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參數(shù)資料
| 型號(hào)： | PSD302-B-70U |
| 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 |
| 文件頁數(shù)： | 37/85頁 |
| 文件大小： | 691K |
| 代理商： | PSD302-B-70U |
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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 |
|---|---|
| PSD302-B-90JI | Low Cost Field Programmable Microcontroller Peripherals |
| PSD302-B-90LI | Low Cost Field Programmable Microcontroller Peripherals |
| PSD302-B-90MI | Low Cost Field Programmable Microcontroller Peripherals |
| PSD302-B-90UI | Low Cost Field Programmable Microcontroller Peripherals |
| PSD302R | Low Cost Field Programmable Microcontroller Peripherals |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD302B-70U | 功能描述:SPLD - 簡(jiǎn)單可編程邏輯器件 5.0V 512K 70ns RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池?cái)?shù)量:10 最大工作頻率:66 MHz 延遲時(shí)間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24 |
| PSD302-B-90JI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals |
| PSD302-B-90LI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals |
| PSD302-B-90MI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals |
| PSD302-B-90UI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost Field Programmable Microcontroller Peripherals |
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