RC28F128M29EWLA NUMONYX, RC28F128M29EWLA Datasheet - Page 56

• Manufacturer Part Number: RC28F128M29EWLA
• Description: IC FLASH 128MBIT 25NS 64BGA
• Manufacturer: NUMONYX
• Series: Axcell™r

Specifications of RC28F128M29EWLA

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 128M (16Mx8, 8Mx16)
• Speed: 60ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Registers
7
7.1
7.1.1
7.1.2
7.1.3
56
Registers
The device features two registers:
1.
2.
Lock Register
The Lock Register is a 16-bit one-time programmable register. The bits in the Lock Register
are summarized in
See
to read and program the Lock Register.
Password Protection Mode Lock bit (DQ2)
The Password Protection Mode Lock bit, DQ0, is one-time programmable. Programming
(setting to ‘0’) this bit permanently places the device in Password Protection mode.
Any attempt to program the Password Protection mode Lock bit when the Non-Volatile
Protection Mode bit is programmed causes the operation to abort and the device to return to
Read mode.
Non-Volatile Protection Mode Lock bit (DQ1)
The Non-Volatile Protection Mode Lock bit, DQ1, is one-time programmable. Programming
(setting to ‘0’) this bit permanently places the device in Non-Volatile Protection mode.
When shipped from Numonyx factory, all parts default to operate in Non-Volatile Protection
mode. The memory blocks are unprotected (NVPBs set to ‘1’).
Any attempt to program the Non-Volatile Protection mode Lock bit when the Password
Protection Mode bit is programmed causes the operation to abort and the device to return to
Read mode.
Extended Memory Block Protection bit (DQ0)
If the device is shipped with the Extended Memory Block unlocked, the block can be
protected by setting the Extended Memory Block Protection bit, DQ0, to ‘0’. However, this bit
is one-time programmable and once protected the Extended Memory Block cannot be
unprotected any more.
The Extended Memory Block protection status can be read in Auto Select mode either by
applying V
Table 9
Section 6.3.3: Lock Register command set
A Lock Register that allows to configure the memory blocks and Extended Memory
Block protection (see
A Status Register that provides information on the current or previous Program or
Erase operations.
and
ID
Table
to A9 (see
10).
Table 15: Lock Register
Table 7
Table 16: Block Protection
and
208031-04
Table
8) or by issuing an Auto Select command (see
bits.
for a description of the commands allowing
Status)
Numonyx
®
Axcell™ M29EW