m35045 Renesas Electronics Corporation., m35045 Datasheet - Page 24
m35045
Manufacturer Part Number
m35045
Description
Screen Character And Pattern Display Controllers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M35045.pdf
(31 pages)
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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 V
Supply power to V
Fig. 10 Timing of power supplying to AC pin
After supplying the power (V
the supply voltage becomes more than 0.8
V
Start inputting from microcomputer after AC pin supply voltage
becomes more than 0.8
PRECAUTION FOR USE
In order to avoid noise and latch-up, connect a bypass capacitor
( 0.1µF) directly between the V
and V
Notes on noise and latch-up
IL
time; tw of the AC pin for more than 1ms.
SS
pin using a heavy wire.
0.8
0.2
V
V
V
DD1
DD
DD
DD
__
Voltage
and V
__
[V]
V
DD2
DD
DD
__
DD1
DD1
and V
and keeping 200ms wait time.
at the same time.
and V
pin and V
SS
) to M35045-XXXSP/FP and
DD2
__
.
SS
V
more than 1ms
pin, and the V
DD
, it needs to keep
Supply voltage
__
t
W
DD2
pin
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
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
V
(AC pin input voltage)
AC
MITSUBISHI MICROCOMPUTERS
t
S
M35045-XXXSP/FP
Time t
[
s
]
23