RC28F320J3D75B Numonyx - A DIVISION OF MICRON SEMICONDUCTOR PRODUCTS, INC., RC28F320J3D75B Datasheet - Page 56

• Manufacturer Part Number: RC28F320J3D75B
• Description: IC FLASH 32MBIT 75NS 64EZBGA
• Manufacturer: Numonyx - A DIVISION OF MICRON SEMICONDUCTOR PRODUCTS, INC.
• Series: -r

Specifications of RC28F320J3D75B

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 32M (4Mx8, 2Mx16)
• Speed: 75ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-EZBGA
• Lead Free Status / Rohs Status: Contains lead / RoHS non-compliant
• Other names: 872859; 872859TR; 872859TR; RC28F320J3D75 S L8QS; RC28F320J3D75B; RC28F320J3D75BTR

Figure 26: Clear Lock-Bit Flowchart
Datasheet
56
FULL STATUS CHECK PROCEDURE
Read Status Register
Clear Block Lock-Bits
Read Status Register
Clear Block Lock-Bits
Data (See Above)
Check if Desired
Full Status
Successful
Write D0H
Write 60H
Complete
SR.4,5 =
SR.7 =
SR.3 =
SR.5 =
Start
0
0
0
1
0
1
1
1
Clear Block Lock-Bits
Command Sequence
Voltage Range Error
Error
Error
Write FFH after the clear lock-bits operation to place device in read
array mode.
SR.5, SR.4, and SR.3 are only cleared by the Clear Status Register
command.
If an error is detected, clear the status register before attempting retry
or other error recovery.
Operation
Operation
Numonyx™ Embedded Flash Memory (J3 v D, Monolithic)
Standby
Standby
Standby
Standby
Write
Write
Read
Bus
Bus
Lock-Bits Confirm
Command
Lock-Bits Setup
Clear Block or
Clear Block
Command
Check SR.3
1 = Programming Voltage Error
Check SR.4, 5
Both 1 = Command Sequence
Check SR.5
1 = Clear Block Lock-Bits Error
Error
Detect
Data = 60H
Addr = X
Data = D0H
Addr = X
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Comments
Comments
December 2007
316577-06