Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

M27C322-100S1 Datasheet(PDF) 10 Page - STMicroelectronics

Part # M27C322-100S1
Description  32 Mbit (2Mb x16) UV EPROM and OTP EPROM
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M27C322-100S1 Datasheet(HTML) 10 Page - STMicroelectronics

Back Button M27C322-100S1 Datasheet HTML 6Page - STMicroelectronics M27C322-100S1 Datasheet HTML 7Page - STMicroelectronics M27C322-100S1 Datasheet HTML 8Page - STMicroelectronics M27C322-100S1 Datasheet HTML 9Page - STMicroelectronics M27C322-100S1 Datasheet HTML 10Page - STMicroelectronics M27C322-100S1 Datasheet HTML 11Page - STMicroelectronics M27C322-100S1 Datasheet HTML 12Page - STMicroelectronics M27C322-100S1 Datasheet HTML 13Page - STMicroelectronics M27C322-100S1 Datasheet HTML 14Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 24 page
background image
Device operation
M27C322
10/24
2.9
Electronic Signature
The Electronic Signature (ES) mode allows the reading out of a binary code from an
EPROM that will identify its manufacturer and type. This mode is intended for use by
programming equipment to automatically match the device to be programmed with its
corresponding programming algorithm. The ES mode is functional in the 25°C ± 5°C
ambient temperature range that is required when programming the M27C322. To activate
the ES mode, the programming equipment must force 11.5V to 12.5V on address line A9 of
the M27C322, with VPP = VCC = 5V. Two identifier bytes may then be sequenced from the
device outputs by toggling address line A0 from VIL to VIH. All other address lines must be
held at VIL during Electronic Signature mode.
Byte 0 (A0 = VIL) represents the manufacturer code and byte 1 (A0 = VIH) the device
identifier code. For the STMicroelectronics M27C322, these two identifier bytes are given in
Table 3. and can be read-out on outputs Q0 to Q7.
2.10
Erasure operation (applies to UV EPROM)
The erasure characteristics of the M27C322 is such that erasure begins when the cells are
exposed to light with wavelengths shorter than approximately 4000 Å. It should be noted
that sunlight and some type of fluorescent lamps have wavelengths in the 3000-4000 Å
range. Research shows that constant exposure to room level fluorescent lighting could
erase a typical M27C322 in about 3 years, while it would take approximately 1 week to
cause erasure when exposed to direct sunlight. If the M27C322 is to be exposed to these
types of lighting conditions for extended periods of time, it is suggested that opaque labels
be put over the M27C322 window to prevent unintentional erasure. The recommended
erasure procedure for M27C322 is exposure to short wave ultraviolet light which has a
wavelength of 2537 Å. The integrated dose (i.e. UV intensity x exposure time) for erasure
should be a minimum of 30 W-sec/cm2. The erasure time with this dosage is approximately
30 to 40 minutes using an ultraviolet lamp with 12000 µW/cm2 power rating. The M27C322
should be placed within 2.5cm (1 inch) of the lamp tubes during the erasure. Some lamps
have a filter on their tubes which should be removed before erasure.


Similar Part No. - M27C322-100S1

ManufacturerPart #DatasheetDescription
logo
STMicroelectronics
M27C322-100F1 STMICROELECTRONICS-M27C322-100F1 Datasheet
112Kb / 13P
   32 Mbit (2Mb x16) UV EPROM and OTP EPROM
April 2000
M27C322-100F3 STMICROELECTRONICS-M27C322-100F3 Datasheet
112Kb / 13P
   32 Mbit (2Mb x16) UV EPROM and OTP EPROM
April 2000
M27C322-100F6 STMICROELECTRONICS-M27C322-100F6 Datasheet
112Kb / 13P
   32 Mbit (2Mb x16) UV EPROM and OTP EPROM
April 2000
M27C322-100P1 STMICROELECTRONICS-M27C322-100P1 Datasheet
112Kb / 13P
   32 Mbit (2Mb x16) UV EPROM and OTP EPROM
April 2000
M27C322-100P3 STMICROELECTRONICS-M27C322-100P3 Datasheet
112Kb / 13P
   32 Mbit (2Mb x16) UV EPROM and OTP EPROM
April 2000
More results

Similar Description - M27C322-100S1

ManufacturerPart #DatasheetDescription
logo
STMicroelectronics
M27C322 STMICROELECTRONICS-M27C322 Datasheet
112Kb / 13P
   32 Mbit (2Mb x16) UV EPROM and OTP EPROM
April 2000
M27V322 STMICROELECTRONICS-M27V322 Datasheet
112Kb / 13P
   32 Mbit (2Mb x16) Low Voltage UV EPROM and OTP EPROM
March 2000
M27C160 STMICROELECTRONICS-M27C160 Datasheet
187Kb / 19P
   16 Mbit 2Mb x8 or 1Mb x16 UV EPROM and OTP EPROM
M27V322 STMICROELECTRONICS-M27V322_06 Datasheet
178Kb / 23P
   32 Mbit (2Mb 횞16) low-voltage UV EPROM and OTP EPROM
M27C4002 STMICROELECTRONICS-M27C4002 Datasheet
196Kb / 18P
   4 Mbit (256Kb x16) UV EPROM and OTP EPROM
M27C1024 STMICROELECTRONICS-M27C1024 Datasheet
106Kb / 15P
   1 Mbit (64Kb x16) UV EPROM and OTP EPROM
M27C4002 STMICROELECTRONICS-M27C4002_06 Datasheet
225Kb / 24P
   4 Mbit (256Kb x16) UV EPROM and OTP EPROM
M27C4002-10C1 STMICROELECTRONICS-M27C4002-10C1 Datasheet
236Kb / 24P
   4 Mbit (256Kb x16) UV EPROM and OTP EPROM
M27C202 STMICROELECTRONICS-M27C202 Datasheet
174Kb / 15P
   2 Mbit (128Kb x16) UV EPROM and OTP EPROM
M27V320 STMICROELECTRONICS-M27V320 Datasheet
144Kb / 15P
   32 Mbit (4Mb x8 or 2Mb x16) OTP EPROM
August 2002
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com