參數資料
型號: C8051F002-GQ
廠商: Silicon Laboratories Inc
文件頁數: 166/171頁
文件大?。?/td> 0K
描述: IC 8051 MCU 32K FLASH 32LQFP
產品培訓模塊: Serial Communication Overview
標準包裝: 250
系列: C8051F00x
核心處理器: 8051
芯體尺寸: 8-位
速度: 20MHz
連通性: SMBus(2 線/I²C),SPI,UART/USART
外圍設備: 欠壓檢測/復位,POR,PWM,溫度傳感器,WDT
輸入/輸出數: 8
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
數據轉換器: A/D 4x12b; D/A 2x12b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 32-LQFP
包裝: 托盤
產品目錄頁面: 621 (CN2011-ZH PDF)
配用: 336-1246-ND - DEV KIT F300/301/302/303/304/305
其它名稱: 336-1186
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
13.1.
Power-on Reset
The C8051F000 family incorporates a power supply monitor that holds the MCU in the reset state until VDD rises
above the VRST level during power-up. (See Figure 13.2 for timing diagram, and refer to Table 13.1 for the
Electrical Characteristics of the power supply monitor circuit.) The /RST pin is asserted (low) until the end of the
100ms VDD Monitor timeout in order to allow the VDD supply to become stable.
On exit from a power-on reset, the PORSF flag (RSTSRC.1) is set by hardware to logic 1. All of the other reset
flags in the RSTSRC Register are indeterminate. PORSF is cleared by a reset from any other source. Since all
resets cause program execution to begin at the same location (0x0000), software can read the PORSF flag to
determine if a power-up was the cause of reset. The content of internal data memory should be assumed to be
undefined after a power-on reset.
13.2.
Software Forced Reset
Writing a 1 to the PORSF bit forces a Power-On Reset as described in Section 13.1.
Figure 13.2. VDD Monitor Timing Diagram
/RST
t
vol
ts
1.0
2.0
Logic HIGH
Logic LOW
100ms
V
D
2.70
2.40
V
RST
13.3.
Power-fail Reset
When a power-down transition or power irregularity causes VDD to drop below VRST, the power supply monitor
will drive the /RST pin low and return the CIP-51 to the reset state (see Figure 13.2). When VDD returns to a level
above VRST, the CIP-51 will leave the reset state in the same manner as that for the power-on reset. Note that even
though internal data memory contents are not altered by the power-fail reset, it is impossible to determine if VDD
dropped below the level required for data retention. If the PORSF flag is set, the data may no longer be valid.
Rev. 1.7
94
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相關代理商/技術參數
參數描述
C8051F002-GQR 功能描述:8位微控制器 -MCU 32KB 12ADC 32Pin MCU Tape and Reel RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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
C8051F002R 功能描述:8位微控制器 -MCU C 12Bit 32Pin RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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
C8051F005 功能描述:8位微控制器 -MCU 32KB 12ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 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
C8051F005/0046 制造商:Silicon Laboratories Inc 功能描述:
C8051F005DK 功能描述:開發(fā)板和工具包 - 8051 MCU DEVELOPMENT KIT W/ US POWER SUPPLY RoHS:否 制造商:Silicon Labs 產品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: