ATMEGA64M1-15MZ Atmel, ATMEGA64M1-15MZ Datasheet - Page 259
ATMEGA64M1-15MZ
Manufacturer Part Number
ATMEGA64M1-15MZ
Description
MCU AVR 64KB FLASH 3PSC 32-VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA64M1-15MZ.pdf
(367 pages)
Specifications of ATMEGA64M1-15MZ
Package / Case
32-VQFN
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Eeprom Size
2K x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
4K x 8
Program Memory Size
64KB (64K x 8)
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Connectivity
CAN, LIN, SPI, UART/USART
Core Size
8-Bit
Processor Series
ATMEGA64x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATADAPCAN01
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of I /o
-
Lead Free Status / Rohs Status
Details
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19.2
19.2.1
7647G–AVR–09/11
Typical applications
LIN Current Source
During the configuration of a LIN node in a cluster, it may be necessary to attribute dynami-
cally an unique physical address to every cluster node. The way to do it is not described in the
LIN protocol.
The Current Source offers an excellent solution to associate a physical address to the applica-
tion supported by the LIN node. A full dynamic node configuration can be used to set-up the
LIN nodes in a cluster.
ATmega16/32/64/M1/C1 proposes to have an external resistor used in conjunction with the
Current Source. The device measures the voltage to the boundaries of the resistance via the
Analog to Digital converter. The resulting voltage defines the physical address that the com-
munication handler will use when the node will participate in LIN communication.
In automotive applications, distributed voltages are very disturbed. The internal Current
Source solution of ATmega16/32/64/M1/C1 immunizes the address detection against any kind
of voltage variations.
Table 19-1.
Physical
Address
0
1
2
3
4
5
6
7
Resistor Value
1 000
2 200
3 300
4 700
6 800
10 000
15 000
22 000
Example of Resistor Values(±5%) for a 8-address System (AV
R
load
(Ohm)
0.1
0.22
0.33
0.47
0.68
1
1.5
2.2
Voltage (V)
Measured
Typical
Atmel ATmega16/32/64/M1/C1
Reading with
a 2.56V ref
Minimum
40
88
132
188
272
400
600
880
Reading with
a 2.56V ref
Typical
CC
Reading with
= 5V
a 2.56V ref
Maximum
(1)
)
259
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