MT18HTF25672PZ Micron Semiconductor Products, MT18HTF25672PZ Datasheet - Page 12

• Manufacturer Part Number: MT18HTF25672PZ
• Description: Ddr2 Sdram Rdimm
• Manufacturer: Micron Semiconductor Products

Table 10: PLL Specifications
CU877 device or equivalent
Table 11: PLL Clock Driver Timing Requirements and Switching Characteristics
PDF: 09005aef83dadad1
htf18c256x72pz.pdf - Rev. A 3/10 EN
Parameter
DC high-level
input voltage
DC low-level
input voltage
Input voltage (limits)
DC high-level
input voltage
DC low-level
input voltage
Input differential-pair
cross voltage
Input differential
voltage
Input differential
voltage
Input current
Output disabled
current
Static supply current
Dynamic supply
Input capacitance
Parameter
Stabilization time
Input clock slew rate
SSC modulation frequency
SSC clock input frequency deviation
PLL loop bandwidth (–3dB from unity gain)
Note:
Symbol
V
V
I
I
DDLD
ID(DC)
ID(AC)
V
V
V
V
I
C
V
V
ODL
DD
I
IH
IN
IH
IX
IN
IL
IL
I
1. PLL timing and switching specifications are critical for proper operation of the DDR2
DIMM. This is a subset of parameters for the specific PLL used. Detailed PLL information
is available in JEDEC standard JESD82.
RESET#, CK, CK#
Each input
CK, CK#
CK, CK#
CK, CK#
CK, CK#
CK, CK#
CK, CK#
RESET#
RESET#
RESET#
Pins
N/A
2GB (x72, ECC, SR) 240-Pin DDR2 SDRAM RDIMM
RESET# = V
outputs open (not con-
CK, CK# = 270 MHz, all
Differential input
Differential input
Differential input
Differential input
Differential input
CK = CK# = LOW
nected to PCB)
Symbol
V
V
V
12
I
I
I
Condition
slr(i)
= V
= V
= V
LVCMOS
LVCMOS
or V
t
–
–
–
L
DD
DD
DD
SS
–
IL(DC)
; V
or V
or V
or V
I
Micron Technology, Inc. reserves the right to change products or specifications without notice.
= V
SS
SS
SS
IH(AC)
Register and PLL Specifications
Min
1.0
0.0
2.0
30
(V
–
0.65 × V
0.65 × V
DDQ
–250
Min
–10
100
0.3
/2) - 0.15
0.3
0.6
2
–
–
–
–
DD
DD
© 2010 Micron Technology, Inc. All rights reserved.
Max
–0.5
4.0
15
33
(V
–
0.35 × V
0.35 × V
V
DD
V
V
DD
DD
DD
Max
/2) - 0.15
250
500
300
10
3
–
–
–
+ 0.3
- 0.4
- 0.4
DD
DD
Units
MHz
V/ns
kHz
μs
%
Units
mA
µA
µA
µA
µA
pF
V
V
V
V
V
V
V
V