UPD70F3735GK-GAK-AX Renesas Electronics America, UPD70F3735GK-GAK-AX Datasheet - Page 445

• Manufacturer Part Number: UPD70F3735GK-GAK-AX
• Description: MCU 32BIT V850ES/JX3-L 80-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3735GK-GAK-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 66
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 8x10b, D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JF3-L
14.4.3 Cautions
R01UH0017EJ0400 Rev.4.00
Sep 30, 2010
Observe the following cautions when using the D/A converter of the V850ES/JF3-L.
(1) Do not change the set value of the DA0CS0 register while the trigger signal is being issued in the real-time output
(2) Before changing the operation mode, be sure to clear the DA0M.DA0CE0 bit to 0.
(3) Make sure that AV
(4) Apply power to AV
(5) No current can be output from the ANO0 pin because the output impedance of the D/A converter is high. When
(6) Because the D/A converter stops operation in the STOP mode, the ANO0 pin goes into a high-impedance state,
mode.
connecting a resistor of 2 MΩ or less, insert a JFET input operational amplifier between the resistor and the ANO0
pin.
and the power consumption can be reduced.
However, the pin status is kept in the IDLE1, IDLE2, or subclock operation mode.
consumption, therefore, clear the DA0M.DA0CE0 bit to 0.
REF0
REF1
= V
at the same timing as AV
DD
= AV
Figure 14-2. External Pin Connection Example
REF1
AV
AV
ANO0
AV
REF0
REF1
= 2.7 to 3.6 V. If this range is exceeded, the operation is not guaranteed.
SS
REF0
0.1 F
0.1 F
.
−
+
μ
μ
JFET input
operational amplifier
10 F
10 F
μ
μ
Output
V
DD
CHAPTER 14 D/A CONVERTER
To reduce the power
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