AM29F010A Advanced Micro Devices, AM29F010A Datasheet - Page 8
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AM29F010A
Manufacturer Part Number
AM29F010A
Description
1 Megabit (128 K x 8-bit) CMOS 5.0 Volt-only/ Uniform Sector Flash Memory
Manufacturer
Advanced Micro Devices
Datasheet
1.AM29F010A.pdf
(31 pages)
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Program and Erase Operation Status
During an erase or program operation, the system may
check the status of the operation by reading the status
bits on DQ7–DQ0. Standard read cycle timings and I
read specifications apply. Refer to “Write Operation
Status” for more information, and to each AC Charac-
teristics section in the appropriate data sheet for timing
diagrams.
Standby Mode
When the system is not reading or writing to the device,
it can place the device in the standby mode. In this
mode, current consumption is greatly reduced, and the
outputs are placed in the high impedance state, inde-
pendent of the OE# input.
Autoselect Mode
The autoselect mode provides manufacturer and de-
vice identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equipment
to automatically match a device to be programmed with
its corresponding programming algorithm. However,
the autoselect codes can also be accessed in-system
through the command register.
When using programming equipment, the autoselect
mode requires V
A1, and A0 must be as shown in Autoselect Codes
(High Voltage Method) table. In addition, when verifying
sector protection, the sector address must appear on
8
Sector
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
ID
on address pin A9. Address pins A6,
A16
0
0
0
0
1
1
1
1
Table 2. Am29F010A Sector Addresses Table
A15
0
0
1
1
0
0
1
1
Am29F010A
CC
The device enters the CMOS standby mode when the
CE# pin is held at V
restricted voltage range than V
the TTL standby mode when CE# is held at V
device requires the standard access time (t
is ready to read data.
If the device is deselected during erasure or program-
ming, the device draws active current until the
operation is completed.
I
standby current specification.
Output Disable Mode
When the OE# input is at V
disabled. The output pins are placed in the high imped-
ance state.
the appropriate highest order address bits. Refer to the
corresponding Sector Address Tables. The Command
Definitions table shows the remaining address bits that
are don’t care. When all necessary bits have been set
as required, the programming equipment may then
read the corresponding identifier code on DQ7–DQ0.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in the Command Defini-
tions table. This method does not require V
“Command Definitions” for details on using the autose-
lect mode.
A14
CC3
0
1
0
1
0
1
0
1
in the DC Characteristics tables represents the
CC
0.5 V. (Note that this is a more
0C000h-0FFFFh
1C000h-1FFFFh
Address Range
08000h-0BFFFh
18000h-1BFFFh
00000h-03FFFh
04000h-07FFFh
10000h-13FFFh
14000h-17FFFh
IH
, output from the device is
IH
.) The device enters
CE
) before it
ID
IH
. See
. The