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Texas Instruments JM38510/34105BRA
- Part No.:
- JM38510/34105BRA
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-CDIP (0.300", 7.62mm)
- Datasheet:
-
JM38510/34105BRA.pdf
- Description:
- OCTAL EDGE-TRIGGERED D-TYPE FLIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,143
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Product details
Overview
JM38510/34105BRA from Texas Instruments is a military-grade octal D-type flip-flop with 3-state bus-driver outputs, edge-triggered clocking (positive transition), and buffered output enable control. It operates across −55°C to 125°C, delivers 24 mA low-level output drive, supports up to 70 MHz clock frequency, and is used in radiation-tolerant avionics data latching and bidirectional bus interfacing.
For engineers reviewing the JM38510/34105BRA datasheet, JM38510/34105BRA pinout, JM38510/34105BRA application, or JM38510/34105BRA equivalent, key selection criteria include its CDIP-20 ceramic package, full military temperature qualification, 3-state output isolation timing (tPZH = 11.5 ns max), and compatibility with TTL-level control logic in high-reliability digital systems.
Technical Context
This device implements eight independent edge-triggered D flip-flops sharing a common clock (CLK) and output enable (OE) input. Each flip-flop captures D-input logic on the rising edge of CLK and holds state until the next active clock edge, while OE independently places all Q outputs into high-impedance without affecting internal storage.
Its electrical design targets high-noise immunity and robust bus driving: VIH = 2 V min, VIL = 0.8 V max, VOL = 0.5 V max at IOL = 24 mA, and IOZL/IOZH ≤ ±50 µA in disabled state - enabling clean signal isolation in multiplexed backplane and I/O port applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Octal positive-edge-triggered D-type flip-flop with 3-state outputs |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard 5 V TTL and military power rails |
| Operating Temperature | −55°C to 125°C - qualified per MIL-PRF-38535 for space and defense platforms |
| Max Clock Frequency | 70 MHz - enables high-speed data capture in real-time telemetry and command interfaces |
| Output Drive | 24 mA sink current (IOL) - sufficient to drive 50 Ω transmission lines or multiple TTL loads |
| Propagation Delay | tPLH/tPHL ≤ 10 ns (CLK to Q), tPZH ≤ 12.5 ns (OE to Q high-impedance) - ensures tight timing margins in synchronous buses |
| Input Thresholds | VIH = 2.0 V min, VIL = 0.8 V max - guarantees interoperability with legacy TTL and LVTTL logic families |
Pinout & Package
Package: Ceramic Dual-In-Line Package (CDIP), 20-pin, hermetically sealed, lead finish SNPB, RoHS-exempt, MSL N/A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OE (Output Enable) | Active-low control: drives all Q outputs to high-impedance when high; no effect on internal latch state |
| 2–9 | 1D–8D | Data inputs for each of eight flip-flops; sampled on rising CLK edge |
| 11–18 | 1Q–8Q | True (non-inverted) registered outputs; 3-state capable under OE control |
| 10 | GND | Signal ground reference for logic and output drivers |
| 20 | VCC | Positive supply rail (4.5–5.5 V); powers internal logic and output buffers |
| 19 | CLK | Common clock input; rising-edge sensitive for simultaneous data capture across all eight channels |
Key Features
| Feature | Design Value |
|---|---|
| 3-State Bus Driving | Enables direct connection to shared data buses without external pull-ups or interface logic |
| Full Parallel Load Access | All eight D inputs sampled simultaneously on one clock edge - ideal for parallel register loading |
| Buffered Control Inputs | OE and CLK inputs feature Schmitt-trigger-like noise immunity and reduced capacitive loading |
| Military Temperature Range | Qualified from −55°C to 125°C per MIL-PRF-38535 Class B - suitable for launch vehicle and satellite subsystems |
| High-Impedance Output Isolation | IOZL/IOZH ≤ ±50 µA ensures negligible bus leakage during tri-state - critical for fault-containment architectures |
Applications
| Avionics Data Acquisition | Secure Command Interface |
|---|---|
|
Use Scenario: Capturing analog-to-digital converter outputs in flight control computers where data must be latched synchronously before processing. IC Role / Device Role / Timing Role: Octal D flip-flop acting as a synchronized input register; CLK aligned to system timing master, OE held low for continuous readout. Use Value: Ensures deterministic sampling window and eliminates metastability risk across eight sensor channels under vibration and thermal stress. |
Use Scenario: Isolating command signals between secure processor modules and actuator controllers in missile guidance systems. IC Role / Device Role / Timing Role: Bidirectional bus driver with OE-controlled directionality; used to gate encrypted command words onto shared control bus. Use Value: Prevents unintended signal coupling during reset or fault states via hardware-enforced high-impedance isolation. |
| Radiation-Hardened Telemetry Buffer | Legacy System Bus Extender |
|
Use Scenario: Buffering telemetry packet headers in satellite transponders exposed to total ionizing dose (TID) > 100 krad(Si). IC Role / Device Role / Timing Role: Radiation-tolerant latch holding frame sync bits; operates continuously in harsh orbital environment. Use Value: Maintains data integrity without soft errors or parametric shift over mission lifetime due to ceramic CDIP packaging and process hardening. |
Use Scenario: Interfacing modern microcontrollers to legacy 8-bit parallel peripherals (e.g., EPROMs, DACs) using 5 V TTL signaling. IC Role / Device Role / Timing Role: Level-shifting and bus-driving register; translates MCU GPIO timing to legacy peripheral setup/hold requirements. Use Value: Eliminates need for discrete buffer arrays while preserving timing compliance with JEDEC-standard peripheral access cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SNJ54F374J | Identical electrical specs and pinout; same CDIP-20 package and −55°C to 125°C rating; differs only in part marking and procurement channel (non-JAN vs. JAN-qualified) | No functional difference in circuit operation; SNJ54F374J lacks JANTXV-level screening documentation traceability | Select JM38510/34105BRA when full MIL-PRF-38535 Class B conformance and lot traceability are required for DoD programs. |
| 5962-9759001QRA | Same die, identical CDIP-20 package, and identical military temperature range; differs in part numbering convention and test flow per QML-38535 Rev G | Approved for use in NASA GSFC and USAF programs requiring QML-38535 Rev G certification; includes additional burn-in and radiation lot acceptance testing | Choose 5962-9759001QRA for missions requiring QML-38535 Rev G compliance and extended radiation test reports. |
Compared with SNJ54F374J and 5962-9759001QRA, JM38510/34105BRA provides assured JAN-qualified sourcing with full MIL-PRF-38535 Class B documentation, making it preferred for systems requiring auditable pedigree, long-term obsolescence management, and integration into certified defense hardware BOMs.
Availability
JM38510/34105BRA is available at Aetrix Electronics and suitable for avionics data acquisition, secure command interface, radiation-hardened telemetry buffering, and legacy system bus extension requiring stable component supply across extended product lifecycles.
Supply support for JM38510/34105BRA 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.
JM38510/34105BRA belongs to TI's military logic family, designed specifically for high-integrity digital signal routing and latching in environments demanding extreme temperature resilience, radiation tolerance, and long-term reliability.
FAQ
What is the maximum clock frequency supported by JM38510/34105BRA?
JM38510/34105BRA supports a maximum clock frequency of 70 MHz under recommended operating conditions (VCC = 4.5 V to 5.5 V, TA = −55°C to 125°C). This value is specified in the timing characteristics table and validated across the full military temperature range, ensuring reliable operation in high-speed avionics timing paths.
Does JM38510/34105BRA require external pull-up resistors on its 3-state outputs?
No, JM38510/34105BRA does not require external pull-up resistors on its 3-state outputs. Its high-impedance state exhibits IOZL/IOZH ≤ ±50 µA, providing sufficient isolation for direct bus connection. Pull-ups are unnecessary unless specific bus-keeper or fail-safe biasing is mandated by system-level protocol requirements.
Is JM38510/34105BRA pin-compatible with commercial SN74F374 variants?
No, JM38510/34105BRA is not pin-compatible with commercial SN74F374 variants. While both share identical logic functionality and 20-pin DIP pinout numbering, JM38510/34105BRA uses a ceramic CDIP package with different mechanical dimensions, lead finish (SNPB), and thermal characteristics - requiring dedicated PCB footprint and reflow profile.
What is the purpose of the buffered OE input in JM38510/34105BRA?
The buffered OE input in JM38510/34105BRA reduces input capacitance and improves noise immunity compared to unbuffered controls. It allows reliable assertion of high-impedance state across all eight outputs without affecting internal flip-flop states - enabling hot-swap capability and dynamic bus arbitration in fault-tolerant systems.
Can JM38510/34105BRA operate at 3.3 V supply voltage?
No, JM38510/34105BRA is not rated for 3.3 V operation. Its recommended supply voltage range is strictly 4.5 V to 5.5 V, and absolute maximum ratings do not extend below 4.5 V. Operation at 3.3 V may result in undefined logic levels, timing violations, or failure to meet military temperature specifications.
JM38510/34105BRA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 54F
- Package/Case:
- 20-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 100 MHz
- Max Propagation Delay @ V, Max CL:
- 8.5ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 3mA, 20mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 86 mA
- Input Capacitance:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-CDIP
JM38510/34105BRA FAQ
1.How can I place an order for JM38510/34105BRA through Aetrix?
Please submit a Request for Quotation (RFQ) for JM38510/34105BRA 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 JM38510/34105BRA reliable?
The price and inventory of JM38510/34105BRA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JM38510/34105BRA is usually 5 days.
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4.How is shipping managed for JM38510/34105BRA?
JM38510/34105BRA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JM38510/34105BRA 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 JM38510/34105BRA?
For technical support, including JM38510/34105BRA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JM38510/34105BRA requirements.
6.How does Aetrix verify that JM38510/34105BRA is sourced from the original manufacturer or authorized distributors?
All JM38510/34105BRA 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 JM38510/34105BRA meets industry standards.
7.What is the process for return or replacement of JM38510/34105BRA?
All JM38510/34105BRA units undergo pre-shipment inspection (PSI). If there is an issue with JM38510/34105BRA, 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 JM38510/34105BRA part is unused and in its original packaging.
Return procedure for JM38510/34105BRA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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