NT256D64S88A2GM
256MB : 32M x 64
PC2100 / PC1600 Unbuffered DDR SO-DIMM
Preliminary 01 / 2002
8
© NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
DC Electrical Characteristics and Operating Conditions
( TA = 0 °C ~ 70 °C ; VDDQ = 2.5V ± 0.2V; VDD = 2.5V ± 0.2V, See AC Characteristics)
Symbol
Parameter
Min
Max
Units
Notes
VDD
Supply Voltage
2.3
2.7
V
1
VDDQ
I/O Supply Voltage
2.3
2.7
V
1
VSS , VSSQ
Supply Voltage, I/O Supply Voltage
0
0
V
VREF
/O Reference Voltage
0.49 x
VDDQ
0.51 x
VDDQ
V
1,2
VTT
I/O Termination Voltage (System)
VREF – 0.04
VREF + 0.04
V
1,3
VIH(DC)
Input High (Logic1) Voltage
VREF + 0.15
VDDQ + 0.3
V
1
VIL(DC)
Input Low (Logic0) Voltage
-0.3
VREF- 0.15
V
1
VIN(DC)
Input Voltage Level, CK and CK Inputs
-0.3
VDDQ + 0.3
V
1
VID(DC)
Input Differential Voltage, CK and CK Inputs
0.30
V DDQ + 0.6
V
1,4
II
Input Leakage Current
Any input 0V
≤ VIN ≤ VDD; (All other pins not under test = 0V)
-5
5
uA
1
IOZ
Output Leakage Current
(DQs are disabled; 0V
≤ Vout ≤ VDDQ
-5
5
uA
1
IOH
Output High Current
(VOUT = VDDQ -0.373V, min VREF , min VTT )
-16.8
-
mA
1
IOL
Output Low Current
(VOUT = 0.373, max VREF , max VTT )
16.8
-
mA
1
1. Inputs are not recognized as valid until V REF stabilizes.
2. VREF is expected to be equal to 0.5 V DDQ of the transmitting device, and to track variations in the DC level of the same. Peak-to-peak
noise on VREF may not exceed 2% of the DC value.
3. VTT is not applied directly to the DIMM. 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 V REF .
4. VID is the magnitude of the difference between the input level on CK and the input level on CK .
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