ATMEGA32U4-AU datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > The embedded processor and controller> Microcontrollers and processors> ATMEGA32U4-AU

ATMEGA32U4-AU: Description8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP44; CategoryThe embedded processor and controller Microcontrollers and processors; File Size4MB，408 Pages; ManufacturerAtmel (Microchip); Environmental Compliance

Download Datasheet Parametric Compare View All

ATMEGA32U4-AU Online Shopping

Suppliers	Part Number	Price	MOQ	In stock
	ATMEGA32U4-AU	-	-	View	Buy Now

ATMEGA32U4-AU Overview

8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP44

ATMEGA32U4-AU Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Atmel (Microchip)
Parts packaging code	QFP
package instruction	TQFP, TQFP44,.47SQ,32
Contacts	44
Reach Compliance Code	compli
ECCN code	EAR99
Factory Lead Time	1 week
core architecture	AVR
Device core	AVR
clock speed	16
Memory	2.5
flash memory	32
were able	0
Adc channel	12
ADC resolution	10
Samacsys Descripti	MCU AVR 32K FLASH 16MHZ 44-TQFP Atmel ATMEGA32U4-AU, 8bit AVR Microcontroller, 16MHz, 1 kB, 32 kB Flash, 44-Pin TQFP
Has ADC	YES
Other features	ALSO OPERATES AT 8 MHZ WITH A MINIMUM SUPPLY OF 2.7V
Address bus width
bit size	8
CPU series	AVR RISC
maximum clock frequency	16 MHz
DAC channel	NO
DMA channel	NO
External data bus width
JESD-30 code	S-PQFP-G44
length	10 mm
Number of I/O lines	26
Number of terminals	44
On-chip program ROM width	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
PWM channel	YES
Package body material	PLASTIC/EPOXY
encapsulated code	TQFP
Encapsulate equivalent code	TQFP44,.47SQ,32
Package shape	SQUARE
Package form	FLATPACK, THIN PROFILE
power supply	3/5 V
Certification status	Not Qualified
RAM (bytes)	2560
rom(word)	16384
ROM programmability	FLASH
Maximum seat height	1.2 mm
speed	16 MHz
Maximum slew rate	15 mA
Maximum supply voltage	5.5 V
Minimum supply voltage	4.5 V
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
width	10 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER, RISC

Preview

Download Datasheet

View All

Features

•

High Performance, Low Power AVR

8-Bit Microcontroller

•

Advanced RISC Architecture

– 135 Powerful Instructions – Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Fully Static Operation

– Up to 16 MIPS Throughput at 16 MHz

– On-Chip 2-cycle Multiplier

Non-volatile Program and Data Memories

– 16/32K Bytes of In-System Self-Programmable Flash (ATmega16U4/ATmega32U4)

– 1.25/2.5K Bytes Internal SRAM (ATmega16U4/ATmega32U4)

– 512Bytes/1K Bytes Internal EEPROM (ATmega16U4/ATmega32U4)

– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM

– Data retention: 20 years at 85°C/ 100 years at 25°C

(1)

– Optional Boot Code Section with Independent Lock Bits

In-System Programming by On-chip Boot Program hardware activated after

reset

True Read-While-Write Operation

All supplied parts are preprogramed with a default USB bootloader

– Programming Lock for Software Security

JTAG (IEEE std. 1149.1 compliant) Interface

– Boundary-scan Capabilities According to the JTAG Standard

– Extensive On-chip Debug Support

– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface

USB 2.0 Full-speed/Low Speed Device Module with Interrupt on Transfer Completion

– Complies fully with Universal Serial Bus Specification Rev 2.0

– Supports data transfer rates up to 12 Mbit/s and 1.5 Mbit/s

– Endpoint 0 for Control Transfers: up to 64-bytes

– 6 Programmable Endpoints with IN or Out Directions and with Bulk, Interrupt or

Isochronous Transfers

– Configurable Endpoints size up to 256 bytes in double bank mode

– Fully independent 832 bytes USB DPRAM for endpoint memory allocation

– Suspend/Resume Interrupts

– CPU Reset possible on USB Bus Reset detection

– 48 MHz from PLL for Full-speed Bus Operation

– USB Bus Connection/Disconnection on Microcontroller Request

Peripheral Features

– On-chip PLL for USB and High Speed Timer: 32 up to 96 MHz operation

– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode

– Two 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode

– One 10-bit High-Speed Timer/Counter with PLL (64 MHz) and Compare Mode

– Four 8-bit PWM Channels

– Four PWM Channels with Programmable Resolution from 2 to 16 Bits

– Six PWM Channels for High Speed Operation, with Programmable Resolution from

2 to 11 Bits

– Output Compare Modulator

– 12-channels, 10-bit ADC (features Differential Channels with Programmable Gain)

– Programmable Serial USART with Hardware Flow Control

– Master/Slave SPI Serial Interface

•

8-bit

Microcontroller

with

16/32K Bytes of

ISP Flash

and USB

Controller

ATmega16U4

ATmega32U4

•

Preliminary

•

7766D–AVR–01/09

ATmega16U4/ATmega32U4

channels 10-bit ADC with optional differential input stage with programmable gain, an on-chip

calibrated temperature sensor, a programmable Watchdog Timer with Internal Oscillator, an SPI

serial port, IEEE std. 1149.1 compliant JTAG test interface, also used for accessing the On-chip

Debug system and programming and six software selectable power saving modes. The Idle

mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system

to continue functioning. The Power-down mode saves the register contents but freezes the

Oscillator, disabling all other chip functions until the next interrupt or Hardware Reset. The ADC

Noise Reduction mode stops the CPU and all I/O modules except ADC, to minimize switching

noise during ADC conversions. In Standby mode, the Crystal/Resonator Oscillator is running

while the rest of the device is sleeping. This allows very fast start-up combined with low power

consumption.

The device is manufactured using ATMEL’s high-density nonvolatile memory technology. The

On-chip ISP Flash allows the program memory to be reprogrammed in-system through an SPI

serial interface, by a conventional nonvolatile memory programmer, or by an On-chip Boot pro-

gram running on the AVR core. The boot program can use any interface to download the

application program in the application Flash memory. Software in the Boot Flash section will

continue to run while the Application Flash section is updated, providing true Read-While-Write

operation. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a

monolithic chip, the ATMEL ATmega16U4/ATmega32U4 is a powerful microcontroller that pro-

vides a highly flexible and cost effective solution to many embedded control applications.

The ATmega16U4/ATmega32U4 AVR is supported with a full suite of program and system

development tools including: C compilers, macro assemblers, program debugger/simulators, in-

circuit emulators, and evaluation kits.

2.2

2.2.1

Pin Descriptions

VCC

Digital supply voltage.

2.2.2

GND

Ground.

2.2.3

Port B (PB7..PB0)

Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The

Port B output buffers have symmetrical drive characteristics with both high sink and source

capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up

resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,

even if the clock is not running.

Port B has better driving capabilities than the other ports.

Port B also serves the functions of various special features of the ATmega16U4/ATmega32U4

as listed on

page 71.

2.2.4

Port C (PC7,PC6)

Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The

Port C output buffers have symmetrical drive characteristics with both high sink and source

capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up

resistors are activated. The Port C pins are tri-stated when a reset condition becomes active,

even if the clock is not running.

7766D–AVR–01/09

ATMEGA32U4-AU Related Products

	ATMEGA32U4-AU	ATMEGA16U4RC-AU	ATMEGA16U4RC-MU	ATMEGA16U4_10	ATMEGA32U4RC-AU	ATMEGA16U4_1
Description	8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP44	8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP44	8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQCC44	8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP44	8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP44	8-BIT, FLASH, 16 MHz, RISC MICROCONTROLLER, PQFP44
Number of terminals	44	44	44	44	44	44
Maximum operating temperature	85 °C	85 °C	85 °C	85 Cel	85 °C	85 Cel
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 Cel	-40 °C	-40 Cel
PWM channel	YES	YES	YES	Yes	YES	Yes
surface mount	YES	YES	YES	Yes	YES	Yes
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Terminal form	GULL WING	GULL WING	NO LEAD	GULL WING	GULL WING	GULL WING
Terminal location	QUAD	QUAD	QUAD	Four	QUAD	Four
Is it Rohs certified?	conform to	conform to	conform to	-	conform to	-
Parts packaging code	QFP	QFP	QFN	-	QFP	-
package instruction	TQFP, TQFP44,.47SQ,32	TQFP, TQFP44,.47SQ,32	HVQCCN, LCC44,.28SQ,20	-	TQFP, TQFP44,.47SQ,32	-
Contacts	44	44	44	-	44	-
Reach Compliance Code	compli	compli	compli	-	compli	-
core architecture	AVR	AVR	AVR	-	AVR	-
Device core	AVR	AVR	AVR	-	AVR	-
clock speed	16	16	16	-	16	-
Memory	2.5	2.1	2.1	-	2.5	-
flash memory	32	16	16	-	32	-
Adc channel	12	12	12	-	12	-
ADC resolution	10	10	10	-	10	-
Has ADC	YES	YES	YES	-	YES	-
Other features	ALSO OPERATES AT 8 MHZ WITH A MINIMUM SUPPLY OF 2.7V	ALSO OPERATES AT 8 MHZ WITH A MINIMUM SUPPLY OF 2.7V	ALSO OPERATES AT 8 MHZ WITH A MINIMUM SUPPLY OF 2.7V	-	ALSO OPERATES AT 8 MHZ WITH A MINIMUM SUPPLY OF 2.7V	-
bit size	8	8	8	-	8	-
CPU series	AVR RISC	AVR RISC	AVR RISC	-	AVR RISC	-
maximum clock frequency	16 MHz	16 MHz	16 MHz	-	16 MHz	-
DAC channel	NO	NO	NO	-	NO	-
DMA channel	NO	NO	NO	-	NO	-
JESD-30 code	S-PQFP-G44	S-PQFP-G44	S-PQCC-N44	-	S-PQFP-G44	-
length	10 mm	10 mm	7 mm	-	10 mm	-
Number of I/O lines	26	26	26	-	26	-
On-chip program ROM width	16	16	16	-	16	-
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY	-
encapsulated code	TQFP	TQFP	HVQCCN	-	TQFP	-
Encapsulate equivalent code	TQFP44,.47SQ,32	TQFP44,.47SQ,32	LCC44,.28SQ,20	-	TQFP44,.47SQ,32	-
Package shape	SQUARE	SQUARE	SQUARE	-	SQUARE	-
Package form	FLATPACK, THIN PROFILE	FLATPACK, THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	-	FLATPACK, THIN PROFILE	-
power supply	3/5 V	3/5 V	3/5 V	-	3/5 V	-
Certification status	Not Qualified	Not Qualified	Not Qualified	-	Not Qualified	-
RAM (bytes)	2560	1280	1280	-	2560	-
rom(word)	16384	8192	8192	-	16384	-
ROM programmability	FLASH	FLASH	FLASH	-	FLASH	-
Maximum seat height	1.2 mm	1.2 mm	0.9 mm	-	1.2 mm	-
speed	16 MHz	16 MHz	16 MHz	-	16 MHz	-
Maximum slew rate	15 mA	15 mA	15 mA	-	15 mA	-
Maximum supply voltage	5.5 V	5.5 V	5.5 V	-	5.5 V	-
Minimum supply voltage	4.5 V	4.5 V	4.5 V	-	4.5 V	-
Nominal supply voltage	5 V	5 V	5 V	-	5 V	-
technology	CMOS	CMOS	CMOS	-	CMOS	-
Terminal pitch	0.8 mm	0.8 mm	0.5 mm	-	0.8 mm	-
width	10 mm	10 mm	7 mm	-	10 mm	-
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER, RISC	MICROCONTROLLER, RISC	MICROCONTROLLER, RISC	-	MICROCONTROLLER, RISC	-

Recommended Resources

Things you don’t know about high-frequency transformers and EMI

Charger circuit designed by lm358

Eight-stage telecom filter circuit with feedback

CD1140CP (audio and FM receiver) FM IF amplifier circuit

Contactless AC voltage regulator circuit diagram

Universal signal generator circuit for radio recorders and televisions

Is there any software that can monitor USB data transfer?: Just like monitoring the serial port during serial debugging, thank you......; berryfan stm32/stm8

Introduction to the use of web conversion tools FCARM and makefsfile: First of all, I would like to mention the use of Keil's web conversion tool FCARM.exe, which took me several hours. TI also has a similar program, which is a Makefsfile, and the source code is open.　　...; academic Microcontroller MCU

Fluke 27-II Waterproof and Dustproof Digital Multimeter Accurate Use Method: Fluke 27-II Industrial Multimeter The new Fluke 27 II Digital Multimeter sets a new standard for making measurements in difficult situations, with superior functionality and accuracy to easily solve m...; 思维翱翔 Industrial Control Electronics

SensorTile.Box becomes bricked after firmware upgrade: SensorTile.Box becomes bricked after firmware upgrade I received the sensorTile.Box 2 weeks ago. When I first received it, I installed ST BLESENSOR4.6.3 . The Bluetooth connection was normal. It promp...; 梁泓泉 ST MEMS Sensor Creative Design Competition

Crystal oscillator problem of wireless module CC2500: Is there any relationship between the crystal oscillator (usually 26MHz) on the wireless module CC2500 and the crystal oscillator on the controller (MCU) I want to choose? Can the crystal oscillator o...; 六度分离xia Microcontroller MCU

What are the differences between smart LCD and ordinary LCD, and how are they driven differently?: What are the differences between smart LCD and ordinary LCD, and how are they driven differently?...; hezudao Embedded System

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components