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參數(shù)資料
| 型號(hào)： | ST6382B1/XXX |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, MICROCONTROLLER, PDIP42 |
| 封裝： | PLASTIC, SDIP-42 |
| 文件頁(yè)數(shù)： | 73/82頁(yè) |
| 文件大?。?/td> | 1651K |
| 代理商： | ST6382B1/XXX |
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Obsolete
Product(s)
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Product(s)
75/82
ST6388, ST63E88, ST63T88
8.2 EPROM/OTP DESCRIPTION
The ST63E88 is the EPROM version of the
ST6388 ROM product. They are intended for use
during the development of an application, and for
pre-production and small volume production. The
ST63T88 OTP has the same characteristics. They
both include EPROM memory instead of the ROM
memory of the ST6388 and so the program and
constants of the program can be easily modified
by the user with the ST63E8x EPROM program-
ming board from STMicroelectronics.
The EPROM OPTION BYTE is programmed by
the EPROM programming board and its associat-
ed software.
The EPROM Option Byte content will define the
OSD options as follows:
b7-2: Not used.
Opt 1: This option bit disconnect the Schmitt trig-
ger of PC7 and PB0 to prevent some electro-mag-
netic problems when these pads are not bonded.
-”0”: Schmitt triggers are connected to I/O’s inputs.
-”1”: Schmitt triggers are disconnected from I/O’s
inputs.
Opt 0: This option bit enables or disables the Pow-
er On/Off Reset.
-”0”: The Power On/Off Reset is enabled.
-”1”: The Power On/Off Reset is disabled.
From a user point of view (with the following ex-
ceptions) the ST63E8x,T8x products have exactly
the same software and hardware features of the
ROM version. An additional mode is used to con-
figure the part for programming of the EPROM,
this is set by a +12.5V voltage applied to the
TEST/VPP
pin.
The
programming
of
the
ST63E8x,T8x is described in the User Manual of
the EPROM Programming board.
On the ST63E88 all the 20140 bytes of PRO-
GRAM memory are available for the user, as all
the EPROM memory can be erased by exposure
to UV light. On the ST63T88 (OTP device) a re-
served area for test purposes exists, as for the
ST6388 ROM device. In order to avoid any dis-
crepancy between program functionality when us-
ing the EPROM, OTP and ROM it is recommend-
ed NOT TO USE THESE RESERVED AREAS,
even when using the ST63E88. Table 4 on
page 10 is a summary of the EPROM/ROM Map
and its reserved area.
THE READER IS ASKED TO REFER TO THE
DATASHEET OF THE ST638x ROM-BASED DE-
VICE FOR FURTHER DETAILS.
8.3 EPROM ERASING
The EPROM of the windowed package of the
ST63E8 may be erased by exposure to Ultra Violet
light.
The
erasure
characteristic
of
the
ST63E88
EPROM is such that erasure begins when the
memory is exposed to light with wave lengths
shorter than approximately 4000. It should be
noted that sunlight and some types of fluorescent
lamps have wavelengths in the range 3000-
4000. It is thus recommended that the window of
the ST63E88 package be covered by an opaque
label to prevent unintentional erasure problems
when testing the application in such an environ-
ment.The recommended erasure procedure of the
ST63E88 EPROM is exposure to short wave ultra-
violet light which has wavelength 2537. The inte-
grated dose (i.e. UV intensity x exposure time) for
erasure should be a minimum of 15 W-sec/cm2.
The erasure time with this dosage is approximate-
ly 15 to 20 minutes using an ultraviolet lamp with
12000mW/cm2
power
rating.
The
ST63E88
should be placed within 2.5cm (1 inch) of the lamp
tubes during erasure.
70
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Opt 1
Opt 0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST6386B1 | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| ST6388B1 | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| ST6387B1 | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| ST6394B1 | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| ST6399B1 | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST6382B4 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
| ST6383 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
| ST6383B1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
| ST6383B4 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
| ST6385 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCUs WITH ON-SCREEN-DISPLAY FOR TV TUNING |
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