UPD30121 NEC [NEC], UPD30121 Datasheet - Page 16

• Manufacturer Part Number: UPD30121
• Description: VR4121TM 64-/32-BIT MICROPROCESSOR
• Manufacturer: NEC [NEC]

Caution The V
16
V
GNDP
V
GNDPD
CV
CGND
DV
DGND
AV
AGND
PIUV
PIUGND
V
GND2
V
GND3
DD
DD
DD
DD
(15) Dedicated V
Signal Name
DD
DD
DD
P
PD
2
3
DD
these power supplies are applied. However, do not apply one type of power for more than one
second while the other power supply is not applied.
R
4121 has two types of power supplies. There are no restrictions as to the sequence in which
DD
Power-Supply System
and GND signals
2.5 V
2.5 V
2.5 V
2.5 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
2.5 V
2.5 V
3.3 V
3.3 V
Data Sheet U14691EJ1V0DS00
Dedicated V
Dedicated GND for the PLL analog unit
Dedicated V
Dedicated GND for the PLL digital unit. Its function is identical to GND2.
Dedicated V
Dedicated GND for the oscillator
Dedicated V
becomes the maximum of the analog output of AUDIOOUT signal.
Dedicated GND for D/A converter. The voltage applied to this pin
becomes the minimum of the analog output of AUDIOOUT signal.
Dedicated V
becomes the maximum voltage that can be detected by the A/D interface
signals (8 lines).
Dedicated GND for the A/D converter. The voltage applied to this pin
becomes the minimum voltage that can be detected by the A/D interface
signals (8 lines).
Dedicated V
Dedicated GND for touch-sensitive panel interface
Normal 2.5-V system V
Normal 2.5-V system GND
Normal 3.3-V system V
Normal 3.3-V system GND
DD
DD
DD
DD
DD
DD
for the PLL analog unit
for the PLL digital unit. Its function is identical to V
for the oscillator
for the D/A converter. The voltage applied to this pin
for the A/D converter. The voltage applied to this pin
for touch-sensitive panel interface
DD
DD
Function
DD
PD30121
2.