AT90PWM81-16MF Atmel, AT90PWM81-16MF Datasheet - Page 225

• Manufacturer Part Number: AT90PWM81-16MF
• Description: IC MCU AVR 8K FLASH ISP 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM81-16MF

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 256 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 ~ 105°C
• Package / Case: 32-MLF®, QFN
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7734P–AVR–08/10
• Bit 5, 4– AMP0G1, 0: Amplifier 0 Gain Selection Bits
These 2 bits determine the gain of the amplifier 0.
The different setting are shown in
Table 17-7.
To ensure an accurate result, after the gain value has been changed, the amplifier input needs to have a
quite stable input value during at least 4 Amplifier synchronization clock periods.
• Bit 3– AMP0GS: Amplifier 0 Ground Select of AMP0
This bit select negative input of the amplifier:
Set this bit to ground the Amplifier 0 negative input.
Clear this bit to normally use the Amplifier 0 differential input.
• Bit 1, 0– AMP0TS1, AMP0TS0: Amplifier 0 Trigger Source Selection Bits
In accordance with the Table 17-8, these 2 bits select the event which will generate the trigger for the
amplifier 0. This trigger source is necessary to start the conversion on the amplified channel.
Table 17-8.
AMP0G1
0
0
1
1
AMP0TS1
0
0
1
1
Amplifier 0 Gain Selection
AMP0 Auto Trigger Source Selection
AMP0G0
0
1
0
1
AMP0TS0
0
1
0
1
Description
Gain 5
Gain 10
Gain 20
Gain 40
Table
Description
Auto synchronization on ADC Clock/8
Trig on PSCRASY
Trig on PSC2ASY
17-7.
AT90PWM81
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