C8051F555-IM Silicon Laboratories Inc, C8051F555-IM Datasheet - Page 208
![IC 8051 MCU 16K FLASH 24-QFN](/photos/12/15/121587/c8051f9xx_24-qfn_sml.jpg)
C8051F555-IM
Manufacturer Part Number
C8051F555-IM
Description
IC 8051 MCU 16K FLASH 24-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F55xr
Specifications of C8051F555-IM
Program Memory Type
FLASH
Program Memory Size
16KB (16K x 8)
Package / Case
24-QFN
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), CAN, SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
18
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.25 V
Data Converters
A/D 18x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
C8051F5x
Core
8051
Data Bus Width
8 bit
Data Ram Size
2304 B
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
18
Operating Supply Voltage
1.8 V to 5.25 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F540DK
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1691 - KIT DEVELOPMENT FOR C8051F560
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1688-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F555-IM
Manufacturer:
Silicon Labs
Quantity:
135
- Current page: 208 of 302
- Download datasheet (3Mb)
C8051F55x/56x/57x
21. Controller Area Network (CAN0)
Important Documentation Note : The Bosch CAN Controller is integrated in the C8051F550/1/4/5, ‘F560/
1/4/5/8/9, and ‘F572/3 devices. This section of the data sheet gives a description of the CAN controller as
an overview and offers a description of how the Silicon Labs CIP-51 MCU interfaces with the on-chip
Bosch CAN controller. In order to use the CAN controller, refer to Bosch’s C_CAN User’s Manual as an
accompanying manual to the Silicon Labs’ data sheet.
The C8051F550/1/4/5, ‘F560/1/4/5/8/9, and ‘F572/3 devices feature a Control Area Network (CAN) con-
troller that enables serial communication using the CAN protocol. Silicon Labs CAN facilitates communica-
tion on a CAN network in accordance with the Bosch specification 2.0A (basic CAN) and 2.0B (full CAN).
The CAN controller consists of a CAN Core, Message RAM (separate from the CIP-51 RAM), a message
handler state machine, and control registers. Silicon Labs CAN is a protocol controller and does not pro-
vide physical layer drivers (i.e., transceivers). Figure 21.1 shows an example typical configuration on a
CAN bus.
Silicon Labs’ CAN operates at bit rates of up to 1 Mbit/second, though this can be limited by the physical
layer chosen to transmit data on the CAN bus. The CAN processor has 32 Message Objects that can be
configured to transmit or receive data. Incoming data, message objects and their identifier masks are
stored in the CAN message RAM. All protocol functions for transmission of data and acceptance filtering is
performed by the CAN controller and not by the CIP-51 MCU. In this way, minimal CPU bandwidth is
needed to use CAN communication. The CIP-51 configures the CAN controller, accesses received data,
and passes data for transmission via Special Function Registers (SFRs) in the CIP-51.
Silicon Labs MCU
CAN Protocol Device
CAN Protocol Device
CANTX
CANRX
CAN
CAN
CAN
Transceiver
Transceiver
Transceiver
Isolation/Buffer (Optional)
Isolation/Buffer (Optional)
Isolation/Buffer (Optional)
CAN_H
R
R
CAN_L
Figure 21.1. Typical CAN Bus Configuration
208
Rev. 1.1
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