29F040-90NC Просмотр технического описания (PDF) - Winbond
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29F040-90NC Datasheet PDF : 29 Pages
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BRIGHT
Microelectronics
Inc.
Preliminary BM29F040
AC CHARACTERISTICS - for WE Controlled Write Operation
SYMBOL
DESCRIPTION
-75 -90
JEDEC Standard
tAVAV
tWC
Write Cycle Time
(4)
70 90
tELWL
tCS
CE Setup
0
0
tAVWL
tAS
Address Setup Time
0
0
tDVWH
tDS
Data Setup Time
30 45
tWLWH
tDH
Data Hold Time
0
0
tWHEH
tCH
CE Hold Time
0
0
tWLAX
tAH
Address Hold Time
45 45
tWLWH
tWP Write Pulase Width
35 45
tWHWL
tWPH WE Pulse Width High
20 20
tOES Output Enable Setup Time
0
0
tOEH Output Enable Read (4)
0
0
Hold Time
Toggle and Data 10 10
Polling
tGHWL
tGHWL Read Recover Time Before
Write
0
0
tWHWH1 tWHWH1 Programming Operation
16 16
tWHWH2 tWHWH2 Erase Operation (min.) (1) typ 1.5 1.5
max 30 30
tVCS Vcc Setup Time
(4) 50 50
tVLHT Voltage Transition Time
(2,4) 4
4
tWPP1 Write Pulse Width
(2) 100 100
tWPP2 Write Pulse Width
(2) 10 10
tCESP
CE Setup Time to
WE Active
(3,4) 4
4
tOESP
4
4
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.
4. Not 100% tested.
Table 12
-120
120
0
0
50
0
0
50
50
20
0
0
10
0
16
1.5
30
50
4
100
10
4
4
-150 UNITS
150
nS
0
nS
0
nS
55
nS
0
nS
0
nS
50
nS
50
nS
25
nS
0
nS
0
nS
10
nS
0
nS
16
uS
1.5
sec
30
sec
50
uS
4
uS
100
uS
10
mS
4
uS
4
uS
- 20 -
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