PSD4203G2-90 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'PSD4203G2-90' PDF : 93 Pages View PDF
PSD4000 Series
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
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
Preliminary Information
68
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