參數(shù)資料
型號(hào)： 49LF002
廠商： Silicon Storage Technology, Inc.
英文描述： 2 Mbit / 3 Mbit / 4 Mbit / 8 Mbit Firmware Hub
中文描述： 2兆位/ 3兆/ 4兆位/ 8兆固件集線器
文件頁數(shù)： 14/36頁
文件大?。?/td> 412K
代理商： 49LF002
Advance Information
2 Mbit / 3 Mbit / 4 Mbit / 8 Mbit Firmware Hub
SST49LF002A / SST49LF003A / SST49LF004A / SST49LF008A
21
2001 Silicon Storage Technology, Inc.
S71161-06-000
9/01
504
AC CHARACTERISTICS (FWH MODE)
TABLE 16: READ/WRITE CYCLE TIMING PARAMETERS (FWH MODE), VDD =3.0-3.6V
Symbol
Parameter
Min
Max
Units
TCYC
Clock Cycle Time
30
ns
TSU
Data Set Up Time to Clock Rising
7
ns
TDH
Clock Rising to Data Hold Time
0
ns
TVAL1
1. Minimum and maximum times have different loads. See PCI spec.
Clock Rising to Data Valid
2
11
ns
TBP
Byte Programming Time
20
s
TSE
Sector-Erase Time
25
ms
TBE
Block-Erase Time
25
ms
TSCE
Chip-Erase Time
100
ms
TON
Clock Rising to Active (Float to Active Delay)
2
ns
TOFF
Clock Rising to Inactive (Active to Float Delay)
28
ns
T16.3 504
TABLE 17: AC INPUT/OUTPUT SPECIFICATIONS (FWH MODE)
Symbol
Parameter
Min
Max
Units
Conditions
IOH(AC)
Switching Current High
-12 VDD
-17.1(VDD-VOUT)
Equation C1
1. See PCI spec.
mA
0 < VOUT ≤ 0.3VDD
0.3VDD < VOUT < 0.9VDD
0.7VDD < VOUT <VDD
(Test Point)
-32 VDD
mA
VOUT=0.7VDD
IOL(AC)
Switching Current Low
16 VDD
26.7 VOUT
Equation D1
mA
VDD >VOUT ≥0.6VDD
0.6VDD > VOUT > 0.1VDD
0.18VDD > VOUT > 0
(Test Point)
38 VDD
mA
VOUT=0.18VDD
ICL
Low Clamp Current
-25+(VIN+1)/0.015
mA
-3 < VIN ≤ -1
ICH
High Clamp Current
25+(VIN-VDD-1)/0.015
mA
VDD+4 > VIN ≤ VDD+1
slewr2
2. PCI specification output load is used.
Output Rise Slew Rate
1
4
V/ns
0.2VDD-0.6VDD load
slewf2
Output Fall Slew Rate
1
4
V/ns
0.6VDD-0.2VDD load
T17.3 504
TABLE 18: RESET TIMING PARAMETERS, VDD =3.0-3.6V (FWH MODE)
Symbol
Parameter
Min
Max
Units
TPRST
VDD stable to Reset Low
1
ms
TKRST
Clock Stable to Reset Low
100
s
TRSTP
RST# Pulse Width
100
ns
TRSTF
RST# Low to Output Float
48
ns
TRST1
1. There will be a latency of TRSTE if a reset procedure is performed during a Program or Erase operation.
RST# High to FWH4 Low
1
s
TRSTE
RST# Low to reset during Sector-/Block-Erase or Program
10
s
T18.5 504
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