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Texas Instruments JM38510/65802B2A
- Part No.:
- JM38510/65802B2A
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 20-CLCC
- Datasheet:
-
JM38510/65802B2A.pdf
- Description:
- 3-LINE TO 8-LINE DECODERS/DEMULT
- Quantity:
- Payment:
- Shipping:
Inventory:2,993
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Product details
Overview
JM38510/65802B2A from Texas Instruments is a military-grade 3-line to 8-line decoder/demultiplexer in LCCC-20 package, operating across –55°C to +125°C, with 2 V–6 V supply range, 15 ns typical propagation delay at 6 V, and active-low outputs enabling high-speed memory decoding and data routing in radiation-tolerant systems.
For engineers reviewing the JM38510/65802B2A datasheet, JM38510/65802B2A pinout, JM38510/65802B2A application, or JM38510/65802B2A equivalent, this page delivers verified electrical specs, thermal metrics, enable-input logic behavior, and military-grade packaging details critical for aerospace, defense, and high-reliability embedded control designs.
Technical Context
The JM38510/65802B2A implements a CMOS-based 3-to-8 binary decoder with three enable inputs (G1 active-high, G2A/G2B active-low) that collectively gate all eight outputs - only one output goes low per valid input combination, while all others remain high. Its architecture supports cascading without external inverters via enable-pin reuse as data paths.
It operates under MIL-STD-883 conditions with junction-to-case (bottom) thermal resistance of 17.7°C/W and junction-to-board resistance of 47.7°C/W, supporting sustained operation in conduction-cooled avionics modules and hardened ground systems where thermal margin and latch-up immunity are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2 V to 6 V - compatible with legacy 5 V TTL and modern 3.3 V/2.5 V logic domains without level-shifting. |
| Propagation Delay (tpd) | 15 ns typical at VCC = 6 V - enables sub-67 MHz decoding cycles in high-speed memory address demuxing. |
| Output Drive | ±4 mA at 5 V - sufficient to directly drive LSTTL loads or interface with discrete transistor arrays in I/O expansion. |
| Input Current (II) | ±1 µA max - minimizes loading on upstream logic and preserves signal integrity in long-bus configurations. |
| Operating Temperature | –55°C to +125°C - qualified per MIL-PRF-38535 for use in uncontrolled environmental zones of flight control and radar subsystems. |
| Power Consumption (ICC) | 160 µA max at VCC = 6 V - supports low-quiescent-power standby modes in battery-backed mission-critical systems. |
Pinout & Package
LCCC-20 ceramic package (8.89 mm × 8.89 mm), hermetically sealed, leadless, with solderable metallized terminations suitable for high-vibration and high-humidity environments. Pin 1 marked by corner notch; pins arranged in counter-clockwise order starting from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A (Pin 2) | Select input A (LSB) | Binary address bit 0; determines least-significant output selection when enables are asserted. |
| B (Pin 3) | Select input B | Binary address bit 1; used with A and C to fully decode 3-bit input into one-of-eight outputs. |
| C (Pin 4) | Select input C (MSB) | Binary address bit 2; MSB of 3-bit select bus; defines output Y4–Y7 vs Y0–Y3 grouping. |
| G2A (Pin 5) | Active-low enable A | Primary enable path; must be LOW with G2B LOW and G1 HIGH for functional decode operation. |
| G2B (Pin 7) | Active-low enable B | Secondary enable; both G2A and G2B must be LOW simultaneously to activate decoder logic. |
| G1 (Pin 8) | Active-high enable | Third enable; must be HIGH to allow output transitions - used for hierarchical enable chaining. |
| VCC (Pin 20) | Supply voltage | Positive rail connection; requires local 0.1 µF bypass capacitor to suppress switching noise during output transitions. |
| GND (Pin 10) | Ground reference | Return path for all internal logic and output currents; must be connected to system ground plane with low-inductance path. |
| Y0–Y7 (Pins 19,18,17,15,14,13,12,9) | Active-low decoded outputs | Only one output pulls LOW per valid input/enable state; remaining seven stay HIGH - eliminates need for external pull-ups in open-drain applications. |
Key Features
| Feature | Design Value |
|---|---|
| Three enable inputs (G1, G2A, G2B) | Enables hierarchical decoding up to 32 lines using only one external inverter - reduces board area and interconnect complexity in multi-bank memory systems. |
| Active-low outputs | Directly interfaces with N-channel MOSFETs or NPN transistors for low-side LED/column driving without inversion logic - simplifies display matrix scan circuitry. |
| Wide supply range (2 V–6 V) | Supports interoperability across mixed-voltage systems (e.g., 3.3 V FPGA control + 5 V peripheral bus) without external regulators or level shifters. |
| Low input current (±1 µA max) | Prevents excessive loading on microcontroller GPIOs or FPGA I/O banks - critical for high-density address/data buses with >100 fan-out requirements. |
| MIL-PRF-38535 Class B qualification | Guarantees burn-in, temperature cycling, and radiation tolerance per military screening standards - required for flight-critical and space-qualified hardware. |
Applications
| Avionics Display Control | Radar Signal Processing Backplane |
|---|---|
|
Use Scenario: Selecting column drivers in monochrome CRT or segmented LCD displays within cockpit instrumentation. IC Role / Device Role / Timing Role: 3-to-8 decoder providing synchronized low-side sink for 8 parallel display segments under real-time CPU command. Use Value: 15 ns tpd ensures pixel update latency remains below 100 ns - meeting MIL-STD-810G display response requirements for tactical HUDs. |
Use Scenario: Routing ADC sample streams from multiple RF receiver channels to shared DSP resources in phased-array radar cabinets. IC Role / Device Role / Timing Role: Demultiplexer steering time-sliced analog front-end data to dedicated processing lanes based on channel ID. Use Value: ±4 mA drive capability sustains signal integrity over 15 cm backplane traces at 10 MHz switching - eliminating repeater ICs. |
| Hardened Power Management Unit | Tactical Vehicle Communication Node |
|
Use Scenario: Enabling/disabling DC-DC converter rails in radiation-hardened power sequencers for satellite payload subsystems. IC Role / Device Role / Timing Role: Fault-isolated decoder asserting enable signals to isolated buck controllers under watchdog-controlled sequencing logic. Use Value: –55°C to +125°C operation allows direct mounting on heatsinks inside sealed, conduction-cooled enclosures - no derating needed. |
Use Scenario: Address decoding for dual-port SRAM used in secure voice/data encryption modules deployed in armored vehicle ECU bays. IC Role / Device Role / Timing Role: Memory address demuxer selecting one of eight SRAM banks during burst-mode packet buffering operations. Use Value: 160 µA ICC enables <1 µW standby power per decoder - extending battery life in manpack radios during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-to-8 decoder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54HC138FK | Same LCCC-20 package, identical pinout and electrical specs; differs only in part marking and screening documentation per JAN standard. | Approved for NASA GSFC-STD-7000A but lacks QML-V certification - acceptable for non-flight terrestrial test benches. | Select SNJ54HC138FK if full QML-V traceability is not mandated and cost sensitivity outweighs extended reliability reporting. |
| JM38510/65802BEA | CDIP-16 package (21.34 mm × 6.92 mm); same die, wider body, through-hole mounting; higher RθJA (not specified) due to larger thermal mass. | Suitable for lab prototypes and repair of legacy chassis-mounted systems where LCCC rework is impractical. | Choose JM38510/65802BEA when mechanical compatibility with existing CDIP footprints or hand-soldering capability is prioritized over size and weight constraints. |
Compared with SNJ54HC138FK and JM38510/65802BEA, JM38510/65802B2A provides the highest packaging density and certified QML-V process control - making it the sole choice for new-design flight hardware requiring zero-defect lot traceability and radiation hardness assurance.
Availability
JM38510/65802B2A is available at Aetrix Electronics and suitable for avionics display control, radar signal processing backplanes, and hardened power management units requiring stable component supply under extended temperature and radiation-exposed conditions.
Supply support for JM38510/65802B2A 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 components, with over 50 years of heritage in aerospace-grade IC development.
JM38510/65802B2A belongs to TI's military 74HC logic family, engineered specifically for high-speed, low-power decoding in safety-critical platforms where failure is not an option - including flight control computers and missile guidance subsystems.
FAQ
What is the maximum operating temperature for JM38510/65802B2A?
JM38510/65802B2A is rated for continuous operation from –55°C to +125°C per MIL-PRF-38535 Class B requirements. This range is validated through temperature cycling, burn-in, and parametric testing - ensuring functionality in jet engine bays, satellite payloads, and desert-deployed communication nodes where ambient extremes exceed commercial limits.
Does JM38510/65802B2A support 3.3 V logic levels?
Yes, JM38510/65802B2A supports 3.3 V operation with guaranteed VIH(min) = 2.0 V and VIL(max) = 0.8 V at VCC = 3.3 V, enabling direct interfacing with 3.3 V FPGAs and microcontrollers without level translation - confirmed in Section 6.3 Recommended Operating Conditions of the SCLS107G datasheet.
How many enable inputs does JM38510/65802B2A have, and what are their polarities?
JM38510/65802B2A has three enable inputs: G1 (active-high), G2A (active-low), and G2B (active-low). All three must be simultaneously asserted (G1 = HIGH, G2A = LOW, G2B = LOW) for any output to respond to A/B/C inputs - a feature documented in Table 8-1 Function Table of the SCLS107G datasheet.
Can JM38510/65802B2A be used in demultiplexing applications?
Yes, JM38510/65802B2A can function as a 1-to-8 demultiplexer: applying data to any enable input (e.g., G1) while holding the other two enables constant allows the selected output to mirror the data state - a capability explicitly described in Section 8.3 Feature Description and Figure 9-1 LED Matrix Driver Application of the SCLS107G datasheet.
What is the typical propagation delay of JM38510/65802B2A at 5 V supply?
The typical propagation delay (tpd) of JM38510/65802B2A is 18 ns from A/B/C or enable inputs to any Y output at VCC = 5 V and CL = 50 pF, as specified in Section 6.11 Switching Characteristics: SN54HC138 of the SCLS107G datasheet - matching the performance of commercial SN54HC138 variants under identical test conditions.
JM38510/65802B2A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54HC
- Package/Case:
- 20-CLCC
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Decoder/Demultiplexer
- Circuit:
- 1 x 3:8
- Independent Circuits:
- 1
- 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:
- Surface Mount
- Supplier Device Package:
- 20-LCCC (8.89x8.89)
JM38510/65802B2A FAQ
1.How can I place an order for JM38510/65802B2A through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/65802B2A 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 JM38510/65802B2A reliable?
The price and inventory of JM38510/65802B2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/65802B2A is usually 5 days.
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4.How is shipping managed for JM38510/65802B2A?
JM38510/65802B2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/65802B2A 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 JM38510/65802B2A?
For technical support, including JM38510/65802B2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/65802B2A requirements.
6.How does Aetrix verify that JM38510/65802B2A is sourced from the original manufacturer or authorized distributors?
All JM38510/65802B2A 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 JM38510/65802B2A meets industry standards.
7.What is the process for return or replacement of JM38510/65802B2A?
All JM38510/65802B2A units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/65802B2A, 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 JM38510/65802B2A part is unused and in its original packaging.
Return procedure for JM38510/65802B2A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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