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MB91F467DB Datasheet(PDF) 3 Page - Fujitsu Component Limited. |
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MB91F467DB Datasheet(HTML) 3 Page - Fujitsu Component Limited. |
3 / 140 page MB91460D Series DS07-16612-2E 3 (Continued) • Real-time clock • Low-power consumption modes : Sleep/stop mode function • Supply Supervisor: Low voltage detection circuit for external VDD5 and internal 1.8V core voltage • Clock supervisor Monitors the sub-clock (32 kHz) and the main clock (4 MHz) , and switches to a recovery clock (CR oscillator, etc.) when the oscillations stop. • Clock modulator • Clock monitor • Sub-clock calibration Corrects the real-time clock timer when operating with the 32 kHz or CR oscillator • Main oscillator stabilization timer Generates an interrupt in sub-clock mode after the stabilization wait time has elapsed on the 23-bit stabilization wait time counter • Sub-oscillator stabilization timer Generates an interrupt in main clock mode after the stabilization wait time has elapsed on the 15-bit stabilization wait time counter 3. Package and technology • Package : QFP-208 •CMOS 0.18 μm technology • Power supply range 3 V to 5 V (1.8 V internal logic provided by a step-down voltage converter) • Operating temperature range: between − 40°C and + 105°C |
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