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MSFIPS Datasheet(PDF) 1 Page - Mixed Signal Integration |
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MSFIPS Datasheet(HTML) 1 Page - Mixed Signal Integration |
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1 / 8 page  Description The MSFIPS integrated circuit provides 4 physical tamper switch inputs (3 with polarity control), over/under voltage detection and a temperature sensor. The MSFIPS provides the sensor inter- faces needed for the Federal Information Processing Standard (FIPS) 140. The polarity selectable inputs are intended to interface with a variety of tamper switches, The 1 kHz lowpass filters provide better noise immuni- ty than the single input available on other inter- faces. An internal bandgap reference provides an accurate comparison voltage for sensing a over- voltage or undervoltage tampering technique. Temperature variation outside of expected environ- mental conditions also will trigger an alarm. The MSFIPS operates from 2.4V up to 5.5 VDC. For battery backup, the supply switching is auto- matically done internally. The MSFIPS is available in die form and in a 24 pin SSOIC package. Temperature range is –40 to +85 oC. Features Temperature sensor Bandgap reference for under/over voltage detect Four switch inputs (Three with polarity selection) Automatic battery switchover Applications Cryptography boxes Electronic Medical Storage security Credit processing storage security Point of Sales Terminals Alarm Systems. Absolute Maximum Ratings Power Supply Voltage +6V Storage Temperature Range -60 to +150 oC Operating Temperature Range -40 to +85 oC FIPS-140 Level 4+ Security Supervisor Data Sheet 5/2011 © © 2 20 01 11 1 M Miixxeedd SSiiggnnaall IInntteeggrraattiioonn 1 1 W Weebb SSiittee ““w ww ww w..m miixx-ssiigg..ccoom m”” MRI RESETO MODE VDD SWITCH VDDI BATTERY LOW OUT POWER FAILURE IN VDDO VBAT POWER FAIL OUT TAMPER1 IN VBG TAMPER1 POL TAMPER2 IN TAMPER2 POL TAMPER3 IN SECURITY ALARM OUTPUT TAMPER3 POL TAMPER4 IN+ TLOW TOUT THI VSS BANDGAP REFERENCE TEMPERATURE SENSOR BATTERY SWITCH OVER RESET COMPARE and DELAY 1kHz Lowpass Filter 1kHz Lowpass Filter 1kHz Lowpass Filter 1kHz Lowpass Filter Figure 1 - Block Diagram |
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Similar Description - MSFIPS |
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