W3H32M72E-XSBX Datasheet, PDF (23/30 Pages) White Electronic Designs Corporation – 32M x 72 DDR2 SDRAM 208 PBGA Multi-Chip Package

White Electronic Designs
W3H32M72E-XSBX
PRELIMINARY*
DC OPERATING CONDITIONS
All voltages referenced to VSS
Parameter
Supply voltage
I/O 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
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
2
3
Notes:
1. VCC 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 exceed ±1 percent of the DC
value. Peak-to-peak AC noise on VREF may not exceed ±2 percent of VREF. 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 track with VCC.
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter
MIN
MAX
VCC
Voltage on VCC pin relative to VSS
-1.0
2.3
VCCQ
Voltage on VCCQ pin relative to VSS
-0.5
2.3
VIN, VOUT Voltage on any pin relative to VSS
-0.5
2.3
TSTG
Storage temperature
-55
125
TCASE
Device operating temperature
-55
125
Command/Address,
RAS#, CAS#, WE#,
-25
25
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#
-10
10
DM
-5
5
IOZ
Output leakage current;
0V<VOUT<VCCQ; DQs and ODT are disable
DQ, DQS, DQS#
-5
5
IVREF
VREF leakage current; VREF = Valid VREF level
-18
18
INPUT/OUTPUT CAPACITANCE
TA = 25°C, f = 1MHz, VCC = VCCQ = 1.8V
Parameter
Symbol
Max
Input capacitance (A0 - A12, BA0 - BA1 ,CS#, RAS#,CAS#,WE#, CKE, ODT)
CIN1
TBD
Input capacitance CK, CK#
CIN2
TBD
Input capacitance DM, DQS, DQS#
CIN3
TBD
Input capacitance DQ0 - 71
COUT
TBD
U nit
V
V
V
°C
°C
µA
µA
µA
µA
µA
Unit
pF
pF
pF
pF
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
February 2006
Rev. 2
23
White Electronic Designs Corporation • [phone] • www.wedc.com