AT90CAN64-16AUR Atmel, AT90CAN64-16AUR Datasheet - Page 52

• Manufacturer Part Number: AT90CAN64-16AUR
• Description: MCU AVR 64K FLASH 16MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® 90CANr

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

Table 7-1.
Note:
7.1.3
52
Symbol
V
V
V
V
t
CCRR
RST
POT
POR
RST
1. The Power-on Reset will not work unless the supply voltage has been below V
AT90CAN32/64/128
Power-on Reset
Parameter
Power-on Reset Threshold Voltage (rising)
Power-on Reset Threshold Voltage (falling)
Minimum pulse width on RESET Pin
Vcc Start Voltage to ensure
Vcc Rise Rate to ensure
RESET Pin Threshold Voltage
Reset Characteristics
internal Power-on Reset signal
internal Power-on Reset signal
Figure 7-1.
A Power-on Reset (POR) pulse is generated by an On-chip detection circuit. The detection level
is defined in
POR circuit can be used to trigger the start-up Reset, as well as to detect a failure in supply
voltage.
A Power-on Reset (POR) circuit ensures that the device is properly reset from Power-on if V
started from V
voltage invokes the delay counter, which determines how long the device is kept in RESET after
BODLEVEL [2..0]
Table
Reset Logic
POR
with a rise rate upper than V
7-1. The POR is activated whenever V
Pull-up Resistor
(1)
JTAG Reset
Register
Spike
Filter
Vcc = 5 V, temperature = 25 °C
CKSEL[3:0]
Power-on Reset
Reset Circuit
SUT[1:0]
Condition
Brown-out
Watchdog
Oscillator
Generator
Circuit
Clock
CCRR
CK
Register (MCUSR)
. Reaching the Power-on Reset threshold
MCU Status
DATA BUS
POT
Delay Counters
(falling)
CC
- 0.05
is below the detection level. The
Min.
Vcc
0.3
0.2
GND
Typ.
400
1.4
1.3
TIMEOUT
+ 0.05
Max.
0.85
Vcc
2.3
2.3
7679H–CAN–08/08
Units
V/ms
ns
V
V
V
V
CC