English
Language : 

NT5DS32M8AT Datasheet, PDF (17/27 Pages) List of Unclassifed Manufacturers – 256Mb DDR333/300 SDRAM
◁
NT5DS64M4AT NT5DS64M4AW
NT5DS32M8AT NT5DS32M8AW
256Mb DDR333/300 SDRAM
Capacitance
Parameter
Input Capacitance: CK, CK
Delta Input Capacitance: CK, CK
Input Capacitance: All other input-only pins (except DM)
Delta Input Capacitance: All other input-only pins (except DM)
Input/Output Capacitance: DQ, DQS, DM
Delta Input/Output Capacitance: DQ, DQS, DM
Symbol
Min.
CI1
2.0
delta CI1
CI2
2.0
delta CI2
CIO
4.0
delta CIO
Max.
3.0
0.25
3.0
0.5
5.0
0.5
Units
pF
pF
pF
pF
pF
pF
Notes
1
1
1
1
1, 2
1
1. VDDQ = VDD = 2.5V ± 0.2V (minimum range to maximum range), f = 100MHz, TA = 25°C, VODC = VDDQ/2, VOPeak -Peak = 0.2V.
2. Although DM is an input-only pin, the input capacitance of this pin must model the input capacitance of the DQ and DQS pins. This is
required to match input propagation times of DQ, DQS and DM in the system.
DC Electrical Characteristics and Operating Conditions
(0°C ≤ TA ≤ 70°C; VDDQ = 2.5V ± 0.2V, VDD = + 2.5V ± 0.2V, see AC Characteristics)
Symbol
Parameter
VDD
Supply Voltage
VDDQ I/O Supply Voltage
VSS, VSSQ
Supply Voltage
I/O Supply Voltage
VREF
VTT
VIH(DC)
VIL(DC)
VIN(DC)
VID(DC)
VIRatio
II
IOZ
IOH
IOL
I/O Reference Voltage
I/O Termination Voltage (System)
Input High (Logic1) Voltage
Input Low (Logic0) Voltage
Input Voltage Level, CK and CK Inputs
Input Differential Voltage, CK and CK Inputs
V-I Matching Pullup Current to Pulldown Current Ratio
Input Leakage Current
Any input 0V ≤ VIN ≤ VDD; (All other pins not under test = 0V)
Output Leakage Current
(DQs are disabled; 0V ≤ Vout ≤ VDDQ
Output Current: Nominal Strength Driver
High current (VOUT= VDDQ -0.373V, min VREF, min VTT)
Low current (VOUT= 0.373V, max VREF, max VTT)
Min
2.3
2.3
0
0.49 x VDDQ
VREF − 0.04
VREF + 0.15
− 0.3
− 0.3
0.30
0.71
−5
Max
2.7
2.7
0
0.51 x VDDQ
VREF + 0.04
VDDQ + 0.3
VREF − 0.15
VDDQ + 0.3
VDDQ + 0.6
1.4
5
−5
5
− 16.8
16.8
Units
V
V
V
V
V
V
V
V
V
µA
µA
mA
Notes
1
1
1, 2
1, 3
1
1
1
1, 4
5
1
1
1
1. Inputs are not recognized as valid until VREF stabilizes.
2. VREF is expected to be equal to 0.5 VDDQ 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 device. VTT is a system supply for signal termination resistors, is expected to be set equal to VREF, and
must track variations in tHalf-he DC level of VREF.
4. VID is the magnitude of the difference between the input level on CK and the input level on CK.
5. The ratio of the pullup current to the pulldown current is specified for the same temperature and voltage, over the entire tempera-ture and
voltage range, for device drain to source voltages for 0.25 volts to 1.0 volts. For a given output, it represents the maximum difference
between pullup and pulldown drivers due to process variation.
Preliminary
10/01
17
© NANYA TECHNOLOGY CORP. All rights reserved.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
 ▷