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參數資料
| 型號： | W27E520W-70 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 64K X 8 ELECTRICALLY ERASABLE EPROM |
| 中文描述： | 64K X 8 EEPROM 5V, 70 ns, PDSO20 |
| 封裝： | 0.173 INCH, TSSOP-20 |
| 文件頁數： | 3/16頁 |
| 文件大小： | 234K |
| 代理商： | W27E520W-70 |
W27E520
Publication Release Date: September 2000
- 3 -
Revision A2
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
= 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 |
|---|---|
| W27E520W-90 | 64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27E520 | 64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27E520S-70 | BOX 3.05X1.51X1.05 W/1 BTN ALMOND |
| W27E520S-90 | BOX 3.05X1.51X1.05 W/1 BTN BLK |
| W27L010 | 128K ⅴ 8 ELECTRICALLY ERASABLE EPROM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W27E520W-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 8 ELECTRICALLY ERASABLE EPROM |
| W27L01 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K X 8 ELECTRICALLY ERASABLE EPROM |
| W27L010 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K ⅴ 8 ELECTRICALLY ERASABLE EPROM |
| W27L010-12 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K ⅴ 8 ELECTRICALLY ERASABLE EPROM |
| W27L010-90 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:128K ⅴ 8 ELECTRICALLY ERASABLE EPROM |
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