ATMEGA164P-15AZ Atmel, ATMEGA164P-15AZ Datasheet - Page 37
ATMEGA164P-15AZ
Manufacturer Part Number
ATMEGA164P-15AZ
Description
MCU AVR 16K FLASH 15MHZ 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA164P-15AZ
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
32
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
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Manufacturer
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Price
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7.7
7.8
7674F–AVR–09/09
128 kHz Internal Oscillator
External Clock
The 128 kHz internal Oscillator is a low power Oscillator providing a clock of 128 kHz. The fre-
quency is nominal at 3V and 25 C. This clock may be select as the system clock by
programming the CKSEL Fuses to “0011” as shown in
Table 7-12.
Note:
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table
Table 7-13.
To drive the device from an external clock source, XTAL1 should be driven as shown in
7-4. To run the device on an external clock, the CKSEL Fuses must be programmed to “0000”.
Figure 7-4.
When this clock source is selected, start-up times are determined by the SUT Fuses as shown in
Table
Table 7-14.
BOD enabled
Fast rising power
Slowly rising power
Power Conditions
7-13.
7-15.
1. The frequency is preliminary value. Actual value is TBD.
128 kHz Internal Oscillator Operating Modes
Start-up Times for the 128 kHz Internal Oscillator
External Clock Drive Configuration
Crystal Oscillator Clock Frequency
Nominal Frequency
Nominal Frequency
0 - 20 kHz
128 kHz
EXTERNAL
Power-down and Power-save
SIGNAL
CLOCK
NC
Start-up Time from
Reserved
6 CK
6 CK
6 CK
ATmega164P/324P/644P
XTAL2
XTAL1
GND
Table
7-12.
Additional Delay from
14CK + 64 ms
14CK + 4 ms
Reset
14CK
CKSEL3..0
CKSEL3..0
0011
0000
SUT1..0
01
10
00
11
Figure
37
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