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SST31LF041 데이터시트(PDF) 6 Page - Silicon Storage Technology, Inc

부품명 SST31LF041
상세설명  4 Mbit Flash 1 Mbit or 256 Kbit SRAM ComboMemory
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제조업체  SST [Silicon Storage Technology, Inc]
홈페이지  http://www.sst.com/
Logo SST - Silicon Storage Technology, Inc

SST31LF041 데이터시트(HTML) 6 Page - Silicon Storage Technology, Inc

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Data Sheet
4 Mbit Flash + 1 Mbit or 256 Kbit SRAM ComboMemory
SST31LF041 / SST31LF041A / SST31LF043 / SST31LF043A
©2001 Silicon Storage Technology, Inc.
S71107-03-000
5/01
349
FIGURE 2: PIN ASSIGNMENTS FOR 32-LEAD TSOP (8MM X 14MM) - SSTLF041A/043A
TABLE
2: PIN DESCRIPTION
Symbol
Pin Name
Functions
AMS1-A0
1. AMS = Most significant address
Address Inputs
To provide memory addresses. A18-A0 to provide flash address
A16-A0 to provide SRAM addresses for
SST32LF041/041A
A14-A0 to provide SRAM addresses for
SST31LF043/043A
During flash Sector-Erase,
A18-A12 address lines will select the sector.
DQ7-DQ0
Data Input/output
To output data during Read cycles and receive input data during Write cycles.
Data is internally latched during a flash Erase/Program cycle.
The outputs are in tri-state when OE# or BES# and BEF# are high.
BES#
SRAM Memory Bank Enable
To activate the SRAM memory bank when BES# is low.
Note: For SST31LF041A/043A, BES# and OE# share pin 32.
BEF#
Flash Memory Bank Enable
To activate the Flash memory bank when BEF# is low.
OE#
Output Enable
To gate the data output buffers.
Note: For SST31LF041A/043A, BES# and OE# share pin 32.
WE#
Write Enable
To control the Write operations.
VDD
Power Supply
3.0-3.6V Power Supply
VSS
Ground
T2.11 349
A11
A9
A8
A13
A14
A17
WE#
VDD
A18
A16
A15
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
OE#/BES#
A10
BEF#
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
A3
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
349 ILL F01A.1
Standard Pinout
Top View
Die Up


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