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32-bit ARM Cortex^TM-M4 - NuMicro® Family

M4521 USB Series

Chip	Description	Application Flash	SRAM	Data Flash	Loader Flash	Programm. methods	Clock frequency	Supply voltage [V]	Operating temperature [°C]	Package	Status *
M4521LE6AE	operating frequency up to 72 MHz programmable system clock source 2 external crystal oscillators and 2 internal RC oscillators PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC 8-channel PDMA up to 35 I/O pins 4 x 32-bit timers Watchdog RTC interfaces: 4 x UART (supporting IrDA and RS-485 function), SC (ISO-7816-3), 2 x SPI, 2 x I²C, EBI, USB FS Host and FS Device 10-ch 16-bit PWM 10-ch 12-bit ADC temperature sensor with 1 °C resolution tamper detection LDO regulator Power-on Reset (POR) Low Voltage Reset (LVR) 4-level Brown-out Detector (BOD) with Reset function	128 KB	32 KB	configurable	4 KB	ISP IAP ICP	Ext. crystal: 4 - 24 MHz & 32.768 kHz Int. RC: 22.1184 MHz & 10 kHz	2.5 – 5.5	-40 – +105	LQFP-48	P
M4521SE6AE	operating frequency up to 72 MHz programmable system clock source 2 external crystal oscillators and 2 internal RC oscillators PLL controller (the source of system clock up to 144 MHz) sourced from 2 high speed oscillators: crystal or RC 8-channel PDMA up to 49 I/O pins 4 x 32-bit timers Watchdog RTC interfaces: 5 x UART (supporting IrDA and RS-485 function), SC (ISO-7816-3), 2 x SPI, 2 x I²C, EBI, USB FS Host and FS Device 12-ch 16-bit PWM 16-ch 12-bit ADC temperature sensor with 1 °C resolution tamper detection LDO regulator Power-on Reset (POR) Low Voltage Reset (LVR) 4-level Brown-out Detector (BOD) with Reset function	128 KB	32 KB	configurable	4 KB	ISP IAP ICP	Ext. crystal: 4 - 24 MHz & 32.768 kHz Int. RC: 22.1184 MHz & 10 kHz	2.5 – 5.5	-40 – +105	LQFP-64	P

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