W9425G6EH-5 Winbond Electronics, W9425G6EH-5 Datasheet - Page 32
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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
10.6 Table 6: Output Slew Rate Matching Ratio Characteristics
10.7 Table 7: AC Overshoot/Undershoot Specification for Address and Control Pins
must be less than or equal to Max. area in Figure 3
must be less than or equal to Max. area in Figure 3
Output Slew Rate Matching Ratio
The area between the undershoot signal and GND
SLEW RATE CHARACTERISTIC
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
(Pullup to Pulldown)
5
4
3
2
1
0
PARAMETER
Figure 3: Address and Control AC Overshoot and Undershoot Definition
0 0.5 0.68751.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.06.3125 6.5 7.0
PARAMETER
Max. amplitude = 1.5V
Max. area
VDD
Overshoot
MIN.
0.67
DDR500
MAX.
1.5
- 32 -
Time (nS)
MIN.
0.67
3.0 V-nS
3.0 V-nS
DDR500
DDR400
1.5 V
1.5 V
MAX.
Publication Release Date:Dec. 03, 2008
1.5
Max. amplitude = 1.5V
SPECIFICATION
3.0 V-nS
3.0 V-nS
DDR400
MIN.
0.67
Undershoot
1.5 V
1.5 V
DDR333
W9425G6EH
GND
MAX.
1.5
3.6 V-nS
3.6 V-nS
DDR333
Revision A08
1.5 V
1.5 V
NOTES
e, m