- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄365727 > SST49LF004B-33-4C-NHE (SILICON STORAGE TECHNOLOGY INC) 4 Mbit LPC Firmware Flash PDF資料下載
參數(shù)資料
| 型號(hào)： | SST49LF004B-33-4C-NHE |
| 廠商： | SILICON STORAGE TECHNOLOGY INC |
| 元件分類： | PROM |
| 英文描述： | 4 Mbit LPC Firmware Flash |
| 中文描述： | 512K X 8 FLASH 3V PROM, 11 ns, PQCC32 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-016AE, LCC-32 |
| 文件頁數(shù)： | 8/39頁 |
| 文件大?。?/td> | 460K |
| 代理商： | SST49LF004B-33-4C-NHE |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當(dāng)前第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁
8
Data Sheet
4 Mbit LPC Firmware Flash
SST49LF004B
2003 Silicon Storage Technology, Inc.
S71232-02-000
12/03
PIN DESCRIPTIONS
TABLE
1: P
IN
D
ESCRIPTION
Symbol
LCLK
LAD[3:0]
Pin Name
Clock
Address and
Data
Frame
Type
1
I
I/O
1. I = Input, O = Output
Interface
PP
Functions
To provide a clock input to the control unit
To provide LPC bus information such as addresses and command
inputs/outputs data.
To indicate start of a data transfer operation; also used to abort an LPC
cycle in progress.
This pin determines which interface is operational. When held high, program-
mer mode is enabled and when held low, LPC mode is enabled. This pin must
be set at power-up or before returning from reset and must not change during
device operation. This pin must be held high (V
IH
) for PP mode and low (V
IL
)
for LPC mode. This pin is internally pulled-down with a resistor between 20-
100 K
.
To reset the operation of the device
This is the second reset pin for in-system use.
This pin functions identically to RST#.
These four pins are part of the mechanism that allows multiple parts to be
attached to the same bus. The strapping of these pins is used to identify the
component. The boot device must have ID[3:0]=0000, all subsequent devices
should use sequential count-up strapping. These pins are internally pulled-down
with a resistor between 20-100 K
.
These individual inputs can be used for additional board flexibility. The state of
these pins can be read through LPC registers. These inputs should be at their
desired state before the start of the LPC clock cycle during which the read is
attempted, and should remain in place until the end of the Read cycle.
Unused GPI pins must not be floated.
When low, prevents programming to the boot block sectors at the top of the
device memory. When TBL# is high it disables hardware write protection for
the top block sectors. This pin cannot be left unconnected.
When low, prevents programming to all but the highest addressable blocks.
When WP# is high it disables hardware write protection for these blocks. This
pin cannot be left unconnected.
Select for the Programming interface, this pin determines whether the
address pins are pointing to the row addresses, or to the column addresses.
Inputs for low-order addresses during Read and Write operations. Addresses
are internally latched during a Write cycle. For the programming interface,
these addresses are latched by R/C# and share the same pins as the high-
order address inputs.
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# is high.
To gate the data output buffers.
To control the Write operations.
These pins must be left unconnected.
To provide power supply (3.0-3.6V)
Circuit ground (0V reference)
Unconnected pins.
LPC
X
X
LFRAME#
I
X
MODE
Interface
Mode Select
I
X
X
RST#
INIT#
Reset
Initialize
I
I
X
X
X
ID[3:0]
Identification
Inputs
I
X
GPI[4:0]
General
Purpose Inputs
I
X
TBL#
Top Block Lock
I
X
WP#
Write Protect
I
X
R/C#
Row/Column
Select
Address
I
X
A
10
-A
0
I
X
DQ
7
-DQ
0
Data
I/O
X
OE#
WE#
RES
V
DD
V
SS
NC
Output Enable
Write Enable
Reserved
Power Supply
Ground
No Connection
I
I
X
X
X
X
X
PWR
PWR
X
X
N/A
N/A
T1.0 1232
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SST49LF040 | 4 Mbit LPC Flash |
| SST49LF020 | 2 Megabit LPC Flash |
| SST49LF020-33-4C-NH | 2 Megabit LPC Flash |
| SST49LF020-33-4C-WH | 2 Megabit LPC Flash |
| SST49LF040-33-4C-NH | 4 Mbit LPC Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SST49LF004B334CNHT | 制造商:SST 功能描述:NEW |
| SST49LF004B-33-4C-WHE | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:4 Mbit Firmware Hub |
| SST49LF004C | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:4 Mbit / 8 Mbit LPC Serial Flash |
| SST49LF004C-33-4C-NHE | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:4 Mbit / 8 Mbit LPC Serial Flash |
| SST49LF004C-33-4C-WHE | 制造商:SST 制造商全稱:Silicon Storage Technology, Inc 功能描述:4 Mbit / 8 Mbit LPC Serial Flash |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。