W9425G6EH-5 Winbond Electronics, W9425G6EH-5 Datasheet - Page 31
![IC DDR-400 SDRAM 256MB 66TSSOPII](/photos/28/21/282152/w9425g6eh-5_sml.jpg)
W9425G6EH-5
Manufacturer Part Number
W9425G6EH-5
Description
IC DDR-400 SDRAM 256MB 66TSSOPII
Manufacturer
Winbond Electronics
Datasheet
1.W9425G6EH-5.pdf
(54 pages)
Specifications of W9425G6EH-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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W9425G6EH-5
Manufacturer:
WINBOND
Quantity:
1 728
Part Number:
W9425G6EH-5
Manufacturer:
WINBOND/华邦
Quantity:
20 000
10. SYSTEM CHARACTERISTICS FOR DDR SDRAM
The following specification parameters are required in systems using DDR500, DDR400 & DDR333
devices to ensure proper system performance. These characteristics are for system simulation
purposes and are guaranteed by design.
10.1 Table 1: Input Slew Rate for DQ, DQS, and D M
10.2 Table 2: Input Setup & Hold Time Derating for Slew Rate
10.3 Table 3: Input/Output Setup & Hold Time Derating for Slew Rate
10.4 Table 4: Input/Output Setup & Hold Derating for Rise/Fall Delta Slew Rate
10.5 Table 5: Output Slew Rate Characteristics (X16 Devices only)
DQ/DM/DQS input slew rate
INPUT SLEW RATE
INPUT SLEW RATE
INPUT SLEW RATE
measured between V
V
AC CHARACTERISTICS
IL(DC)
Pulldown Slew Rate
CHARACTERISTIC
±0.25 nS/V
±0.0 nS/V
±0.5 nS/V
Pullup Slew Rate
0.5 V/nS
0.4 V/nS
0.3 V/nS
0.5 V/nS
0.4 V/nS
0.3 V/nS
PARAMETER
SLEW RATE
and V
IL(DC)
, V
IH(DC)
IH(DC)
,
+100
+150
+100
Δt
Δt
Δt
+50
+75
+50
DCSLEW
SYMBOL
0
0
0
RANGE (V/NS)
DS
DS
IS
TYPICAL
1.2 ~ 2.5
1.2 ~ 2.5
MIN. MAX.
0.5
DDR500
- 31 -
Δt
Δt
Δt
0
0
0
0
0
0
0
0
0
4.0
DH
DH
IH
MINIMUM
(V/NS)
0.7
0.7
MIN. MAX.
0.5
DDR400
Publication Release Date:Dec. 03, 2008
4.0
UNIT
UNIT
UNIT
pS
pS
pS
pS
pS
pS
pS
pS
pS
MAXIMUM
MIN.
0.5
(V/NS)
DDR333
5.0
5.0
W9425G6EH
MAX.
4.0
UNIT NOTES
V/nS
a, c, d, f, g, h
b, c, d, f, g, h
NOTES
NOTES
NOTES
Revision A08
NOTES
k
k
k
i
i
i
j
j
j
a, m