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M35045 bảng dữ liệu(PDF) 23 Page - Mitsubishi Electric Semiconductor

tên linh kiện M35045
Giải thích chi tiết về linh kiện  SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
PDF  37 Pages
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nhà sản xuất  MITSUBISHI [Mitsubishi Electric Semiconductor]
Trang chủ  http://www.mitsubishichips.com
Logo MITSUBISHI - Mitsubishi Electric Semiconductor

M35045 bảng dữ liệu(HTML) 23 Page - Mitsubishi Electric Semiconductor

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MITSUBISHI MICROCOMPUTERS
M35045-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
Note for Supplying Power
__
Timing of power supplying to AC pin
The internal circuit of M35045-XXXSP/FP is reset when the level of
__
the auto clear input pin AC is “L”. This pin in hysteresis input with the
__
pull-up resistor. The timing about power supplying of AC pin is shown
in Figure 10.
Timing of power supplying to VDD1 and VDD2.
Supply power to VDD1 and VDD2 at the same time.
Fig. 10 Timing of power supplying to AC pin
DATA REQUIRED FOR MASK ROM ORDERING
Please send the following data for mask orders.
(1) M35045-XXXSP/FP mask ROM order confirmation form
(2) 20P4B mask specification form
(3) ROM data (EPROM 3 sets)
(4) Floppy disks containing the character font generating program
+ character data
Supply voltage
VAC
(AC pin input voltage)
0.8
× VDD
0.2
× VDD
tW
tS
VDD
Time t[s]
more than 1ms
Voltage
[V]
After supplying the power (VDD and VSS) to M35045-XXXSP/FP and
the supply voltage becomes more than 0.8
× VDD, it needs to keep
__
VIL time; tw of the AC pin for more than 1ms.
__
Start inputting from microcomputer after AC pin supply voltage
becomes more than 0.8 ! VDD and keeping 200ms wait time.
PRECAUTION FOR USE
Notes on noise and latch-up
In order to avoid noise and latch-up, connect a bypass capacitor
(
≈0.1µF) directly between the VDD1 pin and VSS pin, and the VDD2 pin
and VSS pin using a heavy wire.



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