10.12 Inter-Integrated Circuit Interface (I2
參數(shù)資料
型號: MC56F8023VLC
廠商: Freescale Semiconductor
文件頁數(shù): 40/157頁
文件大?。?/td> 0K
描述: IC DSP 16BIT DUAL HARV 32-LQFP
標準包裝: 1,250
系列: 56F8xxx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 32MHz
連通性: I²C,LIN,SCI,SPI
外圍設備: POR,PWM,WDT
輸入/輸出數(shù): 26
程序存儲器容量: 32KB(16K x 16)
程序存儲器類型: 閃存
RAM 容量: 2K x 16
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 6x12b; D/A 2x12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 105°C
封裝/外殼: 32-LQFP
包裝: 托盤
56F8033/56F8023 Data Sheet, Rev. 6
134
Freescale Semiconductor
10.12 Inter-Integrated Circuit Interface (I2C) Timing
Table 10-17 I2C Timing
Characteristic
Symbol
Standard Mode
Fast Mode
Unit
Minimum
Maximum
Minimum
Maximum
SCL Clock Frequency
fSCL
0100
0400
kHz
Hold time (repeated)
START condition. After
this period, the first clock
pulse is generated.
tHD; STA
4.0
0.6
μs
LOW period of the SCL
clock
tLOW
4.7
1.3
μs
HIGH period of the SCL
clock
tHIGH
4.0
0.6
μs
Set-up time for a repeated
START condition
tSU; STA
4.7
0.6
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 tHD; DAT must be met only if the device does not stretch the LOW period (tLOW) of the SCL signal.
01
0.92
μs
Data set-up time
tSU; DAT
2503
3. Set-up time in slave-transmitter mode is 1 IPBus clock period, if the TX FIFO is empty.
1003, 4
4. A Fast mode I2C bus device can be used in a Standard mode I2C bus system, but the requirement tSU; DAT > = 250ns
must then be met. This will automatically be 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 = 1250ns (according to the Standard mode I
2C bus specification) before the SCL line is
released.
—ns
Rise time of both SDA and
SCL signals
tr
1000
20 +0.1Cb
5
5. Cb = total capacitance of the one bus line in pF.
300
ns
Fall time of both SDA and
SCL signals
tf
—300
20 +0.1Cb
5
300
ns
Set-up time for STOP
condition
tSU; STO
4.0
0.6
μs
Bus free time between
STOP and START
condition
tBUF
4.7
1.3
μs
Pulse width of spikes that
must be suppressed by
the input filter
tSP
N/A
0
50
ns
相關PDF資料
PDF描述
MC56F8025VLD IC DSP 16BIT DUAL HARV 44-LQFP
MC56F8036VLF IC DGTL SGNL CTLR 16BIT 48-LQFP
MC56F8037VLH IC DSP 16BIT DUAL 64-LQFP
MC56F8135VFGE IC DIGITAL SIGNAL CTLR 128-LQFP
MC56F8147VPYE IC DSP 16BIT 40MHZ 160-LQFP
相關代理商/技術參數(shù)
參數(shù)描述
MC56F8025 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
MC56F8025E 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Digital Signal Controller Product Brief
MC56F8025MLD 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT DSPHC RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT
MC56F8025VLD 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT DSPHC RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT
MC56F8025VLDR 制造商:Freescale Semiconductor 功能描述:16-BIT DSC, 56800E CORE, 32KB FLASH, 32MHZ, QFP 44 - Tape and Reel 制造商:Freescale Semiconductor 功能描述:IC DSC 16BIT 32KB FLASH 44LQFP 制造商:Freescale Semiconductor 功能描述:16 BIT DSPHC