參數(shù)資料
型號: MC56F8255VLD
廠商: Freescale Semiconductor
文件頁數(shù): 62/88頁
文件大?。?/td> 0K
描述: DSC 64K FLASH 60MHZ 44-LQFP
標準包裝: 160
系列: 56F8xxx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 60MHz
連通性: CAN,I²C,LIN,SCI,SPI
外圍設(shè)備: LVD,POR,PWM,WDT
輸入/輸出數(shù): 35
程序存儲器容量: 64KB(32K x 16)
程序存儲器類型: 閃存
RAM 容量: 4K x 16
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x12b,D/A 1x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 105°C
封裝/外殼: 44-LQFP
包裝: 管件
Specifications
MC56F825x/MC56F824x Digital Signal Controller, Rev. 3
Freescale Semiconductor
65
7.20
Freescale’s Scalable Controller Area Network (MSCAN)
Figure 26. Bus Wake-up Detection
7.21
Inter-Integrated Circuit Interface (I2C) Timing
Table 36. MSCAN Timing
Characteristic
Symbol
Min
Max
Unit
Baud Rate
BRCAN
1
Mbps
Bus Wake-up detection
TWAKEUP
TIPBUS
μs
Table 37. I2C Timing
Characteristic
Symbol
Standard Mode
Unit
Minimum
Maximum
SCL Clock Frequency
fSCL
0
100
kHz
Hold time (repeated) START condition. After this period, the first
clock pulse is generated.
tHD; STA
4.0
μs
LOW period of the SCL clock
tLOW
4.7
μs
HIGH period of the SCL clock
tHIGH
4.0
μs
Set-up time for a repeated START condition
tSU; STA
4.7
μs
Data hold time for I2C bus devices
tHD; DAT
01
1 The master mode I2C deasserts ACK of an address byte simultaneously with the falling edge of SCL. If no slaves
acknowledge this address byte, a negative hold time can result, depending on the edge rates of the SDA and SCL lines.
3.452
2 The maximum t
HD; DAT must be met only if the device does not stretch the LOW period (tLOW) of the SCL signal.
μs
Data set-up time
tSU; DAT
2503
3 A Fast mode I2C bus device can be used in a Standard mode I2C bus system, but the requirement t
SU; DAT > = 250 ns must
then be met. This is automatically the case if the device does not stretch the LOW period of the SCL signal. If such a device
does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line
trmax + tSU; DAT = 1000 + 250 = 1250 ns (according to the Standard mode I
2C bus specification) before the SCL line is released.
—ns
Rise time of SDA and SCL signals
tr
1000
ns
Fall time of SDA and SCL signals
tf
300
ns
Set-up time for STOP condition
tSU; STO
4.0
μs
Bus free time between STOP and START condition
tBUF
4.7
μs
Pulse width of spikes that must be suppressed by the input filter
tSP
N/A
ns
TWAKEUP
MSCAN_RX
CAN receive
data pin
(Input)
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