LH28F400BVE-TL85 Sharp Electronics, LH28F400BVE-TL85 Datasheet - Page 17

• Manufacturer Part Number: LH28F400BVE-TL85
• Manufacturer: Sharp Electronics

Specifications of LH28F400BVE-TL85

• Cell Type: NOR
• Density: 4Mb
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 3.3/5V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP
• Program/erase Volt (typ): 2.7/3.3/5/12V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 2.7/4.5V
• 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: 48
• Lead Free Status / Rohs Status: Not Compliant

SR.7 = WRITE STATE MACHINE STATUS (WSMS)
SR.6 = ERASE SUSPEND STATUS (ESS)
SR.5 = ERASE STATUS (ES)
SR.4 = WORD/BYTE WRITE STATUS (WBWS)
SR.3 = V
SR.2 = WORD/BYTE WRITE SUSPEND STATUS
SR.1 = DEVICE PROTECT STATUS (DPS)
SR.0 = RESERVED FOR FUTURE ENHANCEMENTS (R)
WSMS
1 = Ready
0 = Busy
1 = Block Erase Suspended
0 = Block Erase in Progress/Completed
1 = Error in Block Erasure
0 = Successful Block Erase
1 = Error in Word/Byte Write
0 = Successful Word/Byte Write
1 = V
0 = V
1 = Word/Byte Write Suspended
0 = Word/Byte Write in Progress/Completed
1 = WP# or RP# Lock Detected, Operation Abort
0 = Unlock
7
(WBWSS)
PP
PP
PP
STATUS (VPPS)
Low Detect, Operation Abort
OK
ESS
6
ES
5
Table 7. Status Register Definition
WBWS
4
Check RY/BY# or SR.7 to determine block erase or
word/byte write completion. SR.6-0 are invalid while
SR.7="0".
If both SR.5 and SR.4 are "1"s after a block erase attempt,
an improper command sequence was entered.
SR.3 does not provide a continuous indication of V
The WSM interrogates and indicates the V
Block Erase or Word/Byte Write command sequences. SR.3
is not guaranteed to reports accurate feedback only when
V
The WSM interrogates the WP# and RP# only after Block
Erase or Word/Byte Write command sequences. It informs
the system, depending on the attempted operation, if the
WP# is not V
SR.0 is reserved for future use and should be masked out
when polling the status register.
PP
VPPS
V
3
PPH1/2/3
IH,
.
RP# is not V
WBWSS
2
NOTES:
HH
.
DPS
1
PP
level only after
Rev. 1.02
PP
R
0
level.