Rainbow-electronics ATtiny12 Manual do Utilizador descarregar pdf (Página 46)

ATtiny11/12

1006C–09/01

provides a convenient way to download program and data into the ATtiny12 inside the

user’s system.

The program and data memory arrays in the ATtiny12 are programmed byte-by-byte in

either programming mode. For the EEPROM, an auto-erase cycle is provided within the

self-timed write instruction in the Low-voltage Serial Programming mode.

ATtiny11/12 During programming, the supply voltage must be in accordance with Table 22.

Table 22. Supply Voltage during Programming

High-voltage Serial

Programming

This section describes how to program and verify Flash Program memory, EEPROM

Data memory (ATtiny12), lock bits and fuse bits in the ATtiny11/12.

Figure 27. High-voltage Serial Programming

Part Low-voltage Serial Programming High-voltage Serial Programming

ATtiny11L Not applicable 4.5 - 5.5V

ATtiny11 Not applicable 4.5 - 5.5V

ATtiny12V 2.2 - 5.5V 4.5 - 5.5V

ATtiny12L 2.7 - 5.5V 4.5 - 5.5V

ATtiny12 4.0 - 5.5V 4.5 - 5.5V

PB5 (RESET)

PB3 (XTAL1)

GND

VCC

PB2

PB1

PB0

SERIAL DATA OUTPUT

SERIAL INSTR. INPUT

SERIAL DATA INPUT

SERIAL CLOCK INPUT

11.5 - 12.5V 4.5 - 5.5V

ATtiny

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Rainbow-electronics ATtiny12 Manual do Utilizador Página 46