參數(shù)資料
型號: AT89LP428-20JU
廠商: Atmel
文件頁數(shù): 139/149頁
文件大?。?/td> 0K
描述: MCU 8051 4K FLASH SPI 32PLCC
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 32
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): 30
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 768 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: 32-LCC(J 形引線)
包裝: 管件
9
3654A–MICRO–8/09
AT89LP428/828
3.1
Program Memory
The AT89LP428/828 contains 4K/8K bytes of on-chip In-System Programmable Flash memory
for program storage. The Flash memory has an endurance of at least 100,000 write/erase
cycles and a minimum data retention time of 10 years. The reset and interrupt vectors are
located within the first 83 bytes of program memory (refer to Table 9-1 on page 30). Constant
tables can be allocated within the entire 4K/8K program memory address space for access by
the MOVC instruction. The AT89LP428/828 does not support external program memory. A map
of the AT89LP428/828 program memory is shown in Figure 3-1.
Figure 3-1.
Program Memory Map
3.1.1
SIG
In addition to the 4K/8K code space, the AT89LP428/828 also supports a 128-byte User
Signature Array and a 64-byte Atmel Signature Array that are accessible by the CPU. The Atmel
Signature Array is initialized with the Device ID in the factory. The second page of the User Sig-
nature Array (00C0H - 00FFH) is initialized with analog configuration data including the Internal
RC Oscillator calibration byte. The User Signature Array is also available for user identification
codes or constant parameter data. Data stored in the signature array is not secure. Security bits
will disable writes to the array; however, reads by an external device programmer are always
allowed.
Table 3-2.
AT89LP828 Memory Address Spaces
Name
Description
Range
DATA
Directly addressable internal RAM
00H - 7FH
IDATA
Indirectly addressable internal RAM and stack space
00H - FFH
SFR
Directly addressable I/O register space
80H - FFH
EDATA
On-chip Extra RAM
0000H - 01FFH
FDATA
On-chip nonvolatile Flash data memory
0200H - 05FFH
CODE
On-chip nonvolatile Flash program memory
0000H - 1FFFH
SIG
On-chip nonvolatile Flash signature array
0000H - 00FFH
Program Memory
0000
1FFF
0000
003F
User Signature Array
0080
00FF
Atmel Signature Array
SIGEN = 0
SIGEN = 1
Program Memory
0000
0FFF
0000
003F
User Signature Array
0080
00FF
Atmel Signature Array
AT89LP428
AT89LP828
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AT89LP428-20MH 功能描述:8位微控制器 -MCU SingleCycle 8051 4K ISP Flash 2.4V 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
AT89LP428-20PU 功能描述:8位微控制器 -MCU SingleCycle 8051 4K ISP Flash 2.4V 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
AT89LP51-20AU 功能描述:8位微控制器 -MCU Single Cycle 8051 4K ISP FL 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
AT89LP51-20JU 功能描述:8位微控制器 -MCU Single Cycle 8051 4K ISP FL 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
AT89LP51-20MU 功能描述:8位微控制器 -MCU Single Cycle 8051 4K ISP FL 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