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AN2447
| Title |
Title
Measure VCC/Battery Voltage Without Using I/O Pin on tinyAVR and megaAVR
|
|---|---|
| Name |
Name
AN2447
|
| Date |
Date
05/15/2019
|
| Description |
Description
This Application Note describes a low-power solution to measure the VCC/battery voltage without using any I/O pins or external components.
|
Silicon Products
| Description | Product |
Description |
|---|---|---|
| AT90CAN32 | AT90CAN32 | |
| AT90CAN64 | AT90CAN64 | |
| AT90PWM1 | AT90PWM1 | |
| AT90PWM161 | AT90PWM161 | |
| AT90PWM216 | AT90PWM216 | |
| AT90PWM2B | AT90PWM2B | |
| AT90PWM316 | AT90PWM316 | |
| AT90PWM3B | AT90PWM3B | |
| AT90PWM81 | AT90PWM81 | |
| ATmega128 | ATmega128 | |
| ATmega1280 | ATmega1280 | |
| ATmega1281 | ATmega1281 | |
| ATmega1284 | ATmega1284 | |
| ATMEGA1284P | ATMEGA1284P | |
|
ATmega128A
ATmega128A
|
ATmega128A | ATmega128A |
|
ATmega16
|
ATmega16 | |
|
ATMEGA1608
ATMEGA1608
|
ATMEGA1608 | ATMEGA1608 |
|
ATMEGA1609
ATMEGA1609
|
ATMEGA1609 | ATMEGA1609 |
| ATmega164A | ATmega164A | |
|
ATmega164P
|
ATmega164P | |
| ATmega164PA | ATmega164PA | |
|
ATmega165P
Newer Device Available ATMEGA165PA
|
ATmega165P | Newer Device Available ATMEGA165PA |
| ATmega165PA | ATmega165PA | |
|
ATmega168
|
ATmega168 | |
| ATmega168A | ATmega168A | |
|
ATmega168P
|
ATmega168P | |
| ATmega168PA | ATmega168PA | |
|
ATmega168PB
ATmega168PB
|
ATmega168PB | ATmega168PB |
| ATmega169A | ATmega169A | |
|
ATmega169P
Newer Device Available ATMEGA169PA
|
ATmega169P | Newer Device Available ATMEGA169PA |
| ATmega169PA | ATmega169PA | |
| ATMEGA16A | ATMEGA16A | |
| ATMEGA16M1 | ATMEGA16M1 | |
| ATmega16U4 | ATmega16U4 | |
| ATmega2560 | ATmega2560 | |
| ATmega2561 | ATmega2561 | |
|
ATmega32
Newer Device Available ATMEGA32A
|
ATmega32 | Newer Device Available ATMEGA32A |
|
ATMEGA3208
ATMEGA3208
|
ATMEGA3208 | ATMEGA3208 |
|
ATMEGA3209
ATMEGA3209
|
ATMEGA3209 | ATMEGA3209 |
| ATmega324A | ATmega324A | |
|
ATmega324P
|
ATmega324P | |
| ATmega324PA | ATmega324PA | |
|
ATmega324PB
ATmega324PB
|
ATmega324PB | ATmega324PB |
|
ATmega325
Newer Device Available ATMEGA325A
|
ATmega325 | Newer Device Available ATMEGA325A |
| ATmega3250 | ATmega3250 | |
| ATmega3250A | ATmega3250A | |
|
ATmega3250P
Newer Device Available ATMEGA3250PA
|
ATmega3250P | Newer Device Available ATMEGA3250PA |
| ATmega3250PA | ATmega3250PA | |
| ATmega325A | ATmega325A | |
|
ATmega325P
Newer Device Available ATMEGA325PA
|
ATmega325P | Newer Device Available ATMEGA325PA |
| ATmega325PA | ATmega325PA | |
|
ATmega328
Not Recommended for new designs
|
ATmega328 | Not Recommended for new designs |
|
ATmega328P
Not Recommended for new designs
|
ATmega328P | Not Recommended for new designs |
|
ATMEGA328PB
ATmega328PB
|
ATMEGA328PB | ATmega328PB |
|
ATmega329
Newer Device Available ATMEGA329A
|
ATmega329 | Newer Device Available ATMEGA329A |
|
ATmega3290
Newer Device Available ATMEGA3290A
|
ATmega3290 | Newer Device Available ATMEGA3290A |
| ATmega3290A | ATmega3290A | |
|
ATmega3290P
Newer Device Available ATMEGA3290PA
|
ATmega3290P | Newer Device Available ATMEGA3290PA |
| ATMEGA3290PA | ATMEGA3290PA | |
| ATmega329A | ATmega329A | |
|
ATmega329P
Newer Device Available ATMEGA329PA
|
ATmega329P | Newer Device Available ATMEGA329PA |
| ATmega329PA | ATmega329PA | |
| ATmega32A | ATmega32A | |
| ATMEGA32M1 | ATMEGA32M1 | |
| ATmega32U4 | ATmega32U4 | |
|
ATMEGA48
|
ATMEGA48 | |
|
ATMEGA4808
ATMEGA4808
|
ATMEGA4808 | ATMEGA4808 |
|
ATMEGA4809
ATMEGA4809
|
ATMEGA4809 | ATMEGA4809 |
| ATmega48A | ATmega48A | |
|
ATmega48P
|
ATmega48P | |
| ATmega48PA | ATmega48PA | |
|
ATmega48PB
ATmega48PB
|
ATmega48PB | ATmega48PB |
|
ATmega64
Newer Device Available ATMEGA64A
|
ATmega64 | Newer Device Available ATMEGA64A |
| ATmega640 | ATmega640 | |
|
ATmega644
Newer Device Available ATMEGA644A
|
ATmega644 | Newer Device Available ATMEGA644A |
| ATmega644A | ATmega644A | |
|
ATmega644P
Newer Device Available ATMEGA644PA
|
ATmega644P | Newer Device Available ATMEGA644PA |
| ATmega644PA | ATmega644PA | |
|
ATmega645
Newer Device Available ATMEGA645A
|
ATmega645 | Newer Device Available ATMEGA645A |
|
ATmega6450
Newer Device Available ATMEGA6450A
|
ATmega6450 | Newer Device Available ATMEGA6450A |
|
ATmega6450
Newer Device Available ATMEGA6450A
|
ATmega6450 | Newer Device Available ATMEGA6450A |
| ATmega6450A | ATmega6450A | |
| ATmega6450P | ATmega6450P | |
| ATmega645A | ATmega645A | |
| ATmega645P | ATmega645P | |
|
ATmega649
Newer Device Available ATMEGA649A
|
ATmega649 | Newer Device Available ATMEGA649A |
|
ATmega6490
Newer Device Available ATMEGA6490A
|
ATmega6490 | Newer Device Available ATMEGA6490A |
| ATmega6490A | ATmega6490A | |
| ATmega6490P | ATmega6490P | |
| ATmega649A | ATmega649A | |
| ATmega649P | ATmega649P | |
| ATmega64A | ATmega64A | |
| ATmega64M1 | ATmega64M1 | |
|
ATmega8
|
ATmega8 | |
|
ATMEGA808
ATMEGA808
|
ATMEGA808 | ATMEGA808 |
|
ATMEGA809
ATMEGA809
|
ATMEGA809 | ATMEGA809 |
| ATmega8515 | ATmega8515 | |
| ATmega8535 | ATmega8535 | |
|
ATmega88
|
ATmega88 | |
| ATmega88A | ATmega88A | |
|
ATmega88P
|
ATmega88P | |
| ATmega88PA | ATmega88PA | |
|
ATmega88PB
ATmega88PB
|
ATmega88PB | ATmega88PB |
| ATmega8A | ATmega8A | |
|
ATMEGAET128
ATmegaET128
|
ATMEGAET128 | ATmegaET128 |
|
ATMEGAET64M1
ATmegaET64M1
|
ATMEGAET64M1 | ATmegaET64M1 |
|
ATMEGAS128
Radiation Tolerant AVR8 MCU
|
ATMEGAS128 | Radiation Tolerant AVR8 MCU |
|
ATMEGAS64M1
Radiation Tolerant AVR8 MCU
|
ATMEGAS64M1 | Radiation Tolerant AVR8 MCU |
| ATtiny102 | ATtiny102 | |
| ATTINY104 | ATTINY104 | |
|
ATTINY1604
ATTINY1604
|
ATTINY1604 | ATTINY1604 |
|
ATTINY1606
ATTINY1606
|
ATTINY1606 | ATTINY1606 |
|
ATTINY1607
ATTINY1607
|
ATTINY1607 | ATTINY1607 |
|
ATTINY1614
ATTINY1614
|
ATTINY1614 | ATTINY1614 |
|
ATTINY1616
ATTINY1616
|
ATTINY1616 | ATTINY1616 |
|
ATTINY1617
ATTINY1617
|
ATTINY1617 | ATTINY1617 |
| ATtiny1634 | ATtiny1634 | |
| ATtiny167 | ATtiny167 | |
| ATtiny20 | ATtiny20 | |
|
ATTINY202
ATTINY202
|
ATTINY202 | ATTINY202 |
|
ATTINY204
ATTINY204
|
ATTINY204 | ATTINY204 |
|
ATTINY212
ATTINY212
|
ATTINY212 | ATTINY212 |
|
ATTINY214
ATTINY214
|
ATTINY214 | ATTINY214 |
|
ATtiny2313
Newer Device Available ATTINY2313A
|
ATtiny2313 | Newer Device Available ATTINY2313A |
| ATtiny2313A | ATtiny2313A | |
|
ATtiny24
Newer Device Available ATTINY24A
|
ATtiny24 | Newer Device Available ATTINY24A |
| ATtiny24A | ATtiny24A | |
| ATtiny25 | ATtiny25 | |
| ATtiny26 | ATtiny26 | |
| ATtiny261A | ATtiny261A | |
|
ATTINY28
ATTINY28
|
ATTINY28 | ATTINY28 |
|
ATTINY3216
ATTINY3216
|
ATTINY3216 | ATTINY3216 |
|
ATTINY3217
ATTINY3217
|
ATTINY3217 | ATTINY3217 |
| ATtiny40 | ATtiny40 | |
|
ATTINY402
ATTINY402
|
ATTINY402 | ATTINY402 |
|
ATTINY404
ATTINY404
|
ATTINY404 | ATTINY404 |
|
ATTINY406
ATTINY406
|
ATTINY406 | ATTINY406 |
|
ATTINY412
ATTINY412
|
ATTINY412 | ATTINY412 |
|
ATTINY414
ATTINY414
|
ATTINY414 | ATTINY414 |
|
ATTINY416
ATTINY416
|
ATTINY416 | ATTINY416 |
|
ATTINY417
ATTINY417
|
ATTINY417 | ATTINY417 |
| ATtiny4313 | ATtiny4313 | |
| ATtiny43U | ATtiny43U | |
|
ATtiny44
Newer Device Available ATTINY44A
|
ATtiny44 | Newer Device Available ATTINY44A |
| ATtiny441 | ATtiny441 | |
| ATtiny44A | ATtiny44A | |
| ATtiny45 | ATtiny45 | |
|
ATtiny461
Newer Device Available ATTINY461A
|
ATtiny461 | Newer Device Available ATTINY461A |
| ATtiny461A | ATtiny461A | |
| ATtiny48 | ATtiny48 | |
|
ATTINY804
ATTINY804
|
ATTINY804 | ATTINY804 |
|
ATTINY806
ATTINY806
|
ATTINY806 | ATTINY806 |
|
ATTINY807
ATTINY807
|
ATTINY807 | ATTINY807 |
|
ATTINY814
ATTINY814
|
ATTINY814 | ATTINY814 |
|
ATTINY816
ATTINY816
|
ATTINY816 | ATTINY816 |
|
ATTINY817
ATTINY817
|
ATTINY817 | ATTINY817 |
| ATtiny828 | ATtiny828 | |
|
ATtiny84
Newer Device Available ATTINY84A
|
ATtiny84 | Newer Device Available ATTINY84A |
| ATtiny841 | ATtiny841 | |
| ATtiny84A | ATtiny84A | |
| ATtiny85 | ATtiny85 | |
|
ATtiny861
Newer Device Available ATTINY861A
|
ATtiny861 | Newer Device Available ATTINY861A |
| ATtiny861A | ATtiny861A | |
|
ATTINY87
ATtiny87
|
ATTINY87 | ATtiny87 |
| ATTINY88 | ATTINY88 |