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參數(shù)資料
| 型號(hào)： | SST49LF080A |
| 廠商： | Silicon Storage Technology, Inc. |
| 英文描述： | 8 Mbit LPC Flash |
| 中文描述： | 8兆位LPC閃光 |
| 文件頁(yè)數(shù)： | 15/49頁(yè) |
| 文件大?。?/td> | 579K |
| 代理商： | SST49LF080A |
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Data Sheet
8 Mbit LPC Flash
SST49LF080A
15
2003 Silicon Storage Technology, Inc.
S71235-00-000
4/03
Multiple Device Selection
Multiple LPC flash devices may be strapped to increase
memory densities in a system. The four ID pins, ID[3:0],
allow up to 16 devices to be attached to the same bus by
using different ID strapping in a system. BIOS support, bus
loading, or the attaching bridge may limit this number. The
boot device must have an ID of 0 (determined by ID[3:0]);
subsequent devices use incremental numbering. Equal
density must be used with multiple devices.
When used as a boot device, ID[3:0] must be strapped as
0000; all subsequent devices should use a sequential up-
count strapping (i.e. 0001, 0010, 0011, etc.). With the hard-
ware strapping, ID information is included in every LPC
address memory cycle. The ID bits in the address field are
inverse of the hardware strapping. The address bits
[A
24
:A
23
, A
21
:A
20
] are used to select the device with proper
IDs. See Table 7 for IDs. The SST49LF080A will compare
these bits with ID[3:0]’s strapping values. If there is a mis-
match, the device will ignore the remainder of the cycle.
Registers
There are two registers available on the SST49LF080A,
the General Purpose Inputs Registers (GPI_REG) and the
JEDEC ID Registers. Since multiple LPC memory devices
may be used to increase memory densities, these registers
appear at its respective address location in the 4 GByte
system memory map. Unused register locations will read
as 00H. Any attempt to read registers during internal Write
operation will respond as “Write operation status detection”
(Data# Polling or Toggle Bit). Any attempt to write any reg-
isters during internal Write operation will be ignored. Table
9 lists GPI_REG and JEDEC ID address locations for
SST49LF080A with its respective device strapping.
TABLE
7: M
ULTIPLE
D
EVICE
S
ELECTION
C
ONFIGURATION
Device #
0 (Boot device)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Hardware
Strapping
ID[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Address Bits Decoding
A
24
A
23
1
1
1
1
1
1
1
1
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
A
21
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
A
20
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
T7.0 1235
TABLE
8: G
ENERAL
P
URPOSE
I
NPUTS
R
EGISTER
Bit
7:5
4
Function
Reserved
GPI[4]
Reads status of general
purpose input pin
GPI[3]
Reads status of general
purpose input pin
GPI[2]
Reads status of general
purpose input pin
GPI[1]
Reads status of general
purpose input pin
GPI[0]
Reads status of general
purpose input pin
Pin #
32-PLCC
-
30
32-TSOP
-
6
3
3
11
2
4
12
1
5
13
0
6
14
T8.0 1235
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SST49LF080A-33-4C-NH | 8 Mbit LPC Flash |
| SST49LF080A-33-4C-WH | 8 Mbit LPC Flash |
| SST502 | Current Regulator Diode(穩(wěn)壓電流為0.43mA的電流穩(wěn)壓二極管) |
| SST505 | Current Regulator Diode(穩(wěn)壓電流為1.00mA的電流穩(wěn)壓二極管) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SST49LF080A_06 | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:8 Mbit LPC Flash |
| SST49LF080A-33-4C-NH | 功能描述:閃存 1M X 8 33MHz RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| SST49LF080A-33-4C-NHE | 功能描述:閃存 1M X 8 33MHz RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| SST49LF080A-33-4C-NHE-T | 功能描述:閃存 8M (1Mx8) 33MHz 3.0-3.6V Commercial RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| SST49LF080A-33-4C-WH | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:8 Mbit LPC Flash |
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