8XC51SL LOW VOLTAGE 8XC51SL KEYBOARD CONTROLLER
80C51SL CPU with RAM and I O VCC e 5V g10% 81C51SL 16K ROM Preprogrammed with SystemSoft Keyboard Controller and Scanner
Firmware VCC e 5V g10% 83C51SL 16K Factory Programmed ROM VCC e 5V g10% 87C51SL 16K OTP ROM VCC e 5V g10% Low Voltage 80C51SL CPU with RAM and I O VCC e 3 3V g0 3V Low Voltage 81C51SL 16K RO...