w9425g6jh Winbond Electronics Corp America, w9425g6jh Datasheet - Page 32
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w9425g6jh
Manufacturer Part Number
w9425g6jh
Description
4 M
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W9425G6JH.pdf
(52 pages)
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10.9 System Notes:
a. Pullup slew rate is characterized under the test conditions as shown in Figure 1.
b. Pulldown slew rate is measured under the test conditions shown in Figure 2.
c. Pullup slew rate is measured between (V
d. Evaluation conditions
Pulldown slew rate is measured between (V
Pullup and Pulldown slew rate conditions are to be met for any pattern of data, including all outputs
switching and only one output switching.
Example: For typical slew rate, DQ0 is switching
Typical:
Minimum:
Maximum:
For minimum slew rate, all DQ bits are switching worst case pattern
For maximum slew rate, only one DQ is switching from either high to low, or low to high
The remaining DQ bits remain the same as for previous state
25
70
0
o
C (T Ambient), V
o
o
C (T Ambient), V
C (T Ambient), V
Output
Output
Figure 1: Pullup slew rate test load
Figure 2: Pulldown slew rate test load
DDQ
DDQ
DDQ
= maximum, fast-fast process
= nominal, typical process
= minimum, slow-slow process
VSSQ
DDQ
VDDQ
DDQ
/2 - 320 mV ± 250 mV)
- 32 -
50 Ω
/2 + 320 mV ± 250 mV)
50 Ω
Test point
Test point
Publication Release Date: May 26, 2010
W9425G6JH
Revision A01