tw(SDAH) tr(SCL) t
<pre id="s2t4h"></pre>
  • <ins id="s2t4h"></ins>
  • <ins id="s2t4h"><small id="s2t4h"></small></ins>
    參數(shù)資料
    型號: TMS470R1A384PGET
    廠商: Texas Instruments
    文件頁數(shù): 43/62頁
    文件大?。?/td> 0K
    描述: IC RISC FLASH MCU 144-LQFP
    標準包裝: 60
    系列: TMS470
    核心處理器: ARM7
    芯體尺寸: 16/32-位
    速度: 48MHz
    連通性: CAN,C2Slb,I²C,SCI,SPI
    外圍設(shè)備: DMA,PWM,WDT
    輸入/輸出數(shù): 94
    程序存儲器容量: 384KB(384K x 8)
    程序存儲器類型: 閃存
    RAM 容量: 32K x 8
    電壓 - 電源 (Vcc/Vdd): 1.71 V ~ 2.05 V
    數(shù)據(jù)轉(zhuǎn)換器: A/D 12x10b
    振蕩器型: 外部
    工作溫度: -40°C ~ 105°C
    封裝/外殼: 144-LQFP
    包裝: 托盤
    產(chǎn)品目錄頁面: 718 (CN2011-ZH PDF)
    配用: 296-23003-ND - KIT DEV KICKSTART TMS470
    其它名稱: 296-18724
    I2C TIMING
    tw(SDAH)
    tr(SCL)
    th(SDASCLL)
    th(SCLLSDAL)
    tw(SCLH)
    tf(SCL)
    th(SCLLSDAL)
    tsu(SCLHSDAL)
    tw(SP)
    tsu(SCLHSDAH)
    SDA
    SCL
    Stop
    Start
    Repeated
    Stop
    tc(SCL)
    tw(SCLL)
    tsu(SDASCLH)
    SPNS110E – AUGUST 2005 – REVISED MAY 2008 ......................................................................................................................................................... www.ti.com
    Table 11 below assumes testing over recommended operating conditions.
    Table 11. I2C Signals (SDA and SCL) Switching Characteristics(1)
    STANDARD
    FAST MODE
    MODE
    PARAMETER
    UNIT
    MIN
    MAX
    MIN
    MAX
    tc(I2CCLK)
    Cycle time, I2C module clock
    75
    150
    75
    150
    ns
    tc(SCL)
    Cycle time, SCL
    10
    2.5
    s
    tsu(SCLH-SDAL)
    Setup time, SCL high before SDA low (for a repeated START condition)
    4.7
    0.6
    s
    th(SCLL-SDAL)
    Hold time, SCL low after SDA low (for a repeated START condition)
    4
    0.6
    s
    tw(SCLL)
    Pulse duration, SCL low
    4.7
    1.3
    s
    tw(SCLH)
    Pulse duration, SCL high
    4
    0.6
    s
    tsu(SDA-SCLH)
    Setup time, SDA valid before SCL high
    250
    100
    ns
    th(SDA-SCLL)
    Hold time, SDA valid after SCL low
    For I2C bus devices
    0 3.45(2)
    0
    0.9
    s
    tw(SDAH)
    Pulse duration, SDA high between STOP and START conditions
    4.7
    1.3
    s
    tsu(SCLH-SDAH)
    Setup time, SCL high before SDA high (for STOP condition)
    4.0
    0.6
    s
    tw(SP)
    Pulse duration, spike (must be suppressed)
    0
    50
    ns
    Cb
    (3)
    Capacitive load for each bus line
    400
    pF
    (1)
    The I2C pins SDA and SCL do not feature fail-safe I/O buffers. These pins could potentially draw current when the device is powered
    down.
    (2)
    The maximum th(SDA-SCLL) for I2C bus devices needs to be met only if the device does not stretch the low period (tw(SCLL)) of the SCL
    signal.
    (3)
    Cb = The total capacitance of one bus line in pF.
    A.
    A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL
    signal) to bridge the undefined region of the falling edge of SCL.
    B.
    The maximum th(SDA-SCLL) needs only be met if the device does not stretch the LOW period (tw(SCLL)) of the SCL
    signal.
    C.
    A fast-mode I2C-bus device can be used in a standard-mode I2C-bus system, but the requirement tsu(SDA-SCLH) ≥ 250
    ns 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
    tr max + tsu(SDA-SCLH).
    D.
    Cb = total capacitance of one bus line in pF. If mixed with HS=mode devices, faster fall-times are allowed.
    Figure 19. I2C Timings
    48
    Copyright 2005–2008, Texas Instruments Incorporated
    Product Folder Link(s): TMS470R1A384
    相關(guān)PDF資料
    PDF描述
    VI-26L-IX-F3 CONVERTER MOD DC/DC 28V 75W
    DSPIC30F6012-20E/PF IC DSPIC MCU/DSP 144K 64TQFP
    VI-26K-IX-F4 CONVERTER MOD DC/DC 40V 75W
    VI-26K-IX-F1 CONVERTER MOD DC/DC 40V 75W
    VI-26J-IX-F2 CONVERTER MOD DC/DC 36V 75W
    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    TMS470R1A384PGETR 制造商:Texas Instruments 功能描述:48MHZ / 384K FLASH - Tape and Reel
    TMS470R1A384PZQ 功能描述:ARM微控制器 - MCU 16/32B RISC Flash Microcontroller RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風格:SMD/SMT
    TMS470R1A384PZQR 制造商:Texas Instruments 功能描述:48MHZ / 384K FLASH - Tape and Reel
    TMS470R1A384PZT 制造商:Texas Instruments 功能描述:MCU 16-bit/32-bit TMS470 ARM7TDMI RISC 384KB Flash 1.8V 100-Pin LQFP Tray
    TMS470R1A384PZ-T 功能描述:ARM微控制器 - MCU 48mhz / 384k Flash RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風格:SMD/SMT