參數(shù)資料
型號: PXA270
廠商: Intel Corp.
英文描述: Electrical, Mechanical, and Thermal Specification
中文描述: 電氣,機(jī)械和熱規(guī)格
文件頁數(shù): 88/126頁
文件大?。?/td> 1563K
代理商: PXA270
6-24
Electrical, Mechanical, and Thermal Specification
Intel PXA270 Processor
AC Timing Specifications
6.4.4.1.2
Synchronous Flash Read Parameters and Timing Diagrams
Table 6-17
lists the timing parameters used in
Figure 6-15
, and, for stacked flash packages,
Figure 6-16
.
Table 6-17. Synchronous Flash Read AC Specifications (Sheet 1 of 2)
Symbols
Parameters
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
Units
N
Divide by 1
2
Divide by 2
3
Divide by 4
4
tffCLK
SDCLK0 period
9.6
38.5
19.
2
76.9
38.5
154
ns
1
tffAS
MA<25:0> setup to
nSDCAS (as
nADV) asserted
1
1
1
2
1
4
CLK_MEM
tffCES
nCS setup to
nSDCAS (as
nADV) asserted
1
1
1
2
1
4
CLK_MEM
tffADV
nSDCAS (as
nADV) pulse width
1
1
3
3
7
7
CLK_MEM
tffOS
nSDCAS (as
nADV) deassertion
to nOE assertion
1
FCC – 1
(for
FCC<5)
FCC – 2
(for
FCC>=5)
13
2
(FCC – 1)
* 2
(for
FCC<5)
(FCC – 2)
* 2
(for
FCC>=5)
26
7
(FCC * 4)
– 7
(for
FCC<5)
(FCC – 2)
* 4
(for
FCC>=5)
52
CLK_MEM
5
tffCEH
nOE deassertion to
nCS deassertion
4
4
8
8
16
16
CLK_MEM
tffDS
CLK to data valid
2
FCC
15
2
FCC
15
2
FCC
15
CLK_MEM
5
VCC_MEM =
1.8V +20% / -5%
6
VCC_MEM =
2.5V +/- 10%
7
VCC_MEM =
3.3V +/- 10%
8
tffSDOS
MA<25:0>,
MD<31:0>,
DQM<3:0>,
nCS<3:0>,
nSDCAS (nADV),
nWE, nOE,
RDnWR output
setup time to
SDCLK<2:1> rise
TBD
TB
D
TBD
ns
tffSDOH
MA<25:0>,
MD<31:0>,
DQM<3:0>,
nCS<3:0>,
nSDCAS (nADV),
nWE, nOE,
RDnWR output
hold time from
SDCLK<2:1> rise
TBD
TB
D
TBD
ns
VCC_CORE = 0.85 V +/
– 10%, with 1.71 V<=
VCC_MEM <= 3.63 V
VCC_CORE = 1.1 V +/–
10%, with 1.71 V <=
VCC_MEM <= 3.63 V
VCC_CORE = 1.3 V +/–
10%, with 1.71 V <=
VCC_MEM <= 3.63 V
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