Texas Instruments JM38510/65602SRA

Overview

JM38510/65602SRA from Texas Instruments is a military-grade 8-bit D-type transparent latch with 3-state outputs, designed for high-reliability bus interface and data buffering in avionics and defense systems. It operates across 2 V to 6 V, delivers ±6-mA output drive at 5 V, features typical propagation delay of 14 ns, and supports full parallel loading with edge-triggered clocking on CLK↑.

For engineers reviewing the JM38510/65602SRA datasheet, JM38510/65602SRA pinout, JM38510/65602SRA application, or JM38510/65602SRA equivalent, this device serves as a radiation-tolerant, high-drive, low-power octal flip-flop for synchronous data capture and tri-state bus control in harsh-environment digital subsystems.

Technical Context

The JM38510/65602SRA implements eight independent edge-triggered D-type flip-flops sharing a common clock (CLK) and output-enable (OE) input. Each flip-flop captures the logic level present at its D input on the rising edge of CLK and holds it until the next clock transition.

OE controls all eight outputs simultaneously: when low, outputs reflect Q states (high/low); when high, all outputs enter high-impedance mode without affecting internal latch states. This enables non-intrusive bus sharing and eliminates need for external pull-ups during power sequencing.

Key Specifications

Pinout & Package

Package: Ceramic Dual-In-Line Package (CDIP), 20-pin, hermetically sealed, compliant with MIL-STD-883 Class B screening.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal D-type latch applications.

Compared with SNJ54HC374J and 5962-8407101VRA, JM38510/65602SRA provides verified QML Class V compliance, enhanced neutron fluence tolerance, and full lot traceability required for manned spaceflight and strategic weapon systems integration.

Availability

JM38510/65602SRA is available at Aetrix Electronics and suitable for avionics data acquisition, secure military communication bus, ruggedized industrial PLC I/O module, and spacecraft onboard telemetry interface requiring stable component supply across extended temperature and radiation environments.

Supply support for JM38510/65602SRA 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.

JM38510/65602SRA belongs to TI's military logic product line, engineered specifically for mission-critical applications demanding radiation tolerance, extreme temperature operation, and full MIL-PRF-38535 qualification.

FAQ

What is the absolute maximum supply voltage rating for JM38510/65602SRA?

The absolute maximum supply voltage for JM38510/65602SRA is −0.5 V to +7 V. Operation beyond 6 V violates recommended conditions and risks permanent damage. TI specifies 2 V to 6 V as the functional operating range, with 6 V being the upper limit for reliable, long-term performance in accordance with MIL-PRF-38535 screening protocols. Exceeding 6 V may compromise latch stability and increase ICC beyond 80 µA.

Does JM38510/65602SRA support asynchronous reset or preset functionality?

No, JM38510/65602SRA does not include asynchronous reset or preset inputs. It implements eight edge-triggered D-type flip-flops with only CLK, D, Q, OE, VCC, and GND connections. All state changes occur synchronously on the rising edge of CLK. Any reset or initialization must be performed externally using OE to place outputs in high-impedance state while applying known logic levels to D inputs prior to the next CLK↑ transition.

What is the recommended power-up sequence for JM38510/65602SRA to ensure high-impedance outputs at startup?

To guarantee high-impedance outputs during power-up, OE must be held high (logic 1) before VCC reaches 2 V. TI recommends tying OE to VCC through a pull-up resistor; minimum value depends on driver sink capability but typically 4.7 kΩ suffices. This prevents bus contention during ramp-up and avoids undefined output states that could disrupt downstream logic. The same applies to power-down sequencing.

Can JM38510/65602SRA operate reliably at 2 V supply with full timing specifications?

Yes, JM38510/65602SRA is fully characterized down to 2 V. At 2 V, tpd increases to 120 ns max (vs. 14 ns typical at 5 V), fclock drops to 6 MHz max, and output drive reduces to ±1.2 mA. All parameters remain guaranteed across −55°C to +125°C per MIL-PRF-38535 Class V testing. System designers must verify setup/hold times (tsu = 100 ns min, th = 10 ns min) meet controller timing margins at 2 V.

Is JM38510/65602SRA pin-compatible with commercial SN74HC374 variants?

Yes, JM38510/65602SRA shares identical pinout and logic function with SN74HC374 and SN54HC374 in CDIP-20 package. However, it is not a drop-in replacement due to differences in screening, temperature range, and radiation tolerance. Electrical behavior matches within spec limits, but JEDEC-compliant commercial variants lack MIL-PRF-38535 qualification, making them unsuitable for flight or defense-critical use even if physically interchangeable.