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参数资料
| 型号： | S29CL032J0JFFM020 |
| 厂商： | SPANSION LLC |
| 元件分类： | PROM |
| 英文描述： | 1M X 32 FLASH 3.3V PROM, 54 ns, PBGA80 |
| 封装： | 13 X 11 MM, 1 MM PITCH, LEAD FREE, FORTIFIED, BGA-80 |
| 文件页数： | 24/79页 |
| 文件大小： | 2994K |
| 代理商： | S29CL032J0JFFM020 |
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30
S29CD-J & S29CL-J Flash Family
S29CD-J_CL-J_00_B3 March 30, 2009
Da ta
Sh e e t
8.7.1
Programming
Programming is a four-bus-cycle operation. The program command sequence is initiated by writing two
unlock write cycles, followed by the program setup command. The program address and data are written
next, which in turn initiate the Embedded Program algorithm. The system is not required to provide further
controls or timings. The device automatically generates the program pulses and verifies the programmed cell
margin. Section 20.1, Command Definitions on page 73 shows the address and data requirements for the
program command sequence.
Note the following:
When the Embedded Program algorithm is complete, the device returns to the read mode and address are
no longer latched. An address change is required to begin reading valid array data.
The system can determine the status of the program operation by using DQ7, DQ6 or RY/BY#. Refer to
Section 8.8, Write Operation Status on page 34 for information on these status bits.
A “0” cannot be programmed back to a “1.” Attempting to do so may halt the operation and set DQ5 to 1, or
cause the Data# Polling algorithm to indicate the operation was successful.. A succeeding read shows that
the data is still “0.” Only erase operations can convert a “0” to a “1.”
Any commands written to the device during the Embedded Program Algorithm are ignored except the
Program Suspend command.
A hardware reset immediately terminates the program operation; the program command sequence should
be re-initiated once the device has returned to the read mode, to ensure data integrity.
For the 32Mb S29CD-J and S29CL-J devices only:
Please refer to the application note “Recommended Mode of Operation for Spansion 110 nm
S29CD032J/S29CL032J Flash Memory” publication number S29CD-CL032J_Recommend_AN for
programming best practices.
Figure 8.5 Program Operation
Note
See Table 19.1 and Table 20.2 for program command sequence.
START
Write Program
Command Sequence
Data Poll
from System
Verify Data?
No
Yes
Last Address?
No
Yes
Programming
Completed
Increment Address
Embedded
Program
algorithm
in progress
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