參數(shù)資料
型號(hào)： W2Z1M72SJ35BC
廠商： WHITE ELECTRONIC DESIGNS CORP
元件分類： SRAM
英文描述： 1M X 72 MULTI DEVICE SRAM MODULE, 3.5 ns, PBGA209
封裝： PLASTIC, BGA-209
文件頁(yè)數(shù)： 6/12頁(yè)
文件大?。?/td> 624K
代理商： W2Z1M72SJ35BC
3
White Electronic Designs Corporation (508) 366-5151
www.whiteedc.com
W2Z1M72SJ
TRUTH TABLES
SYNCHRONOUS TRUTH TABLE
WRITE TRUTH TABLE
WE
BWa
BWb
BWc
BWd
Operation
H
XXXX
Read
L
H
Write Byte a
L
H
L
H
Write Byte b
L
H
L
H
Write Byte c
L
H
L
Write Byte d
LLLLL
Write All Bytes
L
HHHH
Write Abort/NOP
NOTES:
1. X means Dont Care.
2. All inputs in this table must meet setup and hold time around the rising edge of
CLK (á).
CEx
ADV
WE
BWx
OE
CKE
CLK
Address Accessed
Operation
HL
XXX
L
á
N/A
Deselect
X
HXXX
L
á
N/A
Continue Deselect
LL
H
XLL
á
External Address
Begin Burst Read Cycle
XHX
X
L
á
Next Address
Continue Burst Read Cycle
LL
H
XH
L
á
External Address
NOP/Dummy Read
XHX
XH
L
á
Next Address
Dummy Read
LLLL
XL
á
External Address
Begin Burst Write Cycle
X
HXL
XL
á
Next Address
Continue Burst Write Cycle
LLL
H
XL
á
N/A
NOP/Write Abort
XHXHX
L
á
Next Address
Write Abort
XXXXX
H
á
Current Address
Ignore Clock
NOTES:
1. X means Dont Care.
2. The rising edge of clock is symbolized by (á)
3. A continue deselect cycle can only be entered if a deselect cycle is executed first.
4. WRITE = L means Write operation in WRITE TRUTH TABLE.
WRITE = H means Read operation in WRITE TRUTH TABLE.
5. Operation finally depends on status of asynchronous input pins (ZZ and OE).
6. CEx refers to the combination of CE1, CE2 and CE2.
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