GENERAL DESCRIPTION
As a result, it executes every 8051 instruction faster than the original 8051 for the same crystal speed. Typically, the instruction executing time of W79E(L)549 is 1.5 to 3 times faster than that of traditional 8051, depending on the type of instruction. In general, the overall performance is about 2.5 times better than the original for the same crystal speed. Giving the same throughput with lower clock speed, power consumption has been improved. Consequently, the W79E(L)549 is a fully static CMOS design; it can also be operated at a lower crystal clock. The W79E(L)549 contains In-System Programmable (ISP) 32 KB bank-addressed Flash EPROM; 4KB auxiliary Flash EPROM for loader program; on-chip 1 KB MOVX SRAM; power saving modes. 2. FEATURES
y 8-bit CMOS microcontroller y High speed architecture of 4 clocks/machine cycle y Pin compatible with standard 80C52 y Instruction-set compatible with MCS-51 y Seven 8-bit I/O Ports; Port 0 has internal pull-up resisters enabled...
Winbond Electronics Corporation
