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參數(shù)資料
| 型號： | 29C256 |
| 廠商： | Atmel Corp. |
| 英文描述： | 256K 32K x 8 5-volt Only CMOS Flash Memory |
| 中文描述： | 256K 32K的× 8 5伏只有閃存的CMOS |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 343K |
| 代理商： | 29C256 |
5
AT29C256
0046P–FLASH–10/04
Notes:
1. X can be V
IL
or V
IH
.
2. Refer to AC Programming Waveforms.
3. V
H
= 12.0V
±
0.5V.
4. Manufacturer Code: 1F, Device Code: DC.
5. See details under Software Product Identification Entry/Exit.
DC Characteristics
DC and AC Operating Range
AT29C256-70
AT29C256-90
AT29C256-12
AT29C256-15
Operating
Temperature (Case)
Com.
0°C - 70°C
0°C - 70°C
0°C - 70°C
0°C - 70°C
Ind.
-40°C - 85°C
-40°C - 85°C
-40°C - 85°C
-40°C - 85°C
V
CC
Power Supply
5V
±
5%
5V
±
10%
5V
±
10%
5V
±
10%
Note:
Not recommended for New Designs.
Operating Modes
Mode
CE
OE
WE
Ai
I/O
Read
V
IL
V
IL
V
IH
Ai
D
OUT
Program
(2)
V
IL
V
IH
V
IL
Ai
D
IN
5V Chip Erase
V
IL
V
IH
X
(1)
V
IL
Ai
Standby/Write Inhibit
V
IH
X
X
High Z
Write Inhibit
X
X
V
IH
Write Inhibit
X
V
IL
X
Output Disable
X
V
IH
X
High Z
High Voltage Chip Erase
V
IL
V
H
(3)
V
IL
X
High Z
Product Identification
Hardware
V
IL
V
IL
V
IH
A1-A14 = V
IL
, A9 = V
H
, A0 = V
IL
Manufacturer Code
(4)
A1-A14 = V
IL
, A9 = V
H
, A0 = V
IH
Device Code
(4)
Software
(5)
A0 = V
IL
Manufacturer Code
(4)
A0 = V
IH
Device Code
(4)
Symbol
Parameter
Condition
Min
Max
Units
I
LI
Input Load Current
V
IN
= 0V to V
CC
10
μA
I
LO
Output Leakage Current
V
I/O
= 0V to V
CC
10
μA
I
SB1
V
CC
Standby Current CMOS
CE = V
CC
- 0.3V to V
CC
300
μA
I
SB2
V
CC
Standby Current TTL
CE = 2.0V to V
CC
3
mA
I
CC
V
CC
Active Current
f = 5 MHz; I
OUT
= 0 mA
50
mA
V
IL
Input Low Voltage
0.8
V
V
IH
Input High Voltage
2.0
V
V
OL
Output Low Voltage
I
OL
= 2.1 mA
0.45
V
V
OH1
Output High Voltage
I
OH
= -400 μA
2.4
V
V
OH2
Output High Voltage CMOS
I
OH
= -100 μA; V
CC
= 4.5V
4.2
V
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