TAILIEUCHUNG - MCS@51 MICROCONTROLLER FAMILY USER’S MANUAL

Functionally, the CHMOS devices (designated with “C” in the middle of the device name) me all fiuy compatible with the 8051, but being CMOS, draw less current than an HMOS counterpart. To further exploit the power savings available in CMOS circuitry, two re- duced power modes are added l Software-invoked Idle Mode, during which the CPU is turned off while the RAM and other on-chip peripherals continue operating. In this mode, cur- rent draw is reduced to about 15% of the current drawn when the device is fully active. l Software-invoked Power Down Mode, during which all on-chip activities are suspended. The on-chip RAM continues to hold its data. In this mode the device. | intel MCS 51 MICROCONTROLLER FAMILY USER S MANUAL ORDER NO. 272383-002 FEBRUARY 1994 Intel Corporation makes no warranty for the use of Its products and assumes no responsibility for any errors which may appear In this document nor does It make a commitment to update the Information contained herein. Intel retains the right to make changes to these specifications at any time without notice. Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order. MDS Is an ordering code only and Is not used as a product name or trademark of Intel Corporation. Intel Corporation and Intel s FASTPATH are not affiliated with Kinetics a division of Excelan Inc. or its FASTPATH trademark or products. Other brands and names are the property of their respective owners. Additional copies of this document or other Intel literature may be obtained from Intel Corporation Literature Sales . Box 7641 Mt Prospect IL 60056-7641 or call 1-800-879-4683 C-INTEL CORPORATION 19B3 MCS 51 CONTENTS PAGE MICROCONTROLLER CHAPTER 1 FAMILY USER S MANUAL MCS 51 Family of Microcontrollers Architectural Overview CHAPTER 2 1-1 MCS 51 Programmer s Guide and Instruction Set 2-1 CHAPTER 3 8051 8052 and 80C51 Hardware Description 3-1 CHAPTER 4 8XC52 54 58 Hardware Description. 4-1 CHAPTER 5 8XC51FX Hardware Description CHAPTER 6 5-1 87C51GB Hardware Description 6-1 CHAPTER 7 83C152 Hardware Description 7-1 .

• Điện - Điện tử
• Data Transers
• Data Memory
• CPU TIMING
• CHMOS Devices
• Logical Separation
• Machine Cycles
• nterrupt Structure