256Mb, 512Mb, 1Gb, 2Gb: 3V Embedded Parallel NOR Flash
Program/Erase Characteristics
Program/Erase Characteristics
Table 33: Program/Erase Characteristics
Notes 1 and 2 apply to the entire table.
Buffer
Size
Parameter
Byte
Word
Min
Typ
0.8
Max
4
Unit
s
Notes
Block erase (128KB)
Erase suspend latency time
Block erase timeout
–
–
–
–
–
–
–
–
27
32
µs
–
–
–
50
–
–
µs
Byte program
Single-byte program
–
–
–
–
210
270
310
375
4.22
2.42
1.46
210
270
310
375
505
900
8.44
4.84
2.93
1.97
1.76
27
456
716
900
1140
11.2
7
µs
Byte write to buffer program
64
128
256
64
128
256
–
64
128
256
1
–
–
µs
–
–
µs
–
–
µs
Effective write to buffer
program per byte
–
–
µs
1
–
–
µs
1
–
–
4.45
456
716
900
1140
1690
3016
22.4
14.1
8.9
6.6
5.89
32
µs
Word program Single-word program
Word write to buffer program
–
–
–
µs
32
64
128
256
512
32
64
128
256
512
–
–
32
64
128
256
512
1
–
µs
–
–
µs
–
–
µs
–
–
µs
–
–
µs
Effective write to buffer
program per word
–
–
µs
–
1
–
µs
–
1
–
µs
–
1
–
µs
–
1
–
µs
Program suspend latency time
–
–
–
µs
Blank check
–
–
–
–
100,000
–
3.2
–
ms
cycles
µs
PROGRAM/ERASE cycles (per block)
Erase to suspend
–
–
–
–
–
–
–
–
500
–
3
1. Typical values measured at room temperature and nominal voltages.
2. Typical and maximum values are sampled, but not 100% tested.
Notes:
3. Erase to suspend is the typical time between an initial BLOCK ERASE or ERASE RESUME
command and a subsequent ERASE SUSPEND command. Violating the specification re-
peatedly during any particular block erase may cause erase failures.
PDF: 09005aef849b4b09
m29ew_256mb_2gb.pdf - Rev. B 8/12 EN
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71
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