công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

SRI4K bảng dữ liệu(PDF) 17 Page - STMicroelectronics

tên linh kiện SRI4K
Giải thích chi tiết về linh kiện  13.56 MHz short-range contactless memory chip with 4096-bit EEPROM and anticollision functions
PDF  46 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SRI4K bảng dữ liệu(HTML) 17 Page - STMicroelectronics

Back Button SRI4K_11 Datasheet HTML 13Page - STMicroelectronics SRI4K_11 Datasheet HTML 14Page - STMicroelectronics SRI4K_11 Datasheet HTML 15Page - STMicroelectronics SRI4K_11 Datasheet HTML 16Page - STMicroelectronics SRI4K_11 Datasheet HTML 17Page - STMicroelectronics SRI4K_11 Datasheet HTML 18Page - STMicroelectronics SRI4K_11 Datasheet HTML 19Page - STMicroelectronics SRI4K_11 Datasheet HTML 20Page - STMicroelectronics SRI4K_11 Datasheet HTML 21Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 17 / 46 page
background image
SRI4K
Memory mapping
Doc 11605 Rev 5
17/46
4.3
EEPROM area
The 121 blocks between addresses 7 and 127 are EEPROM blocks of 32 bits each (484
bytes in total). (See Figure 17 for a map of the area.) These blocks can be accessed using
the Read_block and Write_block commands. The Write_block command for the EEPROM
area always includes an auto-erase cycle prior to the write cycle.
Blocks 7 to 15 can be write-protected. Write access is controlled by the 8 bits of the
OTP_Lock_Reg located at block address 255 (see “OTP_Lock_Reg” for details). Once
protected, these blocks (7 to 15) cannot be unprotected.
Figure 17.
EEPROM (addresses 7 to 127)
4.4
System area
This area is used to modify the settings of the SRI4K. It contains 3 registers:
OTP_Lock_Reg, Fixed Chip_ID and ST Reserved. See Figure 18 for a map of this area.
A Write_block command in this area will not erase the previous contents. Selected bits can
thus be set from 1 to 0. All bits previously at 0 remain unchanged. Once all the 32 bits of a
block are at 0, the block is empty and cannot be updated any more.
Block
address
MSb
b31
32-bit block
b16 b15
b24 b23
b8 b7
LSb
b0
Description
Lockable
EEPROM
7
8
9
10
11
User area
User area
User area
User area
User area
Ai07662c
13
14
15
16
...
User area
User area
User area
User area
User area
12
127
User area
User area
EEPROM



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 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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