X88C75J

The X88C75J SLIC is a highly integrated peripheral for the 88C75 family of microcontrollers. The X88C75J device integrates 8K-bytes of 5V byte-alterable nonvolatile memory,two bidirectional 8-bit ports, 16 general purpose registers,programmable internal address decoding and a multiplexed address and data bus.The 5V byte-alterable nonvolatile memory can be used as program storage, data storage, or a combination of both. The memory array is separated into two 4K-bytes sections which allows read accesses to one section while a write operation is taking place in the other section. The nonvolatile memory also features Software Data Protection to protect the contents during power transitions, and an advanced Block Protect register which allows Individual blocks of the memory to be configured as read-only or read/write.

Features of the X88C75J can be summarized as:(1)highly integrated microcontroller peripheral:-8K x 8 E2 memory,-2 x 8 general purpose bidirectional I/O ports,-16 x 8 general purpose registers,-integerated interrupt controller module;(2)PDIP, PLCC, and TQFP packaging available;(3)isolates read/Write functions between planes;(4)allows continuous execution of code from one plane while writing in the other plane;(5)toggle bit polling.

The X88C75J incorporates the interface circuitry normally needed to decode the control signals and demultiplex the address/data bus to provide a "seamless"
interface.