PSD835G2V-12U STMicroelectronics, PSD835G2V-12U Datasheet - Page 67
PSD835G2V-12U
Manufacturer Part Number
PSD835G2V-12U
Description
Manufacturer
STMicroelectronics
Datasheet
1.PSD835G2V-12U.pdf
(120 pages)
Specifications of PSD835G2V-12U
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Package Type
TQFP
Mounting
Surface Mount
Pin Count
80
Lead Free Status / Rohs Status
Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PSD835G2V-12UI
Manufacturer:
INFINEON
Quantity:
3 392
Company:
Part Number:
PSD835G2V-12UI
Manufacturer:
STMicroelectronics
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PSD835G2V
16.1
Figure 19. An example of a typical 8-bit multiplexed bus interface
16.2
RESET
MCU
PSD interface to a multiplexed 8-bit bus
Figure 19
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 E, For G. 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 F may be used as additional address
inputs.
PSD interface to a non-multiplexed 8-bit bus
Figure 20
and a PSD. The address bus is connected to the ADIO port, and the data bus is connected
to port F. port F is in tri-state mode when the PSD is not accessed by the MCU. Should the
system address bus exceed sixteen bits, ports A, B or C may be used for additional address
inputs.
BHE
ALE
WR
RD
shows an example of a system using a MCU with an 8-bit multiplexed bus and a
shows an example of a system using a MCU with an 8-bit non-multiplexed bus
AD7-AD0
A15-A8
Doc ID 10585 Rev 3
PSD
WR ( CNTRL0 )
RD ( CNTRL1 )
BHE ( CNTRL2 )
RST
ALE ( PD0 )
PORT D
PORT
ADIO
PORT
PORT
PORT
A, B
or C
G
F
MCU bus interface
(OPTIONAL)
( OPTIONAL )
( OPTIONAL )
A23-A16
A7-A0
A15-A8
AI02878D
67/120
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