Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

M29W800AT Datasheet(PDF) 18 Page - STMicroelectronics

Part No. M29W800AT
Description  8 Mbit 1Mb x8 or 512Kb x16, Boot Block Low Voltage Single Supply Flash Memory
Download  33 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo 

M29W800AT Datasheet(HTML) 18 Page - STMicroelectronics

Zoom Inzoom in Zoom Outzoom out
 18 / 33 page
background image
M29W800AT, M29W800AB
18/33
Table 18. Write AC Characteristics, W Controlled
(TA = 0 to 70°C, –20 to 85°C or –40 to 85°C)
Note: 1. Sampled only, not 100% tested.
2. This timing is for Temporary Block Unprotection operation.
Symbol
Alt
Parameter
M29W800AT / M29W800AB
Unit
100
120
VCC = 2.7V to 3.6V
CL = 30pF
VCC = 2.7V to 3.6V
CL = 30pF
Min
Max
Min
Max
tAVAV
tWC
Address Valid to Next Address Valid
100
120
ns
tAVWL
tAS
Address Valid to Write Enable Low
0
0
ns
tDVWH
tDS
Input Valid to Write Enable High
45
50
ns
tELWL
tCS
Chip Enable Low to Write Enable Low
0
0
ns
tGHWL
Output Enable High to Write Enable Low
0
0
ns
tPHPHH
(1, 2)
tVIDR
RP Rise Time to VID
500
500
ns
tPHWL
(1)
tRSP
RP High to Write Enable Low
4
4
µs
tPLPX
tRP
RP Pulse Width
500
500
ns
tVCHEL
tVCS
VCC High to Chip Enable Low
50
50
µs
tWHDX
tDH
Write Enable High to Input Transition
0
0
ns
tWHEH
tCH
Write Enable High to Chip Enable High
0
0
ns
tWHGL
tOEH
Write Enable High to Output Enable Low
0
0
ns
tWHRL
(1)
tBUSY
Program Erase Valid to RB Delay
90
90
ns
tWHWL
tWPH
Write Enable High to Write Enable Low
30
30
ns
tWLAX
tAH
Write Enable Low to Address Transition
45
50
ns
tWLWH
tWP
Write Enable Low to Write Enable High
35
50
ns
During the execution of the erase by the P/E.C.,
the memory accepts only the Erase Suspend ES
and Read/Reset RD instructions. Data Polling bit
DQ7 returns ’0’ while the erasure is in progress
and ’1’ when it has completed. The Toggle bit DQ2
and DQ6 toggle during the erase operation. They
stop when erase is completed. After completion
the Status Register bit DQ5 returns ’1’ if there has
been an erase failure. In such a situation, the Tog-
gle bit DQ2 can be used to determine which block
is not correctly erased. In the case of erase failure,
a Read/Reset RD instruction is necessary in order
to reset the P/E.C.
Chip Erase (CE) Instruction. This
instruction
uses six write cycles. The Erase Set-up command
80h is written to address AAAh in the Byte-wide
configuration or the address 555h in the Word-
wide configuration on the third cycle after the two
Coded cycles. The Chip Erase Confirm command
10h is similarly written on the sixth cycle after an-
other two Coded cycles. If the second command
given is not an erase confirm or if the Coded cy-
cles are wrong, the instruction aborts and the de-
vice is reset to Read Array. It is not necessary to
program the array with 00h first as the P/E.C. will
automatically do this before erasing it to FFh.
Read operations after the sixth rising edge of W or
E output the Status Register bits. During the exe-
cution of the erase by the P/E.C., Data Polling bit
DQ7 returns ’0’, then ’1’ on completion. The Toggle
bits DQ2 and DQ6 toggle during erase operation
and stop when erase is completed. After comple-
tion the Status Register bit DQ5 returns ’1’ if there
has been an Erase Failure.


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 


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