Command interface
M29W800DT, M29W800DB
(1)
Table 5.
Commands, 8-bit mode, BYTE = V
IL
Bus write operations
3rd 4th
Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data
Command
1st
2nd
5th
6th
1
3
3
4
3
X
F0
AA
AA
AA
AA
Read/Reset
AAA
AAA
AAA
AAA
555
555
555
555
55
55
55
55
X
F0
90
A0
20
Auto Select
Program
AAA
AAA
AAA
PA
PD
Unlock Bypass
Unlock Bypass
Program
2
X
A0
PA
PD
Unlock Bypass Reset
Chip Erase
2
6
X
90
AA
AA
B0
30
98
X
00
55
55
AAA
555
555
AAA
AAA
80
80
AAA
AAA
AA
AA
555
555
55
55
AAA
BA
10
30
Block Erase
6+ AAA
Erase Suspend
Erase Resume
Read CFI Query
1
1
1
X
X
AA
1. X don’t care, PA program address, PD program data, BA any address in the block.
All values in the table are in hexadecimal.
The command interface only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A18, DQ8-DQ14 and DQ15
are don’t care. DQ15A–1 is A–1 when BYTE is VIL or DQ15 when BYTE is VIH
.
Table 6.
Program, erase times and program, erase endurance cycles
Parameter
Min.
Typ. (1)(2)
Max.(2)
Unit
Chip erase
12
0.8
15
10
12
6
60(3)
6(4)
s
s
Block erase (64 Kbytes)
Erase suspend latency time
Program (byte or word)
25(3)
200(3)
60(3)
30(4)
µs
µs
Chip program (byte by byte)
Chip program (word by word)
Program/erase cycles (per block)
Data retention
s
s
100,000
20
cycles
years
1. Typical values measured at room temperature and nominal voltages.
2. Sampled, but not 100% tested.
3. Maximum value measured at worst case conditions for both temperature and VCC after 100,000 program/erase cycles.
4. Maximum value measured at worst case conditions for both temperature and VCC
.
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NUMONYX [ NUMONYX B.V ]
