AT25DF321A-SH-B Atmel, AT25DF321A-SH-B Datasheet - Page 39

• Manufacturer Part Number: AT25DF321A-SH-B
• Description: IC FLASH 32MBIT 100MHZ 8SOIC
• Manufacturer: Atmel

Specifications of AT25DF321A-SH-B

• Format - Memory: FLASH
• Memory Type: DataFLASH
• Memory Size: 32M (16384 pages x 256 Bytes)
• Speed: 100MHz
• Interface: SPI, RapidS
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
• Memory Configuration: 16384 Pages X 256 Bytes
• Interface Type: Serial, SPI
• Clock Frequency: 100MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SOIC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3686D–DFLASH–12/09
12.4
Figure 12-3. Deep Power-Down
Resume from Deep Power-Down
In order to exit the Deep Power-Down mode and resume normal device operation, the Resume from Deep Power-Down
command must be issued. The Resume from Deep Power-Down command is the only command that the device will
recognized while in the Deep Power-Down mode.
To resume from the Deep Power-Down mode, the CS pin must first be asserted and opcode of ABh must be clocked into
the device. Any additional data clocked into the device after the opcode will be ignored. When the CS pin is deasserted, the
device will exit the Deep Power-Down mode within the maximum time of t
device has returned to the standby mode, normal command operations such as Read Array can be resumed.
If the complete opcode is not clocked in before the CS pin is deasserted, or if the CS pin is not deasserted on an even byte
boundary (multiples of eight bits), then the device will abort the operation and return to the Deep Power-Down mode.
Figure 12-4. Resume from Deep Power-Down
SCK
SCK
SO
SO
CS
I
CS
I
CC
CC
SI
SI
Standby Mode Current
Deep Power-Down Mode Current
HIGH-IMPEDANCE
HIGH-IMPEDANCE
MSB
MSB
1
1
0
0
Active Current
Active Current
0
0
1
1
1
1
2
2
OPCODE
OPCODE
1
0
3
3
1
1
4
4
0
0
5
5
Deep Power-Down Mode Current
0
1
6
6
1
1
7
7
Standby Mode Current
t
t
RDPD
EDPD
RDPD
and return to the standby mode. After the
Atmel AT25DF321A
39