AT89C51CC03U-RDRIM Atmel, AT89C51CC03U-RDRIM Datasheet - Page 9

• Manufacturer Part Number: AT89C51CC03U-RDRIM
• Description: IC 8051 MCU FLASH 64K 64VQFP
• Manufacturer: Atmel
• Series: AT89C CANr

Specifications of AT89C51CC03U-RDRIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT89C51CC03URDRTR

CAN Autobaud
CAN Autobaud
Limitation
4251B–CAN–03/08
The table below shows the autobaud performance for a point to point connection in X1 mode.
Note:
The CAN autobaud implemented in the bootloader is efficient only in point-to-point connection.
Because in a point to point connection, the transmit CAN message is repeated until a hardware
acknowledge is done by the receiver.
The bootloader can acknowledge an in-coming CAN frame only if a configuration is found.
This functionality is not guaranteed on a network with several CAN nodes.
‘–’ indicates an impossible configuration.
100 k
125 k
250 k
500 k
20 k
1 M
8 MHz
–
11.059
MHz
–
12 MHz 16 MHz 20 MHz
AT89C51CC03 CAN Bootloader
–
22.1184
MHz
24 MHz 25 MHz 32 MHz 40 MHz
–
–
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