P87C51RA2/RB2/RC2/RD2 ������ ����� ���� � P87C51RA2
80C51 8-bit microcontroller family 8KB/16KB/32KB/64KB OTP, 512B/512B/512B/1KB RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz)
P87C51RA2/RB2/RC2/RD2 ������ ����� ���� � P87C51RA2