PA28F400BVB60 Intel, PA28F400BVB60 Datasheet - Page 24

• Manufacturer Part Number: PA28F400BVB60
• Manufacturer: Intel

Specifications of PA28F400BVB60

• Density: 4Mb
• Access Time (max): 60ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temp Range: 0C to 70C
• Package Type: SOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3/4.5V
• Operating Supply Voltage (max): 3.6/5.5V
• Word Size: 8/16Bit
• Number Of Words: 512K/256K
• Supply Current: 65mA
• Mounting: Surface Mount
• Pin Count: 44
• Lead Free Status / Rohs Status: Not Compliant

4-MBIT SmartVoltage BOOT BLOCK FAMILY
24
FULL STATUS CHECK PROCEDURE
Block Erase Successful
Read Status Register
Check if Desired
Data (See Above)
Block Address
Write D0H and
Block Address
Block Erase
Read Status
Write 20H,
Full Status
Complete
Register
SR.4,5 =
SR.3 =
SR.7 =
SR.5 =
Start
0
0
0
1
0
1
1
1
NO
Suspend
Command Sequence
Block Erase Error
Erase
V
Figure 10. Automated Block Erase Flowchart
PP
Range Error
Error
Suspend Erase
YES
Loop
SEE NEW DESIGN RECOMMENDATIONS
Operation
Operation
Repeat for subsequent block erasures.
Full Status Check can be done after each block erase, or after a
Write FFH after the last operation to reset device to read array mode.
SR.3 MUST be cleared, if set during an erase attempt, before further
SR.5 is only cleared by the Clear Status Register Command, in
If error is detected, clear the Status Register before attempting
Standby
Standby
Standby
Standby
sequence of block erasures.
attempts are allowed by the Write State Machine.
cases where multiple blocks are erase before full status is checked.
retry or other error recovery.
Read
Write
Write
Bus
Bus
Erase Setup
Confirm
Command
Command
Erase
Data = 20H
Addr = Within Block to Be Erased
Data = D0H
Addr = Within Block to Be Erased
Status Register Data Toggle CE#
or OE# to Update Status Register
Check SR.7
1 = WSM Ready
0 = WSM 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
0530_10