参数资料
型号: RTPXA270C0C312
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 312 MHz, RISC PROCESSOR, PBGA356
封装: 13 X 13 MM, 1 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, VFBGA-356
文件页数: 104/128页
文件大小: 1560K
代理商: RTPXA270C0C312
Electrical, Mechanical, and Thermal Specification
6-13
Intel PXA270 Processor
AC Timing Specifications
Table 6-15. SDRAM Interface AC Specifications (Sheet 1 of 2)
Symbols
Parameters
VCC_MEM =
1.8V +20% / –5%3
VCC_MEM =
2.5V +/- 10%4
VCC_MEM =
3.3V +/- 10%5
Units
Not
es
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
tsdCLK
SDCLK1, SDCLK2
period
9.6
76.9
9.6
76.9
9.6
76.9
ns
1,
2
tsdCMD
nSDCAS,
nSDRAS, nWE,
nSDCS assert time
1
—1
1
—1
1
—1
SDCLK —
tsdCAS
nSDCAS to
nSDCAS assert
time
2
——
2
——
2
——
SDCLK —
tsdRCD
nSDRAS to
nSDCAS assert
time
1
MDCNFG
[DTCx]
3
1
MDCNFG
[DTCx]
3
1
MDCNFG
[DTCx]
3
SDCLK
6
tsdRP
nSDRAS Pre
charge
2
MDCNFG
[DTCx]
3
2
MDCNFG
[DTCx]
3
2
MDCNFG
[DTCx]
3
SDCLK
6
tsdCL
nSDRAS to
nSDCAS delay
2
MDCNFG
[DTCx]
3
2
MDCNFG
[DTCx]
3
2
MDCNFG
[DTCx]
3
SDCLK
6
tsdRAS
nSDRAS active
time
3
MDCNFG
[DTCx]
7
3
MDCNFG
[DTCx]
7
3
MDCNFG
[DTCx]
7
SDCLK
6
tsdRC
nSDRAS cycle
time
4
MDCNFG
[DTCx]
11
4
MDCNFG
[DTCx]
11
4
MDCNFG
[DTCx]
11
SDCLK
6
tsdWR
write recovery time
(time from last data
in the
PRECHARGE)
2
—2
2
—2
2
—2
SDCLK —
tsdSDOS
MA<24:10>,
MD<31:0>,
DQM<3:0>,
nSDCS<3:0>,
nSDRAS,
nSDCAS, nWE,
nOE, SDCKE1,
RDnWR output
setup time to
SDCLK<2:1> rise
TBD
——
TBD
TBD
——
ns
tsdSDOH
MA<24:10>,
MD<31:0>,
DQM<3:0>,
nSDCS<3:0>,
nSDRAS,
nSDCAS, nWE,
nOE, SDCKE1,
RDnWR output
hold time from
SDCLK<2:1> rise
TBD
——
TBD
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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