Skip to main content
AMD (Xilinx) AM27S191SA/BKA — Memory (DRAM / SRAM / Flash / EEPROM)
AMD (Xilinx)

AMD AM27S191SA/BKA 16Kbit PROM, 30 ns, -55°C to 125°C

MPNAM27S191SA/BKA
End of Life

AMD AM27S191SA/BKA, 16Kbit (2K x 8) Parallel PROM, 30 ns access time, 4.5 V supply, -55°C to 125°C, 24-lead ceramic flatpack (CFLATPK).

$100.78Ref. price · indicative, final on quote
AM27S191SA/BKA datasheet
StockContact for availability
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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

AM27S191SA/BKA Technical Specifications
ParameterValue
Interface_typeParallel
Mounting_typeSurface Mount
Operating temperature high-55°C to 125°C(TC)
Frame_size16Kbit
Access time30 ns
Memory_typeNon-Volatile
Package_typeBulk
Memory formatPROM
Supply_voltage_v4.5
Memory organization2K x 8

Product details

What this PROM is and where it fits

The AMD AM27S191SA/BKA is a 16Kbit (2K x 8) parallel PROM in a 24-lead ceramic flatpack (CFLATPK). It runs on a 4.5 V supply and delivers a 30 ns access time. The memory is organized as 2K words of 8 bits each, accessed through a parallel interface. This is a one-time-programmable (OTP) device — the data pattern is fused at the factory or in a programming step, with no field erasure or rewrite capability. The full military temperature range (-55°C to 125°C) and hermetic ceramic package make it suited for avionics, missile guidance, satellite, and downhole instrumentation where commercial plastic parts cannot survive the thermal and environmental stress.

30 ns access time — what it buys you on the bus

The 30 ns access time halves the access penalty compared to the AM27S191/BUA (65 ns).

Frequently asked questions

What is the closest functional second-source for the AM27S191SA/BKA?

The AM27S191/BUA is a pin-compatible 16Kbit parallel PROM with the same 2K x 8 organization and 4.5 V supply, but its access time is 65 ns — slower than the 30 ns of the AM27S191SA/BKA. It will drop into the same socket without rewiring, but the bus timing must accommodate the slower access.