80C51-based design at six times the speed

NXP Semiconductors has added another MCU to its range of 8051-compatible devices, offering enhanced performance and an easy upgrade path for existing designs.

The P89LPC954 is an 80C51-based MCU that achieves six times the speed of the standard core. It also provides advanced memory capabilities and multiple power-saving modes.

The accelerated two-clock CPU achieves instruction cycle times from 111ns to 222ns, except for the Multiply and Divide instructions, when clocked at 18MHz. This means that designers can improve execution speed for a given clock frequency or reduce the clock to save power without slowing the application.

Further enhancements include 16kbytes of on-chip Flash code memory, supporting serial In-System Programming (ISP) and In- Application Programming (IAP).

Two different reduced-power modes plus an idle mode enhance power efficiency. In total, typical supply current in power-down mode is reduced to 1µA.

 

FEATURES 256bytes RAM data memory 8-input multiplexed 10-bit ADC Two 16-bit counter/timers >40 I/O pins available 20mA source/sink capability

APPLICATIONS Data loggers Position-control systems Industrial controls Data-communication equipment

 

NXP Semiconductors/LPC952/954