MX29LV640BU Macronix International, MX29LV640BU Datasheet - Page 24

• Manufacturer Part Number: MX29LV640BU
• Description: 64M-BIT [4M x 16] CMOS EQUAL SECTOR FLASH MEMORY
• Manufacturer: Macronix International

www.DataSheet4U.com
WRITE OPERATION STATUS
The device provides several bits to determine the status
of a write operation: Q2, Q3, Q5, Q6, Q7, and RY/BY#.
Table 5 and the following subsections describe the func-
tions of these bits. Q7, RY/BY#, and Q6 each offer a
Table 5. Write Operation Status
P/N:PM1081
Notes:
1. Performing successive read operations from the erase-suspended sector will cause Q2 to toggle.
2. Performing successive read operations from any address will cause Q6 to toggle.
3. Reading the word address being programmed while in the erase-suspend program mode will indicate logic "1" at the
In Progress
Exceeded
Time Limits
Q2 bit.
However, successive reads from the erase-suspended sector will cause Q2 to toggle.
Status
Word Program in Auto Program Algorithm
Auto Erase Algorithm
Erase Suspended Mode
Word Program in Auto Program Algorithm
Erase Suspend Program
Auto Erase Algorithm
Erase Suspend Read
(Erase Suspended Sector)
Erase Suspend Read
(Non-Erase Suspended Sector)
Erase Suspend Program
24
method for determining whether a program or erase op-
eration is complete or in progress. These three bits are
discussed first.
MX29LV640BU
Note1
Data
Q7#
Q7#
Q7#
Q7#
Q7#
0
1
0
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Data
Q6
No
Note2
Data
Q5
0
0
0
0
1
1
1
Data Data
N/A
N/A Toggle
N/A
N/A
N/A
Q3
1
1
REV. 1.0, MAR. 08, 2005
Toggle
Toggle
Toggle
Toggle
N/A
N/A
Q2
No
No
RY/BY#
0
0
1
1
0
0
0
0