Datasheet Summary
83C51KB HIGH PERFORMANCE KEYBOARD MICROCONTROLLER s Direct Drive LED Outputs
- Four Pins (P3.7:4)
- 13 mA Typical Current Sink Capability s 20 pF Cap On-chip for RC Resonator
- Frequency Selectable (4-6 MHz) s 8 Dedicated Key Scan Input (KSI) Pins
- Schmitt-trigger Inputs
- External Interrupt
- Level Detect Interrupt Mode for Automatic Power-down Exit s 16 Dedicated Key Scan Output (KSO) Pins with Quasi-bidirectional Port Drivers
- No External Resistor Required
- Located on P0.7:0 and P2.7:0 s 4-Kbyte On-chip ROM Memory s 128-byte On-chip RAM Memory s Clock/Data Drivers to Motherboard
- Strong Pullup Drivers for Keyboard Cable munication
- 8X42 patible Interface
- Selectable external...
