參數(shù)資料
型號： W78ERD2A40DN
廠商： WINBOND ELECTRONICS CORP
元件分類： 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, PDIP40
封裝： DIP-40
文件頁數(shù)： 3/72頁
文件大?。?/td> 606K
代理商： W78ERD2A40DN
W78ERD2
Publication Release Date: April 20, 2005
- 3 -
Revision A4
1. GENERAL DESCRIPTION
The W78ERD2 is an 8-bit microcontroller which has an in-system programmable Flash EPROM for
firmware updating. The instruction set of the W78ERD2 is fully compatible with the standard 8052. The
W78ERD2 contains a 64K bytes of main Flash EPROM and a 4K bytes of auxiliary Flash EPROM
which allows the contents of the 64KB main Flash EPROM to be updated by the loader program
located at the 4KB auxiliary Flash EPROM ROM; 256 bytes of on-chip RAM, 1K AUX-RAM; four 8-bit
bi-directional and bit-addressable I/O ports; an additional 4-bit port P4; three 16-bit timer/counters; a
serial port. These peripherals are supported by a nine sources four level interrupt capability. To
facilitate programming and verification, the Flash EPROM inside the W78ERD2 allows the program
memory to be programmed and read electronically. Once the code is confirmed, the user can protect
the code for security.
The W78ERD2 microcontroller has two power reduction modes, idle mode and power-down mode,
both of which are software selectable. The idle mode turns off the processor clock but allows for
continued peripheral operation. The power-down mode stops the crystal oscillator for minimum power
consumption. The external clock can be stopped at any time and in any state without affecting the
processor.
2. FEATURES
8-bit CMOS microcontroller
Pin compatible with standard 80C52
Instruction-set compatible with MCS-51
Four 8-bit I/O Ports
One extra 4-bit I/O port, interrupt, chip select function
Three 16-bit Timers
Programmable clock out
Programmable Counter Array (PCA): PWM, Capture, Compare, Watchdog
9
interrupt sources with 4 levels of priority
One enhanced full duplex serial port with framing error detection and automatic address
recognition
64KB In-system Programmable Flash EPROM (AP Flash EPRAOM)
4KB Auxiliary Flash EPROM for loader program (LD Flash EPROM)
256+1K bytes of on-chip RAM. (Including 1K bytes of AUX-RAM, software selectable)
Software Reset
12 clocks per machine cycle operation (default). Speed up to 40 MHz.
6
clocks per machine cycle operation which is set by the writer. Speed up to 20 MHz.
2 DPTR registers
Low EMI (inhibit ALE)
Built-in power management with idle mode and power down mode
Code protection
Packages:
DIP 40: W78ERD2A40DN
PLCC 44: W78ERD2A40PN
QFP 44: W78ERD2A40FN
相關(guān)PDF資料
PDF描述
W78ERD2A40FN 8-BIT MICROCONTROLLER
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)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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 標準包裝: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 標準包裝: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
W78ERD2A40PN 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER
W78I052A 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER
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