W9425G6EH-5 Winbond Electronics, W9425G6EH-5 Datasheet - Page 33
![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
10.8 Table 8: Overshoot/Undershoot Specification for Data, Strobe, and Mask Pins
must be less than or equal to Max. area in Figure 4
must be less than or equal to Max. area in Figure 4
The area between the undershoot signal and GND
Maximum peak amplitude allowed for undershoot
The area between the overshoot signal and VDD
Maximum peak amplitude allowed for overshoot
-1
-2
-3
-4
-5
5
4
3
2
1
0
0
Figure 4: DQ/DM/DQS AC Overshoot and Undershoot Definition
0.5 1.0 1.42 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 5.68 6.0 6.5 7.0
PARAMETER
Max. amplitude = 1.2V
Max. area
VDD
Overshoot
- 33 -
Time (nS)
1.44 V-nS
1.44 V-nS
DDR500
1.2 V
1.2 V
Publication Release Date:Dec. 03, 2008
SPECIFICATION
Max. amplitude = 1.2V
1.44 V-nS
1.44 V-nS
DDR400
1.2 V
1.2 V
Undershoot
W9425G6EH
GND
2.25 V-nS
2.25 V-nS
DDR333
Revision A08
1.2 V
1.2 V