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PSD835G2 bảng dữ liệu(PDF) 78 Page - STMicroelectronics

tên linh kiện PSD835G2
Giải thích chi tiết về linh kiện  Flash PSD, 5V Supply, for 8-bit MCUs 4 Mbit 256 Kbit Dual Flash Memories and 64 Kbit SRAM
PDF  102 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD835G2 bảng dữ liệu(HTML) 78 Page - STMicroelectronics

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PSD835G2
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AC/DC PARAMETERS
The tables provided below describe the AD and
DC parameters of the PSD:
❏
DC Electrical Specification
❏
AC Timing Specification
■
PLD Timing
–
Combinatorial Timing
–
Synchronous Clock Mode
–
Asynchronous Clock Mode
–
Input Macrocell Timing
■
MCU Timing
–
READ Timing
–WRITE Timing
–
Peripheral Mode Timing
–
Power-down and Reset Timing
The following are issues concerning the parame-
ters presented:
–
In the DC specification the supply current is
given for different modes of operation. Before
calculating the total power consumption,
determine the percentage of time that the PSD
is in each mode. Also, the supply power is
considerably different if the Turbo Bit is '0.'
–
The AC power component gives the PLD,
Flash memory, and SRAM mA/MHz
specification. Figure 34 show the PLD mA/
MHz as a function of the number of Product
Terms (PT) used.
–
In the PLD timing parameters, add the
required delay when Turbo Bit is '0.'
Figure 34. PLD ICC /Frequency Consumption
0
10
20
30
40
60
70
80
90
100
110
VCC = 5V
50
010
15
5
20
25
HIGHEST COMPOSITE FREQUENCY AT PLD INPUTS (MHz)
TUR
BO
ON
(100%
)
TURBO
ON
(25%)
TURBO
OFF
PT 100%
PT 25%
AI02894



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