MN101LR05D/04D/03D/02D
8-bit Single-chip Microcontroller
Publication date: October 2014 14
PubNo. 21705-019E
1.4.2 Pin Description
Table:1.4.1 Power Supply/Oscillation/Reset/Mode Pin
..
The voltage level of VREFP must be over 0.8 V
DD30
at any time including LSI power on.
..
Pin name
Input/
Output
Description
MN101LR
05D/04D/03D
MN101LR
02D
VDD30
VSS
- Power supply pin
Connect the capacitor of 1 F or more between VDD30 and VSS.
Apply 0 V to VSS.
VDD18 - Internal power output pin
Connect the capacitor of 1 F between VDD18 and VSS to stable V
DD18
.
Connect the bypass capacitor of 0.1 F between VDD18 and VSS.
VDD11 - Internal power output pin (1.1 V)
Connect the capacitor of 1 F or more between VDD11 and VSS.
VLC1
VLC2
VLC3
- - LCD power supply pin
Supply the power under the following conditions.
(V
DD30
V
LC1
3.6 V and 0 V V
LC3
V
LC2
V
LC1
)
Capacitors described in [17.3.4 LCD Drive Voltage Selection] must be connected in each pin.
When LCD function is not used, connect V
LC1
to V
DD30
.
C1
C2
- - LCD voltage boost capacitor pin
When using the internal LCD booster circuit, connect the capacitor of 0.22 F between C1 and
C2.
VREFP - ADC Reference power supply pin
When ADC is not used, connect VREFP to VDD30.
The voltage level of VREFP must be over 0.8 V
DD30
at any time including LSI power on.
OSC1
OSC2
- Input
Output
External high-speed oscillation pin
When the external high-speed oscillation is needed, connect the oscillator to the pins.
The external clock can be input through OSC1, and leave OSC2 open.
XI
XO
Input
Output
External low-speed oscillation pin
When the external low-speed oscillation is needed, connect the oscillator to the pins.
NRST Input
Output
Reset pin (N-channel open drain pin)
When NRST is set to "Low", LSI is initialized. LSI reset condition is described in [2.5 Reset].
DMOD Input Mode setting pin
Always set DMOD to "Low" level, except for connecting the external LSI debugger or serial pro-
grammer.
NATRON Input Auto reset control pin
To use the auto reset function, set NATRON to "Low" level.
If not, set NATRON to "High" level.
