M35054 MITSUBISHI [Mitsubishi Electric Semiconductor], M35054 Datasheet - Page 29

• Manufacturer Part Number: M35054
• Description: SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS???
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

PRECAUTION FOR USE
Connect a capacitor (approx. 0.1 ˚F) between pins V
the shortest distance using relatively thick wire to prevent noise and
latch up.
Note for Supplying Power
(1)
Fig. 17 Timing of power supplying to AC pin
Notes on noise and latch-up
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. t
the supply voltage becomes 0.8
supply voltage to the AC pin (V
After supplying the power (V
M35055-XXXFP, the t
__
V
DD
__
W
time must be reserved for 1ms or more.
__
DD
AC
__
and V
) becomes 0.2
V
DD
__
SS
or more and before the
) to M35054-XXXFP/
Supply voltage
__
W
is the interval after
DD
V
DD
and V
or more.
SS
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
at
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
(3) Mark Specification Form ............................................................ 1
(4) Program for character font generating + froppy disk in which char-
(2) Timing of power supplying to V
M35054-XXXFP/M35055-XXXFP
acter data is input
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
The power need to supply to V
is separated perfectly between the V
the V
DD
2 as the analog line.
ts
MITSUBISHI MICROCOMPUTERS
V
AC
V
(three sets containing the identical data)
DD
or more.
DD
DD
1 and V
1 pin and V
DD
1 as the digital line and
DD
2 at a time, though it
DD
2 pin
29