Microcontrollers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	DigiKey Programmable	Core Processor	Core Size	Speed	Connectivity	Peripherals	Number of I/O	Program Memory Size	Program Memory Type	EEPROM Size	RAM Size	Voltage - Supply (Vcc/Vdd)	Data Converters	Oscillator Type	Operating Temperature	Mounting Type	Supplier Device Package	Package / Case
AT91R40008-66AU IC MCU 16/32BIT ROMLESS 100LQFP Microchip Technology	1,420 In Stock	1 : £10.59000 Tray	AT91	Tray	Active	Not Verified	ARM7®	16/32-Bit	66MHz	EBI/EMI, UART/USART	POR, WDT	32	-	ROMless	-	256K x 8	1.65V ~ 1.95V	-	External	-40°C ~ 85°C (TA)	Surface Mount	100-LQFP (14x14)	100-LQFP
AT91RM9200-QU-002 IC MCU 32BIT 128KB ROM 208PQFP Microchip Technology	615 In Stock	1 : £20.45000 Tray	AT91	Tray	Active	Not Verified	ARM920T	16/32-Bit	180MHz	EBI/EMI, Ethernet, I2C, Memory Card, SPI, SSC, UART/USART, USB	POR	122	128KB (128K x 8)	ROM	-	48K x 8	1.65V ~ 1.95V	-	Internal	-40°C ~ 85°C (TA)	Surface Mount	208-PQFP (28x28)	208-BFQFP
LPC2364FBD100K IC MCU 16/32B 128KB FLSH 100LQFP NXP USA Inc.	443 In Stock	1 : £11.33000 Tray	LPC2300	Tray	Active	Not Verified	ARM7®	16/32-Bit	72MHz	CANbus, Ethernet, I2C, Microwire, SPI, SSI, SSP, UART/USART, USB	Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT	70	128KB (128K x 8)	FLASH	-	34K x 8	3V ~ 3.6V	A/D 6x10b SAR; D/A 1x10b	Internal	-40°C ~ 85°C (TA)	Surface Mount	100-LQFP (14x14)	100-LQFP
AT91M42800A-33AU IC MCU 16/32BIT ROMLESS 144LQFP Microchip Technology	138 In Stock	1 : £9.70000 Tray	AT91	Tray	Active	Not Verified	ARM7®	16/32-Bit	33MHz	EBI/EMI, SPI, UART/USART	WDT	54	-	ROMless	-	8K x 8	2.7V ~ 3.6V	-	External	-40°C ~ 85°C (TA)	Surface Mount	144-LQFP (20x20)	144-LQFP

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Microcontroller products are relatively complex, user-programmable digital logic devices. Closely related to devices considered microprocessors, the distinction between the two reduces largely to the manufacturer's choice of noun, though by tradition microcontrollers integrate working memory, are more likely to incorporate mixed-signal peripherals and tend to be used with simpler software paradigms oriented toward repetitive execution of a predefined series of tasks.