PSD813F2 datasheet(92/128 Pages) STMICROELECTRONICS

92 / 128 page

AC/DC parameters

PSD8XXFX

92/128

Doc ID 7833 Rev 7

AC/DC parameters

This section summarizes the operating and measurement conditions, and the DC and AC

characteristics of the device:

●

DC electrical specifications

●

AC timing specifications

–

PLD timings

Combinatorial timings

Synchronous clock mode

Asynchronous clock mode

Input macrocell timings

–

MCU timings

READ timings

WRITE timings

Peripheral mode timings

Power-down and Reset timings

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:

●

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. Figure 34 and Figure 35 show 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 ’0.’

PSD813F2 Datasheet(PDF) 92 Page - STMicroelectronics