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SST49LF004B-33-4C-WHE 데이터시트(PDF) 10 Page - Silicon Storage Technology, Inc

부품명 SST49LF004B-33-4C-WHE
상세설명  4 Mbit Firmware Hub
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제조업체  SST [Silicon Storage Technology, Inc]
홈페이지  http://www.sst.com/
Logo SST - Silicon Storage Technology, Inc

SST49LF004B-33-4C-WHE 데이터시트(HTML) 10 Page - Silicon Storage Technology, Inc

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10
Preliminary Specifications
4 Mbit Firmware Hub
SST49LF004B
©2006 Silicon Storage Technology, Inc.
S71307-02-000
2/06
DEVICE MEMORY MAP
FIGURE 3: DEVICE MEMORY MAP
DESIGN CONSIDERATIONS
SST recommends a high frequency 0.1 µF ceramic capac-
itor to be placed as close as possible between VDD and
VSS less than 1 cm away from the VDD pin of the device.
Additionally, a low frequency 4.7 µF electrolytic capacitor
from VDD to VSS should be placed within 1 cm of the VDD
pin. If a socket is used for programming purposes, an addi-
tional 1-10 µF should be added next to each socket.
The RST# and INIT# pins must remain stable at VIH for the
entire duration of an Erase or Program operation. WP#
must remain stable at VIH for the entire duration of the
Erase and Program operations for non-Boot Block sectors.
To write data to the top Boot Block sectors, the TBL# pin
must also remain stable at VIH for the entire duration of the
Erase and Program operations.
PRODUCT IDENTIFICATION
The Product Identification mode identifies the device as the
SST49LF004B and manufacturer as SST.
7FFFFH
70000H
6FFFFH
60000H
5FFFFH
50000H
4FFFFH
40000H
3FFFFH
30000H
2FFFFH
20000H
1FFFFH
10000H
0F000H
02000H
01000H
00000H
Boot Block
4 KByte Sector 1
4 KByte Sector 2
4 KByte Sector 0
Block 7
Block 6
Block 5
Block 4
Block 3
Block 2
Block 1
Block 0
1307 F02.0
WP#
Block 0-6
TBL#
(64 KByte)
TABLE
2: PRODUCT IDENTIFICATION
Address
Data
PP Mode
LPC Mode1
1. Address shown in this column is for boot device only.
Address locations should appear elsewhere in the 4
GByte system memory map depending on ID strapping
values on ID[3:0] pins when multiple LPC memory
devices are used in a system.
Manufacturer’s ID
0000H
FFBC 0000H
BFH
Device ID2
2. The device ID for SST49LF004B is the same as
SST49LF004A.
SST49LF004B
0001H
FFBC 0001H
60H
T2.0 1307


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