RC28F256K3C120 NUMONYX, RC28F256K3C120 Datasheet - Page 76

• 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
76
Figure 31. Protection Register Programming Flowchart
FULL STATUS CHECK PROCEDURE
Write Protect. Register
Read Status Register
Read Status Register
Program Successful
Program Complete
Data (See Above)
Check if Desired
(Protection Reg.
Program Setup)
Address/Data
SR.3, SR.4 =
SR.1, SR.4 =
SR.1, SR.4 =
Write 0xC0
Full Status
SR.7 = 1?
Start
Yes
No
1,1
0,1
1,1
Protection Register
Programming Error
V
Program Attempt
Locked-Register
PEN
Aborted
Range Error
Protection Program operations can only be addressed within the protection
register address space. Addresses outside the defined space will return an
error.
Repeat for subsequent programming operations.
SR Full Status Check can be done after each program or after a sequence of
program operations.
W rite FFH after the last program operation to reset device to read array mode.
SR.3 MUST be cleared, if set during a program attempt, before further
attempts are allowed by the Write State Machine.
SR.1, SR.3 and SR.4 are only cleared by the Clear Staus Register Command,
in cases of multiple protection register program operations before full status is
checked.
If an error is detected, clear the status register before attempting retry or other
error recovery.
Bus Operation
Bus Operation
Standby
Standby
Standby
Standby
W rite
W rite
Read
Protection Program
Protection Program
Command
Command
Setup
SR.1 SR.3 SR.4
Data = Data to Program
Addr = Location to Program
Status Register Data Toggle
CE# or OE# to Update Status
Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Data = 0xC0
0
0
1
1
0
0
Comments
Comments
1
1
1
V
Prot. Reg.
Prog. Error
Register
Locked:
Aborted
PEN
Low
Datasheet