Single chip microcontroller

single chip microcomputer

The manufacturer of STC90C52AD considers that the usage is too small, so the production has been discontinued. The manufacturer recommends STC90C54AD to us, which is fully compatible, but the capacity is larger.

single chip microcomputer

5.5V-2.4V, program space 1K, SRAM 128, EEPROM 4K, IO 6, timer 2