參數(shù)資料
型號： MC56F8346
廠商： Motorola, Inc.
英文描述： 56F8346 16-bit Hybrid Controller
中文描述： 56F8346 16位混合控制器
文件頁數(shù)： 148/160頁
文件大?。?/td> 1415K
代理商： MC56F8346
148
56F8346 Technical Data
Preliminary
A, the internal [static component], is comprised of the DC bias currents for the oscillator, leakage
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 56F8346 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. The one possible exception to this is
if the chip is using the external address and data buses at a rate approaching the maximum system
rate. In this case, power from these buses can be significant.
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 8
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
PDU08DGZ_ME
1.3
0.11mW / pF
PDU04DGZ_ME
1.15mW
0.11mW / pF
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
相關(guān)PDF資料
PDF描述
MC56F8346MFV60 56F8346 16-bit Hybrid Controller
MC56F8346VFV60 56F8346 16-bit Hybrid Controller
MC56F8356 56F8356 16-bit Hybrid Controller
MC56F8356VFV60 56F8356 16-bit Hybrid Controller
MC56F8356MFV60 56F8356 16-bit Hybrid Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC56F8346EVM 制造商:Freescale Semiconductor 功能描述:Tools Development kit Kit Contents:Inst
MC56F8346MFV60 功能描述:數(shù)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(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
MC56F8346MFVE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER 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
MC56F8346VFV60 功能描述:數(shù)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(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
MC56F8346VFVE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR 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
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