83C51KB
器件描述：HIGH PERFORMANCE KEYBOARD MICROCONTROLLER
器件厂商：INTEL [Intel Corporation]
文件大小：273.75KB，共19页
Sponsor by e络盟器件资料摘要：
Information in this document is provided in connection with Intel products. Intel assumes no liability whatsoever, including infringement of
any patent or copyright, for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products.
Intel retains the right to make changes to these specifications at any time, without notice. Microcontroller products may have minor varia-
tions to this specification known as errata.
COPYRIGHT © INTEL CORPORATION, 1996 March 1996 Order Number: 272800-001
83C51KB
HIGH PERFORMANCE
KEYBOARD MICROCONTROLLER
The 83C51KB is a highly integrated keyboard microcontroller for the standard and advanced desktop
keyboard industry. The integration of external components into the microcontroller reduces overall keyboard
control system manufacturing cost in terms of the number of components used, the amount of PCB space
required, reduced inventory, and a reduction in required assembly activities. In addition, the integration
reduces the number and amount of software routines needed for signal debounce and input status poll
operation. There is a resultant reduction in CPU overhead as well as on-chip memory requirements. The
83C51KB product line is manufactured with Intel state of the art complimentary high-performance metallic
oxide semiconductor (CHMOS) design rules.
a73 Direct Drive LED Outputs
— Four Pins (P3.7:4)
— 13 mA Typical Current Sink
Capability
a73 20 pF Cap On-chip for RC Resonator
— Frequency Selectable (4-6 MHz)
a73 8 Dedicated Key Scan Input (KSI) Pins
— Schmitt-trigger Inputs
— External Interrupt
— Level Detect Interrupt Mode for
Automatic Power-down Exit
a73 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
a73 4-Kbyte On-chip ROM Memory
a73 128-byte On-chip RAM Memory
a73 Clock/Data Drivers to Motherboard
— Strong Pullup Drivers for Keyboard
Cable Communication
— 8X42 Compatible Interface
— Selectable external interrupt for
Clock
a73 ONCE mode (On-chip Emulation)
a73 Power-on Reset Mode
— Automatic Operation
a73 5 Volt D.C. Operation
a73 Reduces Manufacturing Cost by
Reducing Overall Component Count
a73 Configurable Timer (16 bit or 2 by 8 Bit)
a73 Uses Industry Standard Design Tools
a73 Control Oriented Instruction Set
a73 Industry Standard Architecture
any patent or copyright, for sale and use of Intel products except as provided in Intel’s Terms and Conditions of Sale for such products.
Intel retains the right to make changes to these specifications at any time, without notice. Microcontroller products may have minor varia-
tions to this specification known as errata.
COPYRIGHT © INTEL CORPORATION, 1996 March 1996 Order Number: 272800-001
83C51KB
HIGH PERFORMANCE
KEYBOARD MICROCONTROLLER
The 83C51KB is a highly integrated keyboard microcontroller for the standard and advanced desktop
keyboard industry. The integration of external components into the microcontroller reduces overall keyboard
control system manufacturing cost in terms of the number of components used, the amount of PCB space
required, reduced inventory, and a reduction in required assembly activities. In addition, the integration
reduces the number and amount of software routines needed for signal debounce and input status poll
operation. There is a resultant reduction in CPU overhead as well as on-chip memory requirements. The
83C51KB product line is manufactured with Intel state of the art complimentary high-performance metallic
oxide semiconductor (CHMOS) design rules.
a73 Direct Drive LED Outputs
— Four Pins (P3.7:4)
— 13 mA Typical Current Sink
Capability
a73 20 pF Cap On-chip for RC Resonator
— Frequency Selectable (4-6 MHz)
a73 8 Dedicated Key Scan Input (KSI) Pins
— Schmitt-trigger Inputs
— External Interrupt
— Level Detect Interrupt Mode for
Automatic Power-down Exit
a73 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
a73 4-Kbyte On-chip ROM Memory
a73 128-byte On-chip RAM Memory
a73 Clock/Data Drivers to Motherboard
— Strong Pullup Drivers for Keyboard
Cable Communication
— 8X42 Compatible Interface
— Selectable external interrupt for
Clock
a73 ONCE mode (On-chip Emulation)
a73 Power-on Reset Mode
— Automatic Operation
a73 5 Volt D.C. Operation
a73 Reduces Manufacturing Cost by
Reducing Overall Component Count
a73 Configurable Timer (16 bit or 2 by 8 Bit)
a73 Uses Industry Standard Design Tools
a73 Control Oriented Instruction Set
a73 Industry Standard Architecture