collection infosecdj, vendor hitachi, type memory dram, year 1985, foundry unknown

This is HM4864AP, a 64Kx1 fast page DRAM unit in CMOS apparently.

Package

W.GERMANY 8523
(Hitachi logo) HM4864AP-12
X1102TT

Die

Die size approx. 7.0x3.5mm

4864AX

Single (35081×17645, 202.404MiB)