psd934f2v-20mi STMicroelectronics, psd934f2v-20mi Datasheet - Page 67

• Manufacturer Part Number: psd934f2v-20mi
• Description: Flash In-system Programmable Isp Peripherals For 8-bit Mcus
• Manufacturer: STMicroelectronics

AC/DC
Parameters
Preliminary Information
Figure 26. PLD I
The following tables describe the AD/DC parameters of the PSD9XX family:
Following are issues concerning the parameters presented:
DC Electrical Specification
AC Timing Specification
•
•
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".
The AC power component gives the PLD, Flash memory, and SRAM mA/MHz
specification. Figure 26 shows the PLD mA/MHz as a function of the number
of Product Terms (PT) used.
In the PLD timing parameters, add the required delay when Turbo bit is "OFF".
PLD Timing
– Combinatorial Timing
Microcontroller Timing
– Read Timing
– Write Timing
– Power Down and Reset Timing
110
100
90
80
70
60
50
40
30
20
10
0
0
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
V
CC
CC
/FrequencyConsumption
= 5V
5
10
(V
CC
15
= 5 V ± 10%)
PT 100%
PT 25%
20
PSD9XX Family
25
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