psd4235g2v STMicroelectronics, psd4235g2v Datasheet - Page 101

• Manufacturer Part Number: psd4235g2v
• Description: Flash In-system Programmable Isp Peripherals For 16-bit Mcus 3.3 V Supply
• Manufacturer: STMicroelectronics

PSD4235G2V
25
DC and AC parameters
These tables describe the AD and DC parameters of the PSD4235G2V:
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The parameters in the DC and AC Characteristic tables that follow are derived from tests
performed under the Measurement Conditions summarized in the relevant tables. Designers
should check that the operating conditions in their circuit match the measurement conditions
when relying on the quoted parameters.
The following are issues concerning the parameters presented:
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●
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Figure 34. PLD I
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 PSD is in each mode. Also, the supply power is considerably different if the Turbo
bit is 0.
The AC power component gives the PLD, Flash memory, and SRAM mA/MHz
specification.
Terms (PT) used.
In the PLD timing parameters, add the required delay when Turbo bit is 0.
PLD timing
Combinatorial timing
Synchronous clock mode
Asynchronous clock mode
Input macrocell timing
MCU timing
READ timing
WRITE timing
Peripheral mode timing
Power-down and Reset timing
60
50
40
30
20
10
0
0
Figure 34
CC
V
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
CC
/frequency consumption
= 3V
5
show the PLD mA/MHz as a function of the number of Product
10
15
20
PT 100%
PT 25%
DC and AC parameters
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