M29W800B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
M29W800B
STMicroelectronics
'M29W800B' PDF : 33 Pages View PDF
M29W800T, M29W800B
Table 16A. Write AC Characteristics, Chip Enable Controlled
(TA = 0 to 70°C, –20 to 85°C or –40 to 85°C)
M29W800T / M29W800B
Symbol Alt
Parameter
-90
VCC = 3.0V to 3.6V
CL = 30pF
-100
VCC = 2.7V to 3.6V
CL = 30pF
Unit
Min
Max
Min
Max
tAVAV
tWC Address Valid to Next Address Valid
90
100
ns
tWLEL
tWS Write Enable Low to Chip Enable Low
0
0
ns
tELEH
tCP Chip Enable Low to Chip Enable High
45
50
ns
tDVEH
tDS Input Valid to Chip Enable High
45
50
ns
tEHDX
tDH Chip Enable High to Input Transition
0
0
ns
tEHWH
tWH Chip Enable High to Write Enable High
0
tEHEL
tCPH Chip Enable High to Chip Enable Low
30
0
ns
30
ns
tAVEL
tAS Address Valid to Chip Enable Low
0
0
ns
tELAX
tAH Chip Enable Low to Address Transition
45
50
ns
tGHEL
Output Enable High Chip Enable Low
0
0
ns
tVCHWL
tVCS VCC High to Write Enable Low
50
50
µs
tEHGL
tOEH Chip Enable High to Output Enable Low
0
tPHPHH (1,2) tVIDR RP Rise TIme to VID
500
0
ns
500
ns
tPLPX
tEHRL (1)
tPHWL (1)
tRP
tBUSY
tRSP
RP Pulse Width
Program Erase Valid to RB Delay
RP High to Write Enable Low
500
500
ns
90
90
ns
4
4
µs
Notes: 1. Sample only, not 100% tested.
2. This timing is for Temporary Block Unprotection operation.
Erase Suspend (ES) Instruction. The Block
Erase operation may be suspendedby this instruc-
tion which consists of writing the command B0h
without any specific address. No Coded cycles are
required. It permits reading of data from another
block and programming in another block while an
erase operation is in progress. Erase suspend is
accepted only during the Block Erase instruction
execution. Writing this command during Erase
timeout will, in addition to suspending the erase,
terminate the timeout. The Toggle bit DQ6 stops
toggling when the P/E.C. is suspended.The Toggle
bits will stop toggling between 0.1µs and 15µs after
the Erase Suspend (ES) command has been writ-
ten. The device will then automatically be set to
Read Memory Array mode. When erase is sus-
pended, a Read from blocks being erased will
output DQ2 toggling and DQ6 at ’1’. A Read from
a block not being erased returns valid data. During
suspension the memory will respond only to the
Erase Resume ER and the Program PG instruc-
tions. A Program operation can be initiated during
erase suspend in one of the blocks not being
erased. It will result in both DQ2 and DQ6 toggling
when the data is being programmed.A Read/Reset
command will definitively abort erasure and result
in invalid data in the blocks being erased.
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