RC28F256K3C120 NUMONYX, RC28F256K3C120 Datasheet - Page 74

• 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
74
Figure 29. Block Erase Flowchart
FULL STATUS CHECK PROCEDURE
Block Erase Complete
Read Status Register
Read Status Register
Data (See Above)
Check if Desired
Write 0xD0 and
Block Address
Block Address
Block Erase
Write 0x20
Successful
Full Status
SR.4,5 =
SR.7 =
SR.3 =
SR.5 =
SR.1 =
Start
1
0
0
0
0
0
1
1
1
1
Locked Block - Aborted
Command Sequence
Attempted Erase of
Suspend Erase
V
Block Erase Error
No
PEN
Range Error
Error
Erase Loop
Yes
Suspend
Repeat for subsequent block erasures.
Full Status Check can be done after each block erase or after a
sequence of block erasures.
W rite FFH after the last write operation to reset device to read array
mode.
SR. 1 and 3 MUST be cleared, if set during an erase attempt, before
further attempts are allowed by the Write State Machine.
SR.1, 3, 4, 5 are only cleared by the Clear Staus Register Command, in
cases where multiple blocks are erased 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
Standby
Write
Write
Read
Erase Confirm
Erase Setup
Command
Command
Addr = Within Block to Be
Erased
Data = 0xD0
Addr = Within Block to Be
Erased
Status Register Data Toggle
CE# or OE# to Update Status
Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Check SR.3
1 = V
Check SR.4,5
Both 1 = Command Sequence
Error
Check SR.5
1 = Block Erase Error
Check SR.1
1 = Attempted Erase of Locked
Block - Erase Aborted
Data = 0x20
PEN
Low Detect
Comments
Comments
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