FM3104/16/64/256
Pin Configuration
Pin Name
CNT1, CNT2
A0, A1
Function
Event Counter Inputs
Device Select inputs
Clock Calibration and Early
Power-Fail Output
Reset Input/Output
Early Power-fail Input
Crystal Connections
Serial Data
VDD
SCL
SDA
X2
1
2
14
13
CNT1
CNT2
A0
CAL/PFO
3
4
12
11
/RST
PFI
A1
X1, X2
SDA
SCL
5
6
7
10
9
X1
CAL/PFO
Serial Clock
PFI
RST
VSS
VBAK
VDD
VSS
Battery-Backup Supply
Supply Voltage
8
VBAK
Ground
Ordering Information
Base Configuration Memory Size Operating Voltage Reset Threshold
Ordering Part Number
FM31256-G
FM3164-G
FM31256
FM3164
FM3116
FM3104
256Kb
64Kb
16Kb
4Kb
2.7-5.5V
2.7-5.5V
2.7-5.5V
2.7-5.5V
2.6V, 2.9, 3.9, 4.4V
2.6V, 2.9, 3.9, 4.4V
2.6V, 2.9, 3.9, 4.4V
2.6V, 2.9, 3.9, 4.4V
FM3116-G
FM3104-G
Other memory configurations may be available. Please contact the factory for more information.
Rev. 3.2
July 2010
Page 2 of 25
RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
