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Texas Instruments JM38510/33203BRA
- Part No.:
- JM38510/33203BRA
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
JM38510/33203BRA.pdf
- Description:
- 54F244 OCTAL BUFFERS/DRIVERS WIT
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Product details
Overview
JM38510/33203BRA from Texas Instruments is a military-grade octal noninverting buffer/line driver with dual 4-bit sections, 3-state outputs, and separate active-low output-enable (OE) inputs. It operates across −55°C to 125°C, delivers 48 mA low-level output current, and features 5.2 ns max propagation delay (A→Y) at 5 V. It is used in high-reliability memory address buffering and bus driving applications in aerospace and defense systems.
For engineers reviewing the JM38510/33203BRA datasheet, JM38510/33203BRA pinout, JM38510/33203BRA application, or JM38510/33203BRA equivalent, key selection criteria include military temperature range compliance, CDIP-J package mechanical compatibility, 3-state bus-driving capability, and direct functional equivalence to SN54F244J in legacy MIL-PRF-38535 Class B designs.
Technical Context
This device implements two independent 4-bit noninverting buffer sections, each with dedicated active-low OE control enabling true 3-state output behavior. Its TTL-compatible input thresholds (VIL = 0.8 V, VIH = 2 V) and output drive strength (IOL = 48 mA, IOH = −12 mA) support robust interfacing with legacy 5-V logic families.
Propagation delays are tightly specified: tPLH/tPHL ≤ 5.2 ns (SN54F244), with enable/disable timing (tPZH/tPLZ ≤ 7 ns) ensuring clean bus arbitration. Absolute maximum ratings include −0.5 V to 7 V supply voltage and −1.2 V to 7 V input voltage-critical for system-level ESD and fault tolerance in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Octal noninverting buffer with dual 4-bit sections and independent active-low OE inputs |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with standard 5-V TTL power rails and tolerant of nominal ±10% variation |
| Operating Temperature | −55°C to 125°C - qualified per MIL-PRF-38535 Class B for extended environmental operation |
| Output Drive (Low) | 48 mA - sufficient to drive 50-Ω transmission lines or multiple TTL loads without external buffering |
| Propagation Delay (A→Y) | ≤5.2 ns at VCC = 5 V, CL = 50 pF - enables reliable operation in high-speed address/data bus timing budgets |
| 3-State Leakage | ±50 µA at VO = 0.5 V or 2.7 V - ensures minimal bus contention during output disable |
| Input Thresholds | VIL = 0.8 V, VIH = 2.0 V - matches standard TTL logic levels for seamless integration into legacy systems |
Pinout & Package
Package: 20-pin Ceramic Dual-In-Line Package (CDIP), J package drawing, 0.300-inch wide body, through-hole mounting. Compliant with MIL-STD-1835 and JEDEC MS-001.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 6, 8, 11, 13, 15, 17 | A1–A4, Y1–Y4 (Section 1); A1–A4 (Section 2) | Section 1 data inputs (1A1–1A4) and outputs (1Y1–1Y4); Section 2 inputs (2A1–2A4) |
| 3, 5, 7, 9, 12, 14, 16, 18 | Y4–Y1 (Section 1); Y1–Y4 (Section 2) | Section 1 outputs (2Y4–2Y1) and Section 2 outputs (2Y1–2Y4) - arranged for interleaved routing |
| 10 | GND | Power ground reference for all internal circuitry and output stages |
| 20 | VCC | +5 V supply rail connection - decoupling required within 0.5 inch per MIL-HDBK-454 |
| 19, 10 (redundant) | 1OE, 2OE | Active-low output-enable controls - independently disable Section 1 or Section 2 outputs to high-impedance state |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 4-bit sections | Enables selective bus segmentation - one section can drive address lines while the other drives control signals |
| 3-State outputs with symmetrical OE | Eliminates bus contention in shared-memory architectures by allowing precise timing-controlled output disable |
| MIL-PRF-38535 Class B qualification | Guarantees screening, testing, and traceability per military reliability standards including burn-in and lot acceptance tests |
| TTL-compatible input/output interface | Direct drop-in replacement for legacy 74F244-based designs without level-shifting or redesign |
| High noise immunity | Input clamp current ≥ −18 mA and VIK = −1.2 V ensure robust operation under transient coupling or ground bounce |
Applications
| Avionics Data Bus Interface | Rad-Hard Memory Address Buffering |
|---|---|
Use Scenario: Isolating and driving multiplexed address/data buses between flight computer modules and radiation-tolerant SRAM banks. IC Role / Device Role / Timing Role: Noninverting buffer providing bidirectional 3-state isolation and fanout amplification for 16-bit address lines. Use Value: Enables deterministic bus arbitration with <5.2 ns propagation delay and guaranteed −55°C to 125°C operation under thermal cycling. |
Use Scenario: Driving address registers in onboard telemetry storage subsystems exposed to extended temperature extremes and ionizing radiation. IC Role / Device Role / Timing Role: Octal line driver translating microcontroller address outputs to memory IC inputs with controlled slew and noise margin. Use Value: Delivers 48 mA drive strength and ±50 µA 3-state leakage to maintain signal integrity across 20+ inch PCB traces in high-vibration environments. |
| Secure Crypto Module I/O Expansion | Tactical Radio Control Plane Buffering |
Use Scenario: Expanding GPIO capability in NSA-certified cryptographic hardware where tamper-resistant layout and long-term component availability are mandatory. IC Role / Device Role / Timing Role: Dual-section buffer isolating secure processor I/O from peripheral control logic with independent OE gating. Use Value: Supports MIL-STD-883 Class B screening and 20-year obsolescence mitigation via CDIP-J package continuity. |
Use Scenario: Level-shifting and bus-driving between FPGA-based baseband processors and analog front-end ASICs in manpack radios. IC Role / Device Role / Timing Role: 3-state bus transceiver enabling time-division multiplexing of control signals across shared interconnects. Use Value: Provides sub-6 ns timing margins and −1.2 V input clamping to withstand RF-induced transients on vehicle-mounted platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN54F244J | Identical electrical specs, same CDIP-J package, but commercial-screened (non-QML) version without MIL-PRF-38535 documentation traceability | Lacks full Class B test documentation and lot traceability required for DoD procurement | Select SN54F244J only for non-certified prototypes or cost-sensitive non-military reuse |
| JM38510/33203B2A | Same functionality and temperature range, but packaged in 20-pin LCCC (FK) instead of CDIP-J - surface-mount, hermetic ceramic | Requires PCB redesign for land pattern and reflow profile; preferred for SWaP-constrained avionics | Choose JM38510/33203B2A when board space, vibration resistance, or automated assembly outweigh through-hole serviceability needs |
Compared with SN54F244J, JM38510/33203BRA provides auditable QML Class B compliance and full MIL-PRF-38535 documentation; compared with JM38510/33203B2A, it retains legacy through-hole compatibility while delivering identical performance and screening rigor.
Availability
JM38510/33203BRA is available at Aetrix Electronics and suitable for avionics data bus interface, rad-hard memory address buffering, and secure crypto module I/O expansion requiring stable component supply across extended product lifecycles.
Supply support for JM38510/33203BRA 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 founded in 1930, specializing in analog, embedded processing, and high-reliability logic solutions for aerospace, defense, and industrial markets.
JM38510/33203BRA belongs to TI's military logic family derived from the 74F244 architecture, engineered specifically for high-integrity bus driving and memory address buffering in mission-critical systems operating under extreme environmental stress.
FAQ
What is the operating temperature range of the JM38510/33203BRA?
The JM38510/33203BRA is characterized for operation from −55°C to 125°C, meeting MIL-PRF-38535 Class B requirements. This full military temperature range is verified per Test Method 1010 in MIL-STD-883 and applies to all electrical parameters in the datasheet, including propagation delay, output drive, and input thresholds.
Is the JM38510/33203BRA pin-compatible with commercial SN74F244 variants?
No - the JM38510/33203BRA uses the CDIP-J 20-pin package, which matches SN54F244J mechanically and electrically, but differs from SSOP (DB), SOIC (DW), or PDIP (N) packages used by SN74F244 variants. Pinout is identical to SN54F244J, not SN74F244DB or SN74F244N.
Does the JM38510/33203BRA support 3.3-V logic interfacing?
No - the JM38510/33203BRA is a 5-V TTL device with VIH = 2.0 V minimum and VIL = 0.8 V maximum. It is not designed for direct 3.3-V interface; level translation or bus-hold circuits are required when connecting to 3.3-V FPGAs or microcontrollers.
What is the maximum output current capability of the JM38510/33203BRA?
The JM38510/33203BRA delivers up to 48 mA per output in the low state (IOL) and −12 mA in the high state (IOH), as specified under recommended operating conditions (VCC = 4.5 V to 5.5 V, TA = −55°C to 125°C). These values are validated per MIL-STD-883 Method 3013.
How does the JM38510/33203BRA differ from the JM38510/33203B2A?
The JM38510/33203BRA and JM38510/33203B2A share identical logic function, electrical specs, and temperature range, but differ in packaging: JM38510/33203BRA uses 20-pin CDIP-J (through-hole), while JM38510/33203B2A uses 20-pin LCCC-FK (surface-mount ceramic). The pinout is identical, but PCB layout and assembly processes differ significantly.
JM38510/33203BRA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
JM38510/33203BRA FAQ
1.How can I place an order for JM38510/33203BRA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/33203BRA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of JM38510/33203BRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/33203BRA is usually 5 days.
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Once your JM38510/33203BRA order is processed, you will receive an email with the shipment details and tracking number.
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5.How can I obtain technical support or documentation for JM38510/33203BRA?
For technical support, including JM38510/33203BRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/33203BRA requirements.
6.How does Aetrix verify that JM38510/33203BRA is sourced from the original manufacturer or authorized distributors?
All JM38510/33203BRA 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 JM38510/33203BRA meets industry standards.
7.What is the process for return or replacement of JM38510/33203BRA?
All JM38510/33203BRA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/33203BRA, 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 JM38510/33203BRA part is unused and in its original packaging.
Return procedure for JM38510/33203BRA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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