PC28F128P33T85A NUMONYX, PC28F128P33T85A Datasheet - Page 65

• Manufacturer Part Number: PC28F128P33T85A
• Description: IC FLASH 128MBIT 85NS 64EZBGA
• Manufacturer: NUMONYX
• Series: StrataFlash™r

Specifications of PC28F128P33T85A

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 128M (8Mx16)
• Speed: 85ns
• Interface: Parallel
• Voltage - Supply: 2.3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TBGA
• Cell Type: NOR
• Density: 128Mb
• Access Time (max): 85ns
• Interface Type: Parallel/Serial
• Boot Type: Top
• Address Bus: 23b
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: EZBGA
• Sync/async: Async/Sync
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 16b
• Number Of Words: 8M
• Supply Current: 28mA
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 888065; 888065; PC28F128P33T85 888065

Numonyx™ StrataFlash
11.4.6.4
Figure 31: Block Locking State Diagram
11.4.6.5
Note:
November 2007
Order Number: 314749-05
Power-Up/Reset
Block Lock Status
The Read Device Identifier command is used to determine a block’s lock status (see
Section 11.2.3, “Read Device Identifier” on page
addressed block’s lock status; DQ0 is the addressed block’s lock bit, while DQ1 is the
addressed block’s lock-down bit.
Block Locking During Suspend
Block lock and unlock changes can be performed during an erase suspend. To change
block locking during an erase operation, first issue the Erase Suspend command.
Monitor the Status Register until SR[7] and SR[6] are set, indicating the device is
suspended and ready to accept another command.
Next, write the desired lock command sequence to a block, which changes the lock
state of that block. After completing block lock or unlock operations, resume the erase
operation using the Erase Resume command.
A Lock Block Setup command followed by any command other than Lock Block, Unlock
Block, or Lock-Down Block produces a command sequence error and set Status
Register bits SR[4] and SR[5]. If a command sequence error occurs during an erase
suspend, SR[4] and SR[5] remains set, even after the erase operation is resumed.
Unless the Status Register is cleared using the Clear Status Register command before
resuming the erase operation, possible erase errors may be masked by the command
sequence error.
If a block is locked or locked-down during an erase suspend of the same block, the lock
status bits change immediately. However, the erase operation completes when it is
resumed. Block lock operations cannot occur during a program suspend. See
, “Write State Machine” on page
suspend.
Notes:
®
Embedded Memory (P33)
1. [a,b,c] represents [WP#, DQ1, DQ0]. X = Don’t Care.
2. DQ1 indicates Block Lock-Down status. DQ1 = ‘0’, Lock-Down has not been issued
3. DQ0 indicates block lock status. DQ0 = ‘0’, block is unlocked. DQ0 = ‘1’, block is
4. Locked-down = Hardware + Software locked.
5. [011] states should be tracked by system software to determine difference between
to this block. DQ1 = ‘1’, Lock-Down has been issued to this block.
locked.
Hardware Locked and Locked-Down states.
Unlocked
Locked
[X01]
[X00]
Software Block Lock (0x60/0x01) or Software Block Unlock (0x60/0xD0)
Software Block Lock-Down (0x60/0x2F)
W P# hardware control
87, which shows valid commands during an erase
Software
Locked-
Down
Locked
[111]
[011]
4,5
WP# Hardware Control
56). Data bits DQ[1:0] display the
Hardware
Unlocked
Locked
[011]
[110]
5
Appendix
Datasheet
65