W9425G6JH-5 Winbond Electronics, W9425G6JH-5 Datasheet - Page 27

• Manufacturer Part Number: W9425G6JH-5
• Description: IC DDR-400 SDRAM 256MB 66TSSOPII
• Manufacturer: Winbond Electronics

Specifications of W9425G6JH-5

• Format - Memory: RAM
• Memory Type: DDR SDRAM
• Memory Size: 256M (16Mx16)
• Speed: 250MHz
• Interface: Parallel
• Voltage - Supply: 2.3 V ~ 2.7 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 66-TSOPII
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.7
Notes:
Input High Voltage (AC)
Input Low Voltage (AC)
Input Reference Voltage
Termination Voltage
Differential Clock Input Reference Voltage
Input Difference Voltage. CLK and CLK Inputs (AC)
Output Timing Measurement Reference Voltage
V
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10) Transition times are measured between V
(11) IF the result of nominal calculation with regard to t
SWING (MAX)
AC Test Conditions
Conditions outside the limits listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
All voltages are referenced to V
Peak to peak AC noise on V
V
V
The values of I
The values of I
These parameters depend on the cycle rate and these values are measured at a cycle rate with the minimum values
of t
V
equal to V
These parameters depend on the output loading. Specified values are obtained with the output open.
slope.
the nearest decimal place.
(i.e., t
OH
OH
TT
CK
is not applied directly to the device. V
= 1.95V, V
= 1.9V, V
DQSS
and t
SLEW = (V
REF
= 1.25 × t
RC
.
OL
T
and must track variations in the DC level of V
OH(DC)
OL(DC)
OL
= 0.4V
IH
= 0.35V
PARAMETER
min (AC) - V
CK
is based on V
V
is based on V
V
, t
DD
SS
CK
Q
= 5 nS, 1.25 × 5 nS = 6.25 nS is rounded up to 6.2 nS.)
REF
IL
max (AC)) /
SS
may not exceed ± 2% V
T
, V
DDQ
DDQ
SSQ.
Output
= 2.3V and V
= 2.3V and V
TT
IH min(AC)
T
is a system supply for signal termination resistors is expected to be set
V
V
V
IH
REF
IL
max (AC)
min (AC)
CK
and V
TT
- 27 -
TT
contains more than one decimal place, the result is rounded up to
= 1.11V.
= 1.19V.
REF(DC).
IL max(AC)
REF
Output
V(out)
.
.Transition (rise and fall) of input signals have a fixed
SYMBOL
V
V
V
ID (AC)
V
V
V
V
OTR
REF
TT
IH
IL
R
Publication Release Date: May 26, 2010
Timing Reference Load
V
V
0.5 x V
0.5 x V
0.5 x V
REF
REF
V
VALUE
x
W9425G6JH
1.5
(AC)
+ 0.31
- 0.31
DDQ
DDQ
DDQ
VTT
Revision A01
30pF
50 Ω
UNIT
V
V
V
V
V
V
V