UPD70F3201YGC-YEU-A Renesas Electronics America, UPD70F3201YGC-YEU-A Datasheet - Page 300

• Manufacturer Part Number: UPD70F3201YGC-YEU-A
• Description: MCU 32BIT I2C 100TQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Sx2r

Specifications of UPD70F3201YGC-YEU-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 2.7 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

12.4.3 Cautions
298
Observe the following cautions when using the D/A converter of the V850ES/SA2 and V850ES/SA3.
(1) Do not change the set value of the DACSn register while the trigger signal is being issued in the real-time
(2) Before changing the operation mode, be sure to clear DACEn to 0.
(3) When using only one channel of the D/A converter, connect the pins that are not used as analog outputs to
(4) When using the P80/ANO0 and P81/ANO1 pins as port pins (when not using the D/A converter), make sure
(5) When not using the D/A converter in the standby mode, clear the DACS bit to 0, and then change to the
(6) Make sure that V
(7) Apply power to AV
(8) No current can be output from the ANOn pin (n = 0, 1) because the output impedance of the D/A converter is
output mode.
V
that their input level does not change much.
standby mode. Connecting the AV
guaranteed.
high. When connecting a resistor of 5 MΩ or less, insert a JFET input operational amplifier between the
resistor and the ANOn pin.
SS
.
DD
DD
= EV
at the same timing as V
DD
Figure 12-2. External Pin Connection Example
= AV
ANOn
AV
AV
AV
DD
REF1
CHAPTER 12 D/A CONVERTER
REF1
DD
SS
= AV
User’s Manual U15905EJ2V1UD
pin to V
REF1
DD
SS
0.1 F
0.1 F
.
= 2.2 to 2.7 V. If this range is exceeded, the operation is not
further reduces the power consumption.
−
+
µ
µ
JFET input
operational amplifier
10 F
10 F
µ
µ
Output
EV
DD