AT90CAN64-16AUR Atmel, AT90CAN64-16AUR Datasheet - Page 54
AT90CAN64-16AUR
Manufacturer Part Number
AT90CAN64-16AUR
Description
MCU AVR 64K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90CANr
Datasheet
1.AT90CAN32-16AUR.pdf
(428 pages)
Specifications of AT90CAN64-16AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CAN, EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Data Bus Width
8 bit
Data Ram Size
4 KB
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number
Manufacturer
Quantity
Price
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7.1.5
54
AT90CAN32/64/128
Brown-out Detection
Figure 7-4.
AT90CAN32/64/128 has an On-chip Brown-out Detection (BOD) circuit for monitoring the V
level during operation by comparing it to a fixed trigger level. The trigger level for the BOD can
be selected by the BODLEVEL Fuses. The trigger level has a hysteresis to ensure spike free
Brown-out Detection. The hysteresis on the detection level should be interpreted as V
V
Table 7-2.
Note:
Table 7-3.
When the BOD is enabled, and V
7-5), the Brown-out Reset is immediately activated. When V
Symbol
V
t
BOT
BOD
HYST
+ V
BODLEVEL 2..0 Fuses
1. V
HYST
this is the case, the device is tested down to V
antees that a Brown-Out Reset will occur before V
operation of the microcontroller is no longer guaranteed. The test is performed using
BODLEVEL = 010 for Low Operating Voltage and BODLEVEL = 101 for High Operating Volt-
age .
BOT
/2 and V
External Reset During Operation
BODLEVEL Fuse Coding
Brown-out Characteristics
Parameter
Brown-out Detector Hysteresis
Min Pulse Width on Brown-out Reset
CC
101
100
010
001
000
may be below nominal minimum operating voltage for some devices. For devices where
111
110
011
BOT-
= V
BOT
- V
CC
HYST
decreases to a value below the trigger level (V
Min V
(1)
/2.
BOT
CC
= V
Typ V
CC
Min.
4.1
4.0
3.9
3.8
2.7
2.6
2.5
BOT
drops to a voltage where correct
BOD Disabled
CC
BOT
during the production test. This guar-
increases above the trigger level
Typ.
70
2
Max V
Max.
BOT
7679H–CAN–08/08
BOT-
in
Units
Units
mV
BOT+
Figure
V
V
V
V
V
V
V
µs
CC
=
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