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參數(shù)資料
| 型號(hào)： | TS80C51RA2-MCMD |
| 廠商： | Atmel Corp. |
| 英文描述： | High Performance 8-bit Microcontrollers |
| 中文描述： | 高性能8位微控制器 |
| 文件頁(yè)數(shù)： | 55/74頁(yè) |
| 文件大小： | 903K |
| 代理商： | TS80C51RA2-MCMD |
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Rev. C - 06 March, 2001
55
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
Figure 19. Programming and Verification Signal’s Waveform
8.4. EPROM Erasure (Windowed Packages Only)
Erasing the EPROM erases the code array, the encryption array and the lock bits returning the parts to full
functionality.
Erasure leaves all the EPROM cells in a 1’s state (FF).
8.4.1. Erasure Characteristics
The recommended erasure procedure is exposure to ultraviolet light (at 2537 ) to an integrated dose at least 15
W-sec/cm
2
. Exposing the EPROM to an ultraviolet lamp of 12,000
μ
W/cm
2
rating for 30 minutes, at a distance
of about 25 mm, should be sufficient. An exposure of 1 hour is recommended with most of standard erasers.
Erasure of the EPROM begins to occur when the chip is exposed to light with wavelength shorter than approximately
4,000 . Since sunlight and fluorescent lighting have wavelengths in this range, exposure to these light sources
over an extended time (about 1 week in sunlight, or 3 years in room-level fluorescent lighting) could cause
inadvertent erasure. If an application subjects the device to this type of exposure, it is suggested that an opaque
label be placed over the window.
Control sig-
nals
Data In
ALE/PROG
A0-A12
Programming Cycle
100
μ
s
D0-D7
EA/VPP
Data Out
Read/Verify Cycle
12.75V
5V
0V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TS80C51RA2-VCKB | High Performance 8-bit Microcontrollers |
| TS80C51RA2-VCKD | High Performance 8-bit Microcontrollers |
| TS80C51RA2-VCKR | High Performance 8-bit Microcontrollers |
| TS87C51RD2 | High Performance 8-bit Microcontrollers |
| TS83C51RD2 | High Performance 8-bit Microcontrollers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS80C51RA2-MCMR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-MCNB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-MCND | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-MCNR | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-MIA | 功能描述:IC MCU 8BIT 256BYTE 40MHZ 40-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:80C 標(biāo)準(zhǔn)包裝:9 系列:87C 核心處理器:8051 芯體尺寸:8-位 速度:40/20MHz 連通性:UART/USART 外圍設(shè)備:POR，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:32KB（32K x 8） 程序存儲(chǔ)器類型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:0°C ~ 70°C 封裝/外殼:40-DIP（0.600"，15.24mm） 包裝:管件 |
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