RC28F256K3C120 NUMONYX, RC28F256K3C120 Datasheet - Page 54

• Manufacturer Part Number: RC28F256K3C120
• Description: IC FLASH 256MBIT 120NS 64BGA
• Manufacturer: NUMONYX

Specifications of RC28F256K3C120

• Rohs Status: RoHS non-compliant
• Format - Memory: FLASH
• Memory Type: StrataFlash® FLASH
• Memory Size: 256M (16Mx16)
• Speed: 120ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-BGA
• Other names: 853157

28F640K3, 28F640K18, 28F128K3, 28F128K18, 28F256K3, 28F256K18
13.2
54
Figure 24. Protection Register Memory Map
Note: User-programmable bits are OTP and may be programed individually. However, once the
Protection Registers
The device includes 17 128-bit Protection Registers, PR16 through PR0, which can be used to
increase system security or to provide identification capabilities.
PR0[63:0] are permanently programmed by Intel with a unique number for each flash device.
PR0[127:64] and PR1 through PR16 are one-time programmable (OTP) and available for the
customer to program. Once programmed, the user-programmable registers can be locked to prevent
further programming.
protection register is locked, the entire user segment is locked and no more user bits may be
programmed.
0x109
0x102
0x8A
0x91
0x89
0x88
0x85
0x84
0x81
0x80
15 14 13 12 11 10 9
15 14 13 12 11 10 9
PR16
PR1
PR0
Intel Factory-Programmed
(User-Programmable)
(User-Programmable)
User-Programmable
PR Lock Register 1
PR Lock Register 0
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0
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