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ATmega325P bảng dữ liệu(PDF) 286 Page - ATMEL Corporation

tên linh kiện ATmega325P
Giải thích chi tiết về linh kiện  8-bit Microcontroller with 32K Bytes In-System Programmable Flash
PDF  364 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega325P bảng dữ liệu(HTML) 286 Page - ATMEL Corporation

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286
8023F–AVR–07/09
ATmega325P/3250P
Figure 25-10. 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. V
CC - 0.3V < AVCC < VCC + 0.3V, however, AVCC should always be within 1.8 - 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
instruction. The Chip Erase operation turns the content of every memory location in both the
Program and EEPROM arrays into 0xFF.
Depending on CKSEL Fuses, a valid clock must be present. The minimum low and high periods
for the serial clock (SCK) input are defined as follows:
Low: > 2 CPU clock cycles for f
ck < 12 MHz, 3 CPU clock cycles for fck >= 12 MHz
High: > 2 CPU clock cycles for f
ck < 12 MHz, 3 CPU clock cycles for fck >= 12 MHz
VCC
GND
XTAL1
SCK
MISO
MOSI
RESET
+1.8 - 5.5V
AVCC
+1.8 - 5.5V
(2)



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