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PSD312 Datasheet(PDF) 50 Page - STMicroelectronics

Part # PSD312
Description  Low Cost Field Programmable Microcontroller Peripherals
PDF  85 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD312 Datasheet(HTML) 50 Page - STMicroelectronics

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PSD3XX Family
47
Figure 23. Timing of 8-Bit Multiplexed Address/Data Bus Using R/W E or R/W, DS
(PSD3X2/3X3)
18
33
34
36
19
DATA VALID
CSI/A19
as CSI
DATA
IN
8
12
5
1
32
7
15
32
32
14
14
6
6
10
9
ADDRESS A
ADDRESS B
2
3
4
33
13
2
16
17
12
13
20
23
23
ADDRESS A
ADDRESS B
INPUT
INPUT
OUTPUT
OUTPUT
READ CYCLE
WRITE CYCLE
STABLE INPUT
STABLE INPUT
Direct (1)
PAD Input
Multiplexed (2)
Inputs
A0/AD0-
A7/AD7
Active Low
AS
Active High
AS
RD/E/DS as E
WR/VPP or
R/W as R/W
Any of
PA0-PA7
as I/O Pin
Any of
PA0-PA7 Pins
as Address
Outputs
Any of
PB0-PB7
as I/O Pin
1
3
34
35
RD/E/DS as DS
35
See referenced notes on page 64.



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