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: 72/97页
文件大小: 1229K
代理商: AT87C5112
72
AT8xC5112
4191B
8051
04/03
Configuration Byte
The configuration byte is a special register. Its content is defined by the diffusion mask
in the ROM version or is read or written by the OTP programmer in the OTP version.
This register can also be accessed as a read only register.
Table 58.
CONF - Configuration Byte (EFh)
Reset value = 1111 111X
Signature Bytes
The T87C5112 contains 4 factory programmed signatures bytes. To read these bytes,
perform the process described in Section .
EPROM Programming
Set-up Modes
In order to program and verify the EPROM or to read the signature bytes, the T87C5112
is placed in specific set-up modes (See Figure 30.).
Control and program signals must be held at the levels indicated in
Definition of Terms
Address Lines:
P1.0-P1.7, P2.0-P2.5, P3.4, P3.5 respectively for A0-A15 (P2.5 (A13)
for RB, P3.4 (A14) for RC, P3.5 (A15) for RD)
Data Lines:
P0.0-P0.7 for D0-D7
Control Signals:
RST, PSEN, P2.6, P2.7, P3.3, P3.6, P3.7.
Program Signals:
ALE/PROG, RST/VPP.
7
6
5
4
3
2
1
0
LB1
LB2
LB3
1
1
1
1
1
Bit Number
Bit Mnemonic Description
7:5
-
Program memory lock bits
See previous chapter for the definition of these bits.
4
-
Reserved
Leave this bit at 1.
3
-
Reserved
Leave this bit at 1.
2
-
Reserved
Leave this bit at 1.
1
-
Reserved
Leave this bit at 1.
0
-
Reserved
Leave this bit at 1.
相关PDF资料
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AT80C51RB2-3CSCM 80C51 High Performance ROM 8-bit Microcontroller
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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