AT87C5112 PDF资料下载(13/97 页)8-bit Microcontroller with A/D Converter

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参数资料

型号：	AT87C5112
厂商：	Atmel Corp.
英文描述：	8-bit Microcontroller with A/D Converter
中文描述：	8位微控制器与A / D转换器
文件页数：	13/97页
文件大小：	1229K
代理商：	AT87C5112

AT8xC5112

4191B

–

8051

–

04/03

Clock Prescaler Register

This register is used to reload the clock prescaler of the CPU and peripheral clock.

Table 6.

CKRL - Clock prescaler Register (97h)

Reset value = 1111 1111b

Not bit addressable

Clock Control Register

This register is used to control the X2 mode of the CPU and peripheral clock.

Table 7.

CKCON0 Register (8Fh)

Bit

Number

Bit

Mnemonic

Description

7: 0

CKRL

0000 0000b: Division factor equal 512

1111 1111b: Division factor equal 2

M: Division factor equal 2*(256-M)

WDX2

PCAX2

SIX2

T1X2

T0X2

Bit

Number

Bit

Mnemonic Description

Reserved

WdX2

Watchdog clock

(This control bit is validated when the CPU clock X2 is set; when

X2 is low, this bit has no effect)

Clear to select 6 clock periods per peripheral clock cycle.

Set to select 12 clock periods per peripheral clock cycle.

PcaX2

Programmable Counter Array clock

(This control bit is validated when the CPU

clock X2 is set; when X2 is low, this bit has no effect)

Clear to select 6 clock periods per peripheral clock cycle.

Set to select 12 clock periods per peripheral clock cycle.

SiX2

Enhanced UART clock (Mode 0 and 2)

(This control bit is validated when the

CPU clock X2 is set; when X2 is low, this bit has no effect)

Clear to select 6 clock periods per peripheral clock cycle.

Set to select 12 clock periods per peripheral clock cycle.

Reserved

T1X2

Timer1 clock

(This control bit is validated when the CPU clock X2 is set; when X2

is low, this bit has no effect)

Clear to select 6 clock periods per peripheral clock cycle.

Set to select 12 clock periods per peripheral clock cycle

T0X2

Timer0 clock

(This control bit is validated when the CPU clock X2 is set; when X2

is low, this bit has no effect)

Clear to select 6 clock periods per peripheral clock cycle.

Set to select 12 clock periods per peripheral clock cycle

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相关代理商/技术参数	参数描述
AT87C51RB2	制造商:IRF 制造商全称:International Rectifier 功能描述:High Performance 8-bit Microcontroller
AT87C51RB2-3CSUL	功能描述:8位微控制器 -MCU OTP RB/16K 40MHZ 3V RoHS:否制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
AT87C51RB2-3CSUM	功能描述:8位微控制器 -MCU 32KB SCMOS 3/2 .5 OTP RoHS:否制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
AT87C51RB2-RLRUM	功能描述:8位微控制器 -MCU 32KB 2.5u RoHS:否制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
AT87C51RB2-RLTUL	功能描述:8位微控制器 -MCU OTP RB/16K 40MHZ 3V RoHS:否制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT

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