ATMEGA32U4-MU Atmel, ATMEGA32U4-MU Datasheet - Page 264

no-image

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
7766F–AVR–11/10
• 5 – FRZCLK: Freeze USB Clock Bit
Set to disable the clock inputs (the ”Resume Detection” is still active). This reduces the power
consumption. Clear to enable the clock inputs.
• 4 – OTGPADE: VBUS Pad Enable
Set to enable the VBUS pad. Clear to disable the VBUS pad.
Note that this bit can be set/cleared even if USBE=0. That allows the VBUS detection even if the
USB macro is disable.
• 3-1 – Reserved
The value read from these bits is always 0. Do not set these bits.
• 0 – VBUSTE: VBUS Transition Interrupt Enable Bit
Set this bit to enable the VBUS Transition interrupt generation.
Clear this bit to disable the VBUS Transition interrupt generation.
• 7-2 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 1 - ID: ID status
This bit is always read as “1”, it has been conserved for compatibility with AT90USB64/128 (in
which it indicates the value of the OTG ID pin).
• 0 – VBUS: VBus Flag
The value read from this bit indicates the state of the VBUS pin. This bit can be used in device
mode to monitor the USB bus connection state of the application. See Section 21.11, page 262
for more details.
7-1 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 0 – VBUSTI: IVBUS Transition Interrupt Flag
Set by hardware when a transition (high to low, low to high) has been detected on the VBUS
pad.
Shall be cleared by software.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
R
7
0
R
-
7
0
-
R
6
0
-
R
6
0
-
R
5
0
-
R
5
0
-
R
4
0
-
R
4
0
-
R
3
0
-
R
3
0
-
R
2
0
-
R
2
0
-
ATmega16/32U4
ID
R
1
1
R/W
1
0
-
VBUS
VBUSTI
R
0
0
R/W
0
0
USBSTA
USBINT
264

Related parts for ATMEGA32U4-MU