ATMEGA32U4-MUR Atmel, ATMEGA32U4-MUR Datasheet - Page 381
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ATMEGA32U4-MUR
Manufacturer Part Number
ATMEGA32U4-MUR
Description
MCU AVR 16K FLASH 16MHZ 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16U4-MU.pdf
(433 pages)
Specifications of ATMEGA32U4-MUR
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA32U4-MUR
Manufacturer:
UCC
Quantity:
1 001
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29.6
Table 29-2
wire Serial Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 29-2.
7766F–AVR–11/10
Symbol
VIL
VIH
Vhys
VOL
tr
tof
tSP
I
C
f
Rp
t
t
i
SCL
HD;STA
LOW
(1)
i
(1)
(1)
(1)
(1)
(1)
2-wire Serial Interface Characteristics
describes the requirements for devices connected to the 2-wire Serial Bus. The ATmega16U4/ATmega32U4 2-
Parameter
Input Low-voltage
Input High-voltage
Hysteresis of Schmitt Trigger Inputs
Output Low-voltage
Rise Time for both SDA and SCL
Output Fall Time from V
Spikes Suppressed by Input Filter
Input Current each I/O Pin
Capacitance for each I/O Pin
SCL Clock Frequency
Value of Pull-up resistor
Hold Time (repeated) START Condition
Low Period of the SCL Clock
2-wire Serial Bus Requirements
Figure
Figure 29-2. Maximum Frequency vs. V
29-3.
IHmin
to V
16 MHz
ILmax
8 MHz
2.7V
f
CK
(4)
10 pF < C
0.1V
> max(16f
3 mA sink current
f
f
SCL
SCL
f
f
f
f
SCL
SCL
SCL
SCL
CC
Condition
≤ 100 kHz
> 100 kHz
< V
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
b
CC
Safe Operating Area
< 400 pF
SCL
i
< 0.9V
, ATmega16U4/ATmega32U4
, 250kHz)
(6)
(7)
CC
(3)
(5)
4.5V
20 + 0.1C
20 + 0.1C
V
----------------------------
V
----------------------------
0.05 V
CC
CC
0.7 V
3mA
3mA
-0.5
Min
-10
4.0
0.6
4.7
1.3
–
–
0
0
–
0
ATmega16/32U4
0,4V
0,4V
CC
CC
b
b
(2)
(3)(2)
(3)(2)
5.5V
V
0.3 V
1000ns
------------------ -
CC
300ns
--------------- -
50
Max
300
250
400
0.4
C
10
10
C
–
–
–
–
–
+ 0.5
b
(2)
b
CC
Units
kHz
µA
pF
ns
ns
ns
µs
µs
µs
µs
Ω
Ω
V
V
V
V
381
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