參數(shù)資料
型號: W78ERD2A
廠商: WINBOND ELECTRONICS CORP
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 59/76頁
文件大?。?/td> 650K
代理商: W78ERD2A
W78ERD2/W78ERD2A
Publication Release Date: February 14, 2007
- 59 -
Revision A10
MOVC Inhibit
This bit is used to restrict the accessible region of the MOVC instruction. It can prevent a 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 can only access code in external
memory, not in internal memory. A MOVC instruction in internal program memory can always access
both internal and external memory. If this bit is logic-1, there are no restrictions on MOVC.
Encryption
This bit is used to enable and disable the encryption logic for code protection. Once encryption is
enabled, the data presented on port 0 is encoded via encryption logic. This bit can be reset only by
erasing the whole chip.
Oscillator Control
The gain of the on-chip oscillator amplifier can be reduced by bit B7 in the option bits register. If bit 7
is set to zero, the gain is cut in half.
According the circuit in
Figure 20-1
, the values of R, C1 and C2 may need some adjustment when
running at lower gain. Furthermore, reducing the gain by one-half may improperly affect an external
crystal running at frequencies above 25 MHz.
相關(guān)PDF資料
PDF描述
W78ERD2A40DL 8-BIT MICROCONTROLLER
W78ERD2A40FL 8-BIT MICROCONTROLLER
W78ERD2A40PL 8-BIT MICROCONTROLLER
W78ERD2 8-BIT MICROCONTROLLER
W78ERD2A40DN 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W78ERD2A40DL 功能描述:IC MCU 8-BIT 64K FLASH 40-DIP RoHS:是 類別: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 程序存儲器容量:16KB(16K x 8) 程序存儲器類型: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
W78ERD2A40DN 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER
W78ERD2A40FL 功能描述:IC MCU 8-BIT 64K FLASH 44-PQFP RoHS:是 類別: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 程序存儲器容量:16KB(16K x 8) 程序存儲器類型: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
W78ERD2A40FN 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER
W78ERD2A40PL 功能描述:IC MCU 8-BIT 64K FLASH 44-PLCC RoHS:是 類別: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 程序存儲器容量:16KB(16K x 8) 程序存儲器類型: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