ATMEGA32U2-MUR Atmel, ATMEGA32U2-MUR Datasheet - Page 270

• Manufacturer Part Number: ATMEGA32U2-MUR
• Description: MCU AVR 32K FLASH 16MHZ 32VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA32U2-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -

26.8
26.9
7799D–AVR–11/10
Hardware Boot EntranceTiming Characteristics
Parallel Programming Characteristics
Table 26-7.
Figure 26-4. Hardware Boot Timing Requirements
Table 26-8.
Figure 26-5. Parallel Programming Timing, Including some General Timing Requirements
Symbol
tSHRH
tHHRH
(Data Output)
(DATA, XA0/1, BS1, BS2)
(Data Input)
(CPOL = 0)
(CPOL = 1)
MOSI
MISO
SCK
SCK
Parameter
HWB low Setup before Reset High
HWB low Hold after Reset High
SS
ALE/HWB
Data & Contol
SPI Interface Timing Requirements (Slave Mode)
Hardware Boot Timings
RESET
RDY/BSY
PAGEL
XTAL1
9
WR
13
MSB
MSB
14
t
t
BVPH
DVXH
15
t
t
t
XHXL
PHPL
SHRH
t
t
t
t
XLDX
XLWL
PLBX
PLWL
...
...
ATmega8U2/16U2/32U2
t
BVWL
t
WLWH
Time Out Delay(TOUT)
WLRL
StartUpTime(SUT) +
11
Min
10
t
0
HHRH
LSB
LSB
t
WLBX
11
12
16
t
X
WLRH
17
Max
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