Intel 8XC251SQ, 8xC251TB, 8XC251SA, 8XC251SP, 8xC251TQ, 8XC251SB specifications Date, Description

Page 3

 

 

8xC251Tx Hardware Description

REVISION HISTORY:

 

 

 

 

 

Date

Revision

Description

 

 

 

November 1997

001

Initial release of this document

 

 

 

December 2003

002

Removed references to 8XC251TA, 8XC251TP

 

 

 

273138-002

December 2003

iii

Image 3
Contents 8xC251TB, 8xC251TQ, Hardware Description Page Description DateDecember 273138-002 8xC251TB, 8xC251TQ Hardware Description 8xC251Tx Hardware Description OTPROM/EPROM XC251Tx Block DiagramProcessor Control Name XC251Tx Signal SummaryPower & Ground Name Address & Data NameXC251Tx Signal Descriptions Sheet 1 Signal Type Description Alternate Name FunctionAddress Line 16. See RD# Timer 10 External Clock Inputs. When Timer 10 operates as a XC251Tx Signal Descriptions Sheet 2GND XC251Tx Signal Descriptions Sheet 3Signal Description Alternate Name FunctionCH00000 CCAP0Hx CCAP1Hx CCAP2Hx CCAP3Hx CCAP4Hx Xxxxxxx Special Function Register SFR MapFunction Type Description Multiplexed Second Serial I/O Port SignalsMnemonic Description Address Second Serial I/O Port Special Function RegistersBit Number Function Mnemonic Bit Number Bit Mne Function Monic IPH1.0 IPL1.0 Priority Level Bit NumberExtended Data Float Timings UCONFIG1 bit definitions for the 8xC251TxInterrupt Mode Reserved for Internal or Future UseWSB#10 Wait State Extended Data Float Summary of the EDF# and WSB#10 Configuration Options
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8XC251SP, 8XC251SA, 8XC251SQ, 8xC251TB, 8xC251TQ specifications

The Intel 8XC251 series of embedded microcontrollers is a family of versatile and powerful devices, designed to meet the demands of a wide range of applications. With models such as the 8XC251SB, 8XC251SQ, 8XC251SA, and 8XC251SP, this series offers unique features while maintaining a high level of performance and reliability.

At the heart of the 8XC251 microcontrollers is the 8051 architecture, which provides a 16-bit processor capable of executing complex instructions efficiently. This architecture not only allows for a rich instruction set but also facilitates programming in assembly language and higher-level languages like C, which are essential for developing sophisticated embedded systems.

One of the significant features of the 8XC251 family is its integrated peripherals, including timer/counters, serial communication interfaces, and interrupt systems. These peripherals enable developers to implement timing functions, data communication, and real-time processing, all of which are crucial in modern embedded applications. The 8XC251SB and 8XC251SQ models, for instance, come equipped with multiple I/O ports that allow for interfacing with other devices and systems, enhancing their functionality in various environments.

The memory architecture of the 8XC251 devices is noteworthy, featuring on-chip ROM, RAM, and EEPROM. The on-chip memory allows for fast access times, which is essential for executing programs efficiently. Moreover, the EEPROM serves as non-volatile memory, enabling the storage of configuration settings and important data that must be retained even when power is lost.

In terms of operating voltage, the 8XC251 devices are designed to operate in a wide range, typically between 4.0V and 6.0V. This flexibility makes them suitable for battery-powered applications, where energy efficiency is critical. The power management features, including reduced power modes, further enhance their suitability for portable devices.

Lastly, the 8XC251 series is supported by a wide range of development tools and resources, allowing engineers and developers to streamline the development process. This support, combined with the microcontrollers' robust features, makes the Intel 8XC251 family a reliable choice for various embedded applications, such as industrial automation, automotive systems, and consumer electronics.

Overall, the Intel 8XC251SB, 8XC251SQ, 8XC251SA, and 8XC251SP deliver high performance, versatility, and ease of use, making them a preferred choice for embedded system designers looking to develop efficient and effective solutions.