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PSD935G2 데이터시트(PDF) 65 Page - STMicroelectronics

부품명 PSD935G2
상세설명  Configurable Memory System on a Chip for 8-Bit Microcontrollers
PDF  91 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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PSD935G2 데이터시트(HTML) 65 Page - STMicroelectronics

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PSD9XX Family
PSD935G2 Beta Information
64
AC/DC
Parameters
The following tables describe the AD/DC parameters of the PSD9XX family:
t DC Electrical Specification
t AC Timing Specification
• PLD Timing
– Combinatorial Timing
• Microcontroller Timing
– Read Timing
– Write Timing
– Power Down and Reset Timing
Following are issues concerning the parameters presented:
t In the DC specification the supply current is given for different modes of operation.
Before calculating the total power consumption, determine the percentage of time that
the PSD9XX is in each mode. Also, the supply power is considerably different if the
Turbo bit is "OFF".
t The AC power component gives the PLD, Flash memory, and SRAM mA/MHz
specification. Figures 27 and 27a show the PLD mA/MHz as a function of the number
of Product Terms (PT) used.
t In the PLD timing parameters, add the required delay when Turbo bit is "OFF".
Figure 27. PLD ICC /FrequencyConsumption (VCC = 5 V ± 10%)
0
10
20
30
40
60
70
80
90
100
110
VCC = 5V
50
010
15
5
20
25
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
TURBO
ON
(100%)
TURBO
ON
(25%)
TURBO
OFF
PT 100%
PT 25%



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