Description:

• The N825181N is an 8K-bit TTL Bipolar PROM (Programmable Read-Only Memory) manufactured by Signal Technology (previously Signetics).
• Memory Capacity: 8K bits, arranged into 1024 words of 8 bits each.
• Custom logic patterns can be built utilizing the Signetics Generic I fusing method, as it is field programmable.
• Outputs: Three-state outputs allow for immediate memory expansion and bus connectivity.
• Chip Enable Inputs: There are four chip enable inputs, allowing memory expansion easier.
• On-Chip Address Decoding: Makes design simpler by eliminating the need for external address decoding hardware.
• Access time is typically 55ns, which ensures quick data retrieval.
• 40mW per bit of power dissipation is a very efficient amount of power for its period.
• Max input load is -150µA.
• In the unprogrammed state, all outputs are at a low logical level.
• Reliability: With an operating temperature range of -55 to +125°C, it is ideal for harsh and industrial situations.
• It was adaptable and sturdy for its time, making it suited for a wide range of embedded system projects requiring specialized memory solutions.