ATMEGA32U4-MU Atmel, ATMEGA32U4-MU Datasheet - Page 256

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ATMEGA32U4-MU

Manufacturer Part Number
ATMEGA32U4-MU
Description
MCU AVR 32K FLASH 16MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA32U4-MU

Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
26
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN
Package
44QFN EP
Device Core
AVR
Family Name
ATmega
Maximum Speed
16 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
26
Interface Type
EBI/I2S/SPI/TWI/USART/USB
On-chip Adc
12-chx10-bit
Number Of Timers
5
For Use With
ATSTK524 - KIT STARTER ATMEGA32M1/MEGA32C1ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ATMEGA32U4-16MU
ATMEGA32U4-16MU

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA32U4-MUR
Manufacturer:
UCC
Quantity:
1 001
21.4
21.5
7766F–AVR–11/10
Crystal-less operation
Design guidelines
Figure 21-6. Typical Self powered application with 3.0V to 3.6 I/O
To reduce external components count and BOM cost, the USB module can be configured to
operate in low-speed mode with internal RC oscillator as input source clock for the PLL. The
internal RC oscillator is factory calibrated to satisfy the USB low speed frequency accuracy
within the 0°C and -40°C temperature range.
For USB full-speed operation only external crystal oscillator or external source clock can be
used.
• Serial resistors on USB Data lines must have 22 Ohms value (
• Traces from the input USB receptable (or from the cable connection in the case of a tethered
• Voltage transient / ESD suppressors may also be used to prevent USB pads to be damaged
• U
• A 10µF capacitor is highly recommended on VBUS line
device) to the USB microcontroller pads should be as short as possible, and follow differential
traces routing rules (same length, as near as possible, avoid via accumulation).
by external disturbances.
cap
capacitor should be 1µF (
VBUS
UVSS
UDP
UDM
UID
Rs=22
Rs=22
1µF
+/-
10%) for correct operation.
UCAP
VBUS
UGND
D+
D-
UID
UVCC
XTAL1
XTAL2
AVCC
GND
VCC
GND
ATmega16/32U4
+/-
5%).
External 3.0V - 3.6V
Power Supply
256

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