AT90CAN128-15AZ Atmel, AT90CAN128-15AZ Datasheet - Page 242
![MCU AVR 128K FLASH 15MHZ 64TQFP](/photos/37/62/376245/tqfp-64_sml.jpg)
AT90CAN128-15AZ
Manufacturer Part Number
AT90CAN128-15AZ
Description
MCU AVR 128K FLASH 15MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90CANr
Specifications of AT90CAN128-15AZ
Package / Case
64-TQFP, 64-VQFP
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Speed
16MHz
Number Of I /o
53
Eeprom Size
4K x 8
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
4K x 8
Program Memory Size
128KB (128K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity
CAN, I²C, SPI, UART/USART
Core Size
8-Bit
Processor Series
AT90CANx
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
CAN, SPI, UART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
53
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATDVK90CAN1, ATADAPCAN01
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Cpu Family
90C
Device Core
AVR
Device Core Size
8b
Frequency (max)
16MHz
Total Internal Ram Size
4KB
# I/os (max)
53
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
2.7V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 125C
Operating Temperature Classification
Automotive
Mounting
Surface Mount
Pin Count
64
Package Type
TQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90CAN128-15AZ
Manufacturer:
SAMSUNG
Quantity:
1 001
Company:
Part Number:
AT90CAN128-15AZ
Manufacturer:
ATMEL
Quantity:
1 000
Part Number:
AT90CAN128-15AZ
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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19.4.3
242
Notes: 1. Phase error < 0
AT90CAN32/64/128
Baud Rate
5. Synchronization Segment: SYNS
2. Phase error > 0
3. Phase error > 0
4. Phase error < 0
Tsyns=1
x
Tscl (
The total number of TQ in a bit time has to be programmed at least from 8 to 25.
Figure 19-7. Sample and Transmission Point
Figure 19-8. General Structure of a Bit Period
With no baud rate prescaler (BRP[5..0]=0) the sampling point comes one time quantum too
early. This leads to a fail according the ISO16845 Test plan. It is necessary to lengthen the
Phase Segment 1 by one time quantum and to shorten the Phase Segment 2 by one time quan-
tum to compensate.
The baud rate selection is made by T
1. Tsyns = 1 x Tscl = (BRP[5..0]+ 1)/clk
2. Tprs = (1 to 8) x Tscl = (PRS[2..0]+ 1) x Tscl
3. Tphs1 = (1 to 8) x Tscl = (PHS1[2..0]+ 1) x Tscl
4. Tphs2 = (1 to 8) x Tscl = (PHS2[2..0]
CLK
fixed
F
Data
CAN
)
IO
CLK
IO
Tbit
Tsyns(5)
(1)
= Tsyns + Tprs + Tphs1 + Tphs2
1
Prescaler BRP
/
CLK
IO
Tscl (TQ)
Tprs
bit
Time Quantum
calculation:
Fcan (Tscl)
Bit Rate Prescaler
IO
one nominal bit
(2)
(= 1TQ)
+ 1) x Tscl
Tbit
Tphs1+Tsjw
Tphs1
PHS1 (3-bit length)
PHS2 (3-bit length)
PRS (3-bit length)
SJW (2-bit length)
Bit Timing
or
(
1
)
(
3
Sample
)
Point
Tphs2+Tsjw
Tphs2
or
Transmission
(
2
Transmission
)
7679H–CAN–08/08
(
Sample
4
)
Point
Point
Point
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