- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄363899 > W78ERD2A40FN (WINBOND ELECTRONICS CORP) 8-BIT MICROCONTROLLER PDF資料下載
參數(shù)資料
| 型號(hào)： | W78ERD2A40FN |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | PLASTIC, QFP-44 |
| 文件頁(yè)數(shù)： | 56/72頁(yè) |
| 文件大?。?/td> | 606K |
| 代理商： | W78ERD2A40FN |
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)當(dāng)前第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)
W78ERD2
- 56 -
16. OPTION BITS
During the on-chip Flash EPROM programming mode, the Flash EPROM can be programmed and
verified repeatedly. Until the code inside the Flash EPROM is confirmed OK, the code can be
protected. The protection of Flash EPROM and those operations on it are described below.
64KB Flash EPROM
Program Memory
AP Flash EPROM
4KB Flash EPROM
Program Memory
LD Flash EPROM
0000H
FFFFH
0FFFH
Reserved
Security Register
Option Bits
B0
D7
B7
D6
B6
D5
B5
D4
B4
D3
B3
D2
B2
D1
B1
D0
B0: Lock bit, Logic 0 is active
B1: MOVC Inhibit, Logic 0 is active
B2: Encryption bit, Logic 0 is active
B3: logic 1 is 12 clock per machine cycle
logic 0 is 6 clock per machine cycle
B4: Enable P2.7 and P2.6 as H/W Reboot Function
logic 1: P2.7 and P2.6 are as I/O Function
logic 0: P2.7 and P2.6 are as H/W Reboot Function
B5: Enable P4.3 as H/W Reboot Function
logic 1: P4.3 is as I/O Function
logic 0: P4.3 is as H/W Reboot Function
B6: Reserved (0)
B7: Logic 1: The Crystal Frequency is above 25MHz
Logic 0: The Crystal Frequency is under 25MHz
Default 1 is for all Security Bits.
The Reserved bit must be kept in logic 1.
Special Setting Register
Lock bit
This bit is used to protect the customer's program code in the W78ERD2. It may be set after the
programmer finishes the programming and verifies sequence. Once this bit is set to logic 0, both the
Flash EPROM data and Special Setting Registers can not be accessed again.
MOVC Inhibit
This bit is used to restrict the accessible region of the MOVC instruction. It can prevent the MOVC
instruction in external program memory from reading the internal program code. When this bit is set to
logic 0, a MOVC instruction in external program memory space will be able to access code only in the
external memory, not in the internal memory. A MOVC instruction in internal program memory space
will always be able to access the ROM data in both internal and external memory. If this bit is logic 1,
there are no restrictions on the MOVC instruction.
Encryption
This bit is used to enable/disable the encryption logic for code protection. Once encryption feature is
enabled, the data presented on port 0 will be encoded via encryption logic. Only whole chip erase will
reset this bit.
Oscillator Control
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78ERD2A40PN | 8-BIT MICROCONTROLLER |
| W78IE52 | 8 BIT MICROCONTROLLER |
| W78IE54 | 8-BIT MTP Monitor Microcontroller(多次可編程的8位的監(jiān)視微控制器) |
| W78IE54P | 8-BIT MTP MICROCONTROLLER |
| W78IRD2 | 8-BIT MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78ERD2A40PL | 功能描述:IC MCU 8-BIT 64K FLASH 44-PLCC RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W78 標(biāo)準(zhǔn)包裝:300 系列:78K0R/Ix3 核心處理器:78K/0R 芯體尺寸:16-位 速度:40MHz 連通性:3 線 SIO，I²C，LIN，UART/USART 外圍設(shè)備:DMA，LVD，POR，PWM，WDT 輸入/輸出數(shù):27 程序存儲(chǔ)器容量:16KB（16K x 8） 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:38-SSOP 包裝:托盤(pán) |
| W78ERD2A40PN | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78I052A | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78I052A24DL | 制造商:WINBOND 制造商全稱(chēng):Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78I052A24PL | 功能描述:IC MCU 8-BIT 8K FLASH 40-DIP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W78 標(biāo)準(zhǔn)包裝:60 系列:PSOC® 3 CY8C38xx 核心處理器:8051 芯體尺寸:8-位 速度:67MHz 連通性:EBI/EMI，I²C，LIN，SPI，UART/USART 外圍設(shè)備:電容感應(yīng)，DMA，LCD，POR，PWM，WDT 輸入/輸出數(shù):25 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類(lèi)型:閃存 EEPROM 大小:2K x 8 RAM 容量:8K x 8 電壓 - 電源 (Vcc/Vdd):1.71 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 2x20b，D/A 4x8b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-VFQFN 裸露焊盤(pán) 包裝:托盤(pán) |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。