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參數(shù)資料
| 型號： | 29C020 |
| 廠商： | Atmel Corp. |
| 英文描述： | 2-Megabit 256K x 8 5-volt Only CMOS Flash Memory |
| 中文描述： | 2兆位256K × 8 5伏只有閃存的CMOS |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 257K |
| 代理商： | 29C020 |
Operating Modes
Mode
Read
Program
(2)
5V Chip Erase
Standby/Write Inhibit
Program Inhibit
Program Inhibit
Output Disable
Product Identification
CE
V
IL
V
IL
V
IL
V
IH
X
X
X
OE
V
IL
V
IH
V
IH
X
(1)
X
V
IL
V
IH
WE
V
IH
V
IL
V
IL
X
V
IH
X
X
Ai
Ai
Ai
Ai
X
I/O
D
OUT
D
IN
High Z
High Z
Hardware
V
IL
V
IL
V
IH
A1 - A17 = V
IL
, A9 = V
H
,
(3)
A0 = V
IL
A1 - A17 = V
IL
, A9 = V
H
,
A0 = V
IH
A0 = V
IL
A0 = V
IH
Manufacturer Code
(4)
Device Code
(4)
(4)
Device Code
(4)
Software
(5)
4. Manufacturer Code: 1F, Device Code: DA
5. See details under Software Product Identification Entry/Exit.
Notes: 1. X can be V
IL
or V
IH
.
2. Refer to AC Programming Waveforms.
3. V
H
= 12.0V
±
0.5V.
DC Characteristics
Symbol
I
LI
I
LO
Parameter
Input Load Current
Output Leakage Current
Condition
V
IN
= 0V to V
CC
V
I/O
= 0V to V
CC
Min
Max
10
10
100
300
3
40
0.8
Units
μ
A
μ
A
μ
A
μ
A
mA
mA
V
V
V
V
V
I
SB1
V
CC
Standby Current CMOS
CE = V
CC
- 0.3V to V
CC
Com.
Ind.
I
SB2
I
CC
V
IL
V
IH
V
OL
V
OH1
V
OH2
V
CC
Standby Current TTL
V
CC
Active Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Output High Voltage CMOS
CE = 2.0V to V
CC
f = 5 MHz; I
OUT
= 0 mA
2.0
I
OL
= 2.1 mA
I
OH
= -400
μ
A
I
OH
= -100
μ
A; V
CC
= 4.5V
.45
2.4
4.2
DC and AC Operating Range
AT29C020-90
0
°
C - 70
°
C
AT29C020-10
0
°
C - 70
°
C
-40
°
C - 85
°
C
5V
±
10%
AT29C020-12
0
°
C - 70
°
C
-40
°
C - 85
°
C
5V
±
10%
AT29C020-15
0
°
C - 70
°
C
-40
°
C - 85
°
C
5V
±
10%
Operating
Temperature (Case)
Com.
Ind.
V
CC
Power Supply
5V
±
10%
either boot block section is locked out. See Software Prod-
uct Identification Entry and Exit sections. When the device
is in the software product identification mode, a read from
location 00002H will show if programming the lower ad-
dress boot block is locked out while reading location
FFFF2H will do so for the upper boot block. If the data is
FE, the corresponding block can be programmed; if the
data is FF, the program lockout feature has been activated
and the corresponding block cannot be programmed. The
software product identification exit mode should be used
to return to standard operation.
Device Operation
(Continued)
4
AT29C020
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