ATMEGA162-16MI Atmel, ATMEGA162-16MI Datasheet - Page 66
ATMEGA162-16MI
Manufacturer Part Number
ATMEGA162-16MI
Description
IC MCU AVR 16K 5V 16MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA162-16MI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 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
44-VQFN Exposed Pad
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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ATmega162/V
Consider the clock period starting shortly after the first falling edge of the system clock. The latch
is closed when the clock is low, and goes transparent when the clock is high, as indicated by the
shaded region of the “SYNC LATCH” signal. The signal value is latched when the system clock
goes low. It is clocked into the PINxn Register at the succeeding positive clock edge. As indi-
cated by the two arrows t
between ½ and 1½ system clock period depending upon the time of assertion.
When reading back a software assigned pin value, a nop instruction must be inserted as indi-
cated in
clock. In this case, the delay t
Figure 31. Synchronization when Reading a Software Assigned Pin Value
INSTRUCTIONS
Figure
SYSTEM CLK
SYNC LATCH
31. The out instruction sets the “SYNC LATCH” signal at the positive edge of the
PINxn
r16
r17
pd,max
pd
out PORTx, r16
through the synchronizer is one system clock period.
and t
pd,min
, a single signal transition on the pin will be delayed
0x00
nop
t
pd
0xFF
in r17, PINx
0xFF
2513K–AVR–07/09
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