FM3164-G Ramtron, FM3164-G Datasheet - Page 20

• Manufacturer Part Number: FM3164-G
• Description: NVRAM Memory IC - MCU Companion
• Manufacturer: Ramtron

Specifications of FM3164-G

• Memory Size: 64Kbit
• Ic Interface Type: 2 Wire, Serial
• Supply Voltage Range: 2.7V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 14
• Operating Temperature Range: -40°C To +85°C
• Threshold Voltage: 4.4V
• Number Of Voltages Monitored: 4
• Monitored Voltage: 2.6 V, 2.9 V, 3.9 V, 4.4 V
• Output Type: Active Low, Open Drain
• Manual Reset: Resettable
• Watchdog: Watchdog
• Battery Backup Switching: Backup
• Power-up Reset Delay (typ): 200 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Supply Current (typ): 1500 uA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-14
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Addressing FRAM Array in the FM31xx Family
The FM31xx family includes 256Kb, 64Kb, 16Kb, and 4Kb memory densities. The following 2-byte address field is
shown for each density.
Table 4. Two-Byte Memory Address
Rev. 2.0
Jan. 2011
Part #
By Master
By FM31xxx
By FM31xx
By Master
FM31256
FM3164
FM3116
FM3104
2- Although not required, it is recommended that A5-A7 in the Register Address byte are zeros in
Start
S
Slave Address
Start
x
x
x
x
S
A14
x
x
x
0
A
Slave Address
A13
order to preserve compatibility with future devices.
x
x
x
Figure 18. Selective (Random) Memory Read
Address MSB
1
Address
st
Address Byte
A12
A12
x
x
Figure 19. Byte Register Write
A11
A11
x
x
0
A
A
A10
A10
A10
x
Address LSB
0 0 0
Acknowledge
Address & Data
A9
A9
A9
x
A8
A8
A8
A8
Address
A
Start
S
A7
A7
A7
A7
Acknowledge
Slave Address
Address
A6
A6
A6
A6
A
A5
A5
A5
A5
2
nd
1
Address Byte
A
Data Byte
A4
A4
A4
A4
A3
A3
A3
A3
Data Byte
FM3104/16/64/256
Data
A2
A2
A2
A2
Acknowledge
A1
A1
A1
A1
Page 20 of 26
No
A
1 P
A0
A0
A0
A0
P
Stop
Stop