LH28F640BFE-PBTL90 Sharp Electronics, LH28F640BFE-PBTL90 Datasheet - Page 15

• Manufacturer Part Number: LH28F640BFE-PBTL90
• Manufacturer: Sharp Electronics

Specifications of LH28F640BFE-PBTL90

• Cell Type: NOR
• Density: 64Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 22b
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 16b
• Number Of Words: 4M
• Supply Current: 25mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

sharp
Other than [110]
NOTES:
1. "WP#=0→1" means that WP# is driven to V
2. State transition from the current state [011] to the next state depends on the previous state.
3. When WP# is driven to V
4. In this state transitions table, assumes that lock configuration commands are not written in
Previous State
V
automatically locked.
previous, current and next state.
[110]
IL
.
-
-
-
-
-
-
(2)
(2)
Table 9. Block Locking State Transitions upon WP# Transition
[000]
[001]
[011]
[100]
[101]
[110]
[111]
State
Current State
IL
WP#
0
0
0
1
1
1
1
in [110] state, the state changes to [011] and the blocks are
DQ
LHF64F11
0
0
1
0
0
1
1
1
IH
DQ
0
1
1
0
1
0
1
and "WP#=1→0" means that WP# is driven to
0
Result after WP# Transition (Next State)
WP#=0→1
[100]
[101]
[110]
[111]
-
-
-
-
(1)
(4)
WP#=1→0
[000]
[001]
[011]
[011]
-
-
-
-
(3)
(1)
Rev. 2.41
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