AT90CAN128-16AI Atmel, AT90CAN128-16AI Datasheet - Page 57
![IC MCU AVR FLASH 128K 64TQFP](/photos/12/13/121332/313-64-tqfp_sml.jpg)
AT90CAN128-16AI
Manufacturer Part Number
AT90CAN128-16AI
Description
IC MCU AVR FLASH 128K 64TQFP
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-16AI
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
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
4K 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
For Use With
ATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90CAN128-16AI
Manufacturer:
ALTERA
Quantity:
101
Company:
Part Number:
AT90CAN128-16AI
Manufacturer:
ATMEL
Quantity:
642
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7.2.2
7.3
7679H–CAN–08/08
Watchdog Timer
Voltage Reference Characteristics
ADC is used. To reduce power consumption in Power-down mode, the user can avoid the three
conditions above to ensure that the reference is turned off before entering Power-down mode.
Table 7-4.
The Watchdog Timer is clocked from a separate On-chip Oscillator which runs at 1 MHz. This is
the typical value at V
controlling the Watchdog Timer prescaler, the Watchdog Reset interval can be adjusted as
shown in
Timer. The Watchdog Timer is also reset when it is disabled and when a Chip Reset occurs.
Eight different clock cycle periods can be selected to determine the reset period. If the reset
period expires without another Watchdog Reset, the AT90CAN32/64/128 resets and executes
from the Reset Vector. For timing details on the Watchdog Reset, refer to
To prevent unintentional disabling of the Watchdog or unintentional change of time-out period,
two different safety levels are selected by the fuse WDTON as shown in Table 7-5. Refer to
“Timed Sequences for Changing the Configuration of the Watchdog Timer” on page 59
details.
Table 7-5.
Figure 7-7.
WDTON
Unprogrammed
Programmed
Symbol
V
t
I
BG
BG
BG
Table 7-6 on page
Parameter
Bandgap reference voltage
Bandgap reference start-up time
Bandgap reference current
consumption
Internal Voltage Reference Characteristics
WDT Configuration as a Function of the Fuse Settings of WDTON
Watchdog Timer
CC
Safety
Level
= 5V. See characterization data for typical values at other V
1
2
58. The WDR – Watchdog Reset – instruction resets the Watchdog
OSCILLATOR
WATCHDOG
Disabled
Enabled
WDT Initial
State
~1 MHz
Condition
How to Disable
the WDT
Timed sequence
Always enabled
AT90CAN32/64/128
Min.
1.0
Typ.
1.1
40
15
Table 7-6 on page
How to Change
Time-out
Timed sequence
Timed sequence
Max.
1.2
70
CC
levels. By
Units
µA
µs
V
58.
for
57
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