ZPSD302B-90JI View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ZPSD302B-90JI Datasheet PDF : 85 Pages
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PSD3XX Family
Figure 25. Timing of 16-Bit Multiplexed Address/Data Bus Using RD, WR (PSD3X2/3X3)
CSI/A19
as CSI
Direct (1)
PAD Input
Multiplexed (2)
Inputs
READ CYCLE
32
7
STABLE INPUT
6
6
WRITE CYCLE
32
15
32
STABLE INPUT
14
14
BHE/PSEN
as BHE
t(s) A0/AD0-
A15/AD15
duc Active High
ro ALE
P Active Low
te ALE
sole RD/E/DS as RD
) - Ob WR/VPP or
t(s R/W as WR
c Any of
u PA0-PA7
d as I/O Pin
Pro Any of
te PB0-PB7
as I/O Pin
oleAny of
sPA0-PA7 Pins
b as Address
O Outputs
10
ADDRESS A
2
3
4
1
DATA VALID
9
8
5
13
12
18
19
INPUT
INPUT
23
ADDRESS A
ADDRESS B
2
3
1
11
DATA
IN
17
16
36
13
12A
20
OUTPUT
OUTPUT
23
ADDRESS B
See referenced notes on page 64.
49
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