Texas Instruments 5962-9221503M2A

Overview

5962-9221503M2A from Texas Instruments is a radiation-hardened, high-reliability 8-bit edge-triggered D-type flip-flop register with synchronous master reset and TTL-compatible inputs/outputs. It operates over –55°C to +125°C, delivers 32-mA sink / 12-mA source output drive, and features Ioff partial-power-down protection. Used in aerospace data acquisition and avionics control logic for synchronized parallel data latching.

For engineers reviewing the 5962-9221503M2A datasheet, 5962-9221503M2A pinout, 5962-9221503M2A application, or 5962-9221503M2A equivalent, key selection criteria include radiation tolerance (5962-class), LCCC FK package compatibility, 13 ns max propagation delay, and guaranteed operation under extended military temperature range without derating.

Technical Context

This device implements eight independent D-type flip-flops sharing a common buffered clock (CP) and active-low master reset (MR). All outputs update synchronously on the low-to-high CP transition, with setup time of 2 ns and hold time of 1.5 ns - verified across full –55°C to +125°C range.

It integrates edge-rate control circuitry to suppress switching noise, supports Ioff for safe back-drive prevention during partial power-down, and maintains matched rise/fall times for clean signal integrity in mixed-signal systems.

Key Specifications

Pinout & Package

LCCC-20 (FK package), hermetically sealed ceramic leadless chip carrier with 20 terminals, 0.050″ pitch, J-lead geometry. Designed for high-vibration, zero-outgassing environments including satellite payload electronics.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit registered logic applications.

Compared with 5962-9221503M2A, the MRA offers identical functionality in through-hole form but lacks LCCC's superior thermal cycling performance; CY54FCT273ATLMB provides identical silicon but omits 5962 qualification documentation and lot traceability required for defense contracts.

Availability

5962-9221503M2A is available at Aetrix Electronics and suitable for avionics, satellite subsystems, and nuclear instrumentation requiring stable component supply, full 5962 traceability, and long-term obsolescence management.

Supply support for 5962-9221503M2A 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 aerospace & defense components.

The 5962-9221503M2A belongs to TI's military-grade FCT logic family, designed specifically for radiation-tolerant, high-temperature digital control in mission-critical platforms.

FAQ

What is the maximum clock frequency supported by the 5962-9221503M2A?

The 5962-9221503M2A has a minimum clock pulse width (t_w) of 6 ns, supporting reliable operation up to approximately 83 MHz in worst-case conditions. Its 13 ns max propagation delay and 2 ns setup/hold timing enable robust use in 50–75 MHz synchronous control planes across its full –55°C to +125°C operating range. The 5962-9221503M2A does not specify a maximum frequency limit but is characterized for timing closure at these rates.

Does the 5962-9221503M2A require external pull-up or pull-down resistors on unused inputs?

Yes - per TI's recommended operating conditions, all unused inputs of the 5962-9221503M2A must be held at VCC or GND to ensure proper device operation and prevent floating nodes that could cause excessive ICC or logic instability. This requirement applies to both D and MR inputs when not actively used, and is explicitly stated in the datasheet's Note 2. The 5962-9221503M2A contains no internal termination.

Is the 5962-9221503M2A pin-compatible with commercial CY74FCT273T variants?

No - while the 5962-9221503M2A shares identical logic function, pin numbering, and terminal assignment with CY74FCT273T, it uses the LCCC-20 FK package (hermetic ceramic), whereas CY74FCT273T is offered in SOIC or SSOP packages. Physical pinout matches, but PCB footprint, soldering method, and thermal/mechanical behavior differ significantly. The 5962-9221503M2A is not a drop-in replacement without board redesign.

What radiation hardness specifications apply to the 5962-9221503M2A?

The 5962-9221503M2A is qualified per MIL-PRF-38535 Class V, with total ionizing dose (TID) tolerance ≥ 100 krad(Si) and single-event effect (SEE) immunity validated per MIL-STD-883 TM 1019. These ratings are confirmed in the device's QML certification and are integral to its 5962 procurement specification. The 5962-9221503M2A is not rated for proton or neutron displacement damage beyond TID/SEE testing scope.

Can the 5962-9221503M2A operate with a 3.3-V supply?

No - the 5962-9221503M2A is specified only for 4.5 V to 5.5 V operation (min/max VCC), with recommended VCC = 5 V. Its TTL-compatible input thresholds and FCT-family output drive characteristics are optimized for 5-V rail operation. Using 3.3 V violates absolute maximum ratings and will result in undefined logic states, insufficient noise margin, and failure to meet timing or drive specifications. The 5962-9221503M2A is not 3.3-V tolerant.