PSD4235G3V-15UI 查看數據表（PDF） - STMicroelectronics

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PSD4235G3V-15UI

Flash In-System Programmable ISP Peripherals For 16-bit MCUs 5V Supply

STMicroelectronics 

PSD9XX Family

Microcontroller

Interface –

AC/DC

Parameters

(5V ± 10% Versions)

AC Symbols for PLD Timing.

Example: t AVLX – Time from Address Valid to ALE Invalid.

Signal Letters

A – Address Input

C – CEout Output

D – Input Data

E – E Input

I – Interrupt Input

L – ALE Input

N – Reset Input or Output

P – Port Signal Output

R – UDS, LDS, DS, RD, PSEN Inputs

S – Chip Select Input

T – R/W Input

W – WR Input

B – Vstby Output

M – Output Micro⇔Cell

PSD935G2

Signal Behavior

t – Time

L – Logic Level Low or ALE

H – Logic Level High

V – Valid

X – No Longer a Valid Logic Level

Z – Float

PW – Pulse Width

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