PA28F400B5B80 Intel, PA28F400B5B80 Datasheet - Page 20

• Manufacturer Part Number: PA28F400B5B80
• Manufacturer: Intel

Specifications of PA28F400B5B80

• Density: 4Mb
• Access Time (max): 80ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 5V
• Operating Temp Range: 0C to 70C
• Package Type: SOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 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

28F200B5, 28F004/400B5, 28F800B5
20
SR.7 WRITE STATE MACHINE STATUS
SR.6 = ERASE-SUSPEND STATUS (ESS)
SR.5 = ERASE STATUS (ES)
SR.4 = PROGRAM STATUS (DWS)
SR.3 = V
SR.2–SR.0 = RESERVED FOR FUTURE
WSMS
7
PP
1 = Ready
0 = Busy
1 = Erase Suspended
0 = Erase In Progress/Completed
1 = Error In Block Erasure
0 = Successful Block Erase
1 = Error in Byte/Word Program
0 = Successful Byte/Word Program
1 = V
0 = V
ENHANCEMENTS (R)
STATUS (VPPS)
PP
PP
ESS
Low Detect, Operation Abort
OK
6
ES
5
Table 8. Status Register Bit Definition
(WSMS)
DWS
4
1. V
2. WSM has applied the max number of erase
3. Erase Set-Up command was followed by a
1. V
2. WSM has applied the max number of program
3. Erase Set-Up command was followed by a
Check WSM bit first to determine word/byte
program or block erase completion, before
checking program or erase status bits.
When Erase Suspend is issued, WSM halts
execution and sets both WSMS and ESS bits to
“1.” ESS bit remains set to “1” until an Erase
Resume command is issued.
When this bit is set to “1,” one of the following has
occurred:
When this bit is set to “1,” one of the following has
occurred:
The V
indication of V
level only after the Program or Erase command
sequences have been entered, and informs the
system if V
not guaranteed to report accurate feedback
between V
These bits are reserved for future use and should
be masked out when polling the status register.
VPPS
pulses to the block and is still unable to verify
successful block erasure.
command other than Erase Confirm.
pulses and is still unable to verify a successful
program.
command other than Erase Confirm.
PP
PP
3
out of range.
out of range.
PP
status bit does not provide continuous
PPLK
PP
is out of range. The V
PP
and V
level. The WSM interrogates V
R
2
NOTES:
PPH
.
PRELIMINARY
R
1
PP
status bit is
R
0
PP