ATmega164P Atmel Corporation, ATmega164P Datasheet - Page 35
ATmega164P
Manufacturer Part Number
ATmega164P
Description
Manufacturer
Atmel Corporation
Specifications of ATmega164P
Flash (kbytes)
16 Kbytes
Pin Count
44
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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8011O–AVR–07/10
The capacitance (Ce +Ci) needed at each TOSC pin can be calculated by using:
where:
Crystals specifying load capacitance (CL) higher than 8.0 pF, require external capacitors applied
as described in
When this oscillator is selected, start-up times are determined by the SUT Fuses and CKSEL0
as shown in
Table 6-9.
Note:
Power Conditions
BOD enabled
Fast rising power
Slowly rising power
BOD enabled
Fast rising power
Slowly rising power
– Ce - is optional external capacitors as described in Figure 8-2 on page29
– Ci - is the pin capacitance in table 8-8 on page 33
– CL - is the load capacitance for a 32.768 kHz crystal specified by the crystal vendor
– CS - is the total stray capacitance for one TOSC pin.
1. These options should only be used if frequency stability at start-up is not important for the
application.
Table
Start-up Times for the Low Frequency Crystal Oscillator Clock Selection
Figure 6-2 on page
6-9.
Start-up Time from
Power-down and
Reserved
Reserved
Power-save
32K CK
32K CK
32K CK
1K CK
1K CK
1K CK
31.
C
=
2 CL
⋅
ATmega164P/324P/644P
–
C
Additional Delay
14CK + 4.1 ms
s
14CK + 65 ms
14CK + 4.1 ms
14CK + 65 ms
(V
from Reset
CC
14CK
14CK
= 5.0V)
(1)
(1)
(1)
CKSEL0
0
0
0
0
1
1
1
1
SUT1..0
00
01
10
11
00
01
10
11
35
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