IBM0612404GT3B
IBM0612804GT3B
128Mb Double Data Rate Synchronous DRAM
Advance Rev 0.2
Capacitance
Parameter
Input Capacitance: CK, CK
Symbol
CI
Min.
2.5
Max.
3.5
Units
pF
Notes
1
1
1
Delta Input Capacitance: CK, CK
delta CI
0.25
3.0
pF
1
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
Output Capacitance: QFC
CI
2.0
4.0
2.0
pF
1
2
delta CI
0.5
pF
1
2
C
5.0
pF
1, 2
1
IO
delta C
0.5
pF
IO
CO
4.0
pF
1
1
1. V
= V = 2.5V 0.2V (minimum range to maximum range), f = 100MHz, T = 25°C, VO = V
, VO
= 0.2V.
Peak -Peak
DDQ
DD
A
DC
DDQ/2
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
Min
2.3
2.3
Max
2.7
Units
V
Notes
V
Supply Voltage
1
1
DD
V
I/O Supply Voltage
2.7
V
DDQ
Supply Voltage
I/O Supply Voltage
V
, V
0
0
V
SS
SSQ
V
I/O Reference Voltage
0.49 x V
0.51 x V
DDQ
V
V
V
V
V
V
V
1, 2
1, 3
1
REF
DDQ
V
I/O Termination Voltage (System)
Input High (Logic1) Voltage
V
V
− 0.04
+ 0.15
V
+ 0.04
REF
TT
REF
REF
V
V
+ 0.3
DDQ
IH(DC)
V
Input Low (Logic0) Voltage
− 0.3
V
− 0.15
REF
1
IL(DC)
IN(DC)
ID(DC)
IX(DC)
V
V
V
Input Voltage Level, CK and CK Inputs
Input Differential Voltage, CK and CK Inputs
Input Crossing Point Voltage, CK and CK Inputs
− 0.3
0.30
0.30
V
+ 0.3
+ 0.6
+ 0.6
1
DDQ
DDQ
DDQ
V
1, 4
1, 4
V
Input Leakage Current
I
− 5
− 5
5
µA
µA
1
1
I
Any input 0V ≤ V ≤ V ; (All other pins not under test = 0V)
IN
DD
Output Leakage Current
(DQs are disabled; 0V ≤ V ≤ V
I
5
OZ
out
DDQ
I
Output Current: Nominal Strength Driver
− 16.8
16.8
− 9.0
9.0
OH
High current (V
Low current (V
= V
-0.373V, min V
, min V
)
)
mA
mA
1
1
OUT
DDQ
REF
TT
I
= 0.373V, max V
, max V )
OL
OUT
REF
TT
I
Output Current: Weak Strength Driver
OHW
High current (V
Low current (V
= V
-0.763V, min V
, min V
REF
OUT
DDQ
TT
I
= 0.763V, max V
, max V )
OLW
OUT
REF
TT
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 the DC level of VREF
.
4. VID is the magnitude of the difference between the input level on CK and the input level on CK.
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
06K0566.F39350
5/00
Page 52 of 79
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