Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

M36W108AT Datasheet(PDF) 6 Page - STMicroelectronics

Part No. M36W108AT
Description  8 Mbit 1Mb x8, Boot Block Flash Memory and 1 Mbit 128Kb x8 SRAM Low Voltage Multi-Memory Product
Download  36 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo 

M36W108AT Datasheet(HTML) 6 Page - STMicroelectronics

Zoom Inzoom in Zoom Outzoom out
 6 / 36 page
background image
M36W108AT, M36W108AB
6/36
FLASH MEMORY COMPONENT
Organization and Architecture
Organization. The Flash chip is organized as
1Mbit x 8. The memory uses the address inputs
A0-A19 and the Data Input/Outputs DQ0-DQ7.
Memory control is provided by Chip Enable (EF),
Output Enable (G) and Write Enable (W) inputs.
Erase and Program operations are controlled by
an internal Program/Erase Controller (P/E.C.).
Status Register data output on DQ7 provides a
Data Polling signal, while Status Register data out-
puts on DQ6 and DQ2 provide Toggle signals to
indicate the state of the P/E.C. operations. A
Ready/Busy (RB) output indicates the completion
of the internal algorithms.
Memory Blocks. The device features asymmetri-
cally blocked architecture providing system mem-
ory integration. Both Top and Bottom Boot Block
devices have an array of 19 blocks, one Boot
Block of 16K Bytes, two Parameter Blocks of 8K
Bytes, one Main Block of 32K Bytes and fifteen
Main Blocks of 64K Bytes. The Top Boot Block
version has the Boot Block at the top of the mem-
ory address space and the Bottom Boot Block ver-
sion locates the Boot Block starting at the bottom.
The memory maps and block address tables are
showed in Figures 4, 5 and Tables 4, 5. Each
block can be erased separately, any combination
of blocks can be specified for multi-block erase or
the entire chip may be erased. The Erase opera-
tions are managed automatically by the P/E.C.
The block erase operation can be suspended in
order to read from or program to any block not be-
ing erased, and then resumed.
Device Operations
The following operations can be performed using
the appropriate bus cycles: Read Array, Write
command, Output Disable, Standby and Reset
(see Table 6).
Read. Read operations are used to output the
contents of the Memory Array, the Electronic Sig-
nature or the Status Register. Both Chip Enable
(EF) and Output Enable (G) must be low, with
Write Enable (W) high, in order to read the output
of the memory.
Table 4. Top Boot Block, Flash Block Address
Size (KWord)
Address Range
16
FC000h-FFFFFh
8
FA000h-FBFFFh
8
F8000h-F9FFFh
32
F0000h-F7FFFh
64
E0000h-EFFFFh
64
D0000h-DFFFFh
64
C0000h-CFFFFh
64
B0000h-BFFFFh
64
A0000h-AFFFFh
64
90000h-9FFFFh
64
80000h-8FFFFh
64
70000h-7FFFFh
64
60000h-6FFFFh
64
50000h-5FFFFh
64
40000h-4FFFFh
64
30000h-3FFFFh
64
20000h-2FFFFh
64
10000h-1FFFFh
64
00000h-0FFFFh
Table 5. Bottom Boot Block, Flash Block
Address
Size (KWord)
Address Range
64
F0000h-FFFFFh
64
E0000h-EFFFFh
64
D0000h-DFFFFh
64
C0000h-CFFFFh
64
B0000h-BFFFFh
64
A0000h-AFFFFh
64
90000h-9FFFFh
64
80000h-8FFFFh
64
70000h-7FFFFh
64
60000h-6FFFFh
64
50000h-5FFFFh
64
40000h-4FFFFh
64
30000h-3FFFFh
64
20000h-2FFFFh
64
10000h-1FFFFh
32
08000h-0FFFFh
8
06000h-07FFFh
8
04000h-05FFFh
16
00000h-03FFFh


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 


Datasheet Download




Link URL




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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   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