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Using a Supervisory Circuit to Turn a Conventional SRAM into Fast Non-Volatile Memory - Technical Articles
TPS3613-01: procedure for battery backup application - Power management forum - Power management - TI E2E support forums
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Clyde Shaffer's Homemade 6502 GameTank Console Gets a New Cartridge with Battery-Backed SRAM - Hackster.io
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circuit analysis - Voltage on battery-backed SRAM somehow higher than both battery and regulated supply - Electrical Engineering Stack Exchange
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