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R01UH0336EJ0102 Rev.1.02
Page 1493 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 26 Power Supply Configuration
Section 26 Power Supply Configuration
This product includes regulators for the power supplies as illustrated in the
flowing figure.
Connect a capacitor to the REGCn pins for the regulators to stabilize their
output. The regulators operate whenever the power supply is turned on.
(1)
List of Pins
The following table lists the pins used for the power supply.
(2)
Schematic Diagram of the Power Supply Configuration
The following figure shows the schematic diagram of the power supply
configuration
Figure 26-1
Schematic Diagram of the Power Supply Configuration
Table 26-1
List of Pins Used for the Power Supply
Pin Name
Function
Pin Number
EVDD
Power supply for flash memory and external pins
25, 59, 60, 98
VDD
Power supply for internal regulators and POF/LVI
CREG: 7
Main: 8, 36, 65, 96
OSCVDD
Power supply for the oscillator
15
AVDD
Power supply for the AD converter
76
REGC0
Pin for connecting the capacitor for the internal
regulator (for CREG)
5
REGC1
Pin for connecting the capacitor for the internal
regulator (for the main power supply)
10
I/O buffer area
EVDD
VDD(*1)
VDD(*2)
OSCVDD
AVDD
POF/LVI
Monitoring
Reference
voltage
Reference
voltage
Regulator (CREG)
Regulator
(for the main power supply)
Regulator
(for the main power supply)
OSC
ADCA
Checker core area
Checker CPU
Compare unit
CLM
WDT
Master CPU
Data flash
Code flash
REGC1
REGC0
PLL
Internal
OSC
Peripheral
function
*1: Pin no.7
*2: Pins no.8, 36, 65, 96
Main core area
Reference voltage