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PSD4235G2V-10UI データシート(PDF) 49 Page - STMicroelectronics

部品番号 PSD4235G2V-10UI
部品情報  Flash In-System Programmable (ISP) Peripherals for 16-bit MCUs
PDF  100 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD4235G2V-10UI データシート(HTML) 49 Page - STMicroelectronics

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PSD4256G6V
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
PSD Interface to a Non-Multiplexed, 16-bit Bus
Figure 20 shows an example of a system using an
MCU with a 16-bit, non-multiplexed bus and a
PSD4256G6V. The address bus is connected to
the ADIO Port, and the data bus is connected to
Ports F and G. Ports F and G are in tri-state mode
when the PSD is not accessed by the MCU.
Should the system address bus exceed sixteen
bit, Ports A, B, or C may be used for additional ad-
dress inputs.
Figure 20. An Example of a Typical Non-Multiplexed Bus Interface
Note: 1. D[15:8] is for 16-bit MCU
MCU
WR
RD
BHE
ALE
RESET
D [ 15:0]
A[ 15:0]
D[15:8]1
D [ 7:0]
ADIO
PORT
PORT
F
PORT
G
PORT
A
WR (CNTRL0)
RD (CNTRL1)
BHE (CNTRL2)
RST
ALE (PD0)
PORT D
PSD
AI04929B
A[ 23:16]
(OPTIONAL)



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