UPD78F1142AGB-GAH-AX Renesas Electronics America, UPD78F1142AGB-GAH-AX Datasheet - Page 331
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UPD78F1142AGB-GAH-AX
Manufacturer Part Number
UPD78F1142AGB-GAH-AX
Description
MCU 16BIT 78K0R/KX3 64-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1142AGB-GAH-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1142AGB-GAH-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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(3) Input range of ANI0 to ANI7
(4) Conflicting operations
(5) Noise countermeasures
Observe the rated range of the ANI0 to ANI7 input voltage. If a voltage of AV
(even in the range of absolute maximum ratings) is input to an analog input channel, the converted value of that
channel becomes undefined. In addition, the converted values of the other channels may also be affected.
<1> Conflict between A/D conversion result register (ADCR, ADCRH) write and ADCR or ADCRH read by
<2> Conflict between ADCR or ADCRH write and A/D converter mode register (ADM) write, analog input
To maintain the 10-bit resolution, attention must be paid to noise input to the AV
<1> Connect a capacitor with a low equivalent resistance and a good frequency response to the power supply.
<2> The higher the output impedance of the analog input source, the greater the influence. To reduce the
<3> Do not switch these pins with other pins during conversion.
<4> The accuracy is improved if the HALT mode is set immediately after the start of conversion.
Reference
C = 100 to 1,000 pF
voltage
input
instruction upon the end of conversion
ADCR or ADCRH read has priority. After the read operation, the new conversion result is written to ADCR
or ADCRH.
channel specification register (ADS), or A/D port configuration register (ADPC) write upon the end of
conversion
ADM, ADS, or ADPC write has priority. ADCR or ADCRH write is not performed, nor is the conversion end
interrupt signal (INTAD) generated.
noise, connecting external C as shown in Figure 10-26 is recommended.
Figure 10-26. Analog Input Pin Connection
CHAPTER 10 A/D CONVERTER
User’s Manual U17854EJ9V0UD
AV
AV
V
ANI0 to ANI7
SS
REF
SS
If there is a possibility that noise equal to or higher than AV
equal to or lower than AV
small V
F
value (0.3 V or lower).
SS
may enter, clamp with a diode with a
REF
REF
pin and pins ANI0 to ANI7.
or higher and AV
SS
REF
or lower
or
329
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