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Texas Instruments 93Z667DMQB65 — Memory (DRAM / SRAM / Flash / EEPROM)
Texas Instruments

AMD 93Z667DMQB65 OTP ROM, 8K x 8, 65 ns, TTL

MPN93Z667DMQB65
End of Life

AMD 93Z667DMQB65 OTP ROM, 8K x 8, 65 ns access time, TTL interface, Bulk package.

$109.63Ref. price · indicative, final on quote
93Z667DMQB65 datasheet
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Specifications

93Z667DMQB65 Technical Specifications
ParameterValue
Series*
Package_typeBulk

Product details

65 ns OTP ROM — what it is and where it fits

The AMD 93Z667DMQB65 is a one-time programmable read-only memory organized as 8K x 8 bits, with a 65 ns access time and TTL-compatible I/O. This is a legacy memory part designed for firmware storage in embedded systems where the code is finalized before production and no field updates are needed. Typical applications include boot code storage in industrial controllers, telecom line cards, and test equipment where a mask ROM is too expensive but an EPROM's UV erasure is unnecessary.

OTP memory: no field updates possible

Because this is OTP (one-time programmable), the firmware must be fully validated before programming. There is no UV erasure window and no electrical erase — once written, the content is permanent. This suits production runs where the code is locked down and the same binary goes into every unit. For prototyping or field-updatable designs, a UV EPROM or Flash memory would be the alternative, but those parts are not pin-compatible with this OTP footprint.

Lifecycle and sourcing reality

Frequently asked questions

Is the 93Z667DMQB65 still available to buy?

The 93Z667DMQB65 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. Given the eol_hot lifecycle stage, it is advisable to secure your requirements promptly.

What is the access time of the 93Z667DMQB65?

The 93Z667DMQB65 has a 65 ns access time, which defines how quickly the memory outputs valid data after the address is presented. This is suitable for 5 V logic systems with moderate-speed microcontrollers.

What is the memory organization of the 93Z667DMQB65?

It is organized as 8K x 8 bits, meaning 8,192 words of 8 bits each, for a total of 64 Kbits of storage.