The DQ8051 is an ultra high performance, speed optimized soft core of a single-chip 8-bit embedded controller, designed to operate with fast (typically on-chip) and slow (off-chip) memories. The core has been designed with a special concern about performance to power consumption ratio. This ratio is extended by an advanced power management PMU unit. The DQ8051 soft core is 100% binary-compatible with the industry standard 8051 8-bit microcontroller. The DQ8051 has a built-in configurable DoCD-JTAG on chip debugger, supporting Keil µVision development platform and standalone DoCD debug software. Dhrystone 2.1 benchmark program runs from 26.67 to 29.01 times faster than the original 80C51 at the same frequency. This performance can also be exploited to great advantage in low power applications, where the core can be clocked over ten times more slowly than the original implementation, with no performance penalty. The DQ8051 is fully customizable - it is delivered in the exact configuration to meet your requirements. There is no need to pay extra, for not used features and wasted silicon.