UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 715

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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13.7 Cautions
(1) When A/D converter is not used
(2) Input range of ANI2n pin
(3) Countermeasures against noise
(4) Alternate input
When the A/D converter is not used, the power consumption can be reduced by clearing the AD2M0.AD2CE
and AD2M0.AD2PS bits to 0.
Input the voltage within the specified range to the ANI2n pin. If a voltage equal to or higher than AV
equal to or lower than AV
conversion value of that channel is undefined, and the conversion value of the other channels may also be
affected.
To maintain the 10-bit resolution, the ANI2n pin must be effectively protected from noise. The influence of
noise increases as the output impedance of the analog input source becomes higher. To lower the noise,
connecting an external capacitor as shown in Figure 13-12 is recommended.
Remark
The analog input pin (ANI2n) functions alternately as input port (P7n). When selecting one of the ANI2n pin to
execute A/D conversion, do not execute an input instruction to port 7 during conversion as the conversion
resolution may drop.
C = 100 to 1000 pF
V850E/IF3: n = 0 to 3
V850E/IG3: n = 0 to 7
SS2
Figure 13-12. Processing of Analog Input Pin
(even within the range of the absolute maximum ratings) is input to this pin, the
CHAPTER 13 A/D CONVERTER 2
User’s Manual U18279EJ3V0UD
Clamp with a diode with a low V
if noise equal to or higher than AV
to or lower than AV
ANI2n
EV
AV
AV
EV
DD0
DD2
SS2
SS0
, EV
, EV
SS1
DD1
, EV
, EV
SS2
DD2
SS2
(V850E/IG3 only), V
may be generated.
(V850E/IG3 only), V
F
(0.3 V or less)
DD2
or equal
SS0
DD0
, V
, V
SS1
DD1
DD2
713
or