M50LPW040K1 Micron Technology Inc, M50LPW040K1 Datasheet - Page 17

• Manufacturer Part Number: M50LPW040K1
• Manufacturer: Micron Technology Inc

Specifications of M50LPW040K1

• Cell Type: NOR
• Density: 4Mb
• Access Time (max): 11/50ns
• Interface Type: Parallel/Serial
• Boot Type: Top
• Address Bus: 4/11Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Package Type: PLCC
• Sync/async: Async/Sync
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8b
• Number Of Words: 512K
• Supply Current: 20mA
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / Rohs Status: Compliant

Table 15. Lock Register Bit Definitions
Note: 1. Applies to Top Block Lock Register (T_BLOCK_LK) and Top Block [-1] Lock Register (T_MINUS01_LK) to Top Block [-7] Lock Reg-
Table 16. General Purpose Input Register Definition
Note: 1. Applies to the General Purpose Input Register (GPI_REG).
7-3
7-5
Bit
Bit
2
1
0
4
3
2
1
0
ister (T_MINUS07_LK).
Lock-Down
Read-Lock
Write-Lock
Bit Name
Bit Name
GPI4
GPI3
GPI2
GPI1
GPI0
Value
Value
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
Reserved
Bus Read operations in this Block always return 00h.
Bus read operations in this Block return the Memory Array contents. (Default
value).
Changes to the Read-Lock bit and the Write-Lock bit cannot be performed. Once a
‘1’ is written to the Lock-Down bit it cannot be cleared to ‘0’; the bit is always reset
to ‘0’ following a Reset (using RP or INIT) or after power-up.
Read-Lock and Write-Lock can be changed by writing new values to them. (Default
value).
Program and Block Erase operations in this Block will set an error in the Status
Register. The memory contents will not be changed. (Default value).
Program and Block Erase operations in this Block are executed and will modify the
Block contents.
Reserved
Input Pin GPI4 is at V
Input Pin GPI4 is at V
Input Pin GPI3 is at V
Input Pin GPI3 is at V
Input Pin GPI2 is at V
Input Pin GPI2 is at V
Input Pin GPI1 is at V
Input Pin GPI1 is at V
Input Pin GPI0 is at V
Input Pin GPI0 is at V
(1)
IH
IL
IH
IL
IH
IL
IH
IL
IH
IL
(1)
Function
Function
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