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IS23SC4442 bảng dữ liệu(PDF) 9 Page - Integrated Silicon Solution, Inc

tên linh kiện IS23SC4442
Giải thích chi tiết về linh kiện  256 BYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY
PDF  21 Pages
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nhà sản xuất  ISSI [Integrated Silicon Solution, Inc]
Trang chủ  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS23SC4442 bảng dữ liệu(HTML) 9 Page - Integrated Silicon Solution, Inc

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Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
9
Rev. 00B
08/01/03
IS23SC4442
ISSI®
Read Main Memory
The command reads out the memory contents from the
given address (N) to the last address of the memory (with
LSB first). After the command entry, the IFD has to
Figure: Read Main Memory
Address (decimal)
Main Memory
Protection Memory
Security Memory
255
Data Byte 255 (D7 ...D0)
——
::
—-
—
32
Data Byte 32 (D7 ... D0)
——
31
Data Byte 31(D7 ... D0)
Protection Bit 31 (D31)
—
::
:
—
1
Data Byte 1 (D7 ... D0)
Protection Bit 1 (D1)
Reference Data Byte 1
(D7...D0)
0
Data Byte 0 (D7 ... D0)
Protection Bit 0 (D0)
Error Counter
provide sufficient clock pluses. The number of clock
pulse = (256 - N) x 8+1. The main memory can always
be read.
B7
B6
B5
B4
B3
B2
B1
B0
Control
Address
Data
A7... A0
D7... D0
0
0
1
1
0
0
0
0
Address
No Effect
00
H
... FF
H
No Effect
30
H
Binary
Hexadecimal
0
1
24
10
D7
B7
B0
Command
CLK
I/O
IC sets I/O
To Level Z
Start
from IFD
...
..
..
...
24
0
1
..
..
D0
D1
D0
D1
D0
Stop
from IFD
Start of
Outgoing Data
Data of
Startaddress
Data of
Startaddress +1
Data of
Startaddress 255
IFD set I/O
to level L
Outgoing Data



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