参数资料
型号: AT89LP51-20PU
厂商: Atmel
文件页数: 31/117页
文件大小: 0K
描述: MCU 8051 4K FLASH 20MHZ
标准包装: 10
系列: 89LP
核心处理器: 8051
芯体尺寸: 8-位
速度: 20MHz
连通性: EBI/EMI,I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 36
程序存储器容量: 4KB(4K x 8)
程序存储器类型: 闪存
RAM 容量: 256 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: 40-DIP(0.600",15.24mm)
包装: 管件
20
3709D–MICRO–12/11
AT89LP51/52
Notes:
1. AUXR.4 and AUXR.3 function as WDIDLE and DISRTO only in Compatibility mode. In Fast mode these bits are located in
WDTCON.
2. WS1 is only available in Fast mode. WS1 is forced to 0 in Compatibility mode.
Figure 3-12. Fast Mode External Data Memory Write Cycle (WS =00B)
Table 3-3.
AUXR
– Auxiliary Control Register
AUXR = 8EH
Reset Value = xxx0 0000B
Not Bit Addressable
––
WDIDLE(1)
DISRTO(1)
WS1(2)
WS0
EXRAM
DISALE
Bit
7
6
543
21
0
Symbol
Function
WDIDLE
WDT Disable during Idle(1). When WDIDLE = 0 the WDT continues to count in Idle mode. When WDIDLE = 1 the WDT
halts counting in Idle mode.
DISRTO
Disable Reset Output(1). When DISTRO = 0 the reset pin is driven to the same level as POL when the WDT resets.
When DISRTO = 1 the reset pin is input only.
WS[1-0]
Wait State Select. Determines the number of wait states inserted into external memory accesses.
WS1
WS0
Wait States
RD / WR Strobe Width
ALE to RD / WR Setup
000
1 x t
CYC (Fast);
3 x t
CYC (Compatibility)
1 x t
CYC (Fast); 1.5 x tCYC (Compatibility)
011
2 x t
CYC (Fast); 15 x tCYC (Compatibility)
1 x t
CYC (Fast); 1.5 x tCYC (Compatibility)
102
2 x t
CYC (Fast)
2 x t
CYC (Fast)
113
3 x t
CYC (Fast)
2 x t
CYC (Fast)
EXRAM
External RAM Enable. When EXRAM = 0, MOVX instructions can access the internally mapped portions of the address
space. Accesses to addresses above internally mapped memory will access external memory. Set EXRAM = 1 to
bypass the internal memory and map the entire address space to external memory.
DISALE
ALE Disable. When DISALE = 0 the ALE pulse is active at 1/3 of the system clock frequency in Compatibility mode and
1/2 of the system clock frequency in Fast mode. When DISALES = 1 the ALE is inactive (high) unless an external
memory access occurs. DISALE must be set to use P4.4 as a general I/O.
S1
S2
S3
S4
CLK
ALE
WR
DPL or Ri OUT
P0 SFR
P0
P2 SFR
DPH or P2 OUT
P2
DATA OUT
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AT89LP51ED2-20AAU 功能描述:8位微控制器 -MCU 64KB 20MHz 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
AT89LP51ED2-20AU 功能描述:8位微控制器 -MCU 64KB 20MHz 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
AT89LP51ED2-20JU 功能描述:8位微控制器 -MCU 64KB 20MHz 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
AT89LP51ED2-20MU 功能描述:8位微控制器 -MCU 64KB 20MHz 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
AT89LP51ED2-20PU 功能描述:8位微控制器 -MCU 64KB 20MHz 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