Description
The MS51 is an embedded flash type, 8-bit high performance 1T 8051-based microcontroller. The instruction set is fully compatible with the standard 80C51 and performance enhanced. The MS51XB9AE contains an 16K Bytes of main Flash called APROM, in which the contents of User Code resides. The MS51 Flash supports In-Application-Programming (IAP) function, which enables on-chip firmware updates.
Core
- 1T 8051-based CMOS microcontroller running up to 24 MHz.
Memories
- 16 K bytes Flash
- Configurable 4 K / 3 K / 2 K / 1 K Bytes of LDROM, which provides flexibility to user developed Boot Code
- 1 K bytes SRAM
- 256 Bytes on-chip RAM
- Flash Memory accumulated with pages of 128 Bytes each
- Built-in In-Application-Programmable ( IAP )
Clocks
- External clock input ( 32 K body only )
- 16 MHz high-speed internal oscillator trimmed to ± 1 % when VDD 5.0 V, ± 2 % in all conditions.
- 24 MHz high-speed internal oscillator trimmed to ± 1 % when VDD 5.0 V, ± 2 % in all conditions
- 10 kHz low-speed internal oscillator
- On-the-fly clock source switch via software
Power management
- Brown-out detection ( BOD ) with low power mode available, 4-level selection, interrupt or reset options
- Power-on reset ( POR )
