LH28F400SUHT-LC15 Sharp Electronics, LH28F400SUHT-LC15 Datasheet - Page 12

• Manufacturer Part Number: LH28F400SUHT-LC15
• Manufacturer: Sharp Electronics

Specifications of LH28F400SUHT-LC15

• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 150ns
• Interface Type: Parallel
• Address Bus: 19/18Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP-I
• Program/erase Volt (typ): 4.5 to 5.5V
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 512K/256K
• Supply Current: 35mA
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / Rohs Status: Not Compliant

LH28F400SU-LC
12
READ COMPATIBLE
READ ARRAY DATA
STATUS REGISTER
ERASE RESUMED
WRITE FFH
WRITE D0H
WRITE B0H
READING
CSR.7 =
CSR.6 =
START
DONE
YES
1
1
Figure 8. Erase Suspend to Read Array with Compatible Status Register
0
0
NO
ERASE COMPLETED
READ ARRAY DATA
WRITE FFH
See Command Bus Cycle notes for description of codes.
OPERATION
Standby
Standby
Read
Read
Write
Write
Write
BUS
COMMAND
Resume
Suspend
Erase
Erase
Read
Array
4M (512K × 8, 256K × 16) Flash Memory
D = D0H
A = X
D = B0H
A = X
Q = CSRD
Toggle CE or OE
to update CSRD.
A = X
Check CSR.7
1 = WSM Ready
0 = WSM Busy
Check CSR.6
1 = Erase Suspended
0 = Erase Completed
D = FFH
A = X
Q = AD
Read must be from
block other than the
one suspended.
COMMENTS
28F400SUH-LC15-6