AM29F010-120JC Spansion Inc., AM29F010-120JC Datasheet - Page 16
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AM29F010-120JC
Manufacturer Part Number
AM29F010-120JC
Description
Manufacturer
Spansion Inc.
Datasheet
1.AM29F010-120JC.pdf
(31 pages)
Specifications of AM29F010-120JC
Cell Type
NOR
Density
1Mb
Access Time (max)
120ns
Interface Type
Parallel
Boot Type
Not Required
Address Bus
17b
Operating Supply Voltage (typ)
5V
Operating Temp Range
0C to 70C
Package Type
PLCC
Program/erase Volt (typ)
4.5 to 5.5V
Sync/async
Asynchronous
Operating Temperature Classification
Commercial
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Word Size
8b
Number Of Words
128K
Supply Current
30mA
Mounting
Surface Mount
Pin Count
32
Lead Free Status / Rohs Status
Not Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AM29F010-120JC
Manufacturer:
AMD
Quantity:
20 000
DQ5: Exceeded Timing Limits
DQ5 indicates whether the program or erase time has
exceeded a specified internal pulse count limit. Under
these conditions DQ5 produces a “1.” This is a failure
condition that indicates the program or erase cycle was
not successfully completed.
The DQ5 failure condition may appear if the system
tries to program a “1” to a location that is previously pro-
grammed to “0.” Only an erase operation can change
a “0” back to a “1.” Under this condition, the device
halts the operation, and when the operation has ex-
ceeded the timing limits, DQ5 produces a “1.”
Under both these conditions, the system must issue the
reset command to return the device to reading array
data.
DQ3: Sector Erase Timer
After writing a sector erase command sequence, the
system may read DQ3 to determine whether or not an
erase operation has begun. (The sector erase timer
does not apply to the chip erase command.) If addi-
Notes:
1. DQ7 requires a valid address when reading status information. Refer to the appropriate subsection for further details.
2. DQ5 switches to ‘1’ when an Embedded Program or Embedded Erase operation has exceeded the maximum timing limits.
16
Embedded Program Algorithm
Embedded Erase Algorithm
See “DQ5: Exceeded Timing Limits” for more information.
Operation
Table 5. Write Operation Status
Am29F010
(Note 1)
DQ7#
DQ7
0
tional sectors are selected for erasure, the entire time-
out also applies after each additional sector erase
command. When the time-out is complete, DQ3
switches from “0” to “1.” The system may ignore DQ3
if the system can guarantee that the time between ad-
ditional sector erase commands will always be less
than 50 s. See also the “Sector Erase Command Se-
quence” section.
After the sector erase command sequence is written,
the system should read the status on DQ7 (Data# Poll-
ing) or DQ6 (Toggle Bit I) to ensure the device has ac-
cepted the command sequence, and then read DQ3. If
DQ3 is “1”, the internally controlled erase cycle has be-
gun; all further commands are ignored until the erase
operation is complete. If DQ3 is “0”, the device will ac-
cept additional sector erase commands. To ensure the
command has been accepted, the system software
should check the status of DQ3 prior to and following
each subsequent sector erase command. If DQ3 is
high on the second status check, the last command
might not have been accepted. Table 5 shows the out-
puts for DQ3.
Toggle
Toggle
DQ6
(Note 2)
DQ5
0
0
DQ3
N/A
1