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參數(shù)資料
| 型號： | HYMR225618H |
| 英文描述： | 128Mx18|2.5V|40|x16|Direct RDRAM - 256MB RIMM |
| 中文描述： | 128Mx18 | 2.5V的| 40 | x16 |直接RDRAM的- 256MB的RIMM的 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 291K |
| 代理商： | HYMR225618H |
Rev. 0.95 / J uly.01
9
RIMM
Module
with 256/288Mb RDRAMs Preliminary
TM
Adjusted
T
PD
Specification
Parameter and Conditions
Symbol
Unit
Propagation delay variation of RSL signals with respect
to T
PD
for 4,6 and 8 device modules
ns
Propagation delay variation of RSL signals with respect
to T
PD
for 12 device modules
T
PD
ps
Absolute
Min/Max
40
-30
-40
Adjusted Min/Max
+/-[17+(18*N*
Z0)]
a
+/-[20+(18*N*
Z0)]
a
30
Propagation delay variation of RSL signals with respect
to T
PD
for 16 device modules
ps
50
-50
+/-[24+(18*N*
Z0)]
a
a. Where : N =Number of RDRAM devices installed on the RIMM module
Z0 = delta Z0% = (max Z0 - min Z0)/(min Z0)
(max Z0 and min Z0 are obtained from the loaded (high impedance) impedance coupons of all RSL layers on the modules)
AC Electrical Specifications
Parameter and Condition
Symbol
Unit
Module Impedance of RSL Signals
Z
L
Average clock delay form finger to finger of all RSL clock nets
(CTMN, CFM, and CFMN)
T
PD
ns
Propagation delay variation of RSL signals with respect to T
PDa,b
for 4, 6, 8, and 12 device modules
T
PD
ps
Max
30.8
21
Typ
28
Min
25.2
-
-21
See
Table
a
Propagation delay variation of SCK signal with respect to
an average clock delay
a
T
PD-CMOS
ps
250
-250
Attenuation Limit
V
/V
IN
α
%
See
Table
a
Forward crosstalk coefficient (300ps input rise time 20%-80%)
V
XF
/V
IN
%
See
Table
a
Backward crosstalk coefficient (300ps input rise time 20%-80%)
V
XB
/V
IN
%
See
Table
a
Propagation delay variation of RSL signals with respect to T
PDa,b
for 16 device modules
ps
24
-24
Module Impedance of SCK and CMD signals
Z
UL-CMOS
32.2
28
23.8
Propagation delay variation of CMD signal with respect to
SCK signal
T
PD-SCK
,CMD
ps
200
-200
a. Tpd or Average clock delay is defined as the average delay from finger of all RSL clock nets(CTM, CTMN, CFM, and CFMN)
b. If the RIMM module meets the following specification, then it is compliant to the specification. If the RIMM module does not meet
these specifications, then the specification can be adjusted by the “Adjusted
T
PD
Specification” table
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