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AT89LP4052-20PI データシート(PDF) 71 Page - ATMEL Corporation

部品番号 AT89LP4052-20PI
部品情報  8-bit Microcontroller with 2/4-Kbyte Flash
PDF  90 Pages
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メーカー  ATMEL [ATMEL Corporation]
ホームページ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89LP4052-20PI データシート(HTML) 71 Page - ATMEL Corporation

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3547F–MICRO–6/06
AT89LP2052/LP4052
Figure 22-21. ISP/Serial Programming Device Connections
Note:
SCK frequency should be less than 5 MHz.
22.5.1
Power-up Sequence
Execute this sequence to power-up the device before serial programming.
1.
Apply power between VCC and GND pins.
2.
Keep SCK (P1.7) and SS (P1.4) at “L”.
3.
Wait 10 µs and bring RST and SS to “H”.
4.
Wait at least 2 ms for internal Power-on Reset to time out.
Figure 22-22. Serial Programming Power-up Sequence
AT89LP2052/LP4052
VCC
RST
P1.7/SCK
P1.5/MOSI
GND
2.7 to 5.5V
Serial Clock
Se rial In
VIH
P1.4/SS
P1.6/MISO
Serial Out
CS
VCC
RST
SS
SCK
HIGH Z
MISO
HIGH Z
MOSI



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