参数资料
型号: AT89LP828-20JU
厂商: Atmel
文件页数: 26/149页
文件大小: 0K
描述: MCU 8051 8K FLASH SPI 32PLCC
产品培训模块: MCU Product Line Introduction
标准包装: 32
系列: 89LP
核心处理器: 8051
芯体尺寸: 8-位
速度: 20MHz
连通性: SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 30
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
EEPROM 大小: 1K x 8
RAM 容量: 768 x 8
电压 - 电源 (Vcc/Vdd): 2.4 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 32-LCC(J 形引线)
包装: 管件
121
3654A–MICRO–8/09
AT89LP428/828
23.7
User Configuration Fuses
The AT89LP428/828 includes 11 user fuses for configuration of the device. Each fuse is
accessed at a separate address in the User Fuse Row as listed in Table 23-6. Fuses are cleared
by programming 00H to their locations. Programming FFH to a fuse location will cause that fuse
to maintain its previous state. To set a fuse (set to FFH), the fuse row must be erased and
then reprogrammed using the Fuse Write with Auto-erase command. The default state for all
fuses is FFH.
Notes:
1. The default state for all fuses is FFH.
2. Changes to these fuses will only take effect after a device POR.
3. Changes to these fuses will only take effect after the ISP session terminates by bringing RST high.
Table 23-6.
User Configuration Fuse Definitions
Address
Fuse Name
Description
00 - 01H
Clock Source – CS [0:1](2)
Selects source for the system clock:
CS1CS0
Selected Source
00H
High Speed Crystal Oscillator (XTAL)
00H
FFH
Low Speed Crystal Oscillator (XTAL)
FFH
00H
External Clock on XTAL1 (XCLK)
FFH
Internal RC Oscillator (IRC)
02 - 03H
Start-up Time – SUT [0:1]
Selects time-out delay for the POR/BOD/PWD wake-up period:
SUT1
SUT0
Selected Time-out
00H
1 ms (XTAL); 16 s (XCLK/IRC)
00H
FFH
2 ms (XTAL); 512 s (XCLK/IRC)
FFH
00H
4 ms (XTAL); 1 ms (XCLK/IRC)
FFH
16 ms (XTAL); 4 ms (XCLK/IRC)
04H
Reset Pin Enable(3)
FFH: RST pin functions as reset
00H: RST pin functions as general-purpose I/O
05H
Brown-out Detector Enable
FFH: Brown-out Detector Enabled
00H: Brown-out Detector Disabled
06H
On-chip Debug Enable
FFH: On-chip Debug Disabled
00H: On-chip Debug Enabled
07H
ISP Enable(3)
FFH: In-System Programming Enabled
00H: In-System Programming Disabled (Enabled at POR only)
08H
User Signature Programming
FFH: Programming of User Signature Disabled
00H: Programming of User Signature Enabled
09H
Tristate Ports
FFH: I/O Ports start in input-only mode (tristated) after reset
00H: I/O Ports start in quasi-bidirectional mode after reset
0AH
OCD Interface Select
FFH: Fast Two-wire Interface
00H: Do not use
0BH
In-Application Programming
FFH: In-Application Programming Disabled
00H: In-Application Programming Enabled
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AT89LP828-20MH 功能描述:8位微控制器 -MCU Single Cycle 8051 8K ISP Flash 2.4V-5.5V 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
AT89LP828-20PU 功能描述:8位微控制器 -MCU Single Cycle 8051 8K ISP Flash 2.4V-5.5V 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
AT89LP828-AU 功能描述:8位微控制器 -MCU Single-Cycle 8051 8K ISP Flash, 2.4-5.5V 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
AT89LP828-JU 功能描述:8位微控制器 -MCU Single-Cycle 8051 8K ISP Flash, 2.4-5.5V 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
AT89LP828-PU 功能描述:8位微控制器 -MCU Single-Cycle 8051 8K ISP Flash, 2.4-5.5V 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