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Comparison

ATMEGA640-16AU vs ATMEGA1280-16AU

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Mfr. Part #	ATMEGA640-16AU	ATMEGA1280-16AU
Manufacturer	Microchip Technology	Microchip Technology
Description	MCU 8-bit ATmega AVR RISC 64KB Flash 3.3V/5V 100-Pin TQFP	MICROCHIP - ATMEGA1280-16AU - MICROCONTROLLER MCU, 8 BIT, ATMEGA, 16MHZ, TQFP-100
Datasheet
RoHS
Specifications
Factory Lead Time	8 Weeks	7 Weeks
Contact Plating	Tin	Tin
Mount	Surface Mount	Surface Mount
Mounting Type	Surface Mount	Surface Mount
Package / Case	100-TQFP	100-TQFP
Number of Pins	100	100
Data Converters	A/D 16x10b	A/D 16x10b
Memory Types	EEPROM, FLASH	-
Number of I/Os	86	86
Watchdog Timers	Yes	Yes
Operating Temperature	-40°C~85°C TA	-40°C~85°C TA
Packaging	Tray	Tray
Series	AVR® ATmega	AVR® ATmega
Published	2007	2007
JESD-609 Code	e3	e3
Pbfree Code	yes	yes
Part Status	Active	Active
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
Number of Terminations	100	100
Termination	SMD/SMT	SMD/SMT
Voltage - Supply	5V	2.7V~5.5V
Terminal Position	QUAD	QUAD
Terminal Form	GULL WING	GULL WING
Peak Reflow Temperature (Cel)	260	260
Terminal Pitch	0.5mm	0.5mm
Frequency	16MHz	16MHz
Time@Peak Reflow Temperature-Max (s)	40	40
Base Part Number	ATMEGA640	ATMEGA1280
Power Supplies	3/5V	3/5V
Interface	2-Wire, EBI/EMI, I2C, SPI, UART, USART	2-Wire, EBI/EMI, I2C, SPI, UART, USART
Memory Size	64kB	128kB
Oscillator Type	Internal	Internal
RAM Size	8K x 8	8K x 8
uPs/uCs/Peripheral ICs Type	MICROCONTROLLER, RISC	MICROCONTROLLER, RISC
Number of Bits	8	8
Core Processor	AVR	AVR
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Type	FLASH	FLASH
Core Size	8-Bit	8-Bit
Program Memory Size	64KB 32K x 16	128KB 64K x 16
Connectivity	EBI/EMI, I2C, SPI, UART/USART	EBI/EMI, I2C, SPI, UART/USART
Bit Size	8	8
Access Time	16 μs	16 μs
Has ADC	YES	YES
DMA Channels	NO	NO
Data Bus Width	8b	8b
PWM Channels	YES	YES
Number of Timers/Counters	6	6
Density	512 kb	1 Mb
EEPROM Size	4K x 8	4K x 8
Number of ADC Channels	16	16
Voltage - Supply (Max)	5.5V	5.5V
Voltage - Supply (Min)	4.5V	4.5V
Number of I2C Channels	1	1
Height	1.05mm	1.05mm
Length	14.1mm	14.1mm
Width	14.1mm	14.1mm
REACH SVHC	No SVHC	No SVHC
Radiation Hardening	No	No
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Lead Free	Lead Free	Lead Free
Pricing(USD)
Grads Price	Quantity Unit Price 1+ $9.1065 10+ $8.59104 100+ $8.10475 500+ $7.64599 1000+ $7.2132	Quantity Unit Price 1+ $13.94004 10+ $13.15098 100+ $12.40659 500+ $11.70433 1000+ $11.04182
Availability	5	2700
Price	$9.1065	$13.94004
Quantity