Mixed IC Lot – CPUs, DRAM, SRAM, DMA, BIOS ROMs, Logic & More – Untested, As‑Is

This listing is for a large mixed lot of vintage integrated circuits, ideal for collectors, restorers, retro‑computer builders, and electronics hobbyists. These chips come from long‑stored surplus and are untested, sold as‑is, and may include pulls, NOS, or partially used stock.All quantities and part numbers are listed below.

ConditionUntested surplus Some may be pulls; some may be unusedSold as‑is, no guarantees

Pins may be bent, show oxidation or storage wear

🟦 Microprocessors

Qty 1 – 580A Series Microprocessor

Soviet‑era clone/equivalent of the Intel 8080A 8‑bit CPU. Highly collectible.

🟩 Dynamic RAM (DRAM)

Qty 8 – Toshiba TC514256AP‑80

256K × 4‑bit DRAM, 80ns

Qty 8 – GoldStar GM71C464‑80

64K × 4‑bit CMOS DRAM, 80ns, 18‑pin DIP

Qty 12 – Samsung KM41256‑15

256K × 1‑bit NMOS DRAM, 150ns, 16‑pin DIP

🟧 Static RAM (SRAM)

Qty 7 – Hitachi HM6167HP‑55

16K × 1‑bit high‑speed CMOS SRAM, 55ns

🟥 DMA / Timer / Interrupt Controllers

Qty 2 – UMC UM8237AE‑5

5MHz, 4‑channel DMA controller (8237‑compatible)

Qty 1 – KS82C54‑10CP

Programmable interval timer (Intel 8254‑compatible)

Qty 2 – Winbond W82C59

Programmable interrupt controllers (8259‑compatible)

🟪 BIOS & Firmware ROMs

Qty 2 – AMI 286 BIOS (LOW)

Lower half of matched 80286 BIOS pair

Qty 2 – AMI VGA BIOS (HIGH)

High‑byte VGA BIOS ROMs (1987, Video Technology / Info‑Tech Ltd.)

Qty 1 – AMI 286 BIOS PLUS (KEYBOARD)

Keyboard controller ROM for 286‑class PCs

🟫 Logic & Support ICs

Qty 1 – Motorola MC146818AP

CMOS real‑time clock + RAM (used in many early PCs)

Qty 1 – 74LS158

Quad 2‑input multiplexer (DIP‑16)

Qty 3 – TI TIBPAL16L8‑15CN

Programmable logic devices (SPLD), DIP‑20

📦 What You Will ReceiveEverything listed above, exactly as described. Great for repair benches, retro‑computer projects, or collectors of vintage silicon.If you want, I can also generate:A shorter, more sales‑optimized versionA search‑optimized titleA pricing estimateA condition disclaimer sectionJust tell me what direction you want next.