PSD4235G2V-10UI datasheet(81/100 Pages) STMICROELECTRONICS

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PSD4256G6V

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

DC AND AC PARAMETERS

This section summarizes the operating and mea-

surement conditions, and the DC and AC charac-

teristics of the device. The parameters in the DC

and AC Characteristic tables that follow are de-

rived from tests performed under the Measure-

ment 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 parame-

ters.

Table 56. Operating Conditions

Table 57. AC Symbols for PLD Timing

Example: tAVLX – Time from Address Valid to ALE Invalid.

Table 58. AC Measurement Conditions

Note: 1. Output Hi-Z is defined as the point where data out is no longer driven.

Symbol

Parameter

Min.

Max.

Unit

VCC

Supply Voltage

2.7

3.6

Ambient Operating Temperature (industrial)

–40

°C

Ambient Operating Temperature (commercial)

°C

Signal Letters

Signal Behavior

Address Input

Time

CEout Output

Logic Level Low or ALE

Input Data

Logic Level High

E Input

Valid

Interrupt Input

No Longer a Valid Logic Level

ALE Input

Float

RESET Input or Output

Pulse Width

Port Signal Output

RUDS, LDS, DS, RD, PSEN Inputs

Chip Select Input

TR/W Input

WR Input

VSTBY Output

Output Macrocell

Symbol

Parameter

Min.

Max.

Unit

Load Capacitance

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