SST29EE020-150-4C-U2 SST [Silicon Storage Technology, Inc], SST29EE020-150-4C-U2 Datasheet - Page 6

• Manufacturer Part Number: SST29EE020-150-4C-U2
• Description: 2 Mbit (256K x8) Page-Mode EEPROM
• Manufacturer: SST [Silicon Storage Technology, Inc]

TABLE 3: O
TABLE 4: S
Note: This product supports both the JEDEC standard three-byte command code sequence and SST’s original six-byte command code
©2001 Silicon Storage Technology, Inc.
Mode
Read
Page-Write
Standby
Write Inhibit
Software Chip-Erase
Product Identification
Software Mode
SDP Enable Mode
SDP Disable Mode
Command
Sequence
Software
Data Protect Enable
& Page-Write
Software
Data Protect Disable
Software Chip-Erase
Software ID Entry
Software ID Exit
Alternate
Software ID Entry
1. X can be V
2. Device ID = 10H for SST29EE020 and 12H for SST29LE/VE020
1. Address format A
2. Page-Write consists of loading up to 128 Bytes (A
3. The software Chip-Erase function is not supported by the industrial temperature part.
4. The device does not remain in Software Product ID Mode if powered down.
5. With A
6. Alternate six-byte Software Product ID Command Code
Please contact SST if you require this function for an industrial temperature part.
sequence. For new designs, SST recommends that the three-byte command code sequence be used.
14
-A
OFTWARE
1
PERATION
IL
=0;
or V
4,5
6
IH
14
3
, but no other value
SST Manufacturer’s ID= BFH, is read with A
SST29EE020 Device ID = 10H, is read with A
SST29LE/VE020 Device ID = 12H, is read with A
-A
5555H
5555H
5555H
5555H
5555H
5555H
Addr
0
Write Cycle
C
(Hex), Address A
M
1st Bus
OMMAND
ODES
1
CE#
V
V
V
V
V
V
V
X
X
IH
IL
IL
IL
IL
IL
IL
Data
AAH
AAH
AAH
AAH
AAH
AAH
S
ELECTION
OE#
V
V
V
V
V
V
V
S
X
X
IH
IH
IH
IH
IH
IL
IL
EQUENCE
1
2AAAH
2AAAH
2AAAH
2AAAH
2AAAH
2AAAH
Addr
15
Write Cycle
2nd Bus
can be V
WE#
V
V
V
V
V
V
V
X
X
1
IH
IH
IL
IL
IL
IL
IL
6
-A
Data
55H
55H
55H
55H
55H
55H
DQ
D
D
High Z
High Z/ D
High Z/ D
D
Manufacturer’s ID (BFH)
Device ID
IL
0
)
OUT
IN
IN
or V
IH
5555H
5555H
5555H
5555H
5555H
5555H
Addr
, but no other value.
Write Cycle
0
SST29EE020 / SST29LE020 / SST29VE020
3rd Bus
OUT
OUT
2
6
= 0,
0
= 1
1
0
= 1
Data
A0H
F0H
80H
80H
90H
80H
5555H
5555H
5555H
Addr
Addr
Write Cycle
4th Bus
2
1
2 Mbit Page-Mode EEPROM
Data
Data
AAH
AAH
AAH
Address
A
A
X
X
X
A
See Table 4
See Table 4
See Table 4
IN
IN
IN,
2AAAH
2AAAH
2AAAH
Addr
Write Cycle
See Table 4
5th Bus
1
Data
55H
55H
55H
S71062-06-000 6/01
5555H
5555H
5555H
Addr
Write Cycle
Data Sheet
6th Bus
1
T3.3 307
T4.2 307
Data
20H
10H
60H
307