參數(shù)資料
型號: AT89LP2052-20PU
廠商: Atmel
文件頁數(shù): 48/94頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 2K 20DIP
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 18
系列: 89LP
核心處理器: 8051
芯體尺寸: 8-位
速度: 20MHz
連通性: SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 15
程序存儲器容量: 2KB(2K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.4 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-DIP(0.300",7.62mm)
包裝: 管件
產(chǎn)品目錄頁面: 616 (CN2011-ZH PDF)
52
3547J–MICRO–10/09
AT89LP2052/LP4052
S
22. Instruction Set Summary
The AT89LP2052/LP4052 is fully binary compatible with the MCS-51 instruction set. The
difference between the AT89LP2052/LP4052 and the standard 8051 is the number of cycles
required to execute an instruction. Instructions in the AT89LP2052/LP4052 may take 1, 2, 3 or 4
clock cycles to complete. The execution times of most instructions may be computed using
Table 21-2.
WDTCON – Watchdog Control Register
WDTCON Address = A7H
Reset Value = 0000 XX00B
Not Bit Addressable
PS2
PS1
PS0
WDIDLE
WDTOVF
WDTEN
Bit
7
654
321
0
Symbol
Function
PS2
PS1
PS0
Prescaler bits for the watchdog timer (WDT). When all three bits are cleared to 0, the watchdog timer has a nominal
period of 16K clock cycles. When all three bits are set to 1, the nominal period is 2048K clock cycles.
WDIDLE
Disable/enable the Watchdog Timer in IDLE mode. When WDIDLE = 0, WDT continues to count in IDLE mode. When
WDIDLE = 1, WDT freezes while the device is in IDLE mode.
WDTOVF
Watchdog Overflow Flag. Set when a WDT reset is generated by the WDT timer overflow. Also set when an incorrect
sequence is written to WDTRST. Must be cleared by software.
WDTEN
Watchdog Enable Flag. This bit is READ-ONLY and reflects the status of the WDT (whether it is running or not). The
WDT is disabled after any reset and must be re-enabled by writing 1EH/E1H to WDTRST
Table 21-3.
WDTRST – Watchdog Reset Register
WDTCON Address = A6H
(Write-Only)
Not Bit Addressable
–––
––
Bit
7
654
321
0
The WDT is enabled by writing the sequence 1EH/E1H to the WDTRST SFR. The current status may be checked by reading
the WDTEN bit in WDTCON. To prevent the WDT from resetting the device, the same sequence 1EH/E1H must be written to
WDTRST before the time-out interval expires.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT89LP2052-20SU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K FLASH 20MHZ 2.4-5.5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LP2052-20XU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K FLASH-20MHZ 2.4-5.5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LP2052W-10PU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K ISP FLASH 2.0-3.6V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LP2052W-10SU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K ISP FLASH 2.0-3.6V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89LP2052W-10XU 功能描述:8位微控制器 -MCU SINGLE CYCLE 2K ISP FLASH 2.0-3.6V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT