PSD813F2VA-15MI STMicroelectronics, PSD813F2VA-15MI Datasheet - Page 44
PSD813F2VA-15MI
Manufacturer Part Number
PSD813F2VA-15MI
Description
Manufacturer
STMicroelectronics
Datasheet
1.PSD813F2VA-15MI.pdf
(109 pages)
Specifications of PSD813F2VA-15MI
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Package Type
PQFP
Mounting
Surface Mount
Pin Count
52
Lead Free Status / Rohs Status
Compliant
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Part Number
Manufacturer
Quantity
Price
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PSD813F2V, PSD854F2V
PSD Interface to a Multiplexed 8-Bit Bus
Figure
MCU with an 8-bit multiplexed bus and a PSD. The
ADIO port on the PSD is connected directly to the
MCU address/data bus. Address Strobe (ALE/AS,
PD0) latches the address signals internally.
Latched addresses can be brought out to Port A or
Figure 19. An Example of a Typical 8-bit Multiplexed Bus Interface
44/109
19
RESET
MCU
shows an example of a system using a
BHE
ALE
WR
RD
AD [ 7:0 ]
A [ 15:8 ]
Doc ID 10552 Rev 3
B. The PSD drives the ADIO data bus only when
one of its internal resources is accessed and Read
Strobe (RD, CNTL1) is active. Should the system
address bus exceed sixteen bits, Ports A, B, C, or
D may be used as additional address inputs.
PSD
WR ( CNTRL0 )
RD ( CNTRL1 )
BHE ( CNTRL2 )
RST
ALE ( PD0 )
PORT D
PORT
ADIO
PORT
PORT
PORT
A
B
C
( OPTIONAL )
( OPTIONAL )
A [ 7: 0 ]
A [ 15: 8 ]
AI02878C
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