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參數資料
| 型號： | W27C520 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 64K X 8 ELECTRICALLY ERASABLE EPROM |
| 中文描述： | 64KX8的電可擦除只讀存儲器 |
| 文件頁數： | 3/16頁 |
| 文件大小： | 239K |
| 代理商： | W27C520 |
Preliminary W27C520
Publication Release Date: October 2000
- 3 -
Revision A1
System Considerations
An EPROM's power switching characteristics require careful device decoupling. System designers are
interested in three supply current issues: standby current levels (I
SB
), active current levels (I
DD
), and
transient current peaks produced by the falling and rising edges of ALE Transient current magnitudes
depend on the device output's capacitive and inductive loading. Proper decoupling capacitor selection
will suppress transient voltage peaks. Each device should have a
0.1
μ
F ceramic capacitor connected between its V
DD
and GND. This high frequency, low inherent-
inductance capacitor should be placed as close as possible to the device. Additionally, for every eight
devices, a 4.7
μ
F electrolytic capacitor should be placed at the array's power supply connection
between V
DD
and GND. The bulk capacitor will overcome voltage slumps caused by PC board trace
inductances.
TABLE OF OPERATING MODES
(V
PP
= 13V, V
PE
= 13V, V
HH
= 12V, V
DP
= 6.5V, V
DE
= 6.5V, V
DD
= 3.3V or 5.0V, V
DI
= 5.0V, X = V
IH
or V
IL
)
MODE
PIN
ALE
OE/V
PP
V
IH
V
IL
V
IH
OTHER ADDRESS
V
DD
AD[7:0]
Address Latch Enable
Read
Output Disable
V
IH
V
IL
V
IL/
V
IH
V
IH
V
IH
V
IH
A
IN
A
IN
X
V
DD
V
DD
V
DD
A[7:0]
D
OUT
High Z
Standby
Program
Erase 1
V
IH
V
PP
V
PE
X
A
IN
V
DD
V
DP
V
DE
A[7:0]
D
IN
X
A8&A11 = V
IL
, A9 = V
PE
,
A10 = V
IH
, Others = X
First command:
Addr. = 5555 (hex)
Second command:
Addr. = 2AAA (hex)
A8 = V
IL
, A9 = V
HH
, Others = X
Erase 2
V
IH
V
PE
V
DE
AA(hex)
V
DE
10(hex)
Product Identifier-
manufacturer
Product Identifier-device
V
IL
V
IL
V
DI
DA(Hex)
V
IL
V
IL
A8 = V
IH
, A9 = V
HH
, Others = X
V
DI
1F(Hex)
相關PDF資料 |
PDF描述 |
|---|---|
| W27C520S-70 | 64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27C520S-90 | BOX 2.53X1.73X.65 W/4 BTNS ALMOND |
| W27E010 | 128K X 8 ELECTRICALLY ERASABLE EPROM |
| W27E010-12 | 128Kx8 EEPROM |
| W27E010-45 | 128Kx8 EEPROM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W27C520S-70 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27C520S-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27C520W-70 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27C520W-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27E01 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EPROM |
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