AT25DF641-S3H-T Atmel, AT25DF641-S3H-T Datasheet - Page 20

• Manufacturer Part Number: AT25DF641-S3H-T
• Description: IC FLASH 64MBIT 100MHZ 16SOIC
• Manufacturer: Atmel

Specifications of AT25DF641-S3H-T

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 64M (32K pages x 256 bytes)
• Speed: 100MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.6.
20
Figure 7-7.
Program/Erase Resume
The Program/Erase Resume command allows a suspended program or erase operation to be resumed and
continue programming a Flash page or erasing a Flash memory block where it left off. As with the Program/Erase
Suspend command, the Write Enable command does not need to be issued prior to the Program/Erase Resume
command being issued. Therefore, the Program/Erase Resume command operates independently of the state of
the WEL bit in the Status Register.
To perform a Program/Erase Resume, the
into the device. No address bytes need to be clocked into the device, and any data clocked in after the opcode
will be ignored. When the
resumed within a time of t
“0” state to indicate that the program or erase operation is no longer suspended. In addition, the RDY/BSY bit in
the Status Register will indicate that the device is busy performing a program or erase operation. The complete
opcode must be clocked into the device before the
an even byte boundary (multiples of eight bits); otherwise, no resume operation will be performed.
During a simultaneous Erase Suspend/Program Suspend condition, issuing the Program/Erase Resume
command will result in the program operation resuming first. After the program operation has been completed, the
Program/Erase Resume command must be issued again in order for the erase operation to be resumed.
While the device is busy resuming a program or erase operation, any attempts at issuing the Program/Erase
Suspend command will be ignored. Therefore, if a resumed program or erase operation needs to be subsequently
suspended again, the system must either wait the entire t
command, or it must check the status of the RDY/BSY bit or the appropriate PS or ES bit in the Status Register to
determine if the previously suspended program or erase operation has resumed.
Atmel AT25DF641
SCK
SO
CS
SI
Program/Erase Suspend
MS B
HIG H-IMP E DANC E
1
0
0
1
1
RES
2
OP C ODE
CS
1
. The PS bit or the ES bit in the Status Register will then be reset back to the logical
3
0
4
pin is deasserted, the program or erase operation currently suspended will be
0
5
0
6
0
7
CS
pin must first be asserted and the opcode of D0h must be clocked
CS
pin is deasserted, and the
RES
time before issuing the Program/Erase Suspend
CS
pin must be deasserted on
3680F–DFLASH–4/10