The SNJ54LS244J is an octal buffer and line driver with 3-state outputs manufactured by Texas Instruments, part of the industry-standard 54LS low-power Schottky TTL logic family. Housed in a hermetically sealed ceramic dual-in-line package (CDIP), the device features eight non-inverting buffer lines arranged as two independent 4-bit sections, each controlled by a separate active-low output enable. This architecture allows the outputs to enter a high-impedance state, making the part well-suited for driving bus lines or buffering heavily loaded signals. Typical electrical characteristics include a standard 5V supply, propagation delays in the low nanosecond range, and balanced drive capability suited to backplane and memory interface environments.
Designed for high-reliability embedded systems, the SNJ54LS244J operates across a full military temperature range (-55°C to +125°C) and is frequently deployed in aerospace flight control, defense radar processing, and ruggedized industrial data-acquisition platforms. The device serves as a signal buffer for microprocessor address and data buses, a line driver for clock distribution, or a memory array interface where reliable three-state control prevents bus contention. From a procurement standpoint, the SNJ54 prefix confirms conformance to MIL-PRF-38535 processing and screening standards, delivering the traceability and long-term reliability demanded by defense and space programs. As an LS-TTL legacy product, supply continuity should be evaluated against evolving fabrication roadmaps; sourcing through authorized channels with full lot documentation remains essential for mission-critical applications.
| Attribute | Value |
|---|---|
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Input Type | Schmitt Trigger |
| Output Type | 3-State |
| Current - Output High, Low | 12mA, 12mA |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -55°C ~ 125°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | 20-CDIP (0.300in, 7.62mm) |
| Supplier Device Package | 20-CDIP |
| Package (last character J) | CDIP, 20-lead |
| High-Level Output Current (IOH) | -12 mA |
| Low-Level Output Current (IOL) | 12 mA |
| Supply Voltage (VCC) | 4.5 V to 5.5 V(NOM 5 V) |
| Storage Temperature (Tstg) | -65°C to 150°C |
| Base Device | SN54LS244 |
| Function | Octal buffer / line driver, 3-state outputs |
Download the current available datasheet for SNJ54LS244J.
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