ATMEGA32U4-MU Atmel, ATMEGA32U4-MU Datasheet - Page 384

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

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

29.8
Table 29-5.
7766F–AVR–11/10
TUE
Symbol
Hardware Boot EntranceTiming Characteristics
Parameter
Resolution
Absolute accuracy
ADC Characteristics
Figure 29-5. SPI Interface Timing Requirements (Slave Mode)
Figure 29-6. Hardware Boot Timing Requirements
Table 29-4.
Symbol
tSHRH
tHHRH
(Data Output)
(Data Input)
(CPOL = 0)
(CPOL = 1)
MOSI
MISO
Parameter
HWB low Setup before Reset High
HWB low Hold after Reset High
SCK
SCK
SS
Condition
Single Ended Conversion
Differential conversion, gain = 1x/10x/40x
Differential conversion, gain = 200x
V
Gain = 1x/10x/40x, V
ADC clock = 200 kHz
Gain = 200x, V
ADC clock = 200 kHz
ALE/HWB
Hardware Boot Timings
REF
RESET
= 4V, V
9
13
CC
REF
= 4V, ADC clock = 200 kHz
MSB
MSB
= 4V, V
14
REF
= 4V, V
15
CC
t
= 5V,
SHRH
CC
= 5V,
...
...
StartUpTime(
Delay(TOUT)
SUT) + Time
Min
Min
Out
0
11
ATmega16/32U4
Typ
2.0
2.0
2.0
10
10
t
8
8
HHRH
LSB
LSB
11
Max
12
Max
3.0
3.0
4.0
16
X
17
Units
LSB
Bits
384