ATMEGA329PV-10MU Atmel, ATMEGA329PV-10MU Datasheet - Page 31
ATMEGA329PV-10MU
Manufacturer Part Number
ATMEGA329PV-10MU
Description
IC MCU 32K 4X25 LCD CTRL 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA329PV-10MU
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Processor Series
ATMEGA32x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
SPI, USART, USI
Maximum Clock Frequency
10 MHz
Number Of Programmable I/os
54
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFP770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ATMEGA329PV-8MU
ATMEGA329PV-8MU
ATMEGA329PV-8MU
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8.6
8021G–AVR–03/11
Calibrated Internal RC Oscillator
The capacitance (Ce + Ci) needed at each TOSC pin can be calculated by using:
where
Ce - is optional external capacitors as described in
Ci - is the pin capacitance in
CL - is the load capacitance for a 32.768kHz crystal specified by the crystal vendor.
C
Crystals specifying load capacitance (CL) higher than the ones given in the
30, require external capacitors applied as described in
To find suitable load capacitance for a 32.768kHz crystal, please consult the crystal datasheet.
The Low-frequency Crystal Oscillator must be selected by setting the CKSEL Fuses to “0110” or
“0111” as shown in
Table
Table 8-7.
Table 8-8.
Note:
By default, the Internal RC Oscillator provides an approximate 8MHz clock. Though voltage and
temperature dependent, this clock can be very accurately calibrated by the user. The device is
shipped with the CKDIV8 Fuse programmed. See
more details.
This clock may be selected as the system clock by programming the CKSEL Fuses as shown in
Table 8-9 on page
hardware loads the pre-programmed calibration value into the OSCCAL Register and thereby
automatically calibrates the RC Oscillator. The accuracy of this calibration is shown as Factory
calibration in
By changing the OSCCAL register from SW, see
page
The accuracy of this calibration is shown as User calibration in
S
CKSEL3...
SUT1..0
- is the total stray capacitance for one TOSC pin.
0110
0111
00
01
10
11
35, it is possible to get a higher calibration accuracy than by using the factory calibration.
0
8-7.
(1)
1. This option should only be used if frequency stability at start-up is not important for the
application
Table 28-4 on page
Start-up Times for the Low-frequency Crystal Oscillator Clock Selection
Start-up Times for the Low-frequency Crystal Oscillator Clock Selection
Additional Delay from Reset (V
32. If selected, it will operate with no external components. During reset,
Power-down and Power-save
Table
Start-up Time from
8-8. Start-up times are determined by the SUT Fuses as shown in
4 CK + 4.1ms
4 CK + 65ms
Table 8-7 on page 31
32K CK
1K CK
4 CK
335.
Ce
+
Ci
CC
=
= 5.0V)
2 CL
”OSCCAL – Oscillator Calibration Register” on
⋅
Reserved
Figure 8-2 on page 29
”System Clock Prescaler” on page 33
–
Figure 8-2 on page
C
s
Recommended Usage
Fast rising power or BOD enabled
Slowly rising power
Stable frequency at start-up
Recommended Usage
Stable frequency at start-up
ATmega329P/3290P
Table 28-4 on page
29.
Table 8-6 on page
335.
for
31
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