www.ti.com
參數(shù)資料
型號: TMS470R1A384PGET
廠商: Texas Instruments
文件頁數(shù): 49/62頁
文件大小: 0K
描述: IC RISC FLASH MCU 144-LQFP
標(biāo)準(zhǔn)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
HIGH-END TIMER (HET) TIMINGS
Minimum PWM Output Pulse Width:
Minimum Input Pulses that Can Be Captured:
www.ti.com ......................................................................................................................................................... SPNS110E – AUGUST 2005 – REVISED MAY 2008
This is equal to one high resolution clock period (HRP). The HRP is defined by the 6-bit high resolution prescale
factor (hr), which is user defined, giving prescale factors of 1 to 64, with a linear increment of codes.
Therefore, the minimum PWM output pulse width = HRP(min) = hr(min)/SYSCLK = 1/SYSCLK
For example, for a SYSCLK of 30 MHz, the minimum PWM output pulse width = 1/30 = 33.33ns
The input pulse width must be greater or equal to the low resolution clock period (LRP), i.e., the HET loop (the
HET program must fit within the LRP). The LRP is defined by the 3-bit loop-resolution prescale factor (lr), which
is user defined, with a power of 2 increment of codes. That is, the value of lr can be 1, 2, 4, 8, 16, or 32.
Therefore, the minimum input pulse width = LRP(min) = hr(min) * lr(min)/SYSCLK = 1 * 1/SYSCLK
For example, with a SYSCLK of 30 MHz, the minimum input pulse width = 1 * 1/30 = 33.33 ns
NOTE:
Once the input pulse width is greater than LRP, the resolution of the measurement is
still HRP. (That is, the captured value gives the number of HRP clocks inside the
pulse.)
Abbreviations:
hr = HET high resolution divide rate = 1, 2, 3,...63, 64
lr = HET low resolution divide rate = 1, 2, 4, 8, 16, 32
High resolution clock period = HRP = hr/SYSCLK
Loop resolution clock period = LRP = hr*lr/SYSCLK
Copyright 2005–2008, Texas Instruments Incorporated
53
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(shí)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(fēng)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(shí)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(fēng)格:SMD/SMT