PSD934210MIT datasheet(63/89 Pages) STMICROELECTRONICS

Part #	PSD934210MIT

Description	Flash PSD, 3.3V Supply, for 8-bit MCUs 2 Mbit 256 Kbit Dual Flash Memories and 64 Kbit SRAM

PDF	89 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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63 / 89 page

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PSD834F2V

AC/DC PARAMETERS

These tables describe the AD and DC parameters

of the PSD:

t DC Electrical Specification

t 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.

Figure 32 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 0.

Figure 32. PLD ICC /Frequency Consumption

VCC = 3V

010

TURBO

ON (100%)

TURBO

ON (25%)

TURBO

OFF

HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)

PT 100%

PT 25%

AI03100

PSD934210MIT Datasheet(PDF) 63 Page - STMicroelectronics

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