 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
ATmega16 датащи(PDF) 273 Page - ATMEL Corporation |
|
|
|||||||||||||||||||||||||||||
ATmega16 датащи(HTML) 273 Page - ATMEL Corporation |
|
|
273 / 357 page  273 2466S–AVR–05/09 ATmega16(L) Notes: 1. tWLRH is valid for the Write Flash, Write EEPROM, Write Fuse bits and Write Lock bits commands. 2. tWLRH_CE is valid for the Chip Erase command. Serial Downloading Both the Flash and EEPROM memory arrays can be programmed using the serial SPI bus while RESET is pulled to GND. The serial interface consists of pins SCK, MOSI (input), and MISO (output). After RESET is set low, the Programming Enable instruction needs to be executed first before program/erase operations can be executed. NOTE, in Table 114 on page 273, the pin mapping for SPI programming is listed. Not all parts use the SPI pins dedicated for the internal SPI interface. SPI Serial Programming Pin Mapping Figure 136. SPI Serial Programming and Verify (1) Notes: 1. If the device is clocked by the Internal Oscillator, it is no need to connect a clock source to the XTAL1 pin. 2. VCC -0.3V < AVCC < VCC +0.3V, however, AVCC should always be within 2.7 - 5.5V When programming the EEPROM, an auto-erase cycle is built into the self-timed programming operation (in the serial mode ONLY) and there is no need to first execute the Chip Erase instruc- tBVDV BS1 Valid to DATA valid 0 250 ns tOLDV OE Low to DATA Valid 250 ns tOHDZ OE High to DATA Tri-stated 250 ns Table 113. Parallel Programming Characteristics, V CC = 5 V ± 10% (Continued) Symbol Parameter Min Typ Max Units Table 114. Pin Mapping SPI Serial Programming Symbol Pins I/O Description MOSI PB5 I Serial Data in MISO PB6 O Serial Data out SCK PB7 I Serial Clock VCC GND XTAL1 SCK MISO MOSI RESET PB5 PB6 PB7 +2.7 - 5.5V AVCC +2.7 - 5.5V (2) |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
