Y-Decoder
I/O Buffers and Data Latches
398 ILL B1.2
Address Buffers & Latches
X-Decoder
DQ7 - DQ0
Memory Address
OE#
CE#
WE#
SuperFlash
Memory
Control Logic
F
UNCTIONAL
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENTS FOR
32-
PIN
PDIP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32-pin
PDIP
Top View
398 ILL F02a.2
NC
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
SST39SF010A
NC
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
SST39SF020A
A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
SST39SF040
SST39SF010A
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VDD
WE#
NC
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
SST39SF020A
SST39SF040
VDD
WE#
A17
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VDD
WE#
A17
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
P
IN
D
ESCRIPTION
Symbol
Pin Name
Functions
A
MS
1
-A
0
Address Inputs
To provide memory addresses.
During Sector-Erase A
MS
-A
12
address lines will select the sector.
DQ
7
-DQ
0
Data Input/output
To output data during Read cycles and receive input data during Write cycles.
Data is internally latched during a Write cycle.
The outputs are in tri-state when OE# or CE# is high.
CE#
Chip Enable
To activate the device when CE# is low.
OE#
Output Enable
To gate the data output buffers.
WE#
Write Enable
To control the Write operations.
V
DD
Power Supply
To provide 5.0V supply (4.5-5.5V)
V
SS
Ground
NC
No Connection
Unconnected pins.
1. A
MS
= Most significant address
A
MS
= A
16
for SST39SF010A, A
17
for SST39SF020A, and A
18
for SST39SF040
MULTI-PURPOSE FLASH
SST39SF020A
OCTAL BUFFER / LINE DRIVER
74HCT244
8-5
8-5
Содержание LX700/21S/22S/25S
Страница 13: ...2 1 2 1 REPAIR INSTRUCTION ...
Страница 14: ...2 2 2 2 REPAIR INSTRUCTION ...
Страница 16: ...3 2 SERVICE POSITIONS Service position A Service position B 3 2 ...
Страница 17: ...4 1 BLOCK DIAGRAM 4 1 ...
Страница 18: ...WIRING DIAGRAM 4 2 4 2 ...
Страница 40: ...8 10 8 10 PCB LAYOUT COMPONENT VIEW 1 A B C D A B C D 2 3 4 1 2 3 4 ...
Страница 43: ...8 13 8 13 PCB LAYOUT COPPERSIDE VIEW 1 2 3 4 5 6 1 2 3 4 5 6 A B C D A B C D ...
Страница 45: ...9 1 9 1 EXPLODED DRAWING LX700 22S 25S ONLY LX700 33S 35S ONLY LX700 21S 39S ONLY ...