參數資料
型號: M35054-XXXFP
元件分類: 顯示控制器
英文描述: 24 X 10 CHARACTERS CRT CHAR DSPL CTLR, PDSO20
封裝: 0.300 INCH, PLASTIC, SSOP-20
文件頁數: 24/41頁
文件大?。?/td> 489K
代理商: M35054-XXXFP
M35054-XXXFP/M35055-XXXFP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
MITSUBISHI MICROCOMPUTERS
29
Note for Supplying Power
(1)
__
Timing of power supplying to AC pin
The internal circuit of M35054-XXXFP/ M35055-XXXFP is reset
__
when the level of the auto clear input pin AC is “L”. This pin is
hysteresis input with the pull-up resistor. The timing about power
__
supplying of AC pin is shown in Figure 16. tW is the interval after
the supply voltage becomes 0.8 ! VDD or more and before the
__
supply voltage to the AC pin (VAC) becomes 0.2 ! VDD or more.
After supplying the power (VDD and VSS) to M35054-XXXFP/
M35055-XXXFP, the tW time must be reserved for 1ms or more.
Before starting input from the microcomputer, the waiting time
(ts) must be reserved for 500ms after the supply voltage to the
__
AC pin becomes 0.8 ! VDD or more.
(2) Timing of power supplying to VDD1 pin and VDD2 pin
The power need to supply to VDD1 and VDD2 at a time, though it
is separated perfectly between the VDD1 as the digital line and
the VDD2 as the analog line.
ROM ORDERING METHOD
Please submit the information described below when ordering Mask
ROM.
(1) ROM Order Confirmation Form ................................................. 1
(2) Data to be written into mask ROM ................................ EPROM
(three sets containing the identical data)
(3) Mark Specification Form ............................................................ 1
(4) Program for character font generating + froppy disk in which char-
acter data is input
PRECAUTION FOR USE
Notes on noise and latch-up
Connect a capacitor (approx. 0.1 F) between pins VDD and VSS at
the shortest distance using relatively thick wire to prevent noise and
latch up.
__
Fig. 17 Timing of power supplying to AC pin
Supply voltage
VDD
VAC
ts
Voltage [V]
Time t [s]
(AC pin input voltage)
0.8!VDD
0.2!VDD
tw
相關PDF資料
PDF描述
M35055-XXXFP 24 X 10 CHARACTERS CRT CHAR DSPL CTLR, PDSO20
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M35061-XXXFP 40 X 17 CHARACTERS CRT CHAR DSPL CTLR, PDSO32
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