參數(shù)資料
型號: AT89LP428-20MH
廠商: Atmel
文件頁數(shù): 145/149頁
文件大?。?/td> 0K
描述: MCU 8051 4K FLASH SPI 32VQFN
產(chǎn)品培訓模塊: MCU Product Line Introduction
標準包裝: 490
系列: 89LP
核心處理器: 8051
芯體尺寸: 8-位
速度: 20MHz
連通性: SPI,UART/USART
外圍設備: 欠壓檢測/復位,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-VFQFN 裸露焊盤
包裝: 托盤
95
3654A–MICRO–8/09
AT89LP428/828
17.3
Pin Configuration
When the SPI is enabled (SPE = 1), the data direction of the MOSI, MISO, SCK, and SS pins is
automatically overridden according to the MSTR bit as shown in Table 17-1. The user doesn’t
need to reconfigure the pins when switching from master to slave or vice-versa. For more details
on port configuration, refer to “Port Configuration” on page 35.
.
Notes:1. In these modes MOSI is active only during transfers. MOSI will be pulled high between transfers to allow other masters to
control the line.
2. In Push-pull mode MOSI is active only during transfers, otherwise it is tristated to prevent line contention. A weak external
pull-up may be required to prevent MOSI from floating.
Table 17-1.
SPI Pin Configuration and Behavior when SPE = 1
Pin
Mode
Master (MSTR = 1)
Slave (MSTR = 0)
SCK
Quasi-bidirectionalOutputInput (Internal Pull-up)
Push-pull OutputOutputInput (Tristate)
Input-only
No output (Tristated)
Input (Tristate)
Open-drain OutputOutput
Input (External Pull-up)
MOSI
Quasi-bidirectionalOutput(1)
Input (Internal Pull-up)
Push-pull OutputOutput(2)
Input (Tristate)
Input-only
No output (Tristated)
Input (Tristate)
Open-drain OutputOutput(1)
Input (External Pull-up)
MISO
Quasi-bidirectionalInput (Internal Pull-up)
Output (SS = 0)
Internal Pull-up (SS = 1 or DISSO = 1)
Push-pull OutputInput (Tristate)
Output (SS = 0)
Tristated (SS = 1 or DISSO = 1)
Input-only
Input (Tristate)
No output (Tristated)
Open-drain OutputInput (External Pull-up)
Output (SS = 0)
External Pull-up (SS = 1 or DISSO = 1)
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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 安裝風格:SMD/SMT
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