ATmega32U4 Atmel Corporation, ATmega32U4 Datasheet - Page 26

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
26
;*F************************************************************************
**
; NAME: wait_spmen
;--------------------------------------------------------------------------
--
; PARAMS:
;--------------------------------------------------------------------------
--
; PURPOSE:
;**************************************************************************
**
WAIT_SPMEN:
END
RCALL
MOV
LDI
OUT SPMCSR, R18 ; r18 decides function
SPM
RJMP
MOVR0, R18
INR18, SPMCSR
SBRC
RJMP
MOVR18, R0
RET
WAIT_SPMEN
R18,SPMEN
WAIT_SPMEN
WAIT_SPMEN
R0,R16
R18,((1<<BLBSET)|(1<<SPMEN))
none
Performs an active wait on SPME flag
; get SPMCR into r18
; Wait for SPMEN flag cleared
; write lockbits
; Wait for SPMEN flag cleared
; Wait for SPMEN flag cleared
7618C–AVR–07/08

Related parts for ATmega32U4