MT18VDDF12872G-40B Micron, MT18VDDF12872G-40B Datasheet - Page 22

• Manufacturer Part Number: MT18VDDF12872G-40B
• Description: 1GB DDR SDRAM RDIMM
• Manufacturer: Micron

Table 15: PLL Clock Driver Timing Requirements and Switching Characteristics
Note: 1
NOTE:
pdf: 09005aef80f6b913, source: 09005aef80f6b41c
DDAF18C64_128x72G.fm - Rev. C 9/04 EN
PARAMETER
Operating Clock Frequency
Input Duty Cycle
Stabilization Time
Cycle to Cycle Jitter
Static Phase Offset
Output Clock Skew
Period Jitter
Half-Period Jitter
Input Clock Slew Rate
Output Clock Slew Rate
1. The timing and switching specifications for the PLL listed above are critical for proper operation of DDR SDRAM Regis-
2. The PLL must be able to handle spread spectrum induced skew.
3. Operating clock frequency indicates a range over which the PLL must be able to lock, but in which it is not required to
4. Stabilization time is the time required for the integrated PLL circuit to obtain phase lock of its feedback signal to its ref-
5. Static Phase Offset does not include Jitter.
6. Period Jitter and Half-Period Jitter specifications are separate specifications that must be met independently of each
7. The Output Slew Rate is determined from the IBIS model:
tered DIMMs. These are meant to be a subset of the parameters for the specific device used on the module. Detailed
information for this PLL is available in JEDEC Standard JESD82.
meet the other timing parameters. (Used for low speed system debug.)
erence signal after power up.
other.
SYMBOL
t
t
t
JIT
t
STAB
JIT
t
t
t
JIT
f
t
SK
t
LS
DC
CK
LS
HPER
PER
CC
O
O
I
MIN
-100
-75
-50
-75
1.0
1.0
60
40
-
-
V
22
0°C
DD
512MB, 1GB (x72, ECC, SR) PC3200
NOMINAL
CDCV857
= +2.6V ±0.1V
GND
T
0
V
-
-
-
-
-
-
-
-
-
DD
A
Micron Technology, Inc., reserves the right to change products or specifications without notice.
184-PIN DDR SDRAM RDIMM
+70°C
MAX
V
V
220
100
100
100
CK
CK
60
75
50
75
4
2
R=60
R=60
V
DD
/2
©2004 Micron Technology, Inc. All rights reserved.
UNITS
MHz
V/ns
V/ns
ms
%
ps
ps
ps
ps
ps
NOTES
2, 3
4
5
6
6
7