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參數(shù)資料
| 型號(hào)： | 27C020 |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | LED 591NM AMBER SMD PLCC4 |
| 中文描述： | 2兆位（256畝× 8位）的CMOS存儲(chǔ)器 |
| 文件頁(yè)數(shù)： | 3/9頁(yè) |
| 文件大?。?/td> | 170K |
| 代理商： | 27C020 |
AT27C020
3
Absolute Maximum Ratings*
Temperature Under Bias.......................-55°C to +125°C
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent
damage to the device. This is a stress rating
only and functional operation of the device at
these or any other conditions beyond those
indicated in the operational sections of this
specification is not implied. Exposure to abso-
lute maximum rating conditions for extended
periods may affect device reliability.
Note:
1.
Minimum voltage is -0.6V DC which may
undershoot to -2.0V for pulses of less than 20
ns. Maximum output pin voltage is V
CC
+
0.75V DC which may overshoot to +7.0V for
pulses of less than 20 ns.
Storage Temperature............................-65°C to +150°C
Voltage on Any Pin with
Respect to Ground...............................-2.0V to +7.0V
(1)
Voltage on A9 with
Respect to Ground ............................-2.0V to +14.0V
(1)
V
PP
Supply Voltage with
Respect to Ground.............................-2.0V to +14.0V
(1)
Operating Modes
Notes:
1. X can be V
IL
or V
IH.
2. Refer to Programming Characteristics.
3. V
H
= 12.0
±
0.5V.
4. Two identifier bytes may be selected. All Ai inputs are held low (V
IL
), except A9 which is set to V
H
and A0 which is toggled
low (V
IL
) to select the Manufacturer’s Identification byte and high (V
IH
) to select the Device Code byte.
Mode/Pin
CE
OE
PGM
Ai
V
PP
X
Outputs
Read
V
IL
X
V
IL
V
IH
X
X
(1)
Ai
D
OUT
High Z
Output Disable
X
X
X
Standby
V
IH
V
IL
V
IL
V
IH
X
X
X
High Z
Rapid Program
(2)
V
IH
V
IL
X
V
IL
V
IH
X
Ai
V
PP
V
PP
V
PP
D
IN
D
OUT
High Z
PGM Verify
Ai
PGM Inhibit
X
Product Identification
(4)
V
IL
V
IL
X
A9 = V
H
A0 = V
IH
or V
IL
A1 - A17 = V
IL
(3)
X
Identification Code
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