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PSD4235G2 Datasheet(PDF) 67 Page - STMicroelectronics

Part # PSD4235G2
Description  Flash In-System-Programmable Peripherals for 16-Bit MCUs
PDF  93 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD4235G2 Datasheet(HTML) 67 Page - STMicroelectronics

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PSD4000 Series
Preliminary Information
64
AC/DC
Parameters
The following tables describe the AD/DC parameters of the PSD4000 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 PSD4000 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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