mpc82g516a Megawin Technology, mpc82g516a Datasheet - Page 129

• Manufacturer Part Number: mpc82g516a
• Description: 8-bit Microcontroller
• Manufacturer: Megawin Technology

27.1.2 Power Supply for a 5V or Wide-Range System
To have the MPC82G516A work in a 5V system with power supply varying from 2.7V to 5.5V, pin V30
not
Figure 27-3. Power Supplied to a 5V or Wide-Range System
27.2 Reset Circuit
Normally, the power-on reset can be successfully generated during power-up. However, to further ensure the
MCU a reliable reset during power-up, the external reset is necessary. Figure 27-4 shows the external reset
circuit, which consists of a capacitor C
VSS (ground).
In general, R
resistor to VSS permits a power-up reset using only an external capacitor C
See
Figure 27-4. Reset Circuit
129
be tied to VDD and an external ripple-filtering capacitor is necessary, as shown in Figure 27-3.
Normally, 1.0uF~3.3uF
Section 30: DC Characteristics
Normally, 100KΩ
EXT
is optional because the RST pin has an internal pull-down resistor (R
MPC82G516A
VSS
V
CC
(Optional)
C
R
EXT
EXT
VDD
V30
for R
VDD
VSS
RST
EXT
MPC82G516A Data Sheet
RST
Power Supply
MPC82G516A
connected to VDD (power supply) and a resistor R
.
4.7uF~100uF
R
RST
EXT
to VDD.
RST
). This internal diffused
EXT
connected to
MEGAWIN
should