S29GL256P11TFIV20 Spansion Inc., S29GL256P11TFIV20 Datasheet - Page 46

• Manufacturer Part Number: S29GL256P11TFIV20
• Description: IC 32PAGE-MODE FLASH MEMORY
• Manufacturer: Spansion Inc.

Specifications of S29GL256P11TFIV20

• Cell Type: NOR
• Density: 256Mb
• Access Time (max): 110ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 25/24Bit
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 32M/16M
• Supply Current: 110mA
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / Rohs Status: Compliant

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5. There is no means to verify what the password is after it is set.
6. The Password Mode Lock Bit, once set, prevents reading the 64-bit password on the data bus and
7. The Password Mode Lock Bit is not erasable.
8. The lower two address bits (A1–A0) are valid during the Password Read, Password Program, and
9. The exact password must be entered in order for the unlocking function to occur.
10. The Password Unlock command cannot be issued any faster than 1 µs at a time to prevent a
11. Approximately 1 µs is required for unlocking the device after the valid 64-bit password is given to
12. Password verification is only allowed during the password programming operation.
13. All further commands to the password region are disabled and all operations are ignored.
14. If the password is lost after setting the Password Mode Lock Bit, there is no way to clear the PPB
15. Entry command sequence must be issued prior to any of any operation and it disables reads and
16. If the user attempts to program or erase a protected sector, the device ignores the command and
17. A program or erase command to a protected sector enables status polling and returns to read
18. The programming of the DYB, PPB, and PPB Lock for a given sector can be verified by writing
further password programming.
Password Unlock.
hacker from running through all the 64-bit combinations in an attempt to correctly match a
password.
the device.
Lock Bit.
writes for Sector 0. Reads and writes for other sectors excluding Sector 0 are allowed.
returns to read mode.
mode without having modified the contents of the protected sector.
individual status read commands DYB Status, PPB Status, and PPB Lock Status to the device.
S29GL-P MirrorBit
D a t a
®
Flash Family
S h e e t
S29GL-P_00_A13 November 17, 2010