UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 678
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UPD784026
Manufacturer Part Number
UPD784026
Description
16/8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD784026.pdf
(759 pages)
- Current page: 678 of 759
- Download datasheet (3Mb)
(5) A/D converter
(6) D/A converter
638
The current flowing to the AV
register (ADM). The current can be further reduced, if required, by cutting the current supply to the AV
external circuitry.
Make sure that the AV
the STOP mode, not only does the current consumption increase, but the reliability is also affected.
In the STOP mode and IDLE mode the D/A converter still consumes a certain current. Clearing (0) the both DACEn
(n = 0, 1) bits of the D/A converter mode register (DAM) sets the ANOn (n = 0/1) output to high impedance, enabling
the current consumption to be reduced. (power consumption is not reduced if only one of the DACEn bits is cleared
to 0).
The current consumption at resistor string can be eliminated by setting the voltage input to the AV
potential as AV
and therefore the AV
The current consumption of the PD784026 can be minimized by making the input voltage of the AV
as the input voltage of the AV
ANOn pin goes into a high-impedance state.
Also, a voltage should not be applied to the ANOn pins from off-chip, as this may result in an increase in the current
consumption, and the PD784026 may suffer damage or reduced reliability.
REF3
. The ANOn output when the DACEn bit of the DAM is set (1) will be at the same potential as AV
REF3
DD
pin voltage should be set so as to minimize the current consumption of the next-stage circuit.
pin is not at the same potential as the V
DD
REF3
, AV
pin, and by clearing both the DACEn bits of DAM to 0. However, the output of the
REF1
CHAPTER 22 STANDBY FUNCTION
pins can be reduced by clearing (0) the CS bit (bit 7) of the A/D converter mode
DD
pin. Unless power is supplied to the AV
REF2
REF2
pin to the same
pin the same
REF1
DD
pin with
pin in
REF3
,
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