IBM0418A8CBLBB IBM0436A8CBLBB
IBM0418A4CBLBB IBM0436A4CBLBB
8Mb (256Kx36 & 512Kx18) and 4Mb (128Kx36 & 256Kx18)
Preliminary
Programmable Impedance Output Driver DC Electrical Characteristics
(TA = 0 to +85°C, VDD = 2.5V +/-5%)
Parameter
Output “High” Level Voltage
Output “Low” Level Voltage
Symbol
Min.
Max.
Units
V
Notes
1, 3
V
V
/ 2
V
OH
DDQ
DDQ
V
V
V / 2
DDQ
2, 3
V
OL
SS
RQ
VDDQ
------------------
2
⁄
-------- + 5
5
1. I
=
± 15% @ V = V
/ 2 For: 175Ω ≤ RQ ≤ 350Ω.
OH
OH
DDQ
DDQ
VDDQ
------------------
2
RQ
⁄
--------
2.
I
=
± 15% @ V = V
OL
/ 2 For: 175Ω ≤ RQ ≤ 350Ω.
OL
5
3. Parameter tested with RQ = 250Ω and V
= 1.8V.
DDQ
AC Test Conditions (TA = 0 to +85°C, VDD = 2.5V +/-5%, VDDQ = 1.8V)
Parameter
Symbol
Conditions
1.5
Units
V
Notes
V
Input High Level
IH
V
Input Low Level
0.3
V
IL
V
Input Reference Voltage
Differential Clocks Voltage
0.9
V
REF
V
0.75
0.9
V
DIF-CLK
CM-CLK
V
Clocks Common Mode Voltage
Input Rise Time
V
T
0.5
ns
R
T
Input Fall Time
0.5
0.9
ns
V
F
I/O Signals Reference Level (except CK Clocks)
Clocks Reference Level
Differential Cross Point
V
1, 2
Output Load Conditions
1. See the AC Test Loading figure below.
2. Parameter tested with RQ = 250Ω and V
= 1.8V.
DDQ
AC Test Loading
Ω
50
Ω
50
0.9V
5pF
0.9V
Ω
25
DQ
Ω
50
0.9V
Ω
50
5pF
cddrh2519.04
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Page 12 of 26
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