PSD813F2 datasheet(72/110 Pages) STMICROELECTRONICS

72 / 110 page

PSD813F2, PSD833F2, PSD834F2, PSD853F2, PSD854F2

72/110

AC/DC PARAMETERS

These tables describe the AD and DC parameters

of the PSD:

❏

DC Electrical Specification

❏

AC Timing Specification

■

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

The following are issues concerning the parame-

ters 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. Figures 35 and 36 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.’

Figure 35. PLD ICC /Frequency Consumption (5V range)

Figure 36. PLD ICC /Frequency Consumption (3V range)

100

110

VCC = 5V

010

HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)

TUR

(100%

)

TURBO

(25%)

TURBO

OFF

PT 100%

PT 25%

AI02894

VCC = 3V

010

TURBO

ON (100%)

TURB

O ON

(25%

)

O O

HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)

PT 100%

PT 25%

AI03100

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