參數(shù)資料
型號: X28HC256JZ-12
廠商: INTERSIL CORP
元件分類: DRAM
英文描述: 5 Volt, Byte Alterable EEPROM
中文描述: 32K X 8 EEPROM 5V, 120 ns, PQCC32
封裝: ROHS COMPLIANT, PLASTIC, MS-016AE, LCC-32
文件頁數(shù): 6/15頁
文件大?。?/td> 294K
代理商: X28HC256JZ-12
6
FN8108.1
May 17, 2006
DATA POLLING I/O
7
Figure 2. DATA Polling Bus Sequence
Figure 3. DATA Polling Software Flow
DATA Polling can effectively halve the time for writing
to the X28HC256. The timing diagram in Figure 2 illus-
trates the sequence of events on the bus. The soft-
ware flow diagram in Figure 3 illustrates one method
of implementing the routine.
CE
OE
WE
I/O
7
X28HC256
Ready
Last
Write
HIGH Z
V
OL
V
IH
A
0
–A
14
An
An
An
An
An
An
V
OH
An
Write Data
Save Last Data
and Address
Read Last
Address
IO
7
Compare
X28HC256
Ready
No
Yes
Writes
Complete
No
Yes
X28HC256
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