ATMEGA16U2-16AU Atmel, ATMEGA16U2-16AU Datasheet - Page 41

• Manufacturer Part Number: ATMEGA16U2-16AU
• Description: 8-bit Microcontrollers - MCU 16K Flash
• Manufacturer: Atmel

Specifications of ATMEGA16U2-16AU

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: AVR
• Data Bus Width: 8 bit
• Program Memory Size: 16 KB
• Data Ram Size: 1.25 KB
• Data Rom Size: 512 B
• Program Memory Type: Flash
• Factory Pack Quantity: 1250

ATmega8U2/16U2/32U2
• Bit 1 – PLLE: PLL Enable
When the PLLE is set, the PLL is started. Note that the Calibrated 8 MHz Internal RC oscillator is
automatically enabled when the PLLE bit is set and with PINMUX (see PLLFRQ register) is set.
The PLL must be disabled before entering Power down mode in order to stop Internal RC Oscil-
lator and avoid extra-consumption.
• Bit 0 – PLOCK: PLL Lock Detector
When the PLOCK bit is set, the PLL is locked to the reference clock. After the PLL is enabled, it
takes about several ms for the PLL to lock. To clear PLOCK, clear PLLE.
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