4Kb SRAM, 1Kx4, 5V, 3-State Output, DIP18 Package, Commercial Temperature
UPD2114LC
22-Pin Dual DSP Peripheral IC, 3-18V, Industrial Temperature, SDIP-22
UPD22148CA-A
5V 4.5V to 18V Industrial CMOS IC, SDIP-24, -40°C to 85°C
uPD22148CA(A)