INS8154 - National Semiconductor

INS8154 N-Channel 128-by-8 Bit RAM Input/Output

The RAM Input/Output Chip if'.' LSI device wh/ch provides random access memor' Peripheral interfacing for microcomputer syste he RAM portion contains 1024 bits of static R anized as 128x8, The 1/0 portion consists of t ripheral ports of eight bits each. Each of the 1/0 im ln the two ports may be defined as an input or': -output to provide maximum flexibility.

Features

0 0 0 0 0 0 ::r m . 128x8RAM Single +5-volt power s' plV Low power dissipatio .... CD 0 0 0 0 0 0 Fully static operation Completely TTL com Two 8-bit programma 1/0 port A has TRI-S ~ CD ibl~Î" ji c::r . '1/0 ports ;J'El!!> capability Handshake controls Single bit 1/0 operati Reduces system packs strobed mode of operation with single instruction cou nt '< ëo tU _0 - Direct interface with Independent operatio" " , JMP f RAM and 1/0 MICROBUS"TM
* comfible , , INS8154 MICROBUSTM Configuration ~ "g C 0' C 'tJ C -::a » s: ::a » i: ADDRESS BUS CPU' GRO~ DATA BUS CONTRDl.