ATMEGA162-16MC Atmel, ATMEGA162-16MC Datasheet - Page 36
![IC MCU AVR 16K 5V 16MHZ 44-QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA162-16MC
Manufacturer Part Number
ATMEGA162-16MC
Description
IC MCU AVR 16K 5V 16MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA162-16MC
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)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-VQFN Exposed Pad
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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Low-frequency Crystal
Oscillator
36
ATmega162(V/U/L)
Table 8. Start-up Times for the Crystal Oscillator Clock Selection (Continued)
Notes:
To use a 32.768 kHz watch crystal as the clock source for the device, the Low-fre-
quency Crystal Oscillator must be selected by setting the CKSEL Fuses to “0100”,
“0101”, “0110” or “0111”. The crystal should be connected as shown in Figure 19. If
CKSEL equals “0110” or “0111”, the internal capacitors on XTAL1 and XTAL2 are
enabled, thereby removing the need for external capacitors. The internal capacitors
have a nominal value of 10 pF.
When this Oscillator is selected, start-up times are determined by the SUT Fuses (real
time-out from Reset) and CKSEL0 (number of clock cycles) as shown in Table 9 and
Table 10.
Table 9. Start-up Delay from Reset when Low-frequency Crystal Oscillator is Selected
Table 10. Start-up Times for the Low-frequency Crystal Oscillator Clock Selection
Note:
CKSEL0
CKSEL1:0
SUT1:0
00
01
10
11
00
10
1
1
1
01
11
(1)
(1)
1. These options should only be used when not operating close to the maximum fre-
2. These options are intended for use with ceramic resonators and will ensure fre-
1. These options should only be used if frequency stability at start-up is not important for
quency of the device, and only if frequency stability at start-up is not important for the
application. These options are not suitable for crystals.
quency stability at start-up. They can also be used with crystals when not operating
close to the maximum frequency of the device, and if frequency stability at start-up is
not important for the application.
the application.
Additional Delay from Reset (V
SUT1:0
Internal Capacitors
01
10
11
Enabled?
Yes
Yes
No
No
Start-up Time from
Power-down and
Power-save
16K CK
16K CK
16K CK
4.1 ms
65 ms
0 ms
Start-up Time from
Power-down and
Power-save
CC
32K CK
32K CK
1K CK
1K CK
= 5.0V)
Reserved
Additional Delay from
Reset (V
4.1 ms
65 ms
Recommended Usage
Fast rising power or BOD enabled
Fast rising power or BOD enabled
Slowly rising power
CC
–
= 5.0V)
Recommended Usage
Stable Frequency at start-up
Stable Frequency at start-up
Recommended
Usage
Crystal Oscillator,
BOD enabled
Crystal Oscillator,
fast rising power
Crystal Oscillator,
slowly rising power
2513C–AVR–09/02
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