PSD303-B-70L 查看數據表（PDF） - STMicroelectronics
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PSD303-B-70L Datasheet PDF : 85 Pages
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PSD3XX Family
Figure 24. Timing of 16-Bit Multiplexed Address/Data Bus Using RD, WR (PSD3X1)
CSI/A19
as CSI
Direct (1)
PAD Input
READ CYCLE
32
7
STABLE INPUT
6
WRITE CYCLE
32
15
32
STABLE INPUT
14
Multiplexed (2)
Inputs
ct(s) BHE/PSEN
u as BHE
Prod t(s) A0/AD0-
A15/AD15
lete duc Active High
so ro ALE
b P Active Low
- O te ALE
t(s) sole RD/E as RD
roduc ) - Ob WR/VPP or
P t(s R/W as WR
te c Any of
le u PA0-PA7
d as I/O Pin
bso Pro Any of
O te PB0-PB7
as I/O Pin
ole Any of
s PA0-PA7 Pins
b as Address
OOutputs
6
10
ADDRESS A
2
3
4
1
8
5
DATA VALID
9
13
12
18
19
INPUT
INPUT
23
ADDRESS A
14
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.
48
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