UPD78F9222MC-5A4-A Renesas Electronics America, UPD78F9222MC-5A4-A Datasheet - Page 166
UPD78F9222MC-5A4-A
Manufacturer Part Number
UPD78F9222MC-5A4-A
Description
MCU 8BIT 4KB FLASH 20PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9221MC-5A4-A.pdf
(418 pages)
Specifications of UPD78F9222MC-5A4-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
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:
UPD78F9222MC-5A4-A
Manufacturer:
FSC
Quantity:
340
Part Number:
UPD78F9222MC-5A4-A
Manufacturer:
NEC
Quantity:
20 000
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10.2 Configuration of A/D Converter
(1) ANI0 to ANI3 pins
(2) Sample & hold circuit
(3) D/A converter
(4) Voltage comparator
164
Analog input
channel specification
register (ADS)
ANI0/P20
ANI1/P21
ANI2/P22
ANI3/P23
Figure 10-2 shows the block diagram of A/D converter.
Caution In the 78K0S/KA1+, V
The A/D converter consists of the following hardware.
These are the analog input pins of the 4-channel A/D converter. They input analog signals to be converted into
digital signals. Pins other than the one selected as the analog input pin by the analog input channel specification
register (ADS) can be used as I/O port pins.
The sample & hold circuit samples the input signal of the analog input pin selected by the selector when A/D
conversion is started, and holds the sampled analog input voltage value during A/D conversion.
The D/A converter is connected between AV
analog input signal.
The voltage comparator compares the sampled analog input voltage and the output voltage of the D/A converter.
sure to connect V
ADS1
2
ADS0
ADCS
SS
Sample & hold circuit
Figure 10-2. Block Diagram of A/D Converter
to a stabilized GND (= 0 V).
FR2
SS
Internal bus
functions alternately as the ground potential of the A/D converter. Be
FR1
CHAPTER 10 A/D CONVERTER
V
3
SS
A/D converter mode
register (ADM)
User’s Manual U16898EJ6V0UD
FR0
REF
ADCE
and V
Controller
Voltage comparator
register (SAR)
approximation
Successive
SS
, and generates a voltage to be compared with the
A/D conversion result register
(ADCR, ADCRH)
D/A converter
INTAD
AV
V
SS
REF
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