m35076 Renesas Electronics Corporation., m35076 Datasheet - Page 34

• Manufacturer Part Number: m35076
• Description: Screen Character And Pattern Display Controllers
• Manufacturer: Renesas Electronics Corporation.

NOTE FOR SUPPLYING POWER
Fig. 19
Set horizontal synchronous signal edge waveform timing to under
5ns and input to HOR pin.
Set only the side which set by B/F register waveform timing under
5ns and input to HOR pin.
PRECAUTION FOR USE
In order to avoid noise and latch-up, connect a bypass capacitor
( 0.1 F) directly between the V
pin and V
(1)Timing of power supplying to AC pin
Note for waveform timing of the horizontal signals to the HOR pin
Notes on noise and latch-up
: Set front porch edge or back porch edge by B/F register.
Horizontal synchronous signal
The internal circuit of M35076-XXXSP 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 19.
Timing of power supplying to AC pin
SS2
0.8 x V
0.2 x V
pin using a heavy wire.
V
DD
DD
DD
Voltage [V]
90%
10%
__
DD1
__
tf
_
more than 1ms
pin and V
__
Supply voltage
t
W
__
SS1
tr
_
pin, and the V
DD2
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
DATA REQUIRED FOR MASK ROM
ORDERING
Please send the following data for mask orders.
(1) M35076-XXXSP mask ROM order confirmation form
(2) 20P4B mark specification form
(3) ROM data : EPROMs or floppy disks
(2)Timing of power supplying to V
Data input disable
After supplying the power (V
the supply voltage becomes more than 0.8 V
V
Start inputting from microcomputer after AC pin supply voltage
becomes more than 0.8
Supply power to V
*In the case of EPROMs, thres sets of EPROMs are required
*In the case of floppy disks, 3.5-inch 2HD disk (1BM format) is
per pattern.
required per pattern.
IL
time; tw of the AC pin for more than 1ms.
t
S
M35076-XXXSP
__
DD1
MITSUBISHI MICROCOMPUTERS
and V
V
DD
DD2
DD
V
(AC pin input voltage)
Time t [s]
and keeping 200ms wait time.
DD1
AC
and V
at the same time.
and V
SS
) to M35076-XXXSP and
DD2
__
.
DD
, it needs to keep
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