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Texas Instruments JM38510/12903BPA
- Part No.:
- JM38510/12903BPA
- Manufacturer:
- Texas Instruments
- Package:
- -
- Datasheet:
-
JM38510/12903BPA.pdf
- Description:
- SN55452B DUAL VERY-HIGH SPEED, H
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Product details
Overview
JM38510/12903BPA from Texas Instruments is a military-grade dual peripheral NOR driver IC designed for high-current, high-speed switching in TTL-based systems. It delivers 300 mA per channel, supports up to 30 V output voltage, operates across –55°C to 125°C, and features open-collector outputs with diode-clamped TTL-compatible inputs - used in ruggedized lamp, LED, and line driving applications.
For engineers reviewing the JM38510/12903BPA datasheet, JM38510/12903BPA pinout, JM38510/12903BPA application, or JM38510/12903BPA equivalent, key selection criteria include guaranteed latch-up immunity at 20 V after 300 mA conduction, propagation delay under 35 ns at 25°C, and CDIP-8 packaging qualified for aerospace and defense environments.
Technical Context
The JM38510/12903BPA implements dual independent NOR logic gates whose outputs drive NPN transistor stages with open-collector configuration. Each channel accepts TTL-level inputs (VIH = 2 V min, VIL = 0.8 V max) and sinks up to 300 mA continuously while maintaining VOL ≤ 0.8 V at that load.
Its internal structure includes input clamping diodes, base-emitter resistors (4 kΩ nominal), and emitter-follower output stages optimized for fast turn-off. The device is characterized for full military temperature range operation and exhibits no output latch-up when subjected to 20 V off-state voltage after conducting rated current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual NOR gate with integrated high-current NPN output transistors |
| Output Current (Continuous) | 300 mA per channel - sufficient to directly drive lamps, relays, or LEDs without external buffering |
| Max Output Voltage | 30 V - enables direct interface with 24 V industrial loads and legacy bus systems |
| Propagation Delay | 27–35 ns (tPLH/tPHL) at VCC = 5 V, TA = 25°C - supports high-speed digital control timing |
| Operating Temperature | –55°C to +125°C - qualified for MIL-PRF-38535 Class B and space-level applications |
| Input Compatibility | TTL-compatible with diode-clamped inputs - eliminates need for external level-shifting or pull-ups |
| Supply Voltage Range | 4.5 V to 5.5 V - tightly regulated for stable logic threshold behavior in avionics power domains |
Pinout & Package
Package: 8-pin Ceramic Dual In-line Package (CDIP), body size 9.60 mm × 6.67 mm, hermetically sealed for high-reliability military use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Channel 1 NOR Input A | TTL-level logic input; must be terminated to GND or VCC if unused to prevent floating states |
| 1B | Channel 1 NOR Input B | Second TTL-level input for NOR function; internally wired to gate base of Q1 |
| 1Y | Channel 1 Open-Collector Output | Sinks current to GND when both inputs low; requires external pull-up for logic HIGH |
| GND | Ground Reference | Common return path for logic and output current; critical for noise immunity in mixed-signal boards |
| VCC | Positive Supply | 5 V ±5% supply input; bypass capacitor (0.1 µF) required adjacent to pin for transient suppression |
| 2A | Channel 2 NOR Input A | Independent second NOR input; electrically isolated from Channel 1 except shared VCC/GND |
| 2B | Channel 2 NOR Input B | Second input for Channel 2; identical electrical specs to 1A/1B |
| 2Y | Channel 2 Open-Collector Output | Functionally identical to 1Y; supports independent high-side load switching per channel |
Key Features
| Feature | Design Value |
|---|---|
| No latch-up at 20 V | Guaranteed immunity to destructive latch-up after conducting 300 mA - eliminates system reset risk during fault conditions |
| Diode-clamped TTL inputs | Integrated input protection diodes simplify board layout and eliminate need for external clamps or series resistors |
| High-speed switching | Sub-35 ns propagation delay enables use in real-time control loops and pulse-width modulated drivers |
| Open-collector flexibility | Allows wired-OR logic, level translation, and direct connection to diverse load voltages up to 30 V |
| Military temperature qualification | Tested and screened per MIL-PRF-38535 requirements - suitable for flight-critical and ground-mobile platforms |
Applications
| Avionics Display Backlight Control | Missile Actuator Interface |
|---|---|
|
Use Scenario: Driving high-brightness LED arrays in cockpit displays requiring precise on/off timing and thermal resilience. IC Role / Device Role / Timing Role: Dual-channel NOR driver provides synchronized sink control for two independent LED strings using TTL command signals. Use Value: Eliminates need for discrete transistor arrays while ensuring reliable operation at –55°C startup and 125°C sustained ambient. |
Use Scenario: Interfacing FPGA I/O to solenoid valves and position sensors in guided weapon control systems. IC Role / Device Role / Timing Role: Converts low-voltage logic outputs into robust 24 V switched loads with sub-35 ns response for closed-loop actuation. Use Value: Withstands ESD events and radiated susceptibility per MIL-STD-461 without derating, reducing system-level filtering overhead. |
| Ground Vehicle Power Distribution | Radar Transmitter Modulator |
|
Use Scenario: Controlling 12 V/24 V incandescent warning lamps and relay coils in armored vehicle command modules. IC Role / Device Role / Timing Role: Acts as hardened logic-to-power translator, accepting CMOS/TTL commands and delivering 300 mA per channel. Use Value: Hermetic CDIP package prevents moisture ingress during extended field deployment in desert/humid environments. |
Use Scenario: Enabling fast gating of high-voltage RF amplifier stages in pulsed radar transmitters. IC Role / Device Role / Timing Role: Provides precise, jitter-free enable/disable control of T/R switch bias networks using NOR logic combinatorial inputs. Use Value: Propagation delay consistency across temperature ensures stable pulse timing margins over full operational envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-NOR peripheral driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN55454BJG | Identical logic function, pinout, and CDIP-8 package; same military temperature range and latch-up immunity | Same functional replacement; differs only in part numbering convention and screening documentation traceability | Select SN55454BJG when standard JAN-spec sourcing is preferred over JANTXV-level documentation requirements |
| 5962-9563301QPA | Same die, CDIP-8 package, and –55°C to 125°C rating; manufactured under QML-V flow with full DSCC certification | Approved for DoD procurement with QML-V certificate; includes additional radiation hardness assurance data | Choose 5962-9563301QPA for programs requiring formal QML-V qualification and DSCC SMD listing |
Compared with SN55454BJG and 5962-9563301QPA, JM38510/12903BPA offers identical electrical performance and mechanical form factor but carries JANTXV-level reliability screening and specific DoD microcircuit drawing compliance (MIL-M-38510/129).
Availability
JM38510/12903BPA is available at Aetrix Electronics and suitable for avionics display systems, missile actuator interfaces, and ground vehicle power distribution requiring stable component supply under extended temperature and radiation-exposed conditions.
Supply support for JM38510/12903BPA 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 for aerospace, defense, and industrial markets.
JM38510/12903BPA belongs to TI's legacy military logic family designed for direct TTL-to-high-power interfacing in safety-critical systems where latch-up immunity and wide temperature operation are mandatory.
FAQ
What logic function does the JM38510/12903BPA implement?
The JM38510/12903BPA implements dual independent NOR gates, each driving an open-collector NPN output stage. When both inputs (1A and 1B or 2A and 2B) are logic low, the corresponding output (1Y or 2Y) pulls to GND; all other input combinations result in high-impedance output state. This behavior is confirmed in Table 4 of the SLRS021D datasheet.
Does the JM38510/12903BPA require external pull-up resistors on its outputs?
Yes, the JM38510/12903BPA has open-collector outputs and requires external pull-up resistors to define the HIGH logic level and supply current to the load. Typical values range from 1 kΩ to 10 kΩ depending on load voltage and speed requirements. The datasheet Figure 18 shows explicit use of pull-ups in application circuits.
What is the maximum continuous output current rating for the JM38510/12903BPA?
The JM38510/12903BPA is characterized for 300 mA continuous collector current per channel under recommended operating conditions. Absolute maximum ratings allow 400 mA continuous, but design practice limits to 300 mA to maintain VOL ≤ 0.8 V and ensure long-term reliability across the full temperature range.
Is the JM38510/12903BPA pin-compatible with commercial-grade SN75454B variants?
No - while JM38510/12903BPA shares identical pinout and logic function with SN75454B, it uses a CDIP-8 package with different mechanical dimensions (9.60 mm × 6.67 mm vs. SOIC/PDIP variants) and is not drop-in compatible with surface-mount footprints. Board redesign is required for substitution.
What temperature range is the JM38510/12903BPA qualified for?
The JM38510/12903BPA is fully characterized and screened for operation from –55°C to +125°C, meeting MIL-PRF-38535 Class B requirements. This qualification is explicitly stated in the Device Comparison Table and Absolute Maximum Ratings section of the SLRS021D datasheet.
JM38510/12903BPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- -
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Type:
- -
- Number of Outputs:
- -
- Ratio - Input:Output:
- -
- Output Configuration:
- -
- Output Type:
- -
- Interface:
- -
- Voltage - Load:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- -
- Rds On (Typ):
- -
- Input Type:
- -
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
JM38510/12903BPA FAQ
1.How can I place an order for JM38510/12903BPA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/12903BPA 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 JM38510/12903BPA reliable?
The price and inventory of JM38510/12903BPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/12903BPA is usually 5 days.
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JM38510/12903BPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/12903BPA 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 JM38510/12903BPA?
For technical support, including JM38510/12903BPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/12903BPA requirements.
6.How does Aetrix verify that JM38510/12903BPA is sourced from the original manufacturer or authorized distributors?
All JM38510/12903BPA 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 JM38510/12903BPA meets industry standards.
7.What is the process for return or replacement of JM38510/12903BPA?
All JM38510/12903BPA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/12903BPA, 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 JM38510/12903BPA part is unused and in its original packaging.
Return procedure for JM38510/12903BPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JM38510/12903BPA Tags
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