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參數(shù)資料
| 型號(hào)： | AM29F016-75ECB |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | LM329 Precision Reference; Package: TO-92; No of Pins: 3; Qty per Container: 1800; Container: Box |
| 中文描述： | 16兆位（2097152 × 8位）的CMOS 5.0伏只，扇區(qū)擦除閃存 |
| 文件頁數(shù)： | 8/36頁 |
| 文件大?。?/td> | 219K |
| 代理商： | AM29F016-75ECB |
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8
Am29F016
Table 1.
Am29F016 User Bus Operations
Legend:
L = logic 0, H = logic 1, X = Don’t Care. See DC Characteristics for voltage levels.
Notes:
1. Manufacturer and device codes may also be accessed via a command register write sequence. Refer to Table 5.
2. Refer to the section on Sector Group Protection.
Read Mode
The Am29F016 has two control functions which must
be satisfied in order to obtain data at the outputs. CE is
the power control and should be used for device selec-
tion. OE is the output control and should be used to
gate data to the output pins if the device is selected.
Address access time (t
ACC
) is equal to the delay from
stable addresses to valid output data. The chip
enable access time (t
CE
) is the delay from stable
addresses and stable CE to valid data at the output
pins. The output enable access time is the delay from
the falling edge of OE to valid data at the output pins
(assuming the addresses have been stable for at
least t
ACC
–t
OE
time).
Standby Mode
There are two ways to implement the standby mode on
the Am29F016 device, one using both the CE and
RESET pins; the other via the RESET pin only.
When using both pins, a CMOS standby mode is
achieved with CE and RESET inputs both held at V
CC
±
0.3 V. Under this condition the current is typically
reduced to less than 1
μ
A. A TTL standby mode is
achieved with CE and RESET pins held at V
IH
. Under
this condition the current is typically reduced to 200
μ
A.
The device can be read with standard access time (t
CE
)
from either of these standby modes
.
When using the RESET pin only, a CMOS standby
mode is achieved with RESET input held at V
SS
±
0.3 V
(CE = don’t care). Under this condition the current is typ-
ically reduced to less than 1
μ
A. A TTL standby mode is
achieved with RESET pin held at V
IL
(CE = don’t care).
Under this condition the current is typically reduced to
less than 200
μ
A. Once the RESET pin is taken high,
the device requires 50 ns of wake up time before out-
puts are valid for read access.
In the standby mode the outputs are in the high imped-
ance state, independent of the OE input.
Output Disable
With the OE input at a logic high level (V
IH
), output from
the device is disabled. This will cause the output pins to
be in a high impedance state.
Operation
CE
OE
WE
A0
A1
A6
A9
DQ0
–
DQ7
RESET
Autoselect, AMD Manuf. Code (1)
L
L
H
L
L
L
V
ID
Code
H
Autoselect Device Code (1)
L
L
H
H
L
L
V
ID
Code
H
Read
L
L
X
A0
A1
A6
A9
D
OUT
H
Standby
H
X
X
X
X
X
X
HIGH Z
H
Output Disable
L
H
H
X
X
X
X
HIGH Z
H
Write
L
H
L
A0
A1
A6
A9
D
IN
H
Enable Sector Group Protect (2)
L
V
ID
L
X
X
X
V
ID
X
H
Verify Sector Group Protect (2)
L
L
H
L
H
L
V
ID
Code
H
Temporary Sector Group Unprotect
X
X
X
X
X
X
X
X
V
ID
Hardware Reset/Standby
X
X
X
X
X
X
X
HIGH Z
L
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