UPD70F3737GC-UEU-AX Renesas Electronics America, UPD70F3737GC-UEU-AX Datasheet - Page 464

• Manufacturer Part Number: UPD70F3737GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3737GC-UEU-AX

• Package / Case: *
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 20MHz
• Number Of I /o: 84
• Core Processor: RISC
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Program Memory Size: 128KB (128K x 8)
• Data Converters: A/D 12x10b, D/A 2x8b
• Oscillator Type: Internal
• Peripherals: DMA, LVD, PWM, WDT
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

14.4.3 Cautions
464
Observe the following cautions when using the D/A converter of the V850ES/JG3-L.
(1) Do not change the set value of the DA0CSn register while the trigger signal is being issued in the real-time
(2) Before changing the operation mode, be sure to clear the DA0M.DA0CEn bit to 0.
(3) When using one of the P10/AN00 and P11/AN01 pins as an I/O port and the other as a D/A output pin, do so
(4) Make sure that AV
(5) Apply power to AV
(6) No current can be output from the ANOn pin (n = 0, 1) because the output impedance of the D/A converter is
(7) Because the D/A converter stops operation in the STOP mode, the ANO0 and ANO1 pins go into a high-
output mode.
in an application where the port I/O level does not change during D/A output.
high. When connecting a resistor of 2 MΩ or less, insert a JFET input operational amplifier between the
resistor and the ANOn pin.
impedance state, and the power consumption can be reduced.
In the IDLE1, IDLE2, or subclock operation mode, however, the operation continues. To lower the power
consumption, therefore, clear the DA0M.DA0CEn bit to 0.
REF0
REF1
= V
at the same timing as AV
DD
Figure 14-2. External Pin Connection Example
= AV
AV
AV
ANOn
REF1
AV
Preliminary User’s Manual U18953EJ1V0UD
REF0
REF1
CHAPTER 14 D/A CONVERTER
SS
= 2.7 to 3.6 V. If this range is exceeded, the operation is not guaranteed.
0.1 F
0.1 F
REF0
−
+
µ
µ
.
JFET input
operational amplifier
10 F
10 F
µ
µ
Output
V
DD