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