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| 型號： | V59C1G01808QBLF-19A |
| 廠商： | PROMOS TECHNOLOGIES INC |
| 元件分類： | DRAM |
| 英文描述： | DDR DRAM, PBGA68 |
| 封裝： | ROHS COMPLIANT, FBGA-68 |
| 文件頁數(shù)： | 74/80頁 |
| 文件大?。?/td> | 971K |
| 代理商： | V59C1G01808QBLF-19A |
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76
V59C1G01(408/808)QB Rev. 1.1 December 2008
ProMOS TECHNOLOGIES
V59C1G01(408/808)QB
Definiti
s:
- tCK(avg)
tCK(avg) is calculated as the average clock period across any consecutive 200 cycle window.
- tCH(avg) and tCL(avg)
tCH(avg) is defined as the average HIGH pulse width, as calculated across any consecutive 200 HIGH
pulses.
tCK avg
tCKj
j =
N
=
where
N =
N
22. Definitions:
- tCK(avg)
tCK(avg) is calculated as the average clock period across any consecutive 200 cycle window.
- tCH(avg) and tCL(avg)
tCH(avg) is defined as the average HIGH pulse width, as calculated across any consecutive 200 HIGH
pulses.
tCK avg
tCKj
j =
N
'
¤
§
Ne
=
where
N =
tCL(avg) is defined as the average LOW pulse width, as calculated across any consecutive 200 LOW pulses.
- tJIT(duty)
tJIT(duty) is defined as the cumulative set of tCH jitter and tCL jitter. tCH jitter is the largest deviation of
any single tCH from tCH(avg). tCL jitter is the largest deviation of any single tCL from tCL(avg).
tJIT(duty) = Min/max of {tJIT(CH), tJIT(CL)}
where,
tJIT(CH) = {tCHi- tCH(avg) where i=1 to 200}
tJIT(CL) = {tCLi- tCL(avg) where i=1 to 200}
- tJIT(per), tJIT(per,lck)
tJIT(per) is defined as the largest deviation of any single tCK from tCK(avg).
tCH avg
tCHj
j =
N
'
¤
§
NtCK avg
u
e
=
where
N =
tCL avg
tCLj
j =
N
'
¤
§
NtCK avg
u
e
=
where
N =
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