BRIGHT
Microelectronics
Inc.
Preliminary BM29F040
AC CHARACTERISTICS - for CE Controlled Write Operation
SYMBOL
DESCRIPTION
-75
-90
-120 -150 UNITS
JEDEC
Standard
tWC
tAVAV
tWLEL
Write Cycle Time (Note 4)
70
0
90
0
120
0
150
0
nS
nS
tWS
WE Setup time
Address Setup time
Data Setup time
Data Hold time
tAVEL
tDVEH
tEHDX
tEHWH
tAS
tDS
tDH
tWH
0
30
0
0
45
0
0
50
0
0
50
0
nS
nS
nS
nS
0
0
0
0
WE Hold time
tWLAX
tELEH
tAH
tCP
Address Hold time
45
35
45
45
50
50
50
50
nS
nS
Pulse Width
CE
CE
tEHEL
tCPH
20
20
20
25
nS
Pulse Width High
tOES
tOEH
Output Enable Setup time
0
0
0
0
0
0
0
0
nS
nS
nS
Output Enable Read (Note 4)
Hold time
Toggle and Data
Polling
10
10
10
10
tGHEL
tGHEL
Read Recover time before Write
Programming Operation
Erase Operation (1)
0
0
0
0
nS
uS
tWHWH1 tWHWH1
tWHWH2 tWHWH2
16
1.5
30
50
16
1.5
30
50
16
1.5
30
50
16
1.5
30
50
typ
sec
sec
max
tVCS
Vcc Setup time (Note 4)
Table 13
mS
Notes:
1. The Erase operation does not need programming time.
2. These timings are for Sector Protect/Unprotect operation.
3. This timing is only for sector Unprotect.
3. Not 100% tested.
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