ATMEGA16M1-MU Atmel, ATMEGA16M1-MU Datasheet - Page 235

• Manufacturer Part Number: ATMEGA16M1-MU
• Description: IC MCU AVR 16K FLASH 32VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA16M1-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: CAN, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -

8209D–AVR–11/10
Figure 21-14. Differential Measurement Range
Table 21-2.
Example 1:
V
V
V
...
V
V
V
...
V
V
V
ADCn
ADCm
ADCm
ADCm
ADCm
ADCm
ADCm
ADCm
ADCm
– ADMUX = 0xED (ADC3 - ADC2, 10× gain, 2.56V reference, left adjusted result)
– Voltage on ADC3 is 300mV, voltage on ADC2 is 500mV
– ADCR = 512 × 10 × (300 - 500)/2560 = -400 = 0x270
+ 0.999 V
+ 0.998 V
+ 0.001 V
- 0.001 V
- 0.999 V
- V
+ V
- V
REF
REF
REF
/Gain
/GAIN
/GAIN
Correlation Between Input Voltage and Output Codes
REF
REF
REF
REF
REF
/GAIN
/GAIN
/GAIN
/GAIN
/GAIN
Output Code
0x3FF
Read code
0x1FF
0x1FF
0x1FE
0x3FF
0x001
0x000
0x201
0x200
0x1FF
0x000
0x200
...
...
0
ATmega16M1/32M1/64M1
Corresponding decimal value
511
511
510
...
1
0
-1
...
-511
-512
V
REF
/Gain
Differential Input
Voltage (Volts)
235