TP8051AH Datasheet | Intel Corporation

Feature Protects EPROM Parts s Boolean Processor s Bit-Addressable RAM s Programmable Full Duplex Serial Channel s 111 Instructions (64 Single-Cycle) s s Extended Temperature Range 64K External Data Memory Space (- 40”C to +85”C) Against Software Piracy Data Shee The MCS@51 controllers are optimized for control applications. Byte-processing and numerical operations on small data structures are facilitated by a variety of fast addressing modes for accessing the internal RAM. The instruction set provides a convenient menu of 8-bit arithmetic instructions, including multiply and divide instructions. Extensive on-chip support is provided for one-bit variables as a separate data type, allowing direct bit manipulation and testing in control and logic systems that require Boolean processing. The 8751H is an EPROM version of the 8051AH. It has 4 Kbytes of electrically programmable ROM which can . be erased with ultraviolet light. His fully patible with the 8051AH but incorporates one additional feature : a Program Memory Security bit that can be used to protect the EPROM against unauthorized readout. The 8751 H-8 is identical to the 8751 H but only operates up to 8 MHz. The 8051AHP is identical to the 8051AH with the exception of the Protection Feature . To incorporate this Protection Feature , program verification has been disabled and external memory accesses have been limited to 4K. The 8052AH is an enhanced version of the 8051AH. It is backwards patible with the 8051AH and is fabricated with HMOS II technology. The 8052AH enhancements are listed in the table below. Also refer to this table for the ROM, ROMless and-EPROM versions of each product. Device 8031AH 8051AH 6051AHP 8751 H 8751 H-8 6751 BH 8032AH 6052AH 8752BH Intsrnal Memory Program none 4K X 8 ROM 4K X 6 ROM 4K X 8 EPROM 4K X 8 EPROM 4K X 8 EPROM none 8K X 8 ROM 8K X 8 EPROM Data 128 X 8 RAM 128 X 8 RAM 128 X 8 RAM 128 X 8 RAM 128 X 6 RAM 128 X 8 RAM 256 X 6 RAM 256 X 8 RAM 256 X 8 RAM Timera/ Event Counters...