參數(shù)資料
型號： PSD4256G6
廠商： 意法半導體
英文描述： Current Mode PWM Controller 16-SOIC 0 to 70
中文描述： Flash在系統(tǒng)可編程ISP的周邊的16位微控制器
文件頁數(shù)： 73/100頁
文件大?。?/td> 759K
代理商： PSD4256G6
73/100
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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