ATMEGA64A-MN Atmel, ATMEGA64A-MN Datasheet - Page 332
ATMEGA64A-MN
Manufacturer Part Number
ATMEGA64A-MN
Description
IC MCU AVR 64K FLASH 8QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA64A-AU.pdf
(392 pages)
Specifications of ATMEGA64A-MN
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Figure 28-3. Two-wire Serial Bus Timing
8160C–AVR–07/09
SCL
SDA
2. Required only for f
3. C
4. f
5. This requirement applies to all ATmega64A Two-wire Serial Interface operation. Other devices connected to the Two-wire
6. The actual low period generated by the ATmega64A Two-wire Serial Interface is (1/f
7. The actual low period generated by the ATmega64A Two-wire Serial Interface is (1/f
t
SU;STA
Serial Bus need only obey the general f
6 MHz for the low time requirement to be strictly met at f
ment will not be strictly met for f
communicate at full speed (400 kHz) with other ATmega64A devices, as well as any other device with a proper t
tance margin.
CK
b
= capacitance of one bus line in pF.
= CPU clock frequency
SCL
> 100 kHz.
t
HD;STA
t
t
of
LOW
SCL
> 308 kHz when f
SCL
t
HIGH
requirement.
t
HD;DAT
CK
= 8 MHz. Still, ATmega64A devices connected to the bus may
SCL
t
LOW
= 100 kHz.
t
SU;DAT
SCL
SCL
- 2/f
- 2/f
CK
CK
), thus f
), thus the low time require-
t
SU;STO
ATmega64A
CK
t
r
must be greater than
LOW
t
accep-
BUF
332
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