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參數資料
| 型號： | W24257AS-20 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | SRAM |
| 英文描述： | 32K X 8 High Speed CMOS Static RAM |
| 中文描述： | 32K X 8 STANDARD SRAM, 20 ns, PDSO28 |
| 封裝： | 0.330 INCH, SOP-28 |
| 文件頁數： | 2/11頁 |
| 文件大小： | 226K |
| 代理商： | W24257AS-20 |
W24257A
- 2 -
DC CHARACTERISTICS
Absolute Maximum Ratings
PARAMETER
RATING
UNIT
Supply Voltage to V
SS
Potential
-0.5 to +7.0
V
Input/Output to V
SS
Potential
-0.5 to V
DD
+0.5
V
Allowable Power Dissipation
1.0
W
Storage Temperature
-65 to +150
°
C
°
C
Operating Temperature
0 to +70
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the
device.
TRUTH TABLE
CS
OE
WE
MODE
I/O1
I/O8
High Z
V
DD
CURRENT
H
X
X
Not Selected
I
SB
, I
SB1
L
H
H
Output Disable
High Z
I
DD
L
L
H
Read
Data Out
I
DD
L
X
L
Write
Data In
I
DD
OPERATING CHARACTERISTICS
(V
DD
= 5V
±
10%, V
SS
= 0V, T
A
= 0 to 70
°
C)
PARAMETER
Input Low Voltage
Input High Voltage
Input Leakage Current
Output Leakage
Current
SYM.
V
IL
V
IH
I
LI
I
LO
TEST CONDITIONS
-
-
V
IN
= V
SS
to V
DD
MIN.
-0.5
+2.2
-10
-10
TYP.
-
-
-
-
MAX.
+0.8
V
DD
+0.5
+10
+10
UNIT
V
V
μ
A
μ
A
V
I/O
= V
SS
to V
DD,
CS = V
IH
or OE = V
IH
or WE = V
IL
I
OL
= +8.0 mA
I
OH
= -4.0 mA
Output Low Voltage
Output High Voltage
V
OL
V
OH
I
DD
-
-
-
-
0.4
-
170
V
V
2.4
-
Operating Power
Supply Current
CS = V
IL,
I/O = 0 mA
Cycle = MIN
Duty = 100%
10
mA
12
15
20
-
-
160
150
140
30
mA
mA
mA
mA
-
-
-
-
Standby Power
Supply Current
I
SB
CS = V
IH
Cycle = MIN, Duty = 100%
CS
≥
V
DD
-0.2V
I
SB1
-
-
10
mA
Note: Typical characteristics are at V
DD
= 5V, T
A
= 25
°
C.
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PDF描述 |
|---|---|
| W24257 | 32K X 8 High Speed CMOS Static RAM |
| W24257A | 32K X 8 High Speed CMOS Static RAM |
| W24257AJ-12 | 32K X 8 High Speed CMOS Static RAM |
| W24257C | 32K×8bit CMOS Static RAM(32K×8位CMOS靜態RAM) |
| W24258C | 32K×8bit CMOS Static RAM(32K×8位CMOS靜態RAM) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W24257AS-35 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
| W24257K70LL | 制造商:WINBOND 功能描述:New |
| W24257Q-70L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
| W24257Q-70LE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
| W24257Q-70LL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x8 SRAM |
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