UPD78F9222MC-5A4-A Renesas Electronics America, UPD78F9222MC-5A4-A Datasheet - Page 176
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
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Quantity
Price
Company:
Part Number:
UPD78F9222MC-5A4-A
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FSC
Quantity:
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Manufacturer:
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Quantity:
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10.4.3 A/D converter operation mode
ANI3 by the analog input channel specification register (ADS) and A/D conversion is executed.
(1) A/D conversion operation
174
The operation mode of the A/D converter is the select mode. One channel of analog input is selected from ANI0 to
A/D conversion
By setting bit 7 (ADCS) of the A/D converter mode register (ADM) to 1, the A/D conversion operation of the
voltage, which is applied to the analog input pin specified by the analog input channel specification register
(ADS), is started.
When A/D conversion has been completed, the result of the A/D conversion is stored in the A/D conversion result
register (ADCR, ADCRH), and an interrupt request signal (INTAD) is generated. Once the A/D conversion has
started and when one A/D conversion has been completed, the next A/D conversion operation is immediately
started. The A/D conversion operations are repeated until new data is written to ADS.
If ADM or ADS is written during A/D conversion, the A/D conversion operation under execution is stopped and
restarted from the beginning.
If 0 is written to ADCS during A/D conversion, A/D conversion is immediately stopped.
conversion result is undefined.
Remarks 1. n = 0 to 3
ADCRH
ADCR,
INTAD
2. m = 0 to 3
Rewriting ADM
ADCS = 1
ANIn
Figure 10-12. A/D Conversion Operation
CHAPTER 10 A/D CONVERTER
User’s Manual U16898EJ6V0UD
ANIn
ANIn
Conversion is stopped
Conversion result is not retained
Rewriting ADS
ANIn
ANIn
ANIm
ANIm
ADCS = 0
ANIm
At this time, the
Stopped
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