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參數資料
| 型號： | MC56F8323 |
| 廠商： | 飛思卡爾半導體(中國)有限公司 |
| 英文描述： | 16-bit Hybrid Controller(16位混合控制器) |
| 中文描述： | 16位混合控制器（16位混合控制器） |
| 文件頁數： | 122/132頁 |
| 文件大?。?/td> | 2202K |
| 代理商： | MC56F8323 |
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122
56F8323 Technical Data
Preliminary
A, the internal [static component], is comprised of the DC bias currents for the oscillator, current,
PLL, and voltage references. These sources operate independently of processor state or operating
frequency.
B, the internal [state-dependent component], reflects the supply current required by certain on-chip
resources only when those resources are in use. These include RAM, Flash memory and the ADCs.
C, the internal [dynamic component], is classic C*V
2
*F CMOS power dissipation corresponding
to the 56800E core and standard cell logic.
D, the external [dynamic component], reflects power dissipated on-chip as a result of capacitive
loading on the external pins of the chip. This is also commonly described as C*V
2
*F, although
simulations on two of the IO cell types used on the 56800E reveal that the power-versus-load curve
does have a non-zero Y-intercept.
Power due to capacitive loading on output pins is (first order) a function of the capacitive load and
frequency at which the outputs change.
Table 10-25
provides coefficients for calculating power
dissipated in the IO cells as a function of capacitive load. In these cases:
TotalPower
=
Σ
((Intercept + Slope*Cload)*frequency/10MHz)
where:
Summation is performed over all output pins with capacitive loads
TotalPower is expressed in mW
Cload is expressed in pF
Because of the low duty cycle on most device pins, power dissipation due to capacitive loads was
found to be fairly low when averaged over a period of time.
E, the external [static component], reflects the effects of placing resistive loads on the outputs of
the device. Sum the total of all V
2
/R or IV to arrive at the resistive load contribution to power.
Assume V = 0.5 for the purposes of these rough calculations. For instance, if there is a total of eight
PWM outputs driving 10mA into LEDs, then P = 8*.5*.01 = 40mW.
In previous discussions, power consumption due to parasitics associated with pure input pins is
ignored, as it is assumed to be negligible.
Table 10-25 IO Loading Coefficients at 10MHz
Intercept
Slope
8mA CMOS 3-State Output Pad with Input-Enabled Pull-Up
1.3
0.11mW / pF
4mA CMOS 3-State Output Pad with Input-Enabled Pull-Up
1.15mW
0.11mW / pF
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關代理商/技術參數 |
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|---|---|
| MC56F8323EVM | 功能描述:開發(fā)板和工具包 - 其他處理器 MC56F832X Dev Kit RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MC56F8323EVM | 制造商:Freescale Semiconductor 功能描述:Tools Development kit Kit Con |
| MC56F8323EVME | 功能描述:開發(fā)板和工具包 - 其他處理器 MC56F8323 EVAL BRD RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MC56F8323EVME | 制造商:Freescale Semiconductor 功能描述:Evaluation Kit for MC56F832x and MC56F81 |
| MC56F8323MFB60 | 功能描述:數字信號處理器和控制器 - DSP, DSC 60MHz 60MIPS RoHS:否 制造商:Microchip Technology 核心:dsPIC 數據總線寬度:16 bit 程序存儲器大小:16 KB 數據 RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數量:35 定時器數量:3 設備每秒兆指令數: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 |
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