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ATTINY11L-2SC Datasheet(PDF) 5 Page - ATMEL Corporation |
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ATTINY11L-2SC Datasheet(HTML) 5 Page - ATMEL Corporation |
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5 / 91 page  5 ATtiny11/12 1006D–AVR–07/03 The ATtiny12 AVR is supported with a full suite of program and system development tools including: macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits. Pin Descriptions VCC Supply voltage pin. GND Ground pin. Port B (PB5..PB0) Port B is a 6-bit I/O port. PB4..0 are I/O pins that can provide internal pull-ups (selected for each bit). On ATtiny11, PB5 is input only. On ATtiny12, PB5 is input or open-drain output. The port pins are tri-stated when a reset condition becomes active, even if the clock is not running. The use of pins PB5..3 as input or I/O pins is limited, depending on reset and clock settings, as shown below. Notes: 1. “Used” means the pin is used for reset or clock purposes. 2. “-” means the pin function is unaffected by the option. 3. Input means the pin is a port input pin. 4. On ATtiny11, PB5 is input only. On ATtiny12, PB5 is input or open-drain output. 5. I/O means the pin is a port input/output pin. XTAL1 Input to the inverting oscillator amplifier and input to the internal clock operating circuit. XTAL2 Output from the inverting oscillator amplifier. RESET Reset input. An external reset is generated by a low level on the RESET pin. Reset pulses longer than 50 ns will generate a reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a reset. Clock Options The device has the following clock source options, selectable by Flash fuse bits as shown: Table 2. PB5..PB3 Functionality vs. Device Clocking Options Device Clocking Option PB5 PB4 PB3 External Reset Enabled Used(1) -(2) - External Reset Disabled Input(3)/I/O(4) -- External Crystal - Used Used External Low-frequency Crystal - Used Used External Ceramic Resonator - Used Used External RC Oscillator - I/O(5) Used External Clock - I/O Used Internal RC Oscillator - I/O I/O Table 3. Device Clocking Options Select Device Clocking Option ATtiny11 CKSEL2..0 ATtiny12 CKSEL3..0 External Crystal/Ceramic Resonator 111 1111 - 1010 External Low-frequency Crystal 110 1001 - 1000 External RC Oscillator 101 0111 - 0101 |
Similar Part No. - ATTINY11L-2SC |
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Similar Description - ATTINY11L-2SC |
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