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PSD4235G2V-10UI Datasheet(PDF) 73 Page - STMicroelectronics

No. de pieza PSD4235G2V-10UI
Descripción Electrónicos  Flash In-System Programmable (ISP) Peripherals for 16-bit MCUs
PDF  100 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD4235G2V-10UI Datasheet(HTML) 73 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.
Input Control Signals
The PSD provides the option to turn off the ad-
dress input (A7-A0) and input control signals
(CNTL0, CNTL1, CNTL2, Address Strobe (ALE/
AS, PD0) and WRITE-Enable High-byte (WRH/
DBE, PD3)) to the PLD to save AC power con-
sumption. These signals are inputs to the PLD
AND Array. During Power-down mode, or, if any of
them are not being used as part of the PLD logic
equation, these control signals should be disabled
to save AC power. They are disconnected from the
PLD AND Array by setting bits 0, 2, 3, 4, 5 and 6
to a 1 in PMMR2.
Table 50. ADP Counter Operation
APD Enable Bit
ALE PD Polarity
ALE Level
APD Counter
0
X
X
Not Counting
1
X
Pulsing
Not Counting
1
1
1
Counting (Generates PDN after 15 Clocks)
1
0
0
Counting (Generates PDN after 15 Clocks)



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