FM24V05_10 RAMTRON [Ramtron International Corporation], FM24V05_10 Datasheet - Page 7

• Manufacturer Part Number: FM24V05_10
• Description: 512Kb Serial 3V F-RAM Memory
• Manufacturer: RAMTRON [Ramtron International Corporation]

By FM24V05
By Master
issues a start condition. This simultaneously aborts
the write operation and allows the read command to
Rev. 2.0
May 2010
By FM24V05
By Master
By FM24V05
Start
By Master
S
By FM24V05
By Master
Start
S
0
Slave Address
0
Start
By FM24V05
S
By Master
0
HS-mode command
Start
0
S
0
0
0
1
A
Slave Address
0
HS-mode command
X
Start
Address
S
Address MSB
0
Figure 10. HS-mode Current Address Read
Address
X
1
X
Acknowledge
Figure 9. Selective (Random) Read
Figure 11. HS-mode Byte Write
Slave Address
Figure 7. Current Address Read
Acknowledge
X
Enter HS-mode
No
Address
1
1
Figure 8. Sequential Read
Start &
X
A
S
A
X
Acknowledge
Slave Address 0
Acknowledge
Enter HS-mode Address
Address LSB
No
1
Acknowledge
Data Byte
1
Start &
S
A
Slave Address 1
be issued with the slave address LSB set to a ‘1’. The
operation is now a current address read.
A
Acknowledge
Data Byte
A
Data
Start
Address MSB
S
A
Data
Acknowledge
Slave Address
A
Acknowledge
Address
Address & Data
Data Byte
No
Data Byte
1
A
Data
P
Acknowledge
1
FM24V05 - 512Kb I2C FRAM
Address LSB
Acknowledge
A
Acknowledge
No
No
1
1 P
Stop
Data Byte
P
Data
Stop &
Exit HS-mode
A
Acknowledge
Data Byte
Stop
No
1 P
Page 7 of 16
Stop
Exit HS-mode
A P
Stop &