mg84fl54 Megawin Technology, mg84fl54 Datasheet - Page 6

• Manufacturer Part Number: mg84fl54
• Description: Full-speed Usb Micro-controller
• Manufacturer: Megawin Technology

1. General Description
MG84FL54B is an enhanced single-chip 8-bit microcontroller manufactured in an advanced Embedded-Flash
process. The instruction set is fully compatible with that of the 8051. With the enhanced CPU core, the device
needs only 1 to 6 clock cycles to complete an instruction, and thus provides much higher performance than the
standard 8051, which needs 12 to 48 clock cycles to complete an instruction. So, at the same performance as
the standard 8051, the device can operate at a much lower speed and thereby greatly reduce the power
consumption.
The device has on-chip 16KB Flash memory that is parallel programmable (via a universal programmer), In-
System Programmable (via USB DFU). ISP allows the device to alter its own program memory without being
removed from the actual end product under firmware control. This opens up a range of applications that need
the ability to field update the application firmware. The other important and useful feature, In-Application-
Programming (IAP), provides the device with the ability to save non-volatile data in its Flash memory.
And in addition to the 256 bytes of internal scratch-pad RAM, the device has 576 bytes of on-chip expanded
RAM (XRAM) for the applications that require extra memory. The device has also four 8-bit I/O ports and one 4-
bit I/O ports, three 16-bit timers/counters, a multi-source/two-priority-level/nested interrupt structure, an
enhanced UART input. More important, the added features such as KBI, SPI, TWSI bus and USB1.1 make it a
powerful microcontroller and suitable for wide field applications.
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MG84FL54B Data Sheet
MEGAWIN