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AMD (Xilinx) AM27PS41/BRA — Memory (DRAM / SRAM / Flash / EEPROM)
AMD (Xilinx)

AMD AM27PS41/BRA 16Kbit PROM, 65 ns, 4K x 4, PDIP-20

MPNAM27PS41/BRA
End of Life

AMD AM27PS41/BRA, 16Kbit parallel PROM, 65 ns access time, 4K x 4 organization, 4.5 V supply, 20-pin PDIP, -55°C to 125°C.

$150.66Ref. price · indicative, final on quote
AM27PS41/BRA datasheet
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Specifications

AM27PS41/BRA Technical Specifications
ParameterValue
Interface_typeParallel
Mounting_typeThrough Hole
Operating temperature high-55°C to 125°C(TC)
Frame_size16Kbit
Access time65 ns
Memory_typeNon-Volatile
Package_typeBulk
Memory formatPROM
Supply_voltage_v4.5
Memory organization4K x 4

Product details

What this PROM is and where it fits

The AMD AM27PS41/BRA is a 16Kbit bipolar PROM organized 4K words by 4 bits, with a 65 ns access time and a single 4.5 V supply rail. It comes in a 20-pin PDIP for through-hole mounting and is rated over the full military temperature range of -55°C to 125°C. This part was designed for microcode storage, lookup tables, and logic replacement in avionics, missile guidance, satellite, and downhole equipment where the PROM is programmed once at the factory and never field-updated.

65 ns access time — what it means for the bus

The 65 ns access time sets the address-to-data valid window. It is slower than the 28 ns AM27S45SA/BLA sibling.

Military temperature grade and supply rail

Rated -55°C to 125°C case temperature. The 4.5 V supply is a single rail.

Frequently asked questions

Can AM27PS41/BRA replace AM27S45SA/BLA in an existing board?

Not without rewiring. The AM27PS41/BRA is organized 4K x 4 (4-bit word), while the AM27S45SA/BLA is 2K x 8 (8-bit word). The access time is also slower (65 ns vs 28 ns). The pinout and data bus width differ; verify the board schematic before substituting.

What is the temperature range for AM27PS41/BRA?

Rated for -55°C to 125°C case temperature — the military-grade range suitable for avionics, missile guidance, satellite, and downhole applications.