參數(shù)資料
型號(hào)： PSD301R-A-20JM
廠商： 意法半導(dǎo)體
英文描述： Low Cost Field Programmable Microcontroller Peripherals
中文描述： 低成本現(xiàn)場(chǎng)可編程微控制器外圍設(shè)備
文件頁(yè)數(shù)： 37/85頁(yè)
文件大小： 691K
代理商： PSD301R-A-20JM
PSD3XX Famly
34
Conditions
Part Used
MCU ALE Clock Frequency
Composite ZPLD Input Frequency
% EPROM Access
% SRAM Access
% I/O access
%Time CSI is high (standby mode)
%Time CSI is low (normal operation mode)
# Product terms used (see previous section) = 13 (13/40 = 33%)
Turbo bit
CMiser bit
MCU Bus Configuration
= ZPSD3XX (V
CC
= 5.0 V)
= 2.0 MHz
= 8.0 MHz (see example in above section)
= 80%
= 15%
= 5%
= 90%
= 10%
= OFF (Turbo Mode disabled)
= ON
= 8-bit multiplexed bus mode
Calculation (Based on Typical AC and DC Currents)
I
CC
total = Istandby x % time CSI is high +
[
I
CC
(AC) + I
CC
(DC)
]
x % time CSI is low.
= Istandby x % time CSI is high +
[% EPROM Access x 0.8 mA/MHz x Freq. of ALE
+ % SRAM x 1.4 mA/MHz x Freq of ALE
+ ZPLD AC current (Figure 14: 13 PTs, 8 MHz, Non-Turbo)
]
x % time CSI is low
= 10 μA x 0.9 + (0.8 x 0.8 mA/MHz x 2 MHz + 0.15 x 1.4 mA/MHz x 2 MHz
+ 5.0 mA) x 0.1
= 9.0 μA + (1.28 mA + 0.42 mA + 5.0 mA) x 0.1
= 679 μA, based on the system operating in standby 90% of the time
Once you have read the “Power Management” section, you should be able to calculate
power. The following is a sample power calculation:
17.
Calculating
Power
NOTES
: 1. Calculation is based on the assumption that I
OUT
= 0 mA (no I/O pin loading)
2. I
CC
(DC) is zero for all ZPSD devices operating in non-turbo mode.
3. 13 product terms: 8 for EPROM, 3 for Chip Selects, 1 for SRAM, 1 for CSIOPORT.
4. The 5% I/O access in the conditions section is when the MCU accesses CSIOPORT space.
5. Standby Mode can also be achieved without using the CSI pin. The ZPSD device will automatically
go into Standby while no inputs are changing on any pin, and Turbo Mode is disabled.
相關(guān)PDF資料
PDF描述
PSD301R-A-25J Low Cost Field Programmable Microcontroller Peripherals
PSD301R-A-25JI Low Cost Field Programmable Microcontroller Peripherals
PSD301R-A-25JM Low Cost Field Programmable Microcontroller Peripherals
PSD301R-A-70J Low Cost Field Programmable Microcontroller Peripherals
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PSD301R-A-25J 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD301R-A-25JI 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD301R-A-25JM 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD301R-A-70J 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
PSD301R-A-70JI 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals
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