參數(shù)資料
型號: AM29F016-75SIB
廠商: Advanced Micro Devices, Inc.
英文描述: LM3311 Step-Up PWM DC/DC Converter with Integrated LDO, Op-Amp, and Gate Pulse Modulation Switch; Package: LLP; No of Pins: 24; Qty per Container: 4500; Container: Reel
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): 9/36頁
文件大?。?/td> 219K
代理商: AM29F016-75SIB
Am29F016
9
Autoselect
The autoselect mode allows the reading of a binary
code from the device and will identify its manufacturer
and type. This mode is intended for use by program-
ming equipment for the purpose of automatically
matching the device to be programmed with its corre-
sponding programming algorithm. This mode is func-
tional over the entire temperature range of the device.
To activate this mode, the programming equipment
must force V
ID
(11.5 V to 12.5 V) on address pin A9.
Two identifier bytes may then be sequenced from the
device outputs by toggling address A0 from V
IL
to V
IH
.
All addresses are don’t cares except A0, A1, and A6
(seeTable 2).
The manufacturer and device codes may also be read
via the command register, for instances when the
Am29F016 is erased or programmed in a system with-
out access to high voltage on the A9 pin. The command
sequence is illustrated in Table 5 (see Autoselect Com-
mand Sequence).
Byte 0 (A0 = V
IL
) represents the manufacturer’s code
(AMD = 01H) and byte 1 (A0 = V
IH
) the device identifier
code for Am29F016 = ADH. These two bytes are given
in the table below. All identifiers for manufacturer and
device will exhibit odd parity with DQ7 defined as the
parity bit. In order to read the proper device codes
when executing the Autoselect, A1 must be V
IL
(see
Table 2).
The autoselect mode also facilitates the determination
of sector group protection in the system. By performing
a read operation at the address location XX02H with
the higher order address bits A18, A19, and A20 set to
the desired sector group address, the device will return
01H for a protected sector group and 00H for a
non-protected sector group.
Table 2.
Am29F016 Sector Protection Verify Autoselect Codes
* Outputs 01H at protected sector addresses
Type
A18 to A20
A6
A1
A0
Code
(HEX)
DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0
Manufacturer Code
AMD
X
X
X
V
IL
V
IL
V
IL
01H
0
0
0
0
0
0
0
1
Am29F016 Device
X
X
X
V
IL
V
IL
V
IH
ADH
1
0
1
0
1
1
0
1
Sector Group Protection
Sector Group
Address
V
IL
V
IH
V
IL
01H*
0
0
0
0
0
0
0
1
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AM29F016-75FIB 16-Megabit (2,097,152 x 8-Bit) CMOS 5.0 Volt-only, Sector Erase Flash Memory
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