UPD78F1211GB-GAF-AX Renesas Electronics America, UPD78F1211GB-GAF-AX Datasheet - Page 602
![no-image](/images/manufacturer_photos/0/5/560/renesas_electronics_america_sml.jpg)
UPD78F1211GB-GAF-AX
Manufacturer Part Number
UPD78F1211GB-GAF-AX
Description
MCU 16BIT 78K0R/LX3 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Ix3r
Datasheet
1.UPD78F1201MC-CAB-AX.pdf
(1067 pages)
Specifications of UPD78F1211GB-GAF-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
40MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Price
Company:
Part Number:
UPD78F1211GB-GAF-AX
Manufacturer:
Renesas Electronics America
Quantity:
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(5) ANI0/P20 to ANI7/P27 and ANI8/P150 to ANI11/P153
(6) Input impedance of ANI0 to ANI11 pins
(7) AV
600
<1> The analog input pins (ANI0 to ANI7) are also used as input port pins (P20 to P27).
<2> If a digital pulse is applied to the pins adjacent to the pins currently used for A/D conversion, the expected
This A/D converter charges a sampling capacitor for sampling during sampling time.
Therefore, only a leakage current flows when sampling is not in progress, and a current that charges the
capacitor flows during sampling. Consequently, the input impedance fluctuates depending on whether sampling
is in progress, and on the other states.
To make sure that sampling is effective, however, it is recommended to keep the output impedance of the analog
input source to within 1 kΩ, and to connect a capacitor of about 100 pF to the ANI0 to ANI11 pins (see Figure 12-
23).
A series resistor string of several tens of kΩ is connected between the AV
Therefore, if the output impedance of the reference voltage source is high, this will result in a series connection to
the series resistor string between the AV
Remarks
REF
Reference
C = 100 to 1,000 pF
The analog input pins (ANI8 to ANI11) are also used as input port pins (P150 to P153).
When A/D conversion is performed with any of ANI0 to ANI11 selected, do not access P20 to P27 and
P150 to P153 while conversion is in progress; otherwise the conversion resolution may be degraded. It is
recommended to select pins used as P20 to P27 and P150 to P153 starting with the ANI0/P20 that is the
furthest from AV
value of the A/D conversion may not be obtained due to coupling noise. Therefore, do not apply a pulse to
the pins adjacent to the pin undergoing A/D conversion.
pin input impedance
voltage
input
ANI0 to ANI5
ANI0 to ANI7
ANI0 to ANI9
ANI0 to ANI10 : 48-pin products of 78K0R/IC3, 78K0R/ID3
ANI0 to ANI11 : 78K0R/IE3
REF
.
: 78K0R/IB3
: 38-pin products of 78K0R/IC3
: 44-pin products of 78K0R/IC3
Figure 12-23. Analog Input Pin Connection
CHAPTER 12 A/D CONVERTER
REF
User’s Manual U19678EJ1V1UD
and AV
AV
ANI0 to ANI11
AV
V
SS
REF
SS
If there is a possibility that noise equal to or higher than AV
equal to or lower than AV
small V
SS
pins, resulting in a large reference voltage error.
F
value (0.3 V or lower).
SS
may enter, clamp with a diode with a
REF
and AV
SS
pins.
REF
or
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