ATA6612P-PLPW Atmel, ATA6612P-PLPW Datasheet - Page 60
![MCU W/LIN TXRX REG WTCHDG 48-QFN](/photos/6/82/68297/48-qfn_sml.jpg)
ATA6612P-PLPW
Manufacturer Part Number
ATA6612P-PLPW
Description
MCU W/LIN TXRX REG WTCHDG 48-QFN
Manufacturer
Atmel
Series
AVR® ATA66 LIN-SBCr
Datasheet
1.ATA6612-EK.pdf
(364 pages)
Specifications of ATA6612P-PLPW
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
8KB (8K x 8)
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
48-QFN Exposed Pad
Processor Series
ATA6x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI, TWI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
23
Number Of Timers
3
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 60 of 364
- Download datasheet (7Mb)
6.6.9
6.6.10
6.6.11
60
Atmel ATA6612/ATA6613
Clock Output Buffer
Timer/Counter Oscillator
System Clock Prescaler
When applying an external clock, it is required to avoid sudden changes in the applied clock
frequency to ensure stable operation of the MCU. A variation in frequency of more than 2%
from one clock cycle to the next can lead to unpredictable behavior. If changes of more than
2% is required, ensure that the MCU is kept in Reset during the changes.
Note that the System Clock Prescaler can be used to implement run-time changes of the inter-
nal clock frequency while still ensuring stable operation. Refer to
page 60
The device can output the system clock on the CLKO pin. To enable the output, the CKOUT
Fuse has to be programmed. This mode is suitable when the chip clock is used to drive other
circuits on the system. The clock also will be output during reset, and the normal operation of
I/O pin will be overridden when the fuse is programmed. Any clock source, including the inter-
nal RC Oscillator, can be selected when the clock is output on CLKO. If the System Clock
Prescaler is used, it is the divided system clock that is output.
The device can operate its Timer/Counter2 from an external 32.768 kHz watch crystal or a
external clock source. The Timer/Counter Oscillator Pins (TOSC1 and TOSC2) are shared
with XTAL1 and XTAL2. This means that the Timer/Counter Oscillator can only be used when
an internal RC Oscillator is selected as system clock source. See
crystal connection.
Applying an external clock source to TOSC1 requires EXTCLK in the ASSR Register written to
logic one. See
description on selecting external clock as input instead of a 32kHz crystal.
The Atmel
divided by setting the
used to decrease the system clock frequency and the power consumption when the require-
ment for processing power is low. This can be used with all clock source options, and it will
affect the clock frequency of the CPU and all synchronous peripherals. clk
and clk
When switching between prescaler settings, the System Clock Prescaler ensures that no
glitches occurs in the clock system. It also ensures that no intermediate frequency is higher
than neither the clock frequency corresponding to the previous setting, nor the clock frequency
corresponding to the new setting. The ripple counter that implements the prescaler runs at the
frequency of the undivided clock, which may be faster than the CPU's clock frequency. Hence,
it is not possible to determine the state of the prescaler - even if it were readable, and the
exact time it takes to switch from one clock division to the other cannot be exactly predicted.
From the time the CLKPS values are written, it takes between T1 + T2 and T1 + 2 * T2 before
the new clock frequency is active. In this interval, 2 active clock edges are produced. Here, T1
is the previous clock period, and T2 is the period corresponding to the new prescaler setting.
FLASH
for details.
®
ATA6612/ATA6613 has a system clock prescaler, and the system clock can be
are divided by a factor as shown in
“Asynchronous operation of the Timer/Counter” on page 180
“Clock Prescale Register – CLKPR” on page
Table 6-20 on page
“System Clock Prescaler” on
Figure 6-12 on page 53
70.
61. This feature can be
I/O
, clk
9111H–AUTO–01/11
ADC
for further
, clk
CPU
for
,
Related parts for ATA6612P-PLPW
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATA6612P-PLQW](/photos/6/82/68297/48-qfn_tmb.jpg)
Part Number:
Description:
MCU W/LIN TXRX REG WTCHDG 48-QFN
Manufacturer:
Atmel
Datasheet:
![ATA6612-EK](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
BOARD DEMO LIN-MCM FOR ATA6612
Manufacturer:
Atmel
Datasheet:
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: