N28F001BXT150 Intel, N28F001BXT150 Datasheet - Page 20

• Manufacturer Part Number: N28F001BXT150
• Manufacturer: Intel

Specifications of N28F001BXT150

• Density: 1Mb
• Access Time (max): 150ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 17b
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: PLCC
• Program/erase Volt (typ): 11.4 to 12.6V
• 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

28F001BX
20
FULL STATUS CHECK PROCEDURE
Check if Desired
Block Address
Block Address
SR.4, 5 = 1? =
Register Data
Read Status
Read Status
(See Above)
Block Erase
Block Erase
Write D0H,
Write 20H,
Completed
Successful
Full Status
SR.7 = 1?
SR.3 = 0?
SR.5 = 0?
Register
Start
Yes
No
Yes
Yes
Yes
No
No
No
Command Seq. Error
Block Erase Error
Figure 9. 28F001BX Block Erase Flowchart
V
No
PP
Suspend
Erase?
Range Error
Erase Suspend
Yes
Loop
Repeat for subsequent blocks.
Full status check can be done after each block, or after a sequence of
blocks.
Write FFH after the last block erase operation to reset the device to
read array mode.
SR.3 must be cleared, if set during an erase attempt, before further
attempts are allowed by the write state machine.
SR.5 is only cleared by the Clear Status Register command in cases
where multiple blocks are erased before full status is checked.
If an error is detected, clear the status register before attempting retry
or other error recovery.
Operation
Operation
Standby
Standby
Standby
Standby
Write
Write
Read
Bus
Bus
Erase Setup
Command
Command
Erase
Data = 20H
Addr = Within Block to Be Erased
Data = D0H
Addr = Within Block to Be Erased
Status Register Data
Toggle OE# or CE# to Update
Status Register
Check SR.7
1 = Ready
0 = Busy
Check SR.3
1 = V
Check SR.4, 5
Both 1 = Command Sequence
Error
Check SR.5
1 = Block Erase Error
PP
Low Detect
Comments
Comments
0406_09