81C51SL

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 ROM Preprogrammed with SystemSoft Keyboard Controller and Scanner Firmware VCC e 3 3V g0 3V Low Voltage 83C51SL 16K Factory Programmed ROM VCC e 3 3V g0 3V Low Voltage 87C51SL 16K OTP ROM VCC e 3 3V g0 3V Y Proliferation of 8051 Architecture Y Complete 8042 Keyboard Control Functionality Y 8042 Style Host Interface Y Optional Hardware Speedup of GATEA20 and RCL Y Local 16 x 8 Keyboard Switch Matrix Support Y Two Industry Standard Serial Keyboard Interfaces Supported via Four High Drive Outputs Y 5 LED Drivers Y Low Power CHMOS Technology Y 4-Channel 8-Bit A D Y Interface for up to 32 Kbytes of External Memory Y Slew Rate Controlled I O Buffers Used to Minimize Noise Y 256 Bytes Data RAM Y Three Multifunction I O Ports Y 10 Interrupt Sources with 6 UserDefinable External Interrupts Y 2 MHz – 16 MHz Clock Frequency Y 100-Pin PQFP (8XC51SL) 100-Pin SQFP (Low Voltage 8XC51SL) The 8XC51SL based on Intel’s industry-standard MCS 51 microcontroller family is designed for keyboard control in laptop and notebook PCs The highly integrated keyboard controller incorporates an 8042-style UPI host interface with expanded memory keyboard...