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| 型號： | AM28F020A-120EC |
| 廠商： | ADVANCED MICRO DEVICES INC |
| 元件分類： | PROM |
| 英文描述： | 2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| 中文描述： | 256K X 8 FLASH 12V PROM, 120 ns, PDSO32 |
| 封裝： | TSOP-32 |
| 文件頁數(shù)： | 9/35頁 |
| 文件大?。?/td> | 470K |
| 代理商： | AM28F020A-120EC |
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Am28F020A
9
FUNCTIONAL DESCRIPTION
Description Of User Modes
Table 1.
Am28F020A Device Bus Operations (Notes 7 and 8)
Legend:
X = Don’t care, where Don’t Care is either V
IL
or V
IH
levels. V
PPL
= V
PP
<
V
CC
+ 2 V See DC Characteristics for voltage levels
of V
PPH
. 0 V < An < V
CC
+ 2 V (normal TTL or CMOS input levels, where n = 0 or 9).
Notes:
1. V
PPL
may be grounded, connected with a resistor to ground, or < V
CC
+ 2.0 V V
PPH
is the programming voltage specified for
the device. Refer to the DC characteristics. When V
PP
= V
PPL
, memory contents can be read but not written or erased.
2. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 2.
3. 11.5 < V
ID
< 13.0 V Minimum V
ID
rise time and fall time (between 0 and V
ID
voltages) is 500 ns.
4. Read operation with V
PP
= V
PPH
may access array data or the Auto select codes.
5. With V
PP
at high voltage, the standby current is I
CC
+ I
PP
(standby).
6. Refer to Table 3 for valid D
IN
during a write operation.
7. All inputs are Don’t Care unless otherwise stated, where Don’t Care is either V
IL
or V
IH
levels. In the Auto select mode all
addresses except A
9
and A
0
must be held at V
IL
.
8. If V
CC
≤
1.0 Volt, the voltage difference between V
PP
and V
CC
should not exceed 10.0 volts. Also, the Am28F256 has a V
PP
rise time and fall time specification of 500 ns minimum.
Operation
CE
#
(E
#
)
OE
#
(G
#
)
WE
#
(W
#
)
V
PP
(Note 1)
A0
A9
I/O
Read-Only
Read
V
IL
V
IL
X
V
PPL
A0
A9
D
OUT
Standby
V
IH
X
X
V
PPL
X
X
HIGH Z
Output Disable
V
IL
V
IH
V
IH
V
PPL
X
X
HIGH Z
Auto-select Manufacturer
Code (Note 2)
V
IL
V
IL
V
IH
V
PPL
V
IL
V
ID
(Note 3)
CODE
(01h)
Auto-select Device
Code (Note 2)
V
IL
V
IL
V
IH
V
PPL
V
IH
V
ID
(Note 3)
CODE
(29h)
Read/Write
Read
V
IL
V
IL
V
IH
V
PPH
A0
A9
D
OUT
(Note 4)
Standby (Note 5)
V
IH
X
X
V
PPH
X
X
HIGH Z
Output Disable
V
IL
V
IH
V
IH
V
PPH
X
X
HIGH Z
Write
V
IL
V
IH
V
IL
V
PPH
A0
A9
D
IN
(Note 6)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM28F020A-120ECB | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-120EE | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-120EEB | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-120EI | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
| AM28F020A-120EIB | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:2 Megabit (256 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms |
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