AT90PWM1-16MU Atmel, AT90PWM1-16MU Datasheet - Page 289

• Manufacturer Part Number: AT90PWM1-16MU
• Description: IC AVR PWM 8KB FLASH 16MHZ 32QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM1-16MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 19
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

29. Errata
4378C–AVR–09/08
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1. PSC : Double End-Of-Cycle Interrupt Request in Centered Mode
2. ADC : Conversion accuracy
PSC : Double End-Of-Cycle Interrupt Request in Centered Mode
ADC : Conversion accuracy
In centered mode, after the “expected” End-Of-Cycle Interrupt, a second unexpected Inter-
rupt occurs 1 PSC cycle after the previous interrupt.
Work around:
While CPU cycle is lower than PSC clock, the CPU sees only one interrupt request. For PSC
clock period greater than CPU cycle, the second interrupt request must be cleared by
software.
The conversion accuracy degrades when the ADC clock is 2 MHz.
Work around:
When a 10 bit conversion accuracy is required, use an ADC clock of 1 MHz or below.
At 2 Mhz the ADC can be used as a 7 bits ADC.
AT90PWM1
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