MX28F640C3T Macronix International, MX28F640C3T Datasheet - Page 31

• Manufacturer Part Number: MX28F640C3T
• Description: 64M-BIT [4M x16] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY
• Manufacturer: Macronix International

Figure 6. Automated Word Programming Flowchart
P/N:PM0900
FULL STATUS CHECK PROCEDURE
Program Address/Data
Read Status Register
Read Status Register
Program Successful
Program Ccomplete
Data(See Above)
Check if Desired
Full Status
Write 40H
SR.7=1 ?
SR.3=
SR.4=
SR.1=
Start
Yes
0
0
0
No
1
1
1
Locked Block- Aborted
Attempted Program to
Programming Error
VPP Range Error
31
Bus
Operation
Write
Write
Read
Standby
Repeat for subsequent programming operations.
SR full status check can be done after each program
or after a sequence of program operations.
Write FFH after the last program operation to reset
device to read array mode.
Bus
Operation
Standby
Standby
Standby
SR.3 MUST be cleared, if set during a program at-
tempt, before further attempts are allowed by the Write
State Machine.
SR.4, SR.3, and SR.1 are only cleared by the Clear
Status Register Command, in cases where multiple
programmed before full status is checked.
If an error is detected, clear the status register before
attempting retry or other error recovery.
MX28F640C3T/B
Command
Program
Setup
Program
Command
Comments
Data=40H
Data=Data to Program
Addr=Location to Program
Status Register Data Toggle
CE or OE to Update Status
Register Data
1=WSM Ready
0=WSM Busy
Check SR.7
Comments
1=VPP Low Detect
1=VPP Program Detect
1=Attempted Program to
Locked Sector-Program
Aborted
Check SR.3
Check SR.4
Check SR.11
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REV. 0.6, AUG. 20, 2003