UPD70F3744GJ-GAE-AX Renesas Electronics America, UPD70F3744GJ-GAE-AX Datasheet - Page 479
UPD70F3744GJ-GAE-AX
Manufacturer Part Number
UPD70F3744GJ-GAE-AX
Description
MCU 32BIT V850ES/JX3 144-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Jx3r
Datasheet
1.UPD70F3743GJ-GAE-AX.pdf
(911 pages)
Specifications of UPD70F3744GJ-GAE-AX
Core Processor
RISC
Core Size
32-Bit
Speed
32MHz
Connectivity
CSI, EBI/EMI, I²C, UART/USART
Peripherals
DMA, LVD, PWM, WDT
Number Of I /o
128
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
40K x 8
Voltage - Supply (vcc/vdd)
2.85 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD70F3744GJ-GAE-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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V850ES/JJ3
14.4.3 Cautions
R01UH0016EJ0400 Rev.4.00
Sep 30, 2010
Observe the following cautions when using the D/A converter of the V850ES/JJ3.
(1) Do not change the set value of the DA0CSn 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.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 in an
(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 high.
(7) Because the D/A converter stops operation in the STOP mode, the ANO0 and ANO1 pins go into a high-
mode.
application where the port I/O level does not change during D/A output.
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.
consumption, therefore, clear the DA0M.DA0CEn bit to 0.
REF0
REF1
= V
at the same timing as AV
DD
= AV
Figure 14-2. External Pin Connection Example
REF1
AV
AV
ANOn
AV
REF0
REF1
= 3.0 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 lower the power
Page 463 of 892
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