W3HG64M72EER-AD7 Datasheet, PDF (4/14 Pages) White Electronic Designs Corporation – 512MB - 64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM

White Electronic Designs
W3HG64M72EER-AD7
ADVANCED
DC OPERATING CONDITIONS
All voltages referenced to VSS
Parameter
Supply voltage
I/O Supply voltage
VCCL Supply voltage
I/O Reference voltage
I/O Termination voltage
Symbol
Min
Typical
Max
Unit
VCC
1 .7
1 .8
1 .9
V
VCCQ
1 .7
1 .8
1 .9
V
VCCL
1 .7
1 .8
1 .9
V
VREF
0.49 x VCCQ
0.50 x VCCQ
0.51 x VCCQ
V
VTT
VREF-0.04
VREF
VREF + 0.04
V
Notes
1
4
4
2
3
Notes:
1. VCC and VCCQ must track each other. VCCQ must be less than or equal to VCC.
2. VREF is expected to equal VCCQ/2 of the transmitting device and to track variations in the DC level of the same. Peak-to-peak noise on VREF may not excedd ±1 percent of the DC
value. Peak-to-peak AC noise on VREF may not exceed ±2 percent of VREF (DC). This measurement is to be taken at the nearest VREF bypass capacitor.
3. VTT is not applied directly to the device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF and must track variations in the DC level of VREF.
4. VCCQ tracks with VCC; VCCL track with VCC.
ABSOLUTE MAXIMUM DC RATINGS
Symbol Parameter
MIN
MAX
U nit
VCC
Voltage on VCC pin relative to VSS
-1.0
2.3
V
VCCQ
Voltage on VCCQ pin relative to VSS
-0.5
2.3
V
VCCL
Voltage on VCCL pin relative to VSS
-0.5
2.3
V
VIN, VOUT Voltage on any pin relative to VSS
-0.5
2.3
V
TSTG
Storage temperature
-55
100
°C
TCASE
Device operating temperature
0
85
°C
TOPR
Operating temperature (ambient)
0
55
°C
Command/Address,
RAS#, CAS#, WE#,
-5
5
µA
IL
Input leakage current; Any input 0V<VIN<VCC; VREF input
0V<VIN<0.95V; Other pins not under test = 0V
CS#, CKE
CK, CK#
-5
5
µA
DM
-5
5
µA
IOZ
Output leakage current;
0V<VOUT<VCCQ; DQs and ODT are disable
DQ, DQS, DQS#
-5
5
µA
IVREF
VREF leakage current; VREF = Valid VREF level
-18
18
µA
INPUT/OUTPUT CAPACITANCE
TA=25 0 C, f=1 00MHz
Parameter
Input capacitance (A0 - A1 3, BA0 - BA1 ,RAS#,CAS#,WE#)
Input capacitance ( CKE0), (ODT0)
Input capacitance (CS0#)
Input capacitance (CK0, CK0#)
Input capacitance (DM0 - DM8), (DQS0 - DQS8)
Input capacitance (DQ0 - DQ63), (CB0 - CB7)
Symbol
Min
Max
Unit
CIN1
pF
CIN2
pF
CIN3
pF
CIN4
pF
CIN5
pF
COUT1
pF
December 2005
Rev. 1
4
White Electronic Designs Corporation • [phone] • www.wedc.com