2048-BIT STATIC HMOS RAM WITH I/O PORTS AND TIMER

The Intel 8155H and 8156H are RAM and I/O chips implemented in N-Channel, depletion load, silicon gate technology (HMOS), to b used in the 8085AH and 8088 microprocessor system. The RAM portion is designed with 2048 static cells organized as 256 x 8. They have a maximum access time of 400 ns to permit use with no wait states in 8285AH CPU. The 8155H-2 and 8156H-2 have maximum access times of 330 ns for use with the 8155H-2 and the 5 MHz 8088 CPU.