SST49LF040 データシートの表示（PDF） - Silicon Storage Technology
部品番号
コンポーネント説明
メーカー
SST49LF040 Datasheet PDF : 48 Pages
| |||
TABLE 7: OPERATION MODES SELECTION (PP MODE)
Mode
Read
Program
Erase
RST#
VIH
VIH
VIH
OE#
VIL
VIH
VIH
WE#
VIH
VIL
VIL
Reset
VIL
X
X
Write Inhibit
VIH
VIL
X
X
X
VIH
Product Identification
VIH
VIL
VIH
1. X can be VIL or VIH, but no other value.
2. Device ID 51H for SST49LF040
4 Mbit LPC Flash
SST49LF040
Advance Information
DQ
DOUT
DIN
X1
High Z
High Z/DOUT
High Z/DOUT
Manufacturer’s ID (BFH)
Device ID2
Address
AIN
AIN
Sector or Block address,
XXH for Chip-Erase
X
X
X
See Table 8
T7.2 562
TABLE 8: SOFTWARE COMMAND SEQUENCE (ALL INTERFACES)
Command
Sequence
Byte-
Program
1st1
Cycle
Addr2 Data
YYYY 5555H AAH
2nd1
Cycle
Addr2 Data
YYYY 2AAAH 55H
3rd1
Cycle
Addr2 Data
YYYY 5555H A0H
4th1
Cycle
Addr2 Data
PA3
Data
5th1
Cycle
Addr2
Data
6th1
Cycle
Addr2 Data
Sector-
Erase
YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 80H YYYY 5555H AAH YYYY 2AAAH 55H
SAx4
30H
Block-Erase YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 80H YYYY 5555H AAH YYYY 2AAAH 55H
BAx5
50H
Chip-Erase6 YYYY 5555H
AAH
YYYY 2AAAH
55H YYYY 5555H 80H
YYYY 5555H AAH
YYYY 2AAAH
55H YYYY 5555H 10H
Software
ID Entry
YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H 90H
Read ID7
Software
ID Exit8
XXXX XXXXH F0H
Software
ID Exit8
YYYY 5555H AAH YYYY 2AAAH 55H YYYY 5555H F0H
T8.3 562
1. LPC mode uses consecutive Write cycles to complete a command sequence; PP mode uses consecutive bus cycles to complete a
command sequence.
2. YYYY = A[31:16]
In LPC mode, during SDP command sequence, YYYY must be within memory address range specified in Figures 4 and 5.
In PP mode, YYYY can be VIL or VIH.
3. PA = Program Byte address
4. SAx for Sector-Erase Address
5. BAx for Block-Erase Address
6. Chip-Erase is supported in PP mode only
7. SST Manufacturer’s ID = BFH, is read with A0 = 0.
With A18-A1 = 0; 49LF040 Device ID = 51H, is read with A0 = 1.
8. Both Software ID Exit operations are equivalent
©2001 Silicon Storage Technology, Inc.
16
S71213-00-000 11/01 562
Share Link: 