參數(shù)資料
型號: SST49LF004B
廠商: Silicon Storage Technology, Inc.
英文描述: 4 Mbit LPC Firmware Flash
中文描述: 4兆位LPC固件閃存
文件頁數(shù): 26/39頁
文件大?。?/td> 460K
代理商: SST49LF004B
26
Data Sheet
4 Mbit LPC Firmware Flash
SST49LF004B
2003 Silicon Storage Technology, Inc.
S71232-02-000
12/03
AC Characteristics (LPC Mode)
TABLE 19: R
EAD
/W
RITE
C
YCLE
T
IMING
P
ARAMETERS
, V
DD
=3.0-3.6V (LPC M
ODE
)
Symbol
T
CYC
T
SU
T
DH
T
VAL1
T
BP
T
SE
T
BE
T
ON
T
OFF
Parameter
Clock Cycle Time
Data Set Up Time to Clock Rising
Clock Rising to Data Hold Time
Clock Rising to Data Valid
Byte Programming Time
Sector-Erase Time
Block-Erase Time
Clock Rising to Active (Float to Active Delay)
Clock Rising to Inactive (Active to Float Delay)
Min
30
7
0
2
Max
Units
ns
ns
ns
ns
μs
ms
ms
ns
ns
1. Minimum and maximum times have different loads. See PCI spec
11
20
25
25
2
28
T19.0 1232
TABLE 20: AC I
NPUT
/O
UTPUT
S
PECIFICATIONS
(LPC M
ODE
)
Symbol
I
OH
(AC)
Parameter
Switching Current High
Min
Max
Units
mA
mA
Conditions
0 < V
OUT
0.3V
DD
0.3V
DD
< V
OUT
< 0.9V
DD
0.7V
DD
< V
OUT
< V
DD
V
OUT
= 0.7V
DD
V
DD
>V
OUT
0.6V
DD
0.6V
DD
> V
OUT
> 0.1V
DD
0.18V
DD
> V
OUT
> 0
V
OUT
= 0.18V
DD
-3 < V
IN
-1
V
DD
+4 > V
IN
V
DD
+1
0.2V
DD
-0.6V
DD
load
0.6V
DD
-0.2V
DD
load
-12 V
DD
-17.1(V
DD
-V
OUT
)
Equation C
1
-32 V
DD
Equation D
1
1. See PCI spec.
(Test Point)
Switching Current Low
mA
mA
mA
I
OL
(AC)
16 V
DD
26.7 V
OUT
(Test Point)
Low Clamp Current
High Clamp Current
Output Rise Slew Rate
Output Fall Slew Rate
38 V
DD
mA
mA
mA
V/ns
V/ns
I
CL
I
CH
slewr
slewf
-25+(V
IN
+1)/0.015
25+(V
IN
-V
DD
-1)/0.015
1
1
4
4
T20.0 1232
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