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Texas Instruments DM77S184J-MIL — Analog & Data Acquisition
Texas Instruments

DM77S184J-MIL OTP ROM, 2Kx4, 75 ns, CDIP18, Active

MPNDM77S184J-MIL
End of Life

DM77S184J-MIL, OTP ROM, 2KX4, 75NS, TTL, CDIP18

$15.0Ref. price · indicative, final on quote
DM77S184J-MIL datasheet
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MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

DM77S184J-MIL Technical Specifications
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Product details

What this part is and where it fits

The DM77S184J-MIL is a 2Kx4 OTP ROM in a CDIP18 package, with 75 ns access time and TTL-compatible I/O.

75 ns access time — what it means for the bus

A 75 ns access time is specified for this part.

Hermetic CDIP18 package and military temperature range

The CDIP18 package provides a hermetic seal.

RoHS non-compliance — a design constraint

This part is RoHS non-compliant, meaning the internal solder and lead finish contain lead. For new designs in jurisdictions requiring RoHS (EU, California, etc.), an exemption must be in place for military/aerospace applications, or the part must be used under a specific regulatory allowance. For maintenance and repair of legacy military systems, this is typically not a barrier — the original BOM specified tin-lead solder and the assembly line is set up for it. For any new commercial or industrial design, the non-compliance should trigger a review of the solder process and end-market regulations.

Sourcing posture

No last-time-buy or obsolescence notice applies.

Frequently asked questions

Can DM77S184J-MIL be programmed with a standard EPROM programmer?

The DM77S184J-MIL is an OTP ROM, not an EPROM. OTP ROMs are factory-programmed or programmed by the distributor before shipment; they cannot be erased or reprogrammed. A standard EPROM programmer may be able to program the device if the programmer supports this specific order code and the programming algorithm is available, but the user must verify the programming voltage and timing from the full datasheet — the evidence does not specify the programming voltage.

Is DM77S184J-MIL compatible with 27C32?

The 27C32 is a 32 Kbit (4Kx8) UV EPROM in a 24-pin or 28-pin package, while the DM77S184J-MIL is an 8 Kbit (2Kx4) OTP ROM in an 18-pin CDIP. They differ in density, organisation, package, and technology (UV-erasable vs. one-time programmable). They are not pin-compatible or function-compatible without significant board redesign.