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参数资料
| 型号： | AT5FC512-20 |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 512K byte Flash Memory PCMCIA Card |
| 中文描述： | 512K X 8 FLASH 5V PROM CARD, 200 ns, XMA68 |
| 文件页数： | 7/15页 |
| 文件大小： | 313K |
| 代理商： | AT5FC512-20 |
Memory Card Program Routine
Byte Mode
Memory Card Program Routine
Word Mode
Common Memory Operations
X = Don’t Care, where Don’t Care is either V
IL
or V
IH
levels.
Pins
REG
CE
2
CE
1
OE
WE
A0
D8-D15
D0-D7
Read-Only
Read (x8)
(1)
V
IH
V
IH
V
IL
V
IL
V
IH
V
IL
High Z
Data Out-Even
Read (x8)
(2)
V
IH
V
IH
V
IL
V
IL
V
IH
V
IH
High Z
Data Out-Odd
Read (x8)
(3)
V
IH
V
IL
V
IH
V
IL
V
IH
X
Data Out-Odd
High Z
Read (x16)
(4)
V
IH
V
IL
V
IL
V
IL
V
IH
X
Data Out-Odd
Data Out-Even
Output Disable
V
IH
X
X
V
IH
V
IH
X
High Z
High Z
Standby
X
V
IH
V
IH
X
X
X
High Z
High Z
Write-Only
Write (x8)
(1)
V
IH
V
IH
V
IL
V
IH
V
IL
V
IL
High Z
Data In-Even
Write (x8)
(2)
V
IH
V
IH
V
IL
V
IH
V
IL
V
IH
High Z
Data In-Odd
Write (x8)
(3)
V
IH
V
IL
V
IH
V
IH
V
IL
X
Data In-Odd
High Z
Write (x16)
(4)
V
IH
V
IL
V
IL
V
IH
V
IL
X
Data In-Odd
Data In-Even
Output Disable
V
IH
X
X
V
IH
V
IL
X
High Z
High Z
Notes:
1. Byte access - Even. In this x8 mode, D0-D7 contain the
"even" byte (low byte) of the x16 word. D8-D15 are inactive.
2. Byte access - Odd. In this x8 mode, D0-D7 contain the "odd"
byte (high byte) of the x16 word. This is accomplished inter-
nal to the card by transposing D8-D15 to D0-D7. D8-D15
are inactive.
3. Odd byte only access. In this x8 mode, D8-D15 contain the
"odd" byte (high byte) of the x16 word. D0-D7 are inactive.
A0 = X.
4. Word access. In this mode D0-D7 contain the "even" byte
while D8-D15 contain the "odd" byte. A0 = X
AT5FC512
7
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