AT90CAN128-16MJ Atmel, AT90CAN128-16MJ Datasheet - Page 40
AT90CAN128-16MJ
Manufacturer Part Number
AT90CAN128-16MJ
Description
IC MCU AVR FLASH 128K 64-QFN
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-16MJ
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-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
For Use With
ATDVK90CAN1 - KIT DEV FOR AT90CAN128 MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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5.5
40
Low-frequency Crystal Oscillator
AT90CAN32/64/128
Table 5-4.
Notes:
To use a 32.768 kHz watch crystal as the clock source for the device, the low-frequency crystal
Oscillator must be selected by setting the CKSEL Fuses to “0100”, “0101”, “0110”, or “0111”.
The crystal should be connected as shown in
Figure 5-3.
12-22 pF capacitors may be necessary if the parasitic impedance (pads, wires & PCB) is very
low.
CKSEL0
0
0
0
0
1
1
1
1
1. These options should only be used when not operating close to the maximum frequency of the
2. These options are intended for use with ceramic resonators and will ensure frequency stability
device, and only if frequency stability at start-up is not important for the application. These
options are not suitable for crystals.
at start-up. They can also be used with crystals when not operating close to the maximum fre-
quency of the device, and if frequency stability at start-up is not important for the application.
SUT1..0
Start-up Times for the Oscillator Clock Selection
Low-frequency Crystal Oscillator Connections
00
01
10
00
01
10
11
11
Start-up Time from
Power-down and
Power-save
258 CK
258 CK
1K CK
1K CK
1K CK
16K CK
16K CK
16K CK
32.768 KHz
(2)
(2)
(2)
(1)
(1)
12 - 22 pF
12 - 22 pF
Figure
Additional Delay
14 CK + 4.1 ms
14 CK + 4.1 ms
14 CK + 4.1 ms
14 CK + 65 ms
14 CK + 65 ms
14 CK + 65 ms
(V
from Reset
5-3.
CC
14 CK
14 CK
= 5.0V)
XTAL2
XTAL1
GND
Recommended Usage
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Ceramic resonator, BOD
enabled
Ceramic resonator, fast
rising power
Ceramic resonator, slowly
rising power
Crystal Oscillator, BOD
enabled
Crystal Oscillator, fast
rising power
Crystal Oscillator, slowly
rising power
7679H–CAN–08/08
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