- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄11155 > C8051F221-GQR (Silicon Laboratories Inc)IC 8051 MCU 8K FLASH 32LQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | C8051F221-GQR |
| 廠商： | Silicon Laboratories Inc |
| 文件頁(yè)數(shù)： | 132/146頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC 8051 MCU 8K FLASH 32LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Serial Communication Overview |
| 標(biāo)準(zhǔn)包裝： | 500 |
| 系列： | C8051F2xx |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 25MHz |
| 連通性： | SPI，UART/USART |
| 外圍設(shè)備： | 欠壓檢測(cè)/復(fù)位，POR，WDT |
| 輸入/輸出數(shù)： | 22 |
| 程序存儲(chǔ)器容量： | 8KB（8K x 8） |
| 程序存儲(chǔ)器類型： | 閃存 |
| RAM 容量： | 256 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 V ~ 3.6 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 22x8b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 32-LQFP |
| 包裝： | 帶卷 (TR) |
| 配用： | 336-1241-ND - DEV KIT F220/221/226/230/231/236 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)當(dāng)前第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)
C8051F2xx
86
Rev. 1.6
write/erase operations are disabled. Note that code execution in the 8051 is stalled while the Flash is
being programmed or erased.
Non-volatile Data Storage
The Flash memory can be used for non-volatile data storage as well as program code. This allows data
such as calibration coefficients to be calculated and stored at run time. Data is written using the MOVX
instruction and read using the MOVC instruction.
The MCU incorporates an additional 128-byte sector of Flash memory located at 0x2000 – 0x207F. This
sector can be used for program code or data storage. However, its smaller sector size makes it particularly
well suited as general purpose, non-volatile scratchpad memory. Even though Flash memory can be writ-
ten a single byte at a time, an entire sector must be erased first. In order to change a single byte of a multi-
byte data set, the data must be moved to temporary storage. Next, the sector is erased, the data set
updated and the data set returned to the original sector. The 128-byte sector-size facilitates updating data
without wasting program memory space by allowing the use of internal data RAM for temporary storage. (A
normal 512-byte sector is too large to be stored in the 256-byte internal data memory.)
10.2. Security Options
The CIP-51 provides security options to protect the Flash memory from inadvertent modification by soft-
ware as well as prevent the viewing of proprietary program code and constants. The Program Store Write
Enable (PSCTL.0) and the Program Store Erase Enable (PSCTL.1) bits protect the Flash memory from
accidental modification by software. These bits must be explicitly set to logic 1 before software can modify
the Flash memory. Additional security features prevent proprietary program code and data constants from
being read or altered across the JTAG interface or by software running on the system controller.
A set of security lock bytes stored at 0x1DFE and 0x1DFF protect the Flash program memory from being
read or altered across the JTAG interface. Each bit in a security lock-byte protects one 1 kB block of mem-
ory. Clearing a bit to logic 0 in a Read lock byte prevents the corresponding block of Flash memory from
being read across the JTAG interface. Clearing a bit in the Write/Erase lock byte protects the block from
JTAG erasures and/or writes. The Read lock byte is at location 0x1DFF. The Write/Erase lock byte is
located at 0x1DFE. Figure 10.1 shows the location and bit definitions of the security bytes. The 512-byte
sector containing the lock byte cannot be erased by software. Writing to the reserved area should not be
performed.
Table 10.1. Flash Memory Electrical Characteristics
VDD = 2.7 to 3.6 V, –40 to +85 ×C unless otherwise specified.
Parameter
Conditions
Min
Typ
Max
Units
Endurance
20 k
100 k
—
Erase/Wr
Erase/Write Cycle Time
—
10
—
ms
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4917AELT+T | IC SWITCH 1X1 6UTDFN |
| C8051F221-GQ | IC 8051 MCU 8K FLASH 32LQFP |
| MAX4917BEUK+T | IC SWITCH 1X1 SOT23-5 |
| MAX4915AELT+T | IC SWITCH 1X1 6UTDFN |
| MAX4915BELT+T | IC SWITCH 1X1 6UTDFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C8051F221R | 功能描述:8位微控制器 -MCU T-8 32 Pin 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| C8051F226 | 功能描述:8位微控制器 -MCU 8KB 8ADC 1KRam 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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 |
| C8051F226DK | 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(chǎn)品:Development Kits 工具用于評(píng)估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| C8051F226DK-A | 功能描述:DEV KIT F220/221/226/230/231/236 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過(guò)時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊(cè) 其它名稱:520-1035 |
| C8051F226DK-B | 功能描述:DEV KIT F220/221/226/230/231/236 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過(guò)時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊(cè) 其它名稱:520-1035 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。