參數(shù)資料
型號: W963B6BBN80I
廠商: WINBOND ELECTRONICS CORP
元件分類: SRAM
英文描述: 512K X 16 PSEUDO STATIC RAM, 75 ns, PBGA48
封裝: 6 X 8 MM, 0.75 MM PITCH, TFBGA-48
文件頁數(shù): 26/29頁
文件大?。?/td> 948K
代理商: W963B6BBN80I
W963B6BBN
7. FUNCTION TRUTH TABLE
MODE
NOTE
CE2
CE1
WE
OE
LB
UB
A0-18
DQ1-8
DQ9-16
IDD
DATA
RETENTION
Standby
(Deselect)
H
X
High-Z
IDDS
Yes
Output
Disable
*1
H
X
*5
High-Z
No Read
H
Valid
High-Z
Read
*2
H
L
*4
Valid
Output
Valid
Output
Valid
Write (Upper Byte)
H
L
Valid
Invalid
Input
Valid
Write (Lower Byte)
L
H
Valid
Input
Valid
Invalid
Write (Word)
H
L
H
L
Valid
Input
Valid
Input
Valid
IDDA
Yes
Power Down
*3
L
X
High-Z
IDDP
No/Yes
Notes: L = VIL, H = VIH, X can be either VIL or VIH, High-Z = High impedance, KEY = Key Address.
*1: Output Disable mode should not be kept longer than 1
S.
*2: Byte control at Read mode is not supported.
*3: Power Down mode can be entered from Standby state and all DQ pins are in High-Z state. IDDP current and data
retention depend on the selection of Power Down Program.
*4: Either or both
LB and
UB must be Low for Read operation.
*5: Can be either VIL or VIH but must be valid before Read or Write.
- 6 -
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