ATA6612P-PLQW Atmel, ATA6612P-PLQW Datasheet - Page 210
ATA6612P-PLQW
Manufacturer Part Number
ATA6612P-PLQW
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-PLQW
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
I2C, SPI, 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
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATA6612P-PLQW
Manufacturer:
UPI
Quantity:
230
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6.17.7.3
210
Atmel ATA6612/ATA6613
Asynchronous Operational Range
The operational range of the Receiver is dependent on the mismatch between the received bit
rate and the internally generated baud rate. If the Transmitter is sending frames at too fast or
too slow bit rates, or the internally generated baud rate of the Receiver does not have a similar
(see
the start bit.
The following equations can be used to calculate the ratio of the incoming data rate and inter-
nal receiver baud rate.
D
S
S
S
R
Table 6-72
tolerated. Note that Normal Speed mode has higher toleration of baud rate variations.
Table 6-72.
R
F
M
slow
slow
# (Data+Parity Bit)
Table
=
---------------------------------------------
S 1
10
D
5
6
7
8
9
–
and
6-72) base frequency, the Receiver will not be able to synchronize the frames to
Sum of character size and parity size (D = 5 to 10 bit)
Samples per bit. S = 16 for Normal Speed mode and S = 8 for Double Speed
mode.
First sample number used for majority voting. S
S
Middle sample number used for majority voting. S
S
is the ratio of the slowest incoming data rate that can be accepted in relation to
the receiver baud rate. R
be accepted in relation to the receiver baud rate.
+
Recommended Maximum Receiver Baud Rate Error for Normal Speed Mode
(U2Xn = 0)
D
F
M
Table 6-73 on page 211
D
+
= 4 for Double Speed mode.
= 5 for Double Speed mode.
1
S
S
+
R
S
slow
93.20
94.12
94.81
95.36
95.81
96.17
F
(%)
R
106.67
105.79
105.11
104.58
104.14
103.78
fast
fast
(%)
list the maximum receiver baud rate error that can be
is the ratio of the fastest incoming data rate that can
Max Total Error (%)
R
fast
+5.79/-5.88
+5.11/-5.19
+4.58/-4.54
+4.14/-4.19
+3.78/-3.83
+6.67/-6.8
=
-----------------------------------
D
+
D
1
F
+
= 8 for normal speed and
S
M
2
+
= 9 for normal speed and
S
S
M
Recommended Max
Receiver Error (%)
9111H–AUTO–01/11
±3.0
±2.5
±2.0
±2.0
±1.5
±1.5
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