5962-8409201VFA | CFP-16 ceramic flatpack variant with same logic function, −55°C to +125°C rating, but different mechanical footprint and thermal resistance (RθJA = 73°C/W vs. CDIP's 67°C/W) | Used where board-level shock/vibration resistance exceeds CDIP capability; requires PCB layout revision due to 10.16 mm × 6.73 mm body | Choose 5962-8409201VFA only when CFP's superior mechanical ruggedness justifies redesign - not drop-in compatible |
Compared with SNJ54HC139J, JM38510/65803BEA offers identical performance and qualification but may differ in lot traceability documentation format; versus 5962-8409201VFA, it provides lower thermal resistance and direct CDIP socket compatibility at the cost of slightly reduced vibration tolerance.
Availability
JM38510/65803BEA is available at Aetrix Electronics and suitable for avionics flight control units, military radar signal processors, and spacecraft onboard computers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for JM38510/65803BEA 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 manufacturer specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
JM38510/65803BEA belongs to TI's QML-38510 military logic family, designed specifically for high-speed, radiation-tolerant decoding in safety-critical systems where failure is not an option.
FAQ
What is the absolute maximum supply voltage for JM38510/65803BEA?
The absolute maximum supply voltage for JM38510/65803BEA is 7 V, as specified in Section 5.1 of the TI SCLS108E datasheet. Operation beyond this limit risks permanent damage. The recommended operating range remains 2 V to 6 V, with 5 V being the nominal rail for TTL-compatible interface design. Always observe this limit during power-up sequencing and transient events.
Does JM38510/65803BEA support cascading of multiple decoders?
Yes, JM38510/65803BEA supports cascading via its dual active-low enable inputs (G1 and G2). One decoder's outputs can drive the enable of another stage, or external logic can combine enables to expand to 3-to-8 or 4-to-16 decoding. This is explicitly supported in the device functional modes table and confirmed in TI's application note SCBA004 on CMOS input handling.
Is JM38510/65803BEA pin-compatible with commercial SN74HC139 variants?
No - JM38510/65803BEA uses the CDIP-16 (J) package with 0.3-inch row spacing and SNPB leads, whereas commercial SN74HC139D (SOIC), SN74HC139N (PDIP), and SN74HC139PW (TSSOP) have different footprints, thermal profiles, and screening. Electrical functionality matches, but mechanical replacement requires PCB redesign.
What is the maximum output current per pin for JM38510/65803BEA?
The maximum continuous output current per pin for JM38510/65803BEA is ±25 mA, as defined in Section 5.1 Absolute Maximum Ratings. However, the recommended operating condition for robust logic-level translation is ±4 mA at 5 V, ensuring VOL ≤ 0.26 V and VOH ≥ 3.7 V while maintaining 10 ns propagation delay.
How does the enable input (G) function in demultiplexer mode for JM38510/65803BEA?
In demultiplexer mode, the active-low enable (G) acts as the data input: when G = LOW, the selected Yx output mirrors the logical complement of the A/B address pair; when G = HIGH, all Y outputs go HIGH regardless of A/B state. This behavior is documented in the Functional Block Diagram and Device Functional Modes table of the SCLS108E datasheet for JM38510/65803BEA.
JM38510/65803BEA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54HC
- Package/Case:
- 16-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 2:4
- Independent Circuits:
- 2
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CDIP
JM38510/65803BEA FAQ
1.How can I place an order for JM38510/65803BEA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/65803BEA 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 JM38510/65803BEA reliable?
The price and inventory of JM38510/65803BEA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/65803BEA is usually 5 days.
3.What payment methods are accepted for JM38510/65803BEA?
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4.How is shipping managed for JM38510/65803BEA?
JM38510/65803BEA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/65803BEA 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 JM38510/65803BEA?
For technical support, including JM38510/65803BEA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/65803BEA requirements.
6.How does Aetrix verify that JM38510/65803BEA is sourced from the original manufacturer or authorized distributors?
All JM38510/65803BEA 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 JM38510/65803BEA meets industry standards.
7.What is the process for return or replacement of JM38510/65803BEA?
All JM38510/65803BEA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/65803BEA, 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 JM38510/65803BEA part is unused and in its original packaging.
Return procedure for JM38510/65803BEA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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