ATmega32U4 Atmel Corporation, ATmega32U4 Datasheet - Page 51

no-image

ATmega32U4

Manufacturer Part Number
ATmega32U4
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATmega32U4

Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
14
Hardware Qtouch Acquisition
No
Max I/o Pins
26
Ext Interrupts
13
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
1
Uart
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
3.3
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
4
Output Compare Channels
12
Input Capture Channels
2
Pwm Channels
8
32khz Rtc
No
Calibrated Rc Oscillator
Yes

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega32U4-16AU
Manufacturer:
MAXIM
Quantity:
1 000
Part Number:
ATmega32U4-AU
Manufacturer:
FREESCALE
Quantity:
125
Part Number:
ATmega32U4-AU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega32U4-AU
Manufacturer:
MICROCHIP
Quantity:
200
Part Number:
ATmega32U4-AUR
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega32U4-MUR
Manufacturer:
UCC
Quantity:
1 001
Part Number:
ATmega32U4RC-AU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega32U4RC-AUR
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATmega32U4RC-MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
8.0.4
7766F–AVR–11/10
External Reset
device is kept in RESET after V
when V
Figure 8-2.
Figure 8-3.
An External Reset is generated by a low level on the RESET pin. Reset pulses longer than the
minimum pulse width (see
Shorter pulses are not guaranteed to generate a reset. When the applied signal reaches the
Reset Threshold Voltage – V
the Time-out period – t
Figure 8-4.
INTERNAL
INTERNAL
TIME-OUT
TIME-OUT
CC
RESET
RESET
RESET
RESET
V
V
decreases below the detection level.
CC
CC
CC
MCU Start-up, RESET Tied to V
MCU Start-up, RESET Extended Externally
External Reset During Operation
V
V
POR
POR
TOUT
– has expired.
V
V
V
Table
POT
POT
RST
RST
CC
t
– on its positive edge, the delay counter starts the MCU after
TOUT
rise. The RESET signal is activated again, without any delay,
8-1) will generate a reset, even if the clock is not running.
CC
V
RST
t
TOUT
ATmega16/32U4
51

Related parts for ATmega32U4